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Yoon TW, Park H, Lee J, Yoo S, Kim YH, Weon BM, Kim J, Kim YY, Kang B. Controlling Fluorination Density of Soluble Polyimide Gate Dielectrics and its Influence on Organic Crystal Growth and Device Operational Stability. ACS Appl Mater Interfaces 2024. [PMID: 38669100 DOI: 10.1021/acsami.4c01767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/28/2024]
Abstract
Fluorinated polyimides (PIs) are among the most promising candidates for gate dielectric materials in organic electronic devices because of their solution processability and outstanding chemical, mechanical, and thermal stabilities. Additionally, fluorine (F) substitution improves the electrical properties of PI thin films, such as enhanced dielectric properties and reduced surface trap densities. However, the relationship between the fluorination density of PIs and crystal growth modes of vacuum-deposited conjugated molecules on PI thin films, which is directly related to the lateral charge transport along the PI-organic semiconductor interface, has not been systematically studied. Herein, five different soluble PIs with different F densities were synthesized, and the correlation between fluorination and thin-film properties was systematically investigated. Not only were their dielectric properties modulated, but the growth modes of the organic molecules deposited on the PI thin films also changed with increasing surface F density. This phenomenon was observed by both surface and crystallographic analyses, which resulted in extremely high operational stability of field-effect transistors and the successful fabrication of organic complementary circuits. We believe that the correlation between PI backbone fluorination and its thin-film properties will provide practical insights into the material design based on controlled molecular directed surface assembly on fluorinated polymer dielectrics.
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Affiliation(s)
- Tae Woong Yoon
- SKKU Advanced Institute of Nanotechnology (SAINT) and Department of Nano Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Hyunjin Park
- Chemical Materials Solutions Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
| | - Jaehoon Lee
- SKKU Advanced Institute of Nanotechnology (SAINT) and Department of Nano Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Sungmi Yoo
- Advanced Functional Polymers Center, KRICT, Daejeon 34114, Republic of Korea
| | - Yun Ho Kim
- Advanced Functional Polymers Center, KRICT, Daejeon 34114, Republic of Korea
| | - Byung Mook Weon
- School of Advanced Materials Science and Engineering and SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Junki Kim
- SKKU Advanced Institute of Nanotechnology (SAINT) and Department of Nano Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
- Department of Nano Engineering, SKKU, Suwon 16419, Republic of Korea
| | - Young Yong Kim
- Beamline Division, Pohang Accelerator Laboratory, POSTECH, Pohang 37673, Republic of Korea
| | - Boseok Kang
- SKKU Advanced Institute of Nanotechnology (SAINT) and Department of Nano Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
- Department of Nano Engineering, SKKU, Suwon 16419, Republic of Korea
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Park J, Kim S, Hwang J, Choi JH, So Y, Park S, Ko MJ, Won JC, Suk J, Wu M, Kim YH. Highly Macroporous Polyimide with Chemical Versatility Prepared from Poly(amic acid) Salt-Stabilized High Internal Phase Emulsion Template. ACS Omega 2024; 9:15222-15231. [PMID: 38585077 PMCID: PMC10993319 DOI: 10.1021/acsomega.3c09640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 02/28/2024] [Accepted: 03/06/2024] [Indexed: 04/09/2024]
Abstract
Macroporous polymers have gained significant attention due to their unique mass transport and size-selective properties. In this study, we focused on Polyimide (PI), a high-performance polymer, as an ideal candidate for macroporous structures. Despite various attempts to create macroporous PI (Macro PI) using emulsion templates, challenges remained, including limited chemical diversity and poor control over pore size and porosity. To address these issues, we systematically investigated the role of poly(amic acid) salt (PAAS) polymers as macrosurfactants and matrices. By designing 12 different PAAS polymers with diverse chemical structures, we achieved stable high internal phase emulsions (HIPEs) with >80 vol % internal volume. The resulting Macro PIs exhibited exceptional porosity (>99 vol %) after thermal imidization. We explored the structure-property relationships of these Macro PIs, emphasizing the importance of controlling pore size distribution. Furthermore, our study demonstrated the utility of these Macro PIs as separators in Li-metal batteries, providing stable charging-discharging cycles. Our findings not only enhance the understanding of emulsion-based macroporous polymers but also pave the way for their applications in advanced energy storage systems and beyond.
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Affiliation(s)
- Jongmin Park
- Advanced
Functional Polymers Center, Korea Research
Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
| | - Sunkyu Kim
- Advanced
Functional Polymers Center, Korea Research
Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
- Department
of Chemical Engineering, Hanyang University, Seoul 04763, Republic of Korea
| | - Jeonguk Hwang
- Advanced
Functional Polymers Center, Korea Research
Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
| | - Jun Ha Choi
- Advanced
Functional Polymers Center, Korea Research
Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
- Department
of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic
of Korea
| | - Yujin So
- Advanced
Functional Polymers Center, Korea Research
Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
| | - Sarang Park
- Advanced
Functional Polymers Center, Korea Research
Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
| | - Min Jae Ko
- Department
of Chemical Engineering, Hanyang University, Seoul 04763, Republic of Korea
| | - Jong Chan Won
- Advanced
Functional Polymers Center, Korea Research
Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
- KRICT
School, University of Science and Technology
(UST), Daejeon 34113, Republic of Korea
| | - Jungdon Suk
- KRICT
School, University of Science and Technology
(UST), Daejeon 34113, Republic of Korea
- Advanced
Energy Materials Research Center, Korea
Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
| | - Mihye Wu
- Advanced
Energy Materials Research Center, Korea
Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
| | - Yun Ho Kim
- Advanced
Functional Polymers Center, Korea Research
Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
- KRICT
School, University of Science and Technology
(UST), Daejeon 34113, Republic of Korea
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Lee D, Lee D, Lee S, Park HJ, Han KN, Choi SJ, Kim YH, Kim J. Electric Field-Assisted Agglomeration of Trace Nanoparticle Impurities for Ultrahigh Purity Chemicals. JACS Au 2024; 4:1031-1038. [PMID: 38559726 PMCID: PMC10976593 DOI: 10.1021/jacsau.3c00765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 01/08/2024] [Accepted: 01/19/2024] [Indexed: 04/04/2024]
Abstract
With the advancement of semiconductor manufacturing technology, the effects of trace impurities in industrial chemicals have grown significantly. In industrial processes, conventional purification methods, such as filtration and distillation, have reached their limits for removing nanoparticles from aqueous and acidic solutions. Especially, silicon and silicate are two fundamental byproducts in semiconductor fabrication processes. Assembly and subsequent removal of these materials at the nanoparticle level have been confronted with significant challenges. Therefore, it is imperative to develop technologies to effectively control and remove these impurities for next-generation manufacturing processes. In this study, we explored the use of electric field-assisted assembly to agglomerate silicate and silicon nanoparticles in industry-standard aqueous and acidic solutions. By applying an alternating current electric field, we induced dipole moments in the nanoparticles, which led to their agglomeration. Notably, nanoparticles smaller than 4 nm grew into significantly larger ones, with submicroparticle sizes exceeding 87 nm for silicate and reaching 130 nm for silicon. Through systematic analysis of the size distribution changes, we identified optimal agglomeration times of 10 min for silicate and 20 min for silicon, revealing effective agglomeration within the frequency range of 1-1000 kHz. The agglomerated particles were stable for 5 days. Our electric field-assisted approach to obtain assembled nanoparticles that can be subsequently removed by conventional purification processes holds promise for enhancing future microfabrication processes, such as semiconductor manufacturing, potentially improving the manufacturing yield and uniformity by reducing the number of trace particles that can act as defective sites.
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Affiliation(s)
- Dongryul Lee
- Department
of Chemical and Biological Engineering, Korea University, Seoul 02841, South Korea
| | - Donggyu Lee
- Department
of Chemical and Biological Engineering, Seoul National University, Seoul 08826, South Korea
| | - Sungjune Lee
- Material
Technology Team, Samsung Electronics, Hwaseong-si, Gyeonggi-do 18448, South Korea
| | - Hee Jeong Park
- Material
Technology Team, Samsung Electronics, Hwaseong-si, Gyeonggi-do 18448, South Korea
| | - Kuk Nam Han
- Material
Technology Team, Samsung Electronics, Hwaseong-si, Gyeonggi-do 18448, South Korea
| | - Sam-Jong Choi
- Material
Technology Team, Samsung Electronics, Hwaseong-si, Gyeonggi-do 18448, South Korea
| | - Yun Ho Kim
- Material
Technology Team, Samsung Electronics, Hwaseong-si, Gyeonggi-do 18448, South Korea
| | - Jihyun Kim
- Department
of Chemical and Biological Engineering, Seoul National University, Seoul 08826, South Korea
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Park H, Choi H, Kim J, Yoo S, Mun HJ, Shin TJ, Won JC, Kim HY, Kim YH. Density Functional Theory-Based Approach For Dielectric Constant Estimation of Soluble Polyimide Insulators. J Phys Chem B 2024. [PMID: 38422507 DOI: 10.1021/acs.jpcb.3c07296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Evaluation of the insulating properties of polymers, such as the dielectric constant and dissipation factor, is crucial in electronic devices, including field-effect transistors and wireless communication applications. This study applies density functional theory (DFT) to predict the dielectric constant of soluble polyimides (SPIs). Various SPIs containing trifluoromethyl groups in the backbone with different pendant types, numbers, and symmetries are successfully synthesized, and their dielectric constants are evaluated and compared with the DFT-estimated values. Two types of DFT-optimized SPIs, single-chain and stacked-chain models, are used to describe the local geometries of the SPIs. In addition, to reveal the relationship between the molecular structure and dielectric constant, further investigations are conducted by considering the dielectric constant of composing ionic and electronic components. The DFT-estimated static dielectric constant of the single-chain model accurately reproduces the corresponding experimental value with at least 80% accuracy. Our approach provides a rational and accelerated strategy to evaluate polymer insulators for electronic devices based on cost-effective DFT calculations.
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Affiliation(s)
- Hyunjin Park
- Chemical Materials Solutions Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
| | - Hyuk Choi
- Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Jongseok Kim
- Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Sungmi Yoo
- Chemical Materials Solutions Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
| | - Hyun Jung Mun
- UNIST Central Research Facilities & School of Natural Science, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Tae Joo Shin
- UNIST Central Research Facilities & School of Natural Science, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Jong Chan Won
- Advanced Functional Polymers Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
- KRICT School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - Hyun You Kim
- Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Yun Ho Kim
- Advanced Functional Polymers Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
- KRICT School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
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5
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Park SS, Kang H, Kim YH, Kim JH. Different tumor growth pattern of clinically nonfunctioning pituitary neuroendocrine tumor according to sex and age: a longitudinal study. J Endocrinol Invest 2024:10.1007/s40618-024-02303-8. [PMID: 38310625 DOI: 10.1007/s40618-024-02303-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 01/02/2024] [Indexed: 02/06/2024]
Abstract
PURPOSE Asymptomatic patients with clinically non-functional pituitary neuroendocrine tumors (CNF-PitNETs) are usually followed up. However, the natural course of CNF-PitNETs according to sex and age remains unclear. Therefore, this study assessed growth patterns of CNF-PitNETs according to sex and age. METHODS In this longitudinal study, we enrolled 431 consecutive patients with CNF-PitNETs who were treated at Seoul National University Hospital from 1997 to 2021. The patients underwent hormone function testing and visual field testing, and were subsequently followed up with imaging over a median duration of 66 months. RESULTS The median age of the patients was 53.0 years, and 37.1% (n = 160) were men. Men were older and harbored more macroadenomas than women. The annual tumor volume change was higher in men than in women (0.21 vs. 0.04 cm3/year, P < 0.001). The estimated cutoff value of age for significant tumor growth was 51 years. In men, the annual tumor volume change was similar across all age groups. In women, those aged ≤ 50 years showed significantly lower annual tumor volume change than those aged > 50 years (0.01, 0.11, and 0.17 cm3/year, P = 0.001). When comparing sexes within the same age group, the annual tumor volume changes was significantly lower for women than for men, only in patients aged ≤ 50 years (0.01 vs. 0.15 cm3/year, P < 0.001). CONCLUSIONS Among patients with CNF-PitNET, tumor growth was slower in women aged ≤ 50 years than in men and women aged > 50. These findings may guide the customization of surveillance strategies for CNF-PitNETs according to sex and age.
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Affiliation(s)
- S S Park
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Dae-hak ro, Seoul, 03080, Korea
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
- Pituitary Center, Seoul National University Hospital, Seoul, Korea
| | - H Kang
- Pituitary Center, Seoul National University Hospital, Seoul, Korea
- Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, 101 Dae-hak ro, Seoul, 03080, Korea
| | - Y H Kim
- Pituitary Center, Seoul National University Hospital, Seoul, Korea.
- Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, 101 Dae-hak ro, Seoul, 03080, Korea.
| | - J H Kim
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Dae-hak ro, Seoul, 03080, Korea.
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea.
- Pituitary Center, Seoul National University Hospital, Seoul, Korea.
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6
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Pak A, Zylstra AB, Baker KL, Casey DT, Dewald E, Divol L, Hohenberger M, Moore AS, Ralph JE, Schlossberg DJ, Tommasini R, Aybar N, Bachmann B, Bionta RM, Fittinghoff D, Gatu Johnson M, Geppert Kleinrath H, Geppert Kleinrath V, Hahn KD, Rubery MS, Landen OL, Moody JD, Aghaian L, Allen A, Baxamusa SH, Bhandarkar SD, Biener J, Birge NW, Braun T, Briggs TM, Choate C, Clark DS, Crippen JW, Danly C, Döppner T, Durocher M, Erickson M, Fehrenbach T, Freeman M, Havre M, Hayes S, Hilsabeck T, Holder JP, Humbird KD, Hurricane OA, Izumi N, Kerr SM, Khan SF, Kim YH, Kong C, Jeet J, Kozioziemski B, Kritcher AL, Lamb KM, Lemos NC, MacGowan BJ, Mackinnon AJ, MacPhee AG, Marley EV, Meaney K, Millot M, Di Nicola JMG, Nikroo A, Nora R, Ratledge M, Ross JS, Shin SJ, Smalyuk VA, Stadermann M, Stoupin S, Suratwala T, Trosseille C, Van Wonterghem B, Weber CR, Wild C, Wilde C, Wooddy PT, Woodworth BN, Young CV. Observations and properties of the first laboratory fusion experiment to exceed a target gain of unity. Phys Rev E 2024; 109:025203. [PMID: 38491694 DOI: 10.1103/physreve.109.025203] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 01/18/2024] [Indexed: 03/18/2024]
Abstract
An indirect-drive inertial fusion experiment on the National Ignition Facility was driven using 2.05 MJ of laser light at a wavelength of 351 nm and produced 3.1±0.16 MJ of total fusion yield, producing a target gain G=1.5±0.1 exceeding unity for the first time in a laboratory experiment [Phys. Rev. E 109, 025204 (2024)10.1103/PhysRevE.109.025204]. Herein we describe the experimental evidence for the increased drive on the capsule using additional laser energy and control over known degradation mechanisms, which are critical to achieving high performance. Improved fuel compression relative to previous megajoule-yield experiments is observed. Novel signatures of the ignition and burn propagation to high yield can now be studied in the laboratory for the first time.
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Affiliation(s)
- A Pak
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - A B Zylstra
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - K L Baker
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - D T Casey
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - E Dewald
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - L Divol
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - M Hohenberger
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - A S Moore
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - J E Ralph
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - D J Schlossberg
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - R Tommasini
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - N Aybar
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - B Bachmann
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - R M Bionta
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - D Fittinghoff
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - M Gatu Johnson
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - H Geppert Kleinrath
- Los Alamos National Laboratory, Mail Stop F663, Los Alamos, New Mexico 87545, USA
| | - V Geppert Kleinrath
- Los Alamos National Laboratory, Mail Stop F663, Los Alamos, New Mexico 87545, USA
| | - K D Hahn
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - M S Rubery
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - O L Landen
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - J D Moody
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - L Aghaian
- General Atomics, San Diego, California 92186, USA
| | - A Allen
- General Atomics, San Diego, California 92186, USA
| | - S H Baxamusa
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - S D Bhandarkar
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - J Biener
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - N W Birge
- Los Alamos National Laboratory, Mail Stop F663, Los Alamos, New Mexico 87545, USA
| | - T Braun
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - T M Briggs
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - C Choate
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - D S Clark
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - J W Crippen
- General Atomics, San Diego, California 92186, USA
| | - C Danly
- Los Alamos National Laboratory, Mail Stop F663, Los Alamos, New Mexico 87545, USA
| | - T Döppner
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - M Durocher
- Los Alamos National Laboratory, Mail Stop F663, Los Alamos, New Mexico 87545, USA
| | - M Erickson
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | | | - M Freeman
- Los Alamos National Laboratory, Mail Stop F663, Los Alamos, New Mexico 87545, USA
| | - M Havre
- General Atomics, San Diego, California 92186, USA
| | - S Hayes
- General Atomics, San Diego, California 92186, USA
| | - T Hilsabeck
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - J P Holder
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - K D Humbird
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - O A Hurricane
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - N Izumi
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - S M Kerr
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - S F Khan
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - Y H Kim
- Los Alamos National Laboratory, Mail Stop F663, Los Alamos, New Mexico 87545, USA
| | - C Kong
- General Atomics, San Diego, California 92186, USA
| | - J Jeet
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - B Kozioziemski
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - A L Kritcher
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - K M Lamb
- Los Alamos National Laboratory, Mail Stop F663, Los Alamos, New Mexico 87545, USA
| | - N C Lemos
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - B J MacGowan
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - A J Mackinnon
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - A G MacPhee
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - E V Marley
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - K Meaney
- Los Alamos National Laboratory, Mail Stop F663, Los Alamos, New Mexico 87545, USA
| | - M Millot
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - J-M G Di Nicola
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - A Nikroo
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - R Nora
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - M Ratledge
- General Atomics, San Diego, California 92186, USA
| | - J S Ross
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - S J Shin
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - V A Smalyuk
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - M Stadermann
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - S Stoupin
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - T Suratwala
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - C Trosseille
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - B Van Wonterghem
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - C R Weber
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - C Wild
- Diamond Materials GmbH, 79108 Freiburg, Germany
| | - C Wilde
- Los Alamos National Laboratory, Mail Stop F663, Los Alamos, New Mexico 87545, USA
| | - P T Wooddy
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - B N Woodworth
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
| | - C V Young
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
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Nam S, Kim Y, Kim SH, Son HB, Han DY, Kim YH, Cho JH, Park J, Park S. Tailoring Three-Dimensional Cross-Linked Networks Based on Water-Soluble Polymeric Materials for Stable Silicon Anode. ACS Appl Mater Interfaces 2024; 16:594-604. [PMID: 38114065 DOI: 10.1021/acsami.3c13896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
For stable battery operation of silicon (Si)-based anodes, utilizing cross-linked three-dimensional (3D) network binders has emerged as an effective strategy to mitigate significant volume fluctuations of Si particles. In the design of cross-linked network binders, careful selection of appropriate cross-linking agents is crucial to maintaining a balance between the robustness and functionality of the network. Herein, we strategically design and optimize a 3D cross-linked network binder through a comprehensive analysis of cross-linking agents. The proposed network is composed of poly(vinyl alcohol) grafted poly(acrylic acid) (PVA-g-PAA, PVgA) and aromatic diamines. PVgA is chosen as the polymer backbone owing to its high flexibility and facile synthesis using an ecofriendly water solvent. Subsequently, an aromatic diamine is employed as a cross-linker to construct a robust amide network that features a resonance-stabilized high modulus and enhanced adhesion. Comparative investigations of three cross-linkers, 2,2'-bis(trifluoromethyl)benzidine, 3,3'-oxidianiline, and 4,4'-oxybis[3-(trifluoromethyl)aniline] (TFODA), highlight the roles of the trifluoromethyl group (-CF3) and the ether linkage. Consequently, PVgA cross-linked with TFODA (PVgA-TFODA), featuring both -CF3 and -O-, establishes a well-balanced 3D network characterized by heightened elasticity and improved binding forces. The optimized Si and SiOx/graphite composite electrodes with the PVgA-TFODA binder demonstrate impressive structural stability and stable cycling. This study offers a novel perspective on designing cross-linked network binders, showcasing the benefits of a multidimensional approach considering chemical and physical interactions.
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Affiliation(s)
- Seoha Nam
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-gu, Pohang 37673, Republic of Korea
| | - Yeongseok Kim
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-gu, Pohang 37673, Republic of Korea
| | - So Hyeon Kim
- Advanced Functional Polymers Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Hye Bin Son
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-gu, Pohang 37673, Republic of Korea
| | - Dong-Yeob Han
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-gu, Pohang 37673, Republic of Korea
| | - Yun Ho Kim
- Advanced Functional Polymers Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
- Advanced Materials and Chemical Engineering, KRICT School, University of Science and Technology, 217 Gajeong-ro, Yuseong-gu, Daejeon 34114, Republic of Korea
| | - Jeong Ho Cho
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Jongmin Park
- Advanced Functional Polymers Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
| | - Soojin Park
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-gu, Pohang 37673, Republic of Korea
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8
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Zanon I, Clément E, Goasduff A, Menéndez J, Miyagi T, Assié M, Ciemała M, Flavigny F, Lemasson A, Matta A, Ramos D, Rejmund M, Achouri L, Ackermann D, Barrientos D, Beaumel D, Benzoni G, Boston AJ, Boston HC, Bottoni S, Bracco A, Brugnara D, de France G, de Sereville N, Delaunay F, Desesquelles P, Didierjean F, Domingo-Prato C, Dudouet J, Eberth J, Fernández D, Fougères C, Gadea A, Galtarossa F, Girard-Alcindor V, Gonzales V, Gottardo A, Hammache F, Harkness-Brennan LJ, Hess H, Judson DS, Jungclaus A, Kaşkaş A, Kim YH, Kuşoğlu A, Labiche M, Leblond S, Lenain C, Lenzi SM, Leoni S, Li H, Ljungvall J, Lois-Fuentes J, Lopez-Martens A, Maj A, Menegazzo R, Mengoni D, Michelagnoli C, Million B, Napoli DR, Nyberg J, Pasqualato G, Podolyak Z, Pullia A, Quintana B, Recchia F, Regueira-Castro D, Reiter P, Rezynkina K, Rojo JS, Salsac MD, Sanchis E, Şenyiğit M, Siciliano M, Sohler D, Stezowski O, Theisen C, Utepov A, Valiente-Dobón JJ, Verney D, Zielinska M. High-Precision Spectroscopy of ^{20}O Benchmarking Ab Initio Calculations in Light Nuclei. Phys Rev Lett 2023; 131:262501. [PMID: 38215380 DOI: 10.1103/physrevlett.131.262501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 09/18/2023] [Accepted: 11/21/2023] [Indexed: 01/14/2024]
Abstract
The excited states of unstable ^{20}O were investigated via γ-ray spectroscopy following the ^{19}O(d,p)^{20}O reaction at 8 AMeV. By exploiting the Doppler shift attenuation method, the lifetimes of the 2_{2}^{+} and 3_{1}^{+} states were firmly established. From the γ-ray branching and E2/M1 mixing ratios for transitions deexciting the 2_{2}^{+} and 3_{1}^{+} states, the B(E2) and B(M1) were determined. Various chiral effective field theory Hamiltonians, describing the nuclear properties beyond ground states, along with a standard USDB interaction, were compared with the experimentally obtained data. Such a comparison for a large set of γ-ray transition probabilities with the valence space in medium similarity renormalization group ab initio calculations was performed for the first time in a nucleus far from stability. It was shown that the ab initio approaches using chiral effective field theory forces are challenged by detailed high-precision spectroscopic properties of nuclei. The reduced transition probabilities were found to be a very constraining test of the performance of the ab initio models.
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Affiliation(s)
- I Zanon
- INFN Laboratori Nazionali di Legnaro, Legnaro, Italy
- Dipartimento di Fisica e Scienze della Terra, Università di Ferrara, Ferrara, Italy
| | - E Clément
- Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DRF-CNRS/IN2P3, Caen, France
| | - A Goasduff
- INFN Laboratori Nazionali di Legnaro, Legnaro, Italy
| | - J Menéndez
- Department of Quantum Physics and Astrophysics and Institute of Cosmos Sciences, University of Barcelona, Spain
| | - T Miyagi
- Department of Physics, Technische Universität Darmstadt, Darmstadt, Germany
- ExtreMe Matter Institute, GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, Germany
- Max-Planck-Institut für Kernphysik, Heidelberg, Germany
| | - M Assié
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | | | - F Flavigny
- Université de Caen Normandie, ENSICAEN, CNRS/IN2P3, LPC Caen UMR6534, F-14000 Caen, France
| | - A Lemasson
- Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DRF-CNRS/IN2P3, Caen, France
| | - A Matta
- Université de Caen Normandie, ENSICAEN, CNRS/IN2P3, LPC Caen UMR6534, F-14000 Caen, France
| | - D Ramos
- Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DRF-CNRS/IN2P3, Caen, France
| | - M Rejmund
- Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DRF-CNRS/IN2P3, Caen, France
| | - L Achouri
- Université de Caen Normandie, ENSICAEN, CNRS/IN2P3, LPC Caen UMR6534, F-14000 Caen, France
| | - D Ackermann
- Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DRF-CNRS/IN2P3, Caen, France
| | | | - D Beaumel
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - G Benzoni
- INFN Sezione di Milano, I-20133 Milano, Italy
| | - A J Boston
- Oliver Lodge Laboratory, The University of Liverpool, Liverpool, United Kingdom
| | - H C Boston
- Oliver Lodge Laboratory, The University of Liverpool, Liverpool, United Kingdom
| | - S Bottoni
- INFN Sezione di Milano, I-20133 Milano, Italy
- Dipartimento di Fisica, Università di Milano, Milano, Italy
| | - A Bracco
- INFN Sezione di Milano, I-20133 Milano, Italy
- Dipartimento di Fisica, Università di Milano, Milano, Italy
| | - D Brugnara
- INFN Laboratori Nazionali di Legnaro, Legnaro, Italy
- Dipartimento di Fisica, Università di Padova, Padova, Italy
| | - G de France
- Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DRF-CNRS/IN2P3, Caen, France
| | - N de Sereville
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - F Delaunay
- Université de Caen Normandie, ENSICAEN, CNRS/IN2P3, LPC Caen UMR6534, F-14000 Caen, France
| | - P Desesquelles
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - F Didierjean
- Université de Strasbourg, IPHC, Strasbourg, France
| | - C Domingo-Prato
- Instituto de Fisica Corpuscolar, CSIC-Universidad de Valencia, E-46071 Valencia, Spain
| | - J Dudouet
- Université de Lyon, Université Lyon-1, CNRS/IN2P3, UMR5822, IP2I, F-69622 Villeurbanne Cedex, France
| | - J Eberth
- Institut für Kernphysik, Universität zu Köln, Zülpicher Strasse 77, D-50937 Köln, Germany
| | - D Fernández
- IGFAE and Department de Física de Partículas, Universidade of Santiago de Compostela, Santiago de Compostela, Spain
| | - C Fougères
- Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DRF-CNRS/IN2P3, Caen, France
| | - A Gadea
- Instituto de Fisica Corpuscolar, CSIC-Universidad de Valencia, E-46071 Valencia, Spain
| | - F Galtarossa
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - V Girard-Alcindor
- Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DRF-CNRS/IN2P3, Caen, France
| | - V Gonzales
- Departamento de Ingeniería Electrónica, Universitat de Valencia, Burjassot, Valencia, Spain
| | - A Gottardo
- INFN Laboratori Nazionali di Legnaro, Legnaro, Italy
| | - F Hammache
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | | | - H Hess
- Institut für Kernphysik, Universität zu Köln, Zülpicher Strasse 77, D-50937 Köln, Germany
| | - D S Judson
- Oliver Lodge Laboratory, The University of Liverpool, Liverpool, United Kingdom
| | - A Jungclaus
- Instituto de Estructura de la Materia, CSIC, Madrid, E-28006 Madrid, Spain
| | - A Kaşkaş
- Department of Physics, Faculty of Science, Ankara University, 06100 Besevler - Ankara, Turkey
| | - Y H Kim
- Institue Laue-Langevin, Grenoble, France
| | - A Kuşoğlu
- Department of Physics, Faculty of Science, Istanbul University, Vezneciler/Fatih, Istanbul, Turkey
| | - M Labiche
- STFC Daresbury Laboratory, Daresbury, Warrington, WA4 4AD, United Kingdom
| | - S Leblond
- Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DRF-CNRS/IN2P3, Caen, France
| | - C Lenain
- Université de Caen Normandie, ENSICAEN, CNRS/IN2P3, LPC Caen UMR6534, F-14000 Caen, France
| | - S M Lenzi
- INFN, Sezione di Padova, I-35131 Padova, Italy
| | - S Leoni
- INFN Sezione di Milano, I-20133 Milano, Italy
| | - H Li
- Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DRF-CNRS/IN2P3, Caen, France
| | - J Ljungvall
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - J Lois-Fuentes
- IGFAE and Department de Física de Partículas, Universidade of Santiago de Compostela, Santiago de Compostela, Spain
| | - A Lopez-Martens
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - A Maj
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, 31-342 Kraków, Poland
| | - R Menegazzo
- INFN, Sezione di Padova, I-35131 Padova, Italy
| | - D Mengoni
- Dipartimento di Fisica, Università di Padova, Padova, Italy
- INFN, Sezione di Padova, I-35131 Padova, Italy
| | - C Michelagnoli
- Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DRF-CNRS/IN2P3, Caen, France
- Institue Laue-Langevin, Grenoble, France
| | - B Million
- INFN Sezione di Milano, I-20133 Milano, Italy
| | - D R Napoli
- INFN Laboratori Nazionali di Legnaro, Legnaro, Italy
| | - J Nyberg
- Department of Physics and Astronomy, Uppsala University, SE-75120 Uppsala, Sweden
| | - G Pasqualato
- Dipartimento di Fisica, Università di Padova, Padova, Italy
- INFN, Sezione di Padova, I-35131 Padova, Italy
| | - Zs Podolyak
- Department of Physics, University of Surrey, Guildford, GU2 7XH, United Kingdom
| | - A Pullia
- INFN Sezione di Milano, I-20133 Milano, Italy
| | - B Quintana
- Laboratorio de Radiaciones Ionizantes, Departamento de Física Fundamental, Universidad de Salamanca, E-37008 Salamanca, Spain
| | - F Recchia
- Dipartimento di Fisica, Università di Padova, Padova, Italy
- INFN, Sezione di Padova, I-35131 Padova, Italy
| | - D Regueira-Castro
- IGFAE and Department de Física de Partículas, Universidade of Santiago de Compostela, Santiago de Compostela, Spain
| | - P Reiter
- Institut für Kernphysik, Universität zu Köln, Zülpicher Strasse 77, D-50937 Köln, Germany
| | - K Rezynkina
- Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France
| | - J S Rojo
- Department of Physics, University of York, York, United Kingdom
| | - M D Salsac
- Irfu, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - E Sanchis
- Departamento de Ingeniería Electrónica, Universitat de Valencia, Burjassot, Valencia, Spain
| | - M Şenyiğit
- Department of Physics, Faculty of Science, Ankara University, 06100 Besevler - Ankara, Turkey
| | - M Siciliano
- Irfu, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
- Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - D Sohler
- Institute for Nuclear Research, Atomki, 4001 Debrecen, Hungary
| | - O Stezowski
- Université de Lyon, Université Lyon-1, CNRS/IN2P3, UMR5822, IP2I, F-69622 Villeurbanne Cedex, France
| | - Ch Theisen
- Irfu, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - A Utepov
- Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DRF-CNRS/IN2P3, Caen, France
- Université de Caen Normandie, ENSICAEN, CNRS/IN2P3, LPC Caen UMR6534, F-14000 Caen, France
| | | | - D Verney
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - M Zielinska
- Irfu, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
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9
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Adhikari G, Carlin N, Choi JJ, Choi S, Ezeribe AC, França LE, Ha C, Hahn IS, Hollick SJ, Jeon EJ, Jo JH, Joo HW, Kang WG, Kauer M, Kim BH, Kim HJ, Kim J, Kim KW, Kim SH, Kim SK, Kim WK, Kim YD, Kim YH, Ko YJ, Lee DH, Lee EK, Lee H, Lee HS, Lee HY, Lee IS, Lee J, Lee JY, Lee MH, Lee SH, Lee SM, Lee YJ, Leonard DS, Luan NT, Manzato BB, Maruyama RH, Neal RJ, Nikkel JA, Olsen SL, Park BJ, Park HK, Park HS, Park KS, Park SD, Pitta RLC, Prihtiadi H, Ra SJ, Rott C, Shin KA, Cavalcante DFFS, Scarff A, Spooner NJC, Thompson WG, Yang L, Yu GH. Search for Boosted Dark Matter in COSINE-100. Phys Rev Lett 2023; 131:201802. [PMID: 38039466 DOI: 10.1103/physrevlett.131.201802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 10/30/2023] [Indexed: 12/03/2023]
Abstract
We search for energetic electron recoil signals induced by boosted dark matter (BDM) from the galactic center using the COSINE-100 array of NaI(Tl) crystal detectors at the Yangyang Underground Laboratory. The signal would be an excess of events with energies above 4 MeV over the well-understood background. Because no excess of events are observed in a 97.7 kg·yr exposure, we set limits on BDM interactions under a variety of hypotheses. Notably, we explored the dark photon parameter space, leading to competitive limits compared to direct dark photon search experiments, particularly for dark photon masses below 4 MeV and considering the invisible decay mode. Furthermore, by comparing our results with a previous BDM search conducted by the Super-Kamionkande experiment, we found that the COSINE-100 detector has advantages in searching for low-mass dark matter. This analysis demonstrates the potential of the COSINE-100 detector to search for MeV electron recoil signals produced by the dark sector particle interactions.
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Affiliation(s)
- G Adhikari
- Department of Physics and Wright Laboratory, Yale University, New Haven, Connecticut 06520, USA
| | - N Carlin
- Physics Institute, University of São Paulo, 05508-090, São Paulo, Brazil
| | - J J Choi
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Republic of Korea
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - S Choi
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Republic of Korea
| | - A C Ezeribe
- Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom
| | - L E França
- Physics Institute, University of São Paulo, 05508-090, São Paulo, Brazil
| | - C Ha
- Department of Physics, Chung-Ang University, Seoul 06973, Republic of Korea
| | - I S Hahn
- Department of Science Education, Ewha Womans University, Seoul 03760, Republic of Korea
- Center for Exotic Nuclear Studies, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
- IBS School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - S J Hollick
- Department of Physics and Wright Laboratory, Yale University, New Haven, Connecticut 06520, USA
| | - E J Jeon
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - J H Jo
- Department of Physics and Wright Laboratory, Yale University, New Haven, Connecticut 06520, USA
| | - H W Joo
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Republic of Korea
| | - W G Kang
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - M Kauer
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - B H Kim
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - H J Kim
- Department of Physics, Kyungpook National University, Daegu 41566, Republic of Korea
| | - J Kim
- Department of Physics, Chung-Ang University, Seoul 06973, Republic of Korea
| | - K W Kim
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - S H Kim
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - S K Kim
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Republic of Korea
| | - W K Kim
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
- IBS School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - Y D Kim
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
- IBS School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
- Department of Physics, Sejong University, Seoul 05006, Republic of Korea
| | - Y H Kim
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
- IBS School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
- Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea
| | - Y J Ko
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - D H Lee
- Department of Physics, Kyungpook National University, Daegu 41566, Republic of Korea
| | - E K Lee
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - H Lee
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
- IBS School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - H S Lee
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
- IBS School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - H Y Lee
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - I S Lee
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - J Lee
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - J Y Lee
- Department of Physics, Kyungpook National University, Daegu 41566, Republic of Korea
| | - M H Lee
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
- IBS School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - S H Lee
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
- IBS School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - S M Lee
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Republic of Korea
| | - Y J Lee
- Department of Physics, Chung-Ang University, Seoul 06973, Republic of Korea
| | - D S Leonard
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - N T Luan
- Department of Physics, Kyungpook National University, Daegu 41566, Republic of Korea
| | - B B Manzato
- Physics Institute, University of São Paulo, 05508-090, São Paulo, Brazil
| | - R H Maruyama
- Department of Physics and Wright Laboratory, Yale University, New Haven, Connecticut 06520, USA
| | - R J Neal
- Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom
| | - J A Nikkel
- Department of Physics and Wright Laboratory, Yale University, New Haven, Connecticut 06520, USA
| | - S L Olsen
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - B J Park
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
- IBS School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - H K Park
- Department of Accelerator Science, Korea University, Sejong 30019, Republic of Korea
| | - H S Park
- Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea
| | - K S Park
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - S D Park
- Department of Physics, Kyungpook National University, Daegu 41566, Republic of Korea
| | - R L C Pitta
- Physics Institute, University of São Paulo, 05508-090, São Paulo, Brazil
| | - H Prihtiadi
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - S J Ra
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - C Rott
- Department of Physics, Sungkyunkwan University, Suwon 16419, Republic of Korea
- Department of Physics and Astronomy, University of Utah, Salt Lake City, Utah 84112, USA
| | - K A Shin
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - D F F S Cavalcante
- Physics Institute, University of São Paulo, 05508-090, São Paulo, Brazil
| | - A Scarff
- Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom
| | - N J C Spooner
- Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom
| | - W G Thompson
- Department of Physics and Wright Laboratory, Yale University, New Haven, Connecticut 06520, USA
| | - L Yang
- Department of Physics, University of California San Diego, La Jolla, California 92093, USA
| | - G H Yu
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
- Department of Physics, Sungkyunkwan University, Suwon 16419, Republic of Korea
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10
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Kim YH, Kim YC. Development of metastatic lung adenocarcinoma in a twenty-year-old skin graft site on the scalp: A case report. Indian J Dermatol Venereol Leprol 2023; 0:1-2. [PMID: 38031680 DOI: 10.25259/ijdvl_518_2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 09/17/2023] [Indexed: 12/01/2023]
Affiliation(s)
- Y H Kim
- Department of Dermatology, Ajou University Hospital, World Cup-ro, Suwon, Korea
| | - Y C Kim
- Department of Dermatology, Ajou University Hospital, World Cup-ro, Suwon, Korea
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11
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Ree J, Ko KC, Kim YH, Shin HK. Excitation of NH Stretching Modes in Aromatic Molecules: o-Toluidine and α-Methylbenzylamine. J Phys Chem B 2023; 127:7276-7282. [PMID: 37566790 DOI: 10.1021/acs.jpcb.3c03968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/13/2023]
Abstract
Selectively excited o-toluidine and α-methylbenzylamine have been studied with quasi-classical trajectory procedures to determine the extent and timescales of intramolecular energy flow. The initial excitation is in the stretching mode of the para-CH bond, and its flow is initiated by interaction with an argon atom. Energy flow to the NH stretching mode is the dominant relaxation pathway, and its effectiveness is enhanced strongly by the methyl-NH interaction. Energy flow characteristics in both molecules are similar, but the flow is more effective in o-toluidine than in α-methylbenzylamine because the methyl group bonded to the benzene ring exerts stronger perturbation on the energy-flow pathway than the group bonded to the side chain. The relaxation of the initially excited CH completes on a timescale of several picoseconds, but the main part of energy flow to the NH occurs on a subpicosecond scale. In o-toluidine, carbon-carbon overtone modes lead to ring-CC bonds gaining and transporting more energy than high-frequency CH bonds, but they all gain far less energy than the NH stretching mode.
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Affiliation(s)
- J Ree
- Department of Chemistry Education, Chonnam National University, Gwangju 61186, Korea
| | - K C Ko
- Department of Chemistry Education, Chonnam National University, Gwangju 61186, Korea
| | - Y H Kim
- Department of Chemistry, Inha University, Incheon 22212, Korea
| | - H K Shin
- Department of Chemistry, University of Nevada, Reno, Nevada 89557, United States
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12
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Kim YH, Park MR, Kim SY, Kim MY, Kim KW, Sohn MH. Respiratory microbiome profiles are associated with distinct inflammatory phenotype and lung function in children with asthma. J Investig Allergol Clin Immunol 2023:0. [PMID: 37260034 DOI: 10.18176/jiaci.0918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023] Open
Abstract
BACKGROUND Respiratory microbiome studies have fostered our understanding of various phenotypes and endotypes of heterogeneous asthma. However, the relationship between the respiratory microbiome and clinical phenotypes in children with asthma remains unclear. We aimed to identify microbiome-driven clusters reflecting the clinical features of asthma and their dominant microbiotas in children with asthma. METHODS Induced sputum was collected from children with asthma, and microbiome profiles were generated via sequencing of the V3-V4 region of the 16S rRNA gene. Cluster analysis was performed using the partitioning around medoid clustering method. The dominant microbiota in each cluster was determined using the Linear Discriminant Effect Size analysis. Each cluster was analyzed for association among the dominant microbiota, clinical phenotype, and inflammatory cytokine. RESULTS Eighty-three children diagnosed with asthma were evaluated. Among four clusters reflecting the clinical characteristics of asthma, cluster 1, dominated by Haemophilus and Neisseria, demonstrated lower post-bronchodilator (BD) forced expiratory volume in 1 second (FEV1)/forced vital capacity (FVC) than that in the other clusters and more mixed granulocytic asthma. Neisseria negatively correlated with pre-BD and post-BD FEV1/FVC. Haemophilus and Neisseria positively correlated with programmed death-ligand (PD-L)1. CONCLUSION To our knowledge, this study is the first to analyze the relationship between an unbiased microbiome-driven cluster and clinical phenotype in children with asthma. The cluster dominated by Haemophilus and Neisseria showed fixed airflow obstruction and mixed granulocytic asthma, which correlated with PD-L1 levels. Thus, microbiome-driven unbiased clustering can help identify new asthma phenotypes related to endotypes in childhood asthma.
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Affiliation(s)
- Y H Kim
- Department of Pediatrics, Gangnam Severance Hospital, Seoul
- Institute of Allergy, Severance Biomedical Science Institute, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul
| | - M R Park
- Department of Pediatrics, Gangnam Severance Hospital, Seoul
- Institute of Allergy, Severance Biomedical Science Institute, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul
| | - S Y Kim
- Institute of Allergy, Severance Biomedical Science Institute, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul
- Department of Pediatrics, Severance Hospital, Seoul
| | - M Y Kim
- Institute of Allergy, Severance Biomedical Science Institute, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul
- Department of Pediatrics, Yongin Severance Hospital, Yongin, Korea
| | - K W Kim
- Institute of Allergy, Severance Biomedical Science Institute, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul
- Department of Pediatrics, Severance Hospital, Seoul
| | - M H Sohn
- Institute of Allergy, Severance Biomedical Science Institute, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul
- Department of Pediatrics, Severance Hospital, Seoul
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13
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Choi SK, Chung HS, Ko HS, Gen Y, Kim SM, Shin JE, Kil KC, Kim YH, Wie JH, Jo YS. Hemorrhagic morbidity in nulliparous patients with placenta previa without placenta accrete spectrum disorders. Niger J Clin Pract 2023; 26:432-437. [PMID: 37203107 DOI: 10.4103/njcp.njcp_456_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Background Placental adhesion spectrum (PAS) is a disease in which the trophoblast invades the myometrium, and is a well-known high-risk condition associated with placental previa. Aim The morbidity of nulliparous women with placenta previa without PAS disorders is unknown. Patients and Methods The data from nulliparous women who underwent cesarean delivery were collected retrospectively. The women were dichotomized into malpresentation (MP) and placenta previa groups. The placenta previa group was categorized into previa (PS) and low-lying (LL) groups. When the placenta covers the internal cervical os, it is called placenta previa, when the placenta is near the cervical os, it is called the low-lying placenta. Their maternal hemorrhagic morbidity and neonatal outcomes were analyzed and adjusted using multivariate analysis based on univariate analysis. Results A total of 1269 women were enrolled: 781 women in the MP group and 488 women in the PP-LL group. Regarding packed red blood cell transfusion, PP and LL had adjusted odds ratio (aOR) of 14.7 (95% confidence interval (CI): 6.6 - 32.5), and 11.3 (95% CI: 4.9 - 26) during admission, and 51.2 (95% CI: 22.1 - 122.7) and 10.3 (95% CI: 3.9 - 26.6) during operation, respectively. For intensive care unit admission, PS and LL had aOR of 15.9 (95% CI: 6.5 - 39.1) and 3.5 (95% CI: 1.1 - 10.9), respectively. No women had cesarean hysterectomy, major surgical complications, or maternal death. Conclusion Despite placenta previa without PAS disorders, maternal hemorrhagic morbidity was significantly increased. Thus, our results highlight the need for resources for those women with evidence of placenta previa including a low-lying placenta, even if those women do not meet PAS disorder criteria. In addition, placenta previa without PAS disorder was not associated with critical maternal complications.
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Affiliation(s)
- S K Choi
- Department of Obstetrics and Gynaecology, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - H S Chung
- Department of Anaesthesiology and Pain Medicine, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - H S Ko
- Department of Obstetrics and Gynaecology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Y Gen
- Department of Obstetrics and Gynaecology, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - S M Kim
- Department of Obstetrics and Gynaecology, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - J E Shin
- Department of Obstetrics and Gynaecology, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - K C Kil
- Department of Obstetrics and Gynaecology, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Y H Kim
- Department of Obstetrics and Gynaecology, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - J H Wie
- Department of Obstetrics and Gynaecology, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Y S Jo
- Department of Obstetrics and Gynaecology, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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14
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Kim S, Lee Y, Park J, So Y, Jung HT, Ko MJ, Won JC, Jeong S, Kim YH. Green and Facile Synthesis of Hybrid Composites with Ultralow Dielectric Properties from Water-Soluble Polyimide and Dual-Porous Silica Nanoparticles. ACS Appl Mater Interfaces 2023; 15:4408-4418. [PMID: 36520088 DOI: 10.1021/acsami.2c16197] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Here, we proposed an eco-friendly synthetic method for synthesizing hybrid composites with ultralow dielectric properties at high frequencies up to 28 GHz for true 5G communication from aqueous aromatic polyimide (PI) polymers and dual-porous silica nanoparticles (DPS). The "one-step" water-based emulsion template method was used to synthesize the macroporous silica nanoparticles (MPS). A substantially negative ζ potential was produced along the surface of MPS by the poly(vinylpyrrolidone)-based chemical functionalization, enabling excellent aqueous dispersion stability. The water-soluble poly(amic acid) (PAA), as a precursor to PI, was also "one-step" polymerized in an aqueous solution. The MPS were dispersed in a water-soluble PAA matrix to create the hybrid composite films using an entirely water-based approach. The compatibility between the PAA matrix and MPS was elucidated by investigating relatively diverse end-terminated PAAs (with either amine or carboxyl group). It was also discovered that, during a thermally activated imidization reaction, the MPS are in situ converted into the DPS with macro- and microporous structures (with a surface area of 1522.4 m2/g). The thermal, dielectric, mechanical, and morphological characteristics of each composite film were examined, while the amount of DPS in the PI matrix varied from 1 to 20 wt %. With the addition of 5 wt % DPS as an optimum condition, it showed ultralow dielectric properties, with the Dk and Df being 1.615 and 0.003 at a frequency of 28 GHz, respectively, and compatible mechanical properties, with the tensile strength and elastic modulus being 78.2 MPa and 0.32 GPa, respectively. These results can comprehensively satisfy various physical properties required as a substrate material for 5G communication devices.
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Affiliation(s)
- Sunkyu Kim
- Advanced Functional Polymers Center, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea
- Department of Chemical Engineering, Hanyang University, Seoul 04763, Korea
| | - Yeongje Lee
- Department of Advanced Materials Engineering for Information and Electronics, Integrated Education Institute for Frontier Science and Technology (BK21 Four), Kyung Hee University, Yongin-si 17104, Korea
| | - Jongmin Park
- Advanced Functional Polymers Center, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea
| | - Yujin So
- Advanced Functional Polymers Center, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Deajeon 34141, Korea
| | - Hee-Tae Jung
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Deajeon 34141, Korea
| | - Min Jae Ko
- Department of Chemical Engineering, Hanyang University, Seoul 04763, Korea
| | - Jong Chan Won
- Advanced Functional Polymers Center, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea
- KRICT School, University of Science and Technology, Daejeon 34113, Korea
| | - Sunho Jeong
- Department of Advanced Materials Engineering for Information and Electronics, Integrated Education Institute for Frontier Science and Technology (BK21 Four), Kyung Hee University, Yongin-si 17104, Korea
- Energy Storage Research Center, Korea Institute of Science and Technology, 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Yun Ho Kim
- Advanced Functional Polymers Center, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea
- KRICT School, University of Science and Technology, Daejeon 34113, Korea
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15
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Kim T, Min KI, Yang JS, Kim JW, Cho J, Kim YH, Lee JS, Kim YT, Kim KC, Kim JY, Na KJ, Lee JY, Ju YS. Relative infectivity of the SARS-CoV-2 Omicron variant in human alveolar cells. iScience 2022; 25:105571. [PMID: 36406862 PMCID: PMC9659354 DOI: 10.1016/j.isci.2022.105571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 10/20/2022] [Accepted: 11/10/2022] [Indexed: 11/14/2022] Open
Abstract
With the continuous emergence of highly transmissible SARS-CoV-2 variants, the comparison of their infectivity has become a critical issue for public health. However, a direct assessment of the viral characteristic has been challenging due to the lack of appropriate experimental models and efficient methods. Here, we integrated human alveolar organoids and single-cell transcriptome sequencing to facilitate the evaluation. In a proof-of-concept study with four highly transmissible SARS-CoV-2 variants, including GR (B.1.1.119), Alpha (B.1.1.7), Delta (B.1.617.2), and Omicron (BA.1), a rapid evaluation of the relative infectivity was possible. Our system demonstrates that the Omicron variant is 5- to 7-fold more infectious to human alveolar cells than the other SARS-CoV-2 variants at the initial stage of infection. To our knowledge, for the first time, this study measures the relative infectivity of the Omicron variant under multiple virus co-infection and provides new experimental procedures that can be applied to monitor emerging viral variants.
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Affiliation(s)
- Taewoo Kim
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Kyoung Il Min
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Jeong-Sun Yang
- Division of Emerging Virus & Vector Research, Center for Emerging Virus Research, National Institute of Health, Korea Disease Control and Prevention Agency, Cheongju 28159, Republic of Korea
| | - Jun Won Kim
- Division of Emerging Virus & Vector Research, Center for Emerging Virus Research, National Institute of Health, Korea Disease Control and Prevention Agency, Cheongju 28159, Republic of Korea
| | - Junhyung Cho
- Division of Emerging Virus & Vector Research, Center for Emerging Virus Research, National Institute of Health, Korea Disease Control and Prevention Agency, Cheongju 28159, Republic of Korea
| | - Yun Ho Kim
- Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Seoul National University Cancer Research Institute, Seoul 03080, Republic of Korea
| | - Jeong Seok Lee
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
- GENOME INSIGHT Inc., Daejeon 34051, Republic of Korea
| | - Young Tae Kim
- Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Seoul National University Cancer Research Institute, Seoul 03080, Republic of Korea
| | - Kyung-Chang Kim
- Division of Emerging Virus & Vector Research, Center for Emerging Virus Research, National Institute of Health, Korea Disease Control and Prevention Agency, Cheongju 28159, Republic of Korea
| | | | - Kwon Joong Na
- Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Seoul National University Cancer Research Institute, Seoul 03080, Republic of Korea
- Corresponding author
| | - Joo-Yeon Lee
- Division of Emerging Virus & Vector Research, Center for Emerging Virus Research, National Institute of Health, Korea Disease Control and Prevention Agency, Cheongju 28159, Republic of Korea
- Corresponding author
| | - Young Seok Ju
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
- GENOME INSIGHT Inc., Daejeon 34051, Republic of Korea
- Corresponding author
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16
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Seo SM, Kim SJ, Kwon O, Brilakis ES, Yoon YH, Lee KS, Kim TO, Lee PH, Kang SJ, Kim YH, Lee CW, Park SW, Lee SW. Intravascular ultrasound-guided optimization for chronic total occlusion-percutaneous coronary intervention with multiple drug-eluting stents. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Multiple stenting in the chronic total occlusion (CTO) lesions is frequently required, however associated with poorer clinical outcomes. It is demonstrated that intravascular ultrasound (IVUS)-guided CTO-percutaneous coronary intervention (PCI) is related to a lower risk of adverse clinical events.
Purpose
We aimed to evaluate the clinical impact of stent optimization under IVUS guidance for multiple stenting, comparing with single stenting.
Methods
A total of 916 patients receiving drug-eluting stent (DES) under IVUS guidance were classified into two groups (stent optimization and non-optimization) according to optimization criteria (an absolute expansion criteria; minimal stent area ≥4.9 mm2 and a relative expansion criteria; 80% of mean reference lumen area). Of total population, 314 patients (34.3%) were treated with single stent and 575 patients (62.7%) were treated with multiple stents, respectively. Ischemic-driven target-lesion revascularization (TLR)/reocclusion was evaluated.
Results
Under IVUS guidance, 316 patients (34.5%) met IVUS criteria for stent optimization The achieving rates were 53% in the single stent group and 24% in the multiple stents group, respectively, (p<0.001). During a median of 4.7 years, the multiple stent group showed a significantly higher TLR/reocclusion rate, compared with the single stent group (12.8% vs. 5.2%, adjusted hazard ratio [HR] 2.51, 95% confidence interval [CI] 1.20–5.25, p=0.01). (Figure 1) Meeting both the absolute and relative expansion criteria was associated with a significantly low rate of TLR/reocclusion rate (12.5% vs. 5.2%, adjusted HR 0.34, 95% CI: 0.15–0.79, p=0.01). Under IVUS-guidance, there was no significant difference between multiple stenting and single stenting in case of achieving the optimization criteria (6.5% vs. 4.2%, p=0.11), whereas non-optimization group in the patients with multiple stenting showed a significantly higher rate of TLR/reocclusion, compared with IVUS-optimization group in the patients with single stenting (14.5% vs. 4.2%, p=0.002). (Figure 2)
Conclusions
In CTO-PCI with DES, multiple stenting significantly increased the risk of TLR/reocclusion. IVUS-guided optimization for multiple stenting showed a comparable long-term risk of TLR/reocclusion to single stenting with IVUS optimization. Hence, achieving IVUS expansion criteria may help to reduce the risk of TLR/reocclusion in CTO-PCI with multiple DES overlapping.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- S M Seo
- Eunpyeoung St. Mary's Hospital, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - S J Kim
- Eunpyeoung St. Mary's Hospital, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - O Kwon
- Eunpyeoung St. Mary's Hospital, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - E S Brilakis
- Minneapolis Heart Institute Foundation , Minneapolis , United States of America
| | - Y H Yoon
- Sejong Chungnam National University Hospital , Sejong , Korea (Republic of)
| | - K S Lee
- Daejeon St. Mary's Hospital , Daejeon , Korea (Republic of)
| | - T O Kim
- Asan Medical Center , Seoul , Korea (Republic of)
| | - P H Lee
- Asan Medical Center , Seoul , Korea (Republic of)
| | - S J Kang
- Asan Medical Center , Seoul , Korea (Republic of)
| | - Y H Kim
- Asan Medical Center , Seoul , Korea (Republic of)
| | - C W Lee
- Asan Medical Center , Seoul , Korea (Republic of)
| | - S W Park
- Asan Medical Center , Seoul , Korea (Republic of)
| | - S W Lee
- Asan Medical Center , Seoul , Korea (Republic of)
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17
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Jeong J, Choi JI, Kim YG, Choi YY, Min KJ, Roh SY, Shim JM, Kim JS, Kim YH. Late ventricular potential for risk prediction of sudden cardiac death risk: a valuable tool or an unnecessary step? Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background/Introduction
Signal-averaged electrocardiography (SA-ECG) is a high-resolution electrocardiography that can detect late ventricular potential, which known to be a noninvasive tool for risk stratification of sudden cardiac death (SCD) by predicting reentrant ventricular tachyarrhythmia. There is a paucity of data with SA-ECG on SCD survivors without structural heart disease, whereas majority of previous studies had been focused on post myocardial infarction survivors.
Purpose
This study assessed the clinical utility of SA-ECG as a risk stratification modality for lethal arrhythmic event in patients at risk of SCD without definite structural heart disease.
Methods
Total 629 patients who experienced or had potential risk of SCD were studied with SA-ECG. Among them, 48 patients who were found to have significant structural heart disease were excluded, except arrhythmogenic right ventricular cardiomyopathy. Major arrhythmic event (MAE) was defined as composite of all-cause death, aborted SCD, and sustained VT during any time either before visit of clinic or during follow up period. Syncope and non-sustained VT was defined as non-major arrhythmic event. SA-ECG was defined positive when fulfilling three or more criterion: (1) unfiltered QRS duration ≥114ms, (2) filtered QRS duration ≥114ms, (3) duration of terminal QRS <40uV exceeding 40ms, and (4) root mean square voltage in the terminal 40ms of ≤20ms.
Results
Among total 581 patients, 145 patients with positive SA-ECG showed higher incidence of MAE compared to patients with negative SA-ECG (21.4% vs. 6.7%, OR 3.816 [95% CI 2.208–6.597], p<0.001, Table). As the number of positive SA-ECG criteria increases, incidence of MAE tended to increase sequentially, which was markedly noted from 2 positive to 3 positive criteria (10.7% to 20.8%, p<0.001, Figure). In particular, patient with inherited arrhythmia showed higher rate of positive late potential compared to those with non-inherited arrhythmia (51.0% vs. 19.3%, p<0.001).
Conclusion
This study showed that at least 3 out of 4 diagnostic criteria in SA-ECG can independently predict lethal arrhythmic events and the positive late potential was associated with lethal arrhythmic event that leads to SCD, suggesting risk prediction for SCD using SA-ECG in patients even without structural heart disease including inherited arrhythmias.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- J Jeong
- Korea University Anam Hospital , Seoul , Korea (Republic of)
| | - J I Choi
- Korea University Anam Hospital , Seoul , Korea (Republic of)
| | - Y G Kim
- Korea University Anam Hospital , Seoul , Korea (Republic of)
| | - Y Y Choi
- Korea University Anam Hospital , Seoul , Korea (Republic of)
| | - K J Min
- Korea University Anam Hospital , Seoul , Korea (Republic of)
| | - S Y Roh
- Korea University Guro Hospital , Seoul , Korea (Democratic People's Republic of)
| | - J M Shim
- Korea University Anam Hospital , Seoul , Korea (Republic of)
| | - J S Kim
- Korea University Ansan Hospital , Ansan , Korea (Democratic People's Republic of)
| | - Y H Kim
- Korea University Anam Hospital , Seoul , Korea (Republic of)
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18
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Jeong J, Choi JI, Kim YG, Choi YY, Min KJ, Roh SY, Shim JM, Kim JS, Kim YH. Clinical role of genetic testing for overlapping between Brugada syndrome and arrhythmogenic right ventricular cardiomyopathy. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background/Introduction
Brugada syndrome (BrS) and arrhythmogenic right ventricular cardiomyopathy (ARVC) are inherited arrhythmias that may predispose to sudden cardiac arrest. Although its pathogenetic mechanisms differ, overlapping features between BrS and ARVC have been demonstrated previously. However, it remains to be determined whether genetic testing for ARVC-related gene is needed in patients with BrS.
Purpose
This study is aimed to analyze genetic profiles of BrS patients using next generation sequencing (NGS) based multigene panel including ARVC related genes.
Methods
Patients who were confirmed as BrS or clinically suspected as BrS with type 2 or 3 Brugada pattern electrocardiography were studied. Genetic testing using NGS panels (Illumina Inc., San Diego, CA, USA) included 30 genetic variants associated with inherited arrhythmia and genetic cardiomyopathy.
Results
Among the total 119 patients from BrS registry, 63 patients were confirmed as BrS and 56 patients were clinically suspected as BrS without fulfilling diagnostic criteria. One-hundred-fourteen patients (95.8%) were male, and mean age of onset was 43.6 year-old. Genetic variants were identified in 25 of 42 patients who received genetic testing. Six out of 25 patients (24.0%) showed ARVC-related genotypes (2 PKP2, 1 DSG2, 1 TMEM43, 1 JUP, and 1 DSP) (Figure 1 and Table 1). None of the patients showed structural or electrocardiographic features that fulfill diagnostic criteria of ARVC. It is notable that ARVC-related genotypes were mostly frequently accounted for BrS patients, following SCN5A and SCN10A.
Conclusion
In the clinic setting, ARVC-related genetic variants were identified in significant proportion of BrS patients, supporting that genetic testing of ARVC-overlapping is needed. This study suggests that follow-up including imaging study should be considered in BrS patients with ARVC-related genotypes to monitor disease progression as ARVC.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- J Jeong
- Korea University Anam Hospital , Seoul , Korea (Republic of)
| | - J I Choi
- Korea University Anam Hospital , Seoul , Korea (Republic of)
| | - Y G Kim
- Korea University Anam Hospital , Seoul , Korea (Republic of)
| | - Y Y Choi
- Korea University Anam Hospital , Seoul , Korea (Republic of)
| | - K J Min
- Korea University Anam Hospital , Seoul , Korea (Republic of)
| | - S Y Roh
- Korea University Guro Hospital , Seoul , Korea (Democratic People's Republic of)
| | - J M Shim
- Korea University Anam Hospital , Seoul , Korea (Republic of)
| | - J S Kim
- Korea University Ansan Hospital , Ansan , Korea (Democratic People's Republic of)
| | - Y H Kim
- Korea University Anam Hospital , Seoul , Korea (Republic of)
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Pérez-Vidal RM, Gadea A, Domingo-Pardo C, Gargano A, Valiente-Dobón JJ, Clément E, Lemasson A, Coraggio L, Siciliano M, Szilner S, Bast M, Braunroth T, Collado J, Corina A, Dewald A, Doncel M, Dudouet J, de France G, Fransen C, González V, Hüyük T, Jacquot B, John PR, Jungclaus A, Kim YH, Korichi A, Labiche M, Lenzi S, Li H, Ljungvall J, López-Martens A, Mengoni D, Michelagnoli C, Müller-Gatermann C, Napoli DR, Navin A, Quintana B, Ramos D, Rejmund M, Sanchis E, Simpson J, Stezowski O, Wilmsen D, Zielińska M, Boston AJ, Barrientos D, Bednarczyk P, Benzoni G, Birkenbach B, Boston HC, Bracco A, Cederwall B, Cullen DM, Didierjean F, Eberth J, Gottardo A, Goupil J, Harkness-Brennan LJ, Hess H, Judson DS, Kaşkaş A, Korten W, Leoni S, Menegazzo R, Million B, Nyberg J, Podolyak Z, Pullia A, Ralet D, Recchia F, Reiter P, Rezynkina K, Salsac MD, Şenyiğit M, Sohler D, Theisen C, Verney D. Evidence of Partial Seniority Conservation in the πg_{9/2} Shell for the N=50 Isotones. Phys Rev Lett 2022; 129:112501. [PMID: 36154392 DOI: 10.1103/physrevlett.129.112501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 02/08/2022] [Accepted: 07/29/2022] [Indexed: 06/16/2023]
Abstract
The reduced transition probabilities for the 4_{1}^{+}→2_{1}^{+} and 2_{1}^{+}→0_{1}^{+} transitions in ^{92}Mo and ^{94}Ru and for the 4_{1}^{+}→2_{1}^{+} and 6_{1}^{+}→4_{1}^{+} transitions in ^{90}Zr have been determined in this experiment making use of a multinucleon transfer reaction. These results have been interpreted on the basis of realistic shell-model calculations in the f_{5/2}, p_{3/2}, p_{1/2}, and g_{9/2} proton valence space. Only the combination of extensive lifetime information and large scale shell-model calculations allowed the extent of the seniority conservation in the N=50 g_{9/2} orbital to be understood. The conclusion is that seniority is largely conserved in the first πg_{9/2} orbital.
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Affiliation(s)
- R M Pérez-Vidal
- Instituto de Física Corpuscular, CSIC-Universidad de Valencia, Valencia E-46980, Spain
- INFN Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
| | - A Gadea
- Instituto de Física Corpuscular, CSIC-Universidad de Valencia, Valencia E-46980, Spain
| | - C Domingo-Pardo
- Instituto de Física Corpuscular, CSIC-Universidad de Valencia, Valencia E-46980, Spain
| | - A Gargano
- INFN Complesso Universitario di Monte S. Angelo, Via Cintia, I-80126 Napoli, Italy
| | | | - E Clément
- Grand Accélérateur National d'Ions Lourds, CEA/DRF-CNRS/IN2P3, F-14076 Caen cedex 5, France
| | - A Lemasson
- Grand Accélérateur National d'Ions Lourds, CEA/DRF-CNRS/IN2P3, F-14076 Caen cedex 5, France
| | - L Coraggio
- INFN Complesso Universitario di Monte S. Angelo, Via Cintia, I-80126 Napoli, Italy
- Dipartimento di Matematica e Fisica, Università degli Studi della Campania "Luigi Vanvitelli", viale Abramo Lincoln 5, I-81100 Caserta, Italy
| | - M Siciliano
- Physics Division, Argonne National Laboratory, Lemont, 60439 Illinois, USA
| | - S Szilner
- Ruder Bošković Institute, 10000 Zagreb, Croatia
| | - M Bast
- Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany
| | - T Braunroth
- Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany
| | - J Collado
- Departamento de Ingeniería Electrónica, Universitat de Valencia, Burjassot, E-46100 Valencia, Spain
| | - A Corina
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia BC V5A 1S6, Canada
| | - A Dewald
- Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany
| | - M Doncel
- Department of Physics, Stockholm University, SE-106 91 Stockholm, Sweden
| | - J Dudouet
- Université Lyon, Université Claude Bernard Lyon 1, CNRS/IN2P3, IP2I Lyon, F-69622 Villeurbanne, France
| | - G de France
- Grand Accélérateur National d'Ions Lourds, CEA/DRF-CNRS/IN2P3, F-14076 Caen cedex 5, France
| | - C Fransen
- Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany
| | - V González
- Departamento de Ingeniería Electrónica, Universitat de Valencia, Burjassot, E-46100 Valencia, Spain
| | - T Hüyük
- Instituto de Física Corpuscular, CSIC-Universidad de Valencia, Valencia E-46980, Spain
- Instituto de Estructura de la Materia, CSIC, Madrid, E-28006 Madrid, Spain
| | - B Jacquot
- Grand Accélérateur National d'Ions Lourds, CEA/DRF-CNRS/IN2P3, F-14076 Caen cedex 5, France
| | - P R John
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - A Jungclaus
- Instituto de Estructura de la Materia, CSIC, Madrid, E-28006 Madrid, Spain
| | - Y H Kim
- Grand Accélérateur National d'Ions Lourds, CEA/DRF-CNRS/IN2P3, F-14076 Caen cedex 5, France
- Institut Laue-Langevin, 71 Avenue des Martyrs, 38042 Grenoble, France
| | - A Korichi
- IJCLab Orsay, IN2P3-CNRS, Université Paris-Saclay and Université Paris-Sud, 91405 Orsay, France
| | - M Labiche
- STFC Daresbury Laboratory, Daresbury, Warrington WA4 4AD, United Kingdom
| | - S Lenzi
- Dipartimento di Fisica e Astronomia dell'Università di Padova, I-35131 Padova, Italy
- INFN Sezione di Padova, I-35131 Padova, Italy
| | - H Li
- Grand Accélérateur National d'Ions Lourds, CEA/DRF-CNRS/IN2P3, F-14076 Caen cedex 5, France
| | - J Ljungvall
- IJCLab Orsay, IN2P3-CNRS, Université Paris-Saclay and Université Paris-Sud, 91405 Orsay, France
| | - A López-Martens
- IJCLab Orsay, IN2P3-CNRS, Université Paris-Saclay and Université Paris-Sud, 91405 Orsay, France
| | - D Mengoni
- Dipartimento di Fisica e Astronomia dell'Università di Padova, I-35131 Padova, Italy
- INFN Sezione di Padova, I-35131 Padova, Italy
| | - C Michelagnoli
- Grand Accélérateur National d'Ions Lourds, CEA/DRF-CNRS/IN2P3, F-14076 Caen cedex 5, France
- Institut Laue-Langevin, 71 Avenue des Martyrs, 38042 Grenoble, France
| | - C Müller-Gatermann
- Physics Division, Argonne National Laboratory, Lemont, 60439 Illinois, USA
- Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany
| | - D R Napoli
- INFN Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
| | - A Navin
- Grand Accélérateur National d'Ions Lourds, CEA/DRF-CNRS/IN2P3, F-14076 Caen cedex 5, France
| | - B Quintana
- Laboratorio de Radiaciones Ionizantes, Universidad de Salamanca, E-37008 Salamanca, Spain
| | - D Ramos
- Grand Accélérateur National d'Ions Lourds, CEA/DRF-CNRS/IN2P3, F-14076 Caen cedex 5, France
| | - M Rejmund
- Grand Accélérateur National d'Ions Lourds, CEA/DRF-CNRS/IN2P3, F-14076 Caen cedex 5, France
| | - E Sanchis
- Departamento de Ingeniería Electrónica, Universitat de Valencia, Burjassot, E-46100 Valencia, Spain
| | - J Simpson
- STFC Daresbury Laboratory, Daresbury, Warrington WA4 4AD, United Kingdom
| | - O Stezowski
- Université Lyon, Université Claude Bernard Lyon 1, CNRS/IN2P3, IP2I Lyon, F-69622 Villeurbanne, France
| | - D Wilmsen
- Grand Accélérateur National d'Ions Lourds, CEA/DRF-CNRS/IN2P3, F-14076 Caen cedex 5, France
| | - M Zielińska
- Irfu, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - A J Boston
- Oliver Lodge Laboratory, The University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | | | - P Bednarczyk
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, ul. Radzikowskiego 152, 31-342 Kraków, Poland
| | - G Benzoni
- INFN Sezione di Milano, I-20133 Milano, Italy
| | - B Birkenbach
- Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany
| | - H C Boston
- Oliver Lodge Laboratory, The University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - A Bracco
- INFN Sezione di Milano, I-20133 Milano, Italy
- Dipartimento di Fisica, Università di Milano, I-20133 Milano, Italy
| | - B Cederwall
- Department of Physics, KTH Royal Institute of Technology, SE-10691 Stockholm, Sweden
| | - D M Cullen
- Nuclear Physics Group, Schuster Laboratory, University of Manchester, Manchester M13 9PL, United Kingdom
| | - F Didierjean
- Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France
| | - J Eberth
- Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany
| | - A Gottardo
- INFN Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
| | - J Goupil
- Grand Accélérateur National d'Ions Lourds, CEA/DRF-CNRS/IN2P3, F-14076 Caen cedex 5, France
| | - L J Harkness-Brennan
- Oliver Lodge Laboratory, The University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - H Hess
- Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany
| | - D S Judson
- Oliver Lodge Laboratory, The University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - A Kaşkaş
- Department of Physics, Ankara University, 06100 Besevler-Ankara, Turkey
| | - W Korten
- Irfu, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - S Leoni
- INFN Sezione di Milano, I-20133 Milano, Italy
- Dipartimento di Fisica, Università di Milano, I-20133 Milano, Italy
| | - R Menegazzo
- INFN Sezione di Padova, I-35131 Padova, Italy
| | - B Million
- INFN Sezione di Milano, I-20133 Milano, Italy
| | - J Nyberg
- Department of Physics and Astronomy, Uppsala University, SE-75120 Uppsala, Sweden
| | - Zs Podolyak
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - A Pullia
- INFN Sezione di Milano, I-20133 Milano, Italy
- Dipartimento di Fisica, Università di Milano, I-20133 Milano, Italy
| | - D Ralet
- Grand Accélérateur National d'Ions Lourds, CEA/DRF-CNRS/IN2P3, F-14076 Caen cedex 5, France
| | - F Recchia
- Dipartimento di Fisica e Astronomia dell'Università di Padova, I-35131 Padova, Italy
- INFN Sezione di Padova, I-35131 Padova, Italy
| | - P Reiter
- Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany
| | - K Rezynkina
- INFN Sezione di Padova, I-35131 Padova, Italy
- Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France
| | - M D Salsac
- Irfu, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - M Şenyiğit
- Department of Physics, Ankara University, 06100 Besevler-Ankara, Turkey
| | - D Sohler
- Institute for Nuclear Research, Atomki, 4001 Debrecen, P.O. Box 51, Hungary
| | - Ch Theisen
- Irfu, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - D Verney
- IJCLab Orsay, IN2P3-CNRS, Université Paris-Saclay and Université Paris-Sud, 91405 Orsay, France
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Bagot M, Muller M, Kim YH, Ortiz-Romero PL, Zinzani PL, Beylot-Barry M, Dalle S, Jacobsen E, Combalia A, Huen A, Mehta-Shah N, Khodadoust MS, Viotti J, Paiva C, Porcu P. Lacutamab in patients with advanced mycosis fungoides according to KIR3DL2 expression: stage 1 results from the TELLOMAK phase 2 trial. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)00590-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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21
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Kim H, Kim K, Kim YH. Associations between mental illness and cancer: a systematic review and meta-analysis of observational studies. Eur Rev Med Pharmacol Sci 2022; 26:4997-5007. [PMID: 35916796 DOI: 10.26355/eurrev_202207_29286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVE Considering the impact of mental illness and cancer on the society, the relationship between the two diseases should be assessed. This study aimed at determining the association between mental illness and cancer. MATERIALS AND METHODS The Embase and Medline databases were searched on October 21, 2020. Cohort, case-control, and cross-sectional studies were eligible for study inclusion. The Newcastle-Ottawa scale was used to qualitatively assess the risk of bias. Funnel plots were drawn to evaluate the risks of bias across the included studies. RESULTS We included 58 studies from 16 countries, incorporating approximately 30 national databases and 25 million individuals. Patients with psychiatric disorders did not show an increased risk of developing cancer. However, patients with cancer had a significantly increased risk of developing mental illness. The survival rates of patients with mental illness according to cancer occurrence and patients with cancer according to mental illness occurrence were significantly decreased. CONCLUSIONS Clinicians should conduct early screening to ensure that appropriate interventions for mental illness are administered in patients with cancer. Due to the high incidence of death in patients with mental illnesses due to unnatural causes, such as suicide, homicide, and accidents, clinicians should be aware of the importance of the treatment and management of these patients.
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Affiliation(s)
- H Kim
- Department of Laboratory Medicine, Pusan National University Hospital, Busan, Republic of Korea.
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22
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Kwon O, Kim M, Choi E, Bae JH, Yoo S, Won JC, Kim YH, Shin JH, Lee JS, Kim DW. High-aspect ratio zeolitic imidazolate framework (ZIF) nanoplates for hydrocarbon separation membranes. Sci Adv 2022; 8:eabl6841. [PMID: 34985959 PMCID: PMC8730619 DOI: 10.1126/sciadv.abl6841] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Metal-organic frameworks with high aspect ratios have the potential to yield high-performance gas separation membranes. We demonstrate the scalable synthesis of high–aspect ratio zeolitic imidazolate framework (ZIF)–8 nanoplates via a direct template conversion method in which high aspect ratio–layered Zn hydroxide sheets [Zn5(NO3)2(OH)8] were used as the sacrificial precursor. Successful phase conversion occurs as a result of the collaboration of low template stability and delayed delivery of 2-methylimidazole in weakly interacting solvents, particularly using acetone. When the ZIF-8 nanoplates with an average aspect ratio of 20 were shear aligned in the 6FDA-DAM polymer matrix by bar coating, the separation performance for propylene/propane far surpassed that of the previously reported mixed matrix and polymeric membranes, showing a propylene permeability of 164 Barrer and selectivity of 33.4 at 40 weight % loadings.
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Affiliation(s)
- Ohchan Kwon
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Minsu Kim
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Eunji Choi
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Jun Hyuk Bae
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Sungmi Yoo
- Advanced Materials Division, Korea Research Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Republic of Korea
| | - Jong Chan Won
- Advanced Materials Division, Korea Research Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Republic of Korea
- Advanced Materials and Chemical Engineering, KRICT School, University of Science and Technology, 217 Gajeong-ro, Yuseong-gu, Daejeon 34114, Republic of Korea
| | - Yun Ho Kim
- Advanced Materials Division, Korea Research Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Republic of Korea
- Advanced Materials and Chemical Engineering, KRICT School, University of Science and Technology, 217 Gajeong-ro, Yuseong-gu, Daejeon 34114, Republic of Korea
| | - Ju Ho Shin
- Department of Chemical and Biomolecular Engineering, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul 04107, Republic of Korea
| | - Jong Suk Lee
- Department of Chemical and Biomolecular Engineering, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul 04107, Republic of Korea
| | - Dae Woo Kim
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
- Corresponding author.
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23
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So Y, Bae HS, Kang YY, Chung JY, Park NK, Kim J, Jung HT, Won JC, Ryou MH, Kim YH. Eco-Friendly Water-Processable Polyimide Binders with High Adhesion to Silicon Anodes for Lithium-Ion Batteries. Nanomaterials (Basel) 2021; 11:nano11123164. [PMID: 34947515 PMCID: PMC8705944 DOI: 10.3390/nano11123164] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 11/17/2021] [Accepted: 11/19/2021] [Indexed: 11/16/2022]
Abstract
Silicon is an attractive anode material for lithium-ion batteries (LIBs) because of its natural abundance and excellent theoretical energy density. However, Si-based electrodes are difficult to commercialize because of their significant volume changes during lithiation that can result in mechanical damage. To overcome this limitation, we synthesized an eco-friendly water-soluble polyimide (W-PI) precursor, poly(amic acid) salt (W-PAmAS), as a binder for Si anodes via a simple one-step process using water as a solvent. Using the W-PAmAS binder, a composite Si electrode was achieved by low-temperature processing at 150 °C. The adhesion between the electrode components was further enhanced by introducing 3,5-diaminobenzoic acid, which contains free carboxylic acid (-COOH) groups in the W-PAmAS backbone. The -COOH of the W-PI binder chemically interacts with the surface of Si nanoparticles (SiNPs) by forming ester bonds, which efficiently bond the SiNPs, even during severe volume changes. The Si anode with W-PI binder showed improved electrochemical performance with a high capacity of 2061 mAh g-1 and excellent cyclability of 1883 mAh g-1 after 200 cycles at 1200 mA g-1. Therefore, W-PI can be used as a highly effective polymeric binder in Si-based high-capacity LIBs.
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Affiliation(s)
- Yujin So
- Advanced Materials Division, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Korea; (Y.S.); (Y.Y.K.); (J.Y.C.); (N.K.P.); (J.K.)
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea;
| | - Hyeon-Su Bae
- Department of Chemical and Biological Engineering, Hanbat National University, Daejeon 34158, Korea;
| | - Yi Young Kang
- Advanced Materials Division, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Korea; (Y.S.); (Y.Y.K.); (J.Y.C.); (N.K.P.); (J.K.)
| | - Ji Yun Chung
- Advanced Materials Division, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Korea; (Y.S.); (Y.Y.K.); (J.Y.C.); (N.K.P.); (J.K.)
- Korea Research Institute of Chemical Technology (KRICT) School, University of Science and Technology, Daejeon 34113, Korea
| | - No Kyun Park
- Advanced Materials Division, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Korea; (Y.S.); (Y.Y.K.); (J.Y.C.); (N.K.P.); (J.K.)
| | - Jinsoo Kim
- Advanced Materials Division, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Korea; (Y.S.); (Y.Y.K.); (J.Y.C.); (N.K.P.); (J.K.)
| | - Hee-Tae Jung
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea;
| | - Jong Chan Won
- Advanced Materials Division, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Korea; (Y.S.); (Y.Y.K.); (J.Y.C.); (N.K.P.); (J.K.)
- Korea Research Institute of Chemical Technology (KRICT) School, University of Science and Technology, Daejeon 34113, Korea
- Correspondence: (J.C.W.); (M.-H.R.); (Y.H.K.); Tel.: +82-860-7294 (J.C.W.); +82-42-821-1534 (M.-H.R.); +82-42-860-7274 (Y.H.K.)
| | - Myung-Hyun Ryou
- Department of Chemical and Biological Engineering, Hanbat National University, Daejeon 34158, Korea;
- Correspondence: (J.C.W.); (M.-H.R.); (Y.H.K.); Tel.: +82-860-7294 (J.C.W.); +82-42-821-1534 (M.-H.R.); +82-42-860-7274 (Y.H.K.)
| | - Yun Ho Kim
- Advanced Materials Division, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Korea; (Y.S.); (Y.Y.K.); (J.Y.C.); (N.K.P.); (J.K.)
- Korea Research Institute of Chemical Technology (KRICT) School, University of Science and Technology, Daejeon 34113, Korea
- Correspondence: (J.C.W.); (M.-H.R.); (Y.H.K.); Tel.: +82-860-7294 (J.C.W.); +82-42-821-1534 (M.-H.R.); +82-42-860-7274 (Y.H.K.)
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24
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Park JH, Yoon JE, Kim YH, Kim Y, Park TJ, Kang HY. The potential skin lightening candidate, senolytic drug ABT263, for photoageing pigmentation. Br J Dermatol 2021; 186:740-742. [PMID: 34773647 DOI: 10.1111/bjd.20893] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 11/09/2021] [Accepted: 11/09/2021] [Indexed: 11/28/2022]
Abstract
Senescent cells accumulate in several tissues during ageing, including the skin, and contribute to the functional decline of the skin via the senescence-associated secretory phenotypes (SASPs) 1 . Due to the potential negative effects of SASPs during the ageing process, drugs that selectively target senescent cells or SASPs represent an important therapeutic strategy to delay skin ageing. The selective induction of cell death specifically to kill senescent cells using drugs, referred to as senolytics, is a main approach to achieve this strategy 2 .
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Affiliation(s)
- J H Park
- Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon, Korea.,Institution of Inflamm-aging translational research center, Ajou University School of Medicine, Suwon, Korea
| | - J E Yoon
- Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon, Korea.,Institution of Inflamm-aging translational research center, Ajou University School of Medicine, Suwon, Korea
| | - Y H Kim
- Department of Dermatology, Ajou University School of Medicine, Suwon, Korea
| | - Y Kim
- Institution of Inflamm-aging translational research center, Ajou University School of Medicine, Suwon, Korea.,Department of Dermatology, Ajou University School of Medicine, Suwon, Korea
| | - T J Park
- Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon, Korea.,Institution of Inflamm-aging translational research center, Ajou University School of Medicine, Suwon, Korea
| | - H Y Kang
- Institution of Inflamm-aging translational research center, Ajou University School of Medicine, Suwon, Korea.,Department of Dermatology, Ajou University School of Medicine, Suwon, Korea
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Cho SG, Kim YH, Park HJ, Park KS, Kim JH, Ahn SJ, Bom HS. Prediction of radiation-related cardiotoxicity using F-18 FDG PET in non-small-cell lung cancer. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Radiation-related cardiotoxicity has been refocused nowadays as the follow-up was increased amomg the patients with advanced lung cancer. The early recognition of the occult cardiotoxicity enables the early intervention preventing clinically significant cardiac events or worsening of severity.
Purpose
We aim to search whether the F-18 fluorodeoxyglucose positron emission tomography (FDG PET) performed immediately after radiotherapy could predict the late cardiac events.
Methods
We retrospectively enrolled 133 patients with locally advanced, unresectable stage III NSCLC who underwent F-18 fluorodeoxyglucose positron emission tomography (FDG PET) immediately after CCRT for the response evaluation and survived at least for 6 months. Heart was recontoured according to the RTOG 0617 secondary analysis atlas for the dose volume analysis. Standardized uptake values (SUV) of the left ventricular myocardium were measured on FDG PET images. The patients were regularly followed up for the disease progression and complications. The primary end-point was the cardiac events grade ≥2 based on the Common Terminology Criteria for Adverse Events (version 5.0).
Results
FDG PET was performed at median interval of 11 days after CCRT. Fourty-two patients experienced cardiotoxicity during a median follow-up of 47 months (range, 12 – 123 months). In univariable analysis, mean heart dose, maximum SUV of the left ventricle (LV SUVmax), white blood cell count, and diabetes were associated with the risk of cardiotoxicity. In multivariable analysis, only higher mean heart dose (>11.1 Gy, hazard ratio 3.930 [95% confidence interval 1.933–7.988]; p=0.0002) and higher LV SUVmax (>12.84, 2.189 [1.162–4.124]; p=0.0152) were independently associated with increased risk of cardiotoxicity. In subgroup analyses, LV SUVmax remained predictive of cardiotoxicity among those with higher mean heart dose, but not among those with lower mean heart dose.
Conclusion
Early FDG PET after CCRT for NSCLC could predict the late cardiac events, especially in patients with high dose cardiac irradiation.
Funding Acknowledgement
Type of funding sources: Public Institution(s). Main funding source(s): This work was supported by a grant of the Basic Science Research Program through the National Research Foundation funded by the Ministry of Education, Republic of Korea (Principal Investigator: Sang-Geon Cho)
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Affiliation(s)
- S G Cho
- Chonnam National University Hospital, Nuclear Medicine, Gwangju, Korea (Republic of)
| | - Y H Kim
- Chonnam National University Hwasun Hospital, Radiation Oncology, Hwasun, Korea (Republic of)
| | - H J Park
- Chonnam National University Hwasun Hospital, Cardiololgy, Hwasun, Korea (Republic of)
| | - K S Park
- Chonnam National University Hospital, Nuclear Medicine, Gwangju, Korea (Republic of)
| | - J H Kim
- Chonnam National University Hospital, Nuclear Medicine, Gwangju, Korea (Republic of)
| | - S J Ahn
- Chonnam National University Hwasun Hospital, Radiation Oncology, Hwasun, Korea (Republic of)
| | - H S Bom
- Chonnam National University Hwasun Hospital, Nuclear Medicine, Hwasun, Korea (Republic of)
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Lotay G, Gillespie SA, Williams M, Rauscher T, Alcorta M, Amthor AM, Andreoiu CA, Baal D, Ball GC, Bhattacharjee SS, Behnamian H, Bildstein V, Burbadge C, Catford WN, Doherty DT, Esker NE, Garcia FH, Garnsworthy AB, Hackman G, Hallam S, Hudson KA, Jazrawi S, Kasanda E, Kennington ARL, Kim YH, Lennarz A, Lubna RS, Natzke CR, Nishimura N, Olaizola B, Paxman C, Psaltis A, Svensson CE, Williams J, Wallis B, Yates D, Walter D, Davids B. First Direct Measurement of an Astrophysical p-Process Reaction Cross Section Using a Radioactive Ion Beam. Phys Rev Lett 2021; 127:112701. [PMID: 34558922 DOI: 10.1103/physrevlett.127.112701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 07/19/2021] [Accepted: 08/11/2021] [Indexed: 06/13/2023]
Abstract
We have performed the first direct measurement of the ^{83}Rb(p,γ) radiative capture reaction cross section in inverse kinematics using a radioactive beam of ^{83}Rb at incident energies of 2.4 and 2.7A MeV. The measured cross section at an effective relative kinetic energy of E_{cm}=2.393 MeV, which lies within the relevant energy window for core collapse supernovae, is smaller than the prediction of statistical model calculations. This leads to the abundance of ^{84}Sr produced in the astrophysical p process being higher than previously calculated. Moreover, the discrepancy of the present data with theoretical predictions indicates that further experimental investigation of p-process reactions involving unstable projectiles is clearly warranted.
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Affiliation(s)
- G Lotay
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - S A Gillespie
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - M Williams
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
- Department of Physics, University of York, Heslington, York YO10 5DD, United Kingdom
| | - T Rauscher
- Department of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland
- Centre for Astrophysics Research, University of Hertfordshire, Hatfield AL10 9AB, United Kingdom
| | - M Alcorta
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - A M Amthor
- Department of Physics and Astronomy, Bucknell University, Lewisburg, Pennsylvania 17837, USA
| | - C A Andreoiu
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada
| | - D Baal
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - G C Ball
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - S S Bhattacharjee
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - H Behnamian
- Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - V Bildstein
- Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - C Burbadge
- Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - W N Catford
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - D T Doherty
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - N E Esker
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - F H Garcia
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada
| | - A B Garnsworthy
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - G Hackman
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - S Hallam
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - K A Hudson
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
- Department of Physics, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada
| | - S Jazrawi
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - E Kasanda
- Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - A R L Kennington
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - Y H Kim
- Department of Nuclear Engineering, Hanyang University, Seoul 04763, Republic of Korea
| | - A Lennarz
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - R S Lubna
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - C R Natzke
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
- Department of Physics, Colorado School of Mines, Golden, Colorado 80401, USA
| | - N Nishimura
- Astrophysical Big Bang Laboratory, CPR, RIKEN, Wako, Saitama 351-0198, Japan
| | - B Olaizola
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - C Paxman
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - A Psaltis
- Department of Physics and Astronomy, McMaster University, Hamilton, Ontario L8S 4L8, Canada
| | - C E Svensson
- Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - J Williams
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - B Wallis
- Department of Physics, University of York, Heslington, York YO10 5DD, United Kingdom
| | - D Yates
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
- Department of Physics and Astronomy, University of British Columbia, Vancouver BC V6T 1Z4, Canada
| | - D Walter
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - B Davids
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
- Department of Physics, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada
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Martin WK, Padilla S, Kim YH, Hunter DL, Hays MD, DeMarini DM, Hazari MS, Gilmour MI, Farraj AK. Zebrafish irritant responses to wildland fire-related biomass smoke are influenced by fuel type, combustion phase, and byproduct chemistry. J Toxicol Environ Health A 2021; 84:674-688. [PMID: 34006202 PMCID: PMC8237130 DOI: 10.1080/15287394.2021.1925608] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Human exposure to wildfire-derived particulate matter (PM) is linked to adverse health outcomes; however, little is known regarding the influence of biomass fuel type and burn conditions on toxicity. The aim of this study was to assess the irritant potential of extractable organic material (EOM) of biomass smoke condensates from five fuels (eucalyptus, pine, pine needle, peat, or red oak), representing various fire-prone regions of the USA, burned at two temperatures each [flaming (approximately 640°C) or (smoldering approximately 500°C)] using a locomotor assay in zebrafish (Danio rerio) larvae. It was postulated that locomotor responses, as measures of irritant effects, might be dependent upon fuel type and burn conditions and that these differences relate to combustion byproduct chemistry. To test this, locomotor activity was tracked for 60 min in 6-day-old zebrafish larvae (25-32/group) immediately after exposure to 0.4% dimethyl sulfoxide (DMSO) vehicle or EOM from the biomass smoke condensates (0.3-30 µg EOM/ml; half-log intervals). All EOM samples produced concentration-dependent irritant responses. Linear regression analysis to derive rank-order potency indicated that on a µg PM basis, flaming pine and eucalyptus were the most irritating. In contrast, on an emission-factor basis, which normalizes responses to the amount of PM produced/kg of fuel burned, smoldering smoke condensates induced greater irritant responses (>100-fold) than flaming smoke condensates, with smoldering pine being the most potent. Importantly, irritant responses significantly correlated with polycyclic aromatic hydrocarbon (PAH) content, but not with organic carbon or methoxyphenols. Data indicate that fuel type and burn condition influence the quantity and chemical composition of PM as well as toxicity.
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Affiliation(s)
- W Kyle Martin
- Curriculum in Toxicology and Environmental Medicine, UNC-Chapel Hill, USA
| | - S Padilla
- Biomolecular and Computational Toxicology Division, Us Epa, Rtp, NC, US
| | - Y H Kim
- Center for Environmental Medicine, Asthma and Lung Biology, University of North Carolina, Chapel Hill, NC, US
| | - D L Hunter
- Biomolecular and Computational Toxicology Division, Us Epa, Rtp, NC, US
| | - M D Hays
- Air Methods & Characterization Division, Us Epa, Rtp, NC, US
| | - D M DeMarini
- Biomolecular and Computational Toxicology Division, Us Epa, Rtp, NC, US
| | - M S Hazari
- Public Health and Integrated Toxicology Division, Us Epa, Rtp, NC, US
| | - M I Gilmour
- Public Health and Integrated Toxicology Division, Us Epa, Rtp, NC, US
| | - A K Farraj
- Public Health and Integrated Toxicology Division, Us Epa, Rtp, NC, US
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Park H, Yoo S, Ha J, Kim J, Mun HJ, Shin TJ, Won JC, Kim YH. Tailored Polymer Gate Dielectric Engineering to Optimize Flexible Organic Field-Effect Transistors and Complementary Integrated Circuits. ACS Appl Mater Interfaces 2021; 13:30921-30929. [PMID: 34121383 DOI: 10.1021/acsami.1c06293] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The increasing demand for solution-processed and flexible organic electronics has promoted the fabrication of integrated logic circuits using organic field-effect transistors (OFETs) instead of fundamental unit devices. This has been made possible through the rapid development of materials and processes in the past few decades. It is important for the p- and n-type OFETs using different organic semiconductors (OSCs) to have complementarily matched electrical characteristics, which significantly improve the performance of organic logic circuits. In this study, an efficient strategy to optimize the performance of flexible organic electronics, such as OFETs and complementary inverters, is proposed using a combination of polymer insulators tailored to each OSC type. Photopatternable soluble copolyimides (ScoPIs), which exhibit excellent insulating properties and chemical resistance, are synthesized and applied as gate dielectric layers in the OFETs. The material and electrical properties are systematically investigated by varying the molecular ratio of ScoPIs to determine the optimal conditions for each OFET type. As a result, complementary inverters report 1.67 times higher integration density compared to the conventional ones while maintaining gain, switching threshold, and static noise margin of 23.7 V/V, 22.1 V, and 12.1 V, respectively, at a supply voltage of 40 V. The flexible complementary inverters are successfully demonstrated by fully exploiting the advantages of ScoPIs.
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Affiliation(s)
- Hyunjin Park
- Chemical Materials Solutions Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
| | - Sungmi Yoo
- Advanced Functional Polymers Center, KRICT, Daejeon 34114, Republic of Korea
| | - Jinha Ha
- Advanced Functional Polymers Center, KRICT, Daejeon 34114, Republic of Korea
- KRICT School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - Jinsoo Kim
- Advanced Functional Polymers Center, KRICT, Daejeon 34114, Republic of Korea
| | - Hyun Jung Mun
- UNIST Central Research Facilities & School of Natural Science, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Tae Joo Shin
- UNIST Central Research Facilities & School of Natural Science, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Jong Chan Won
- Advanced Functional Polymers Center, KRICT, Daejeon 34114, Republic of Korea
- KRICT School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - Yun Ho Kim
- Advanced Functional Polymers Center, KRICT, Daejeon 34114, Republic of Korea
- KRICT School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
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29
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Tsauo J, Noh SY, Shin JH, Gwon DI, Han K, Lee JM, Jeon UB, Kim YH. Retrograde transvenous obliteration for the prevention of variceal rebleeding in patients with hepatocellular carcinoma: a multicentre retrospective study. Clin Radiol 2021; 76:681-687. [PMID: 34140137 DOI: 10.1016/j.crad.2021.05.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 05/14/2021] [Indexed: 12/14/2022]
Abstract
AIM To evaluate the effectiveness and safety of retrograde transvenous obliteration (RTO) for the prevention of variceal rebleeding variceal rebleeding in patients with hepatocellular carcinoma (HCC). MATERIALS AND METHODS This multicentre retrospective study enrolled 79 patients with HCC who underwent RTO for the prevention of variceal rebleeding. Successful occlusion of the gastrorenal shunt and obliteration of the gastric varices were achieved in 74 patients, with a technical success rate of 93.7%. Of the remaining 74 patients (mean age, 64.9±10.3 years; 56 men), 66 (90.4%) had gastroesophageal varices and seven (9.6%) had isolated gastric varices. Thirty-two patients (43.8%) underwent balloon-occluded RTO, 40 patients (54.8%) underwent plug-assisted RTO, and one patient (1.4%) underwent coil-assisted RTO. No patients had major procedural complications. RESULTS Rebleeding occurred in seven patients (9.6%) during the follow-up period. The 6-week and 1-year actuarial probabilities of patients remaining free of rebleeding were 90.8±3.6% and 88.6±4.1%, respectively. The median survival was 12.6 (95% confidence interval [CI] 8-17.3) months. The 6-week, 1-year, and 3-year actuarial probabilities of survival were 83.2±4.4%, 51.1±6.6%, and 32.7±7%, respectively. New or worsening ascites and oesophageal varices occurred in 12 (16.4%) and 13 patients (17.8%), respectively, during the follow-up period. Overt hepatic encephalopathy occurred in one patient (1.4%) during the follow-up period. The Child-Pugh score remained comparable to that at baseline at 1 and 3 months. CONCLUSION RTO was effective and safe in preventing variceal rebleeding in patients with HCC.
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Affiliation(s)
- J Tsauo
- Department of Interventional Therapy, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - S Y Noh
- Department of Radiology, Kyung Hee University Seoul Hospital, Seoul, South Korea
| | - J H Shin
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea.
| | - D I Gwon
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - K Han
- Department of Radiology, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - J M Lee
- Department of Radiology, Soonchunhyang University Hospital, Bucheon, South Korea
| | - U B Jeon
- Department of Radiology, Pusan National University Yangsan Hospital, Yangsan, South Korea
| | - Y H Kim
- Department of Radiology, Daegu Catholic University Medical Center, Daegu, South Korea
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30
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Park JW, Kwon OS, Shim JM, Yu HT, Kim TH, Uhm JS, Kim JY, Choi JI, Joung BY, Lee MH, Kim YH, Pak HN. Artificial intelligence-predicted poor responders to catheter ablation for atrial fibrillation. Europace 2021. [DOI: 10.1093/europace/euab116.228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Introduction
Although atrial fibrillation (AF) catheter ablation is effective for rhythm control, in some patients it is hard to maintain sinus rhythm in spite of repeated AF catheter ablation (AFCA) procedures and anti-arrhythmic drugs (AADs). We explored the pre-procedural predictors for poor responders to AFCA and tested whether artificial intelligence (AI) assists the prediction of poor responders in the independent cohort by determining the invasive parameters.
Methods
Among 1,214 patients who underwent AFCA and regular rhythm follow-up for 56.2 ± 33.8 months (59 ± 11 years, 73.5% male, 68.6% paroxysmal AF), we differentiated 92 poor responders defined as those with sustained AF despite repeat AFCAs, AADs, or electrical cardioversion. Using the Youden index, we identified advanced LA remodeling with lower LA voltage under 1.109mV. AI model, which was derived from development cohort using medical record, was applied to predict LA voltage <1.109mV in the independent cohort (n = 634, poor responders = 24) using a grad-cam score.
Results
The patients with lower LA voltage under 1.109mV showed significantly poorer rhythm outcomes (Log-rank p < 0.001). We determined invasive parameter LA voltage by using the multiple variables (age, female sex, AF type, CHA2DS2VASc score, LA dimension, E/em, hemoglobin, PR interval) and achieved relatively good prediction power of AI for LA voltage <1.109mV (AUC = 0.734, sensitivity 0.729, specificity 0.643) in the test cohort. In the independent cohort, the AI model showed good discrimination power for poor responders (AUC 0.751, p < 0.001) by estimating LA voltage, which is an invasive variable. The patients with predicted lower LA voltage (grad-cam score <0) showed poorer rhythm outcome after active rhythm control (Log-rank p < 0.001)
Conclusions
The patients with advanced atrial remodeling with low LA voltage, which can be predicted by an AI, showed significantly higher recurrence of AF after AFCA with AADs or cardioversion. AI may assist to select these poor responder patients before the AFCA procedure. Abstract Figure.
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Affiliation(s)
- JW Park
- Yonsei University Health system, Seoul, Korea (Republic of)
| | - OS Kwon
- Yonsei University Health system, Seoul, Korea (Republic of)
| | - JM Shim
- Korea University, Cardiovascular Center, Seoul, Korea (Republic of)
| | - HT Yu
- Yonsei University Health system, Seoul, Korea (Republic of)
| | - TH Kim
- Yonsei University Health system, Seoul, Korea (Republic of)
| | - JS Uhm
- Yonsei University Health system, Seoul, Korea (Republic of)
| | - JY Kim
- Yonsei University Health system, Seoul, Korea (Republic of)
| | - JI Choi
- Korea University, Cardiovascular Center, Seoul, Korea (Republic of)
| | - BY Joung
- Yonsei University Health system, Seoul, Korea (Republic of)
| | - MH Lee
- Yonsei University Health system, Seoul, Korea (Republic of)
| | - YH Kim
- Korea University, Cardiovascular Center, Seoul, Korea (Republic of)
| | - HN Pak
- Yonsei University Health system, Seoul, Korea (Republic of)
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31
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Schmitt C, Lemasson A, Schmidt KH, Jhingan A, Biswas S, Kim YH, Ramos D, Andreyev AN, Curien D, Ciemala M, Clément E, Dorvaux O, De Canditiis B, Didierjean F, Duchêne G, Dudouet J, Frankland J, Jacquot B, Raison C, Ralet D, Retailleau BM, Stuttgé L, Tsekhanovich I. Experimental Evidence for Common Driving Effects in Low-Energy Fission from Sublead to Actinides. Phys Rev Lett 2021; 126:132502. [PMID: 33861122 DOI: 10.1103/physrevlett.126.132502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 10/22/2020] [Accepted: 02/25/2021] [Indexed: 06/12/2023]
Abstract
Isotopic distributions of fragments from fission of the neutron-deficient ^{178}Hg nuclide are reported. This experimental observable is obtained for the first time in the region around lead using an innovative approach based on inverse kinematics and the coincidence between the large acceptance magnetic spectrometer VAMOS++ and a new detection arm close to the target. The average fragment N/Z ratio and prompt neutron M_{n} multiplicity are derived and compared with current knowledge from actinide fission. A striking consistency emerges, revealing the unexpected dominant role of the proton subsystem with atomic number between the Z=28 and 50 magic numbers. The origin of nuclear charge polarization in fission and fragment deformation at scission are discussed.
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Affiliation(s)
- C Schmitt
- Institut Pluridisciplinaire Hubert Curien, CNRS/IN2P3-UDS, 67037 Strasbourg Cedex 2, France
| | - A Lemasson
- GANIL, CEA/DRF-CNRS/IN2P3, BP 55027, 14076 Caen cedex 5, France
| | | | - A Jhingan
- Inter University Accelerator Centre, Aruna Asaf Ali Marg, Post Box 10502, New Delhi 110067, India
| | - S Biswas
- GANIL, CEA/DRF-CNRS/IN2P3, BP 55027, 14076 Caen cedex 5, France
| | - Y H Kim
- Institut Laue-Langevin, 38042 Grenoble Cedex 9, France
| | - D Ramos
- GANIL, CEA/DRF-CNRS/IN2P3, BP 55027, 14076 Caen cedex 5, France
| | - A N Andreyev
- Department of Physics, University of York, York YO10 5DD, United Kingdom
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
- ISOLDE, CERN, CH-1211 Geneve 23, Switzerland
| | - D Curien
- Institut Pluridisciplinaire Hubert Curien, CNRS/IN2P3-UDS, 67037 Strasbourg Cedex 2, France
| | - M Ciemala
- The Niewodniczanski Institute of Nuclear Physics-PAN, 31-342 Kraków, Poland
| | - E Clément
- GANIL, CEA/DRF-CNRS/IN2P3, BP 55027, 14076 Caen cedex 5, France
| | - O Dorvaux
- Institut Pluridisciplinaire Hubert Curien, CNRS/IN2P3-UDS, 67037 Strasbourg Cedex 2, France
| | - B De Canditiis
- Institut Pluridisciplinaire Hubert Curien, CNRS/IN2P3-UDS, 67037 Strasbourg Cedex 2, France
| | - F Didierjean
- Institut Pluridisciplinaire Hubert Curien, CNRS/IN2P3-UDS, 67037 Strasbourg Cedex 2, France
| | - G Duchêne
- Institut Pluridisciplinaire Hubert Curien, CNRS/IN2P3-UDS, 67037 Strasbourg Cedex 2, France
| | - J Dudouet
- CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405 Orsay, France
- Université Lyon, Université Claude Bernard Lyon 1, CNRS/IN2P3, IP2I Lyon, UMR 5822, F-69622 Villeurbanne, France
| | - J Frankland
- GANIL, CEA/DRF-CNRS/IN2P3, BP 55027, 14076 Caen cedex 5, France
| | - B Jacquot
- GANIL, CEA/DRF-CNRS/IN2P3, BP 55027, 14076 Caen cedex 5, France
| | - C Raison
- Department of Physics, University of York, York YO10 5DD, United Kingdom
| | - D Ralet
- GANIL, CEA/DRF-CNRS/IN2P3, BP 55027, 14076 Caen cedex 5, France
| | - B-M Retailleau
- GANIL, CEA/DRF-CNRS/IN2P3, BP 55027, 14076 Caen cedex 5, France
| | - L Stuttgé
- Université Lyon, Université Claude Bernard Lyon 1, CNRS/IN2P3, IP2I Lyon, UMR 5822, F-69622 Villeurbanne, France
| | - I Tsekhanovich
- Université Bordeaux, CNRS, CENBG, UMR 5797, F-33170 Gradignan, France
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Han Y, Park B, Eom J, Jella V, Ippili S, Pammi SVN, Choi J, Ha H, Choi H, Jeon C, Park K, Jung H, Yoo S, Kim HY, Kim YH, Yoon S. Direct Growth of Highly Conductive Large-Area Stretchable Graphene. Adv Sci (Weinh) 2021; 8:2003697. [PMID: 33854895 PMCID: PMC8025006 DOI: 10.1002/advs.202003697] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/19/2020] [Indexed: 06/12/2023]
Abstract
The direct synthesis of inherently defect-free, large-area graphene on flexible substrates is a key technology for soft electronic devices. In the present work, in situ plasma-assisted thermal chemical vapor deposition is implemented in order to synthesize 4 in. diameter high-quality graphene directly on 10 nm thick Ti-buffered substrates at 100 °C. The in situ synthesized monolayer graphene displays outstanding stretching properties coupled with low sheet resistance. Further improved mechanical and electronic performances are achieved by the in situ multi-stacking of graphene. The four-layered graphene multi-stack is shown to display an ultralow resistance of ≈6 Ω sq-1, which is consistently maintained during the harsh repeat stretching tests and is assisted by self-p-doping under ambient conditions. Graphene-field effect transistors fabricated on polydimethylsiloxane substrates reveal an unprecedented hole mobility of ≈21 000 cm2 V-1 s-1 at a gate voltage of -4 V, irrespective of the channel length, which is consistently maintained during the repeat stretching test of 5000 cycles at 140% parallel strain.
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Affiliation(s)
- Yire Han
- Department of Materials Science and EngineeringChungnam National UniversityDaeduk Science TownDaejeon34134Republic of Korea
| | | | - Ji‐Ho Eom
- Department of Materials Science and EngineeringChungnam National UniversityDaeduk Science TownDaejeon34134Republic of Korea
| | - Venkatraju Jella
- Department of Materials Science and EngineeringChungnam National UniversityDaeduk Science TownDaejeon34134Republic of Korea
| | - Swathi Ippili
- Department of Materials Science and EngineeringChungnam National UniversityDaeduk Science TownDaejeon34134Republic of Korea
| | - S. V. N. Pammi
- Department of Materials Science and EngineeringChungnam National UniversityDaeduk Science TownDaejeon34134Republic of Korea
| | - Jin‐Seok Choi
- Analysis Center for Research Advancement (KARA)Korea Advanced Institute of Science and Technology291 Daehak‐ro, Yuseong‐guDaejeon34141Republic of Korea
| | - Hyunwoo Ha
- Department of Materials Science and EngineeringChungnam National UniversityDaeduk Science TownDaejeon34134Republic of Korea
| | - Hyuk Choi
- Department of Materials Science and EngineeringChungnam National UniversityDaeduk Science TownDaejeon34134Republic of Korea
| | - Cheolho Jeon
- Advanced Nano‐Surface GroupKorea Basic Science Institute (KBSI)169‐148 Gwahangno, Yuseong‐guDaejeon34133Republic of Korea
| | - Kangho Park
- Department of Chemical and Biomolecular EngineeringKorea Advanced Institute of Science and TechnologyDaejeon34141Republic of Korea
| | - Hee‐Tae Jung
- Department of Chemical and Biomolecular EngineeringKorea Advanced Institute of Science and TechnologyDaejeon34141Republic of Korea
| | - Sungmi Yoo
- Advanced Materials DivisionKorea Research Institute of Chemical TechnologyDaejeon34114Republic of Korea
| | - Hyun You Kim
- Department of Materials Science and EngineeringChungnam National UniversityDaeduk Science TownDaejeon34134Republic of Korea
| | - Yun Ho Kim
- Advanced Materials DivisionKorea Research Institute of Chemical TechnologyDaejeon34114Republic of Korea
- Department of Chemical Convergence Materials and ProcessesKRICT SchoolUniversity of Science and TechnologyDaejeon34114Republic of Korea
| | - Soon‐Gil Yoon
- Department of Materials Science and EngineeringChungnam National UniversityDaeduk Science TownDaejeon34134Republic of Korea
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Hodak E, Sherman S, Papadavid E, Bagot M, Querfeld C, Quaglino P, Prince HM, Ortiz-Romero PL, Stadler R, Knobler R, Guenova E, Estrach T, Patsatsi A, Leshem YA, Prague-Naveh H, Berti E, Alberti-Violetti S, Cowan R, Jonak C, Nikolaou V, Mitteldorf C, Akilov O, Geskin L, Matin R, Beylot-Barry M, Vakeva L, Sanches JA, Servitje O, Weatherhead S, Wobser M, Yoo J, Bayne M, Bates A, Dunnill G, Marschalko M, Buschots AM, Wehkamp U, Evison F, Hong E, Amitay-Laish I, Stranzenbach R, Vermeer M, Willemze R, Kempf W, Cerroni L, Whittaker S, Kim YH, Scarisbrick JJ. Should we be imaging lymph nodes at initial diagnosis of early-stage mycosis fungoides? Results from the PROspective Cutaneous Lymphoma International Prognostic Index (PROCLIPI) international study. Br J Dermatol 2021; 184:524-531. [PMID: 32574377 DOI: 10.1111/bjd.19303] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/30/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Early-stage mycosis fungoides (MF) includes involvement of dermatopathic lymph nodes (LNs) or early lymphomatous LNs. There is a lack of unanimity among current guidelines regarding the indications for initial staging imaging in early-stage presentation of MF in the absence of enlarged palpable LNs. OBJECTIVES To investigate how often imaging is performed in patients with early-stage presentation of MF, to assess the yield of LN imaging, and to determine what disease characteristics promoted imaging. METHODS A review of clinicopathologically confirmed newly diagnosed patients with cutaneous patch/plaque (T1/T2) MF from PROspective Cutaneous Lymphoma International Prognostic Index (PROCLIPI) data. RESULTS PROCLIPI enrolled 375 patients with stage T1/T2 MF: 304 with classical MF and 71 with folliculotropic MF. Imaging was performed in 169 patients (45%): 83 with computed tomography, 18 with positron emission tomography-computed tomography and 68 with ultrasound. Only nine of these (5%) had palpable enlarged (≥ 15 mm) LNs, with an over-representation of plaques, irrespectively of the 10% body surface area cutoff that distinguishes T1 from T2. Folliculotropic MF was not more frequently imaged than classical MF. Radiologically enlarged LNs (≥ 15 mm) were detected in 30 patients (18%); only seven had clinical lymphadenopathy. On multivariate analysis, plaque presentation was the sole parameter significantly associated with radiologically enlarged LNs. Imaging of only clinically enlarged LNs upstaged 4% of patients (seven of 169) to at least IIA, whereas nonselective imaging upstaged another 14% (24 of 169). LN biopsy, performed in eight of 30 patients, identified N3 (extensive lymphomatous involvement) in two and N1 (dermatopathic changes) in six. CONCLUSIONS Physical examination was a poor determinant of LN enlargement or involvement. Presence of plaques was associated with a significant increase in identification of enlarged or involved LNs in patients with early-stage presentation of MF, which may be important when deciding who to image. Imaging increases the detection rate of stage IIA MF, and identifies rare cases of extensive lymphomatous nodes, upstaging them to advanced-stage IVA2.
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Affiliation(s)
- E Hodak
- Division of Dermatology, Rabin Medical Center - Beilinson Hospital, Petach Tikva; affiliated to Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - S Sherman
- Division of Dermatology, Rabin Medical Center - Beilinson Hospital, Petach Tikva; affiliated to Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - E Papadavid
- Athens University Medical School, Athens, Greece
| | - M Bagot
- Hospital St Louis, Paris, France
| | - C Querfeld
- City of Hope National Medical Center and Beckman Research Institute, Duarte, CA, USA
| | - P Quaglino
- Dermatologic Clinic, University of Turin Medical School, Turin, Italy
| | - H M Prince
- Sir Peter MacCallum Cancer Centre, University of Melbourne, Melbourne, VIC, Australia
| | - P L Ortiz-Romero
- Department of Dermatology, Hospital 12 de Octubre, Medical School, University Complutense, Madrid, Spain
| | - R Stadler
- Johannes Wesling University Medical Centre, Minden, Germany
| | - R Knobler
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - E Guenova
- University Hospital Zurich, Zurich, Switzerland
| | - T Estrach
- Hospital Clinico, University of Barcelona, Barcelona, Spain
| | - A Patsatsi
- Aristotle University of Thessaloniki, Papageorgiou General Hospital, Thessaloniki, Greece
| | - Y A Leshem
- Division of Dermatology, Rabin Medical Center - Beilinson Hospital, Petach Tikva; affiliated to Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - H Prague-Naveh
- Division of Dermatology, Rabin Medical Center - Beilinson Hospital, Petach Tikva; affiliated to Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - E Berti
- University of Milan, Milan, Italy
| | | | - R Cowan
- Christie Hospital, Manchester, UK
| | - C Jonak
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - V Nikolaou
- Athens University Medical School, Athens, Greece
| | - C Mitteldorf
- HELIOS Klinikum Hildesheim GmbH, University Medical Centre Göttingen, Göttingen, Germany
| | - O Akilov
- University of Pittsburgh School of Medicine, Pennsylvania, PA, USA
| | - L Geskin
- University of Columbia, New York, NY, USA
| | - R Matin
- Churchill Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | | | - L Vakeva
- Helsinki University Central Hospital, Helsinki, Finland
| | - J A Sanches
- University of São Paulo Medical School, São Paulo, SP, Brazil
| | - O Servitje
- Hospital Universatari de Bellvitge, Barcelona, Spain
| | | | - M Wobser
- University Hospital Wuerzburg, Wuerzburg, Germany
| | - J Yoo
- University Hospital Birmingham, Birmingham, UK
| | | | - A Bates
- University Hospital Southampton, Southampton, UK
| | - G Dunnill
- University Hospital Bristol, Bristol, UK
| | | | | | - U Wehkamp
- University Hospital Kiel, Kiel, Germany
| | - F Evison
- University Hospital Birmingham, Birmingham, UK
| | - E Hong
- Stanford University Medical Center, Stanford, CA, USA
| | - I Amitay-Laish
- Division of Dermatology, Rabin Medical Center - Beilinson Hospital, Petach Tikva; affiliated to Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - R Stranzenbach
- Johannes Wesling University Medical Centre, Minden, Germany
| | - M Vermeer
- Leiden University Medical Centre, Leiden, the Netherlands
| | - R Willemze
- Leiden University Medical Centre, Leiden, the Netherlands
| | - W Kempf
- Kempf and PFlatz, Histologische Diagnostik, Zurich, Switzerland
| | - L Cerroni
- Department of Dermatology, Research Unit Dermatopathology, Medical University of Graz, Graz, Austria
| | | | - Y H Kim
- Stanford University Medical Center, Stanford, CA, USA
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Yang J, Kim H, Shin K, Nam Y, Heo HJ, Kim GH, Hwang BY, Kim J, Woo S, Choi HS, Ko DS, Lee D, Kim YH. Molecular insights into the development of hepatic metastases in colorectal cancer: a metastasis prediction study. Eur Rev Med Pharmacol Sci 2020; 24:12701-12708. [PMID: 33378017 DOI: 10.26355/eurrev_202012_24168] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Colorectal cancer is presently the third most commonly diagnosed cancer in the United States. In this study, we identified molecular differences between hepatic and non-hepatic metastases in colorectal cancer and evaluated their prognostic significance. MATERIALS AND METHODS We downloaded primary data from the NCBI Gene Expression Omnibus (GSE6988, GSE62321, GSE50760, and GSE28722). To identify the molecular differences, we used the Significance Analysis of Microarray method. We selected nine prognostic genes (SYTL2, PTPLAD1, CDS1, RNF138, PIGR, WDR78, MYO7B, TSPAN3, and ATP5F1) with hepatic metastasis prediction score in colorectal cancer (hereafter referred to as LASSO Score). We confirmed the prognostic significance of the LASSO Score by using Kaplan-Meier survival analysis, multivariate analysis, the time-dependent area under the curve (AUC) of Uno's C-index, and the AUC of the receiver operating characteristic curve at 1-5 years. RESULTS Survival analysis revealed that a high LASSO Score is associated with a poor prognosis in colorectal cancer patients with hepatic metastases (p = 0). Analysis of C-indices and AUC values from the receiver operating characteristic curve further supported this prediction by the LASSO Score. Multivariate analysis confirmed the prognostic significance of the LASSO Score (p = 1.13e-06). CONCLUSIONS This study reveals the biological mechanisms underlying hepatic metastases in colorectal cancer and will help in developing targeted therapies for colorectal cancer.
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Affiliation(s)
- J Yang
- Department of Premedicine, School of Medicine, Pusan National University, Yangsan, South Korea.
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Kim IJ, Kim YH, Park JI, Kim BC, Yi CY. Operating a graphite calorimeter in quasi-isothermal mode under high-energy x-ray beams. Phys Med Biol 2020; 65:235005. [PMID: 33053514 DOI: 10.1088/1361-6560/abc132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
In this study, we developed a semi-active method to run a graphite calorimeter in the quasi-isothermal mode under high-energy x-ray beams. The rate of energy imparted by the beam during irradiation was compensated mainly by removing the electrical heating power based on the pre-calculation and in part by an active automated algorithm, as well, while the temperature of the calorimeter core was kept constant. Irradiations were performed under the linear electron accelerator x-ray beams at 6, 8, 10, 15, and 18 MV. A simple model was applied to analyze the results. The energy imparted to the core was determined with an uncertainty level of 0.2%-0.3%, and the results were reaffirmed by comparing it with that obtained by the quasi-adiabatic mode. The normalized root-mean-square deviation to the mean from the quasi-adiabatic mode was 0.11%, and the associated uncertainty was 0.16% taking into account the correlation of the uncertainty components. This level of agreement showed that the present method is practical for the high-energy x-ray dosimetry.
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Affiliation(s)
- In Jung Kim
- Ionizing Radiation Metrology Group, Korea Research Institute of Standards and Science, Daejeon, Republic of Korea
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Choi J, Yang K, Bae HS, Phiri I, Ahn HJ, Won JC, Lee YM, Kim YH, Ryou MH. Highly Stable Porous Polyimide Sponge as a Separator for Lithium-metal Secondary Batteries. Nanomaterials (Basel) 2020; 10:nano10101976. [PMID: 33036223 PMCID: PMC7600698 DOI: 10.3390/nano10101976] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 09/26/2020] [Accepted: 09/30/2020] [Indexed: 11/16/2022]
Abstract
To inhibit Li-dendrite growth on lithium (Li)-metal electrodes, which causes capacity deterioration and safety issues in Li-ion batteries, we prepared a porous polyimide (PI) sponge using a solution-processable high internal-phase emulsion technique with a water-soluble PI precursor solution; the process is not only simple but also environmentally friendly. The prepared PI sponge was processed into porous PI separators and used for Li-metal electrodes. The physical properties (e.g., thermal stability, liquid electrolyte uptake, and ionic conductivity) of the porous PI separators and their effect on the Li-metal anodes (e.g., self-discharge and open-circuit voltage properties after storage, cycle performance, rate capability, and morphological changes) were investigated. Owing to the thermally stable properties of the PI polymer, the porous PI separators demonstrated no dimensional changes up to 180 °C. In comparison with commercialized polyethylene (PE) separators, the porous PI separators exhibited improved wetting ability for liquid electrolytes; thus, the latter improved not only the physical properties (e.g., improved the electrolyte uptake and ionic conductivity) but also the electrochemical properties of Li-metal electrodes (e.g., maintained stable self-discharge capacity and open-circuit voltage features after storage and improved the cycle performance and rate capability) in comparison with PE separators.
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Affiliation(s)
- Junyoung Choi
- Department of Chemical and Biological Engineering, Hanbat National University, 125 Dongseo-daero, Yuseong-gu, Daejeon 34158, Korea; (J.C.); (H.-S.B.); (I.P.)
- Advanced Materials Division, Korea Research Institute of Chemical Technology (KRICT), 141 Gajeongro, Yuseong-gu, Daejeon 34114, Korea; (K.Y.); (H.J.A.); (J.C.W.)
- Korea Research Institute of Chemical Technology (KRICT) School, University of Science and Technology, 217 Gajeongro, Yuseong-gu, Daejeon 34113, Korea
| | - Kwansoo Yang
- Advanced Materials Division, Korea Research Institute of Chemical Technology (KRICT), 141 Gajeongro, Yuseong-gu, Daejeon 34114, Korea; (K.Y.); (H.J.A.); (J.C.W.)
- Korea Research Institute of Chemical Technology (KRICT) School, University of Science and Technology, 217 Gajeongro, Yuseong-gu, Daejeon 34113, Korea
| | - Hyeon-Su Bae
- Department of Chemical and Biological Engineering, Hanbat National University, 125 Dongseo-daero, Yuseong-gu, Daejeon 34158, Korea; (J.C.); (H.-S.B.); (I.P.)
| | - Isheunesu Phiri
- Department of Chemical and Biological Engineering, Hanbat National University, 125 Dongseo-daero, Yuseong-gu, Daejeon 34158, Korea; (J.C.); (H.-S.B.); (I.P.)
| | - Hyun Jeong Ahn
- Advanced Materials Division, Korea Research Institute of Chemical Technology (KRICT), 141 Gajeongro, Yuseong-gu, Daejeon 34114, Korea; (K.Y.); (H.J.A.); (J.C.W.)
- Korea Research Institute of Chemical Technology (KRICT) School, University of Science and Technology, 217 Gajeongro, Yuseong-gu, Daejeon 34113, Korea
| | - Jong Chan Won
- Advanced Materials Division, Korea Research Institute of Chemical Technology (KRICT), 141 Gajeongro, Yuseong-gu, Daejeon 34114, Korea; (K.Y.); (H.J.A.); (J.C.W.)
- Korea Research Institute of Chemical Technology (KRICT) School, University of Science and Technology, 217 Gajeongro, Yuseong-gu, Daejeon 34113, Korea
| | - Yong Min Lee
- Department of Energy Science and Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), 333 Techno Jungang-Daero, Daegu 42988, Korea
- Correspondence: (Y.M.L.); (Y.H.K.); (M.-H.R.); Tel.: +82-42-785-6425 (Y.M.L); +82-42-860-7274 (Y.H.K.); +82-42-821-1534 (M.-H.R.)
| | - Yun Ho Kim
- Advanced Materials Division, Korea Research Institute of Chemical Technology (KRICT), 141 Gajeongro, Yuseong-gu, Daejeon 34114, Korea; (K.Y.); (H.J.A.); (J.C.W.)
- Korea Research Institute of Chemical Technology (KRICT) School, University of Science and Technology, 217 Gajeongro, Yuseong-gu, Daejeon 34113, Korea
- Correspondence: (Y.M.L.); (Y.H.K.); (M.-H.R.); Tel.: +82-42-785-6425 (Y.M.L); +82-42-860-7274 (Y.H.K.); +82-42-821-1534 (M.-H.R.)
| | - Myung-Hyun Ryou
- Department of Chemical and Biological Engineering, Hanbat National University, 125 Dongseo-daero, Yuseong-gu, Daejeon 34158, Korea; (J.C.); (H.-S.B.); (I.P.)
- Correspondence: (Y.M.L.); (Y.H.K.); (M.-H.R.); Tel.: +82-42-785-6425 (Y.M.L); +82-42-860-7274 (Y.H.K.); +82-42-821-1534 (M.-H.R.)
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Stib MT, Vasquez J, Dong MP, Kim YH, Subzwari SS, Triedman HJ, Wang A, Wang HLC, Yao AD, Jayaraman M, Boxerman JL, Eickhoff C, Cetintemel U, Baird GL, McTaggart RA. Detecting Large Vessel Occlusion at Multiphase CT Angiography by Using a Deep Convolutional Neural Network. Radiology 2020; 297:640-649. [PMID: 32990513 DOI: 10.1148/radiol.2020200334] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Background Large vessel occlusion (LVO) stroke is one of the most time-sensitive diagnoses in medicine and requires emergent endovascular therapy to reduce morbidity and mortality. Leveraging recent advances in deep learning may facilitate rapid detection and reduce time to treatment. Purpose To develop a convolutional neural network to detect LVOs at multiphase CT angiography. Materials and Methods This multicenter retrospective study evaluated 540 adults with CT angiography examinations for suspected acute ischemic stroke from February 2017 to June 2018. Examinations positive for LVO (n = 270) were confirmed by catheter angiography and LVO-negative examinations (n = 270) were confirmed through review of clinical and radiology reports. Preprocessing of the CT angiography examinations included vasculature segmentation and the creation of maximum intensity projection images to emphasize the contrast agent-enhanced vasculature. Seven experiments were performed by using combinations of the three phases (arterial, phase 1; peak venous, phase 2; and late venous, phase 3) of the CT angiography. Model performance was evaluated on the held-out test set. Metrics included area under the receiver operating characteristic curve (AUC), sensitivity, and specificity. Results The test set included 62 patients (mean age, 69.5 years; 48% women). Single-phase CT angiography achieved an AUC of 0.74 (95% confidence interval [CI]: 0.63, 0.85) with sensitivity of 77% (24 of 31; 95% CI: 59%, 89%) and specificity of 71% (22 of 31; 95% CI: 53%, 84%). Phases 1, 2, and 3 together achieved an AUC of 0.89 (95% CI: 0.81, 0.96), sensitivity of 100% (31 of 31; 95% CI: 99%, 100%), and specificity of 77% (24 of 31; 95% CI: 59%, 89%), a statistically significant improvement relative to single-phase CT angiography (P = .01). Likewise, phases 1 and 3 and phases 2 and 3 also demonstrated improved fit relative to single phase (P = .03). Conclusion This deep learning model was able to detect the presence of large vessel occlusion and its diagnostic performance was enhanced by using delayed phases at multiphase CT angiography examinations. © RSNA, 2020 Online supplemental material is available for this article. See also the editorial by Ospel and Goyal in this issue.
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Affiliation(s)
- Matthew T Stib
- From the Departments of Diagnostic Imaging (M.T.S., M.J., J.L.B., G.L.B., R.A.M.), Diagnostic Imaging (A.D.Y.), and Neurosurgery (M.J., R.A.M.), Warren Alpert School of Medicine at Brown University, Rhode Island Hospital, 593 Eddy St, APC 701, Providence, RI 02903; Department of Computer Science, Brown University, Providence, RI (J.V., M.P.D., Y.H.K., S.S.S., H.J.T., A.W., H.L.C.W., C.E., U.C.); and the Norman Prince Neuroscience Institute, Rhode Island Hospital, Providence, RI (M.J., R.A.M.)
| | - Justin Vasquez
- From the Departments of Diagnostic Imaging (M.T.S., M.J., J.L.B., G.L.B., R.A.M.), Diagnostic Imaging (A.D.Y.), and Neurosurgery (M.J., R.A.M.), Warren Alpert School of Medicine at Brown University, Rhode Island Hospital, 593 Eddy St, APC 701, Providence, RI 02903; Department of Computer Science, Brown University, Providence, RI (J.V., M.P.D., Y.H.K., S.S.S., H.J.T., A.W., H.L.C.W., C.E., U.C.); and the Norman Prince Neuroscience Institute, Rhode Island Hospital, Providence, RI (M.J., R.A.M.)
| | - Mary P Dong
- From the Departments of Diagnostic Imaging (M.T.S., M.J., J.L.B., G.L.B., R.A.M.), Diagnostic Imaging (A.D.Y.), and Neurosurgery (M.J., R.A.M.), Warren Alpert School of Medicine at Brown University, Rhode Island Hospital, 593 Eddy St, APC 701, Providence, RI 02903; Department of Computer Science, Brown University, Providence, RI (J.V., M.P.D., Y.H.K., S.S.S., H.J.T., A.W., H.L.C.W., C.E., U.C.); and the Norman Prince Neuroscience Institute, Rhode Island Hospital, Providence, RI (M.J., R.A.M.)
| | - Yun Ho Kim
- From the Departments of Diagnostic Imaging (M.T.S., M.J., J.L.B., G.L.B., R.A.M.), Diagnostic Imaging (A.D.Y.), and Neurosurgery (M.J., R.A.M.), Warren Alpert School of Medicine at Brown University, Rhode Island Hospital, 593 Eddy St, APC 701, Providence, RI 02903; Department of Computer Science, Brown University, Providence, RI (J.V., M.P.D., Y.H.K., S.S.S., H.J.T., A.W., H.L.C.W., C.E., U.C.); and the Norman Prince Neuroscience Institute, Rhode Island Hospital, Providence, RI (M.J., R.A.M.)
| | - Sumera S Subzwari
- From the Departments of Diagnostic Imaging (M.T.S., M.J., J.L.B., G.L.B., R.A.M.), Diagnostic Imaging (A.D.Y.), and Neurosurgery (M.J., R.A.M.), Warren Alpert School of Medicine at Brown University, Rhode Island Hospital, 593 Eddy St, APC 701, Providence, RI 02903; Department of Computer Science, Brown University, Providence, RI (J.V., M.P.D., Y.H.K., S.S.S., H.J.T., A.W., H.L.C.W., C.E., U.C.); and the Norman Prince Neuroscience Institute, Rhode Island Hospital, Providence, RI (M.J., R.A.M.)
| | - Harold J Triedman
- From the Departments of Diagnostic Imaging (M.T.S., M.J., J.L.B., G.L.B., R.A.M.), Diagnostic Imaging (A.D.Y.), and Neurosurgery (M.J., R.A.M.), Warren Alpert School of Medicine at Brown University, Rhode Island Hospital, 593 Eddy St, APC 701, Providence, RI 02903; Department of Computer Science, Brown University, Providence, RI (J.V., M.P.D., Y.H.K., S.S.S., H.J.T., A.W., H.L.C.W., C.E., U.C.); and the Norman Prince Neuroscience Institute, Rhode Island Hospital, Providence, RI (M.J., R.A.M.)
| | - Amy Wang
- From the Departments of Diagnostic Imaging (M.T.S., M.J., J.L.B., G.L.B., R.A.M.), Diagnostic Imaging (A.D.Y.), and Neurosurgery (M.J., R.A.M.), Warren Alpert School of Medicine at Brown University, Rhode Island Hospital, 593 Eddy St, APC 701, Providence, RI 02903; Department of Computer Science, Brown University, Providence, RI (J.V., M.P.D., Y.H.K., S.S.S., H.J.T., A.W., H.L.C.W., C.E., U.C.); and the Norman Prince Neuroscience Institute, Rhode Island Hospital, Providence, RI (M.J., R.A.M.)
| | - Hsin-Lei Charlene Wang
- From the Departments of Diagnostic Imaging (M.T.S., M.J., J.L.B., G.L.B., R.A.M.), Diagnostic Imaging (A.D.Y.), and Neurosurgery (M.J., R.A.M.), Warren Alpert School of Medicine at Brown University, Rhode Island Hospital, 593 Eddy St, APC 701, Providence, RI 02903; Department of Computer Science, Brown University, Providence, RI (J.V., M.P.D., Y.H.K., S.S.S., H.J.T., A.W., H.L.C.W., C.E., U.C.); and the Norman Prince Neuroscience Institute, Rhode Island Hospital, Providence, RI (M.J., R.A.M.)
| | - Anthony D Yao
- From the Departments of Diagnostic Imaging (M.T.S., M.J., J.L.B., G.L.B., R.A.M.), Diagnostic Imaging (A.D.Y.), and Neurosurgery (M.J., R.A.M.), Warren Alpert School of Medicine at Brown University, Rhode Island Hospital, 593 Eddy St, APC 701, Providence, RI 02903; Department of Computer Science, Brown University, Providence, RI (J.V., M.P.D., Y.H.K., S.S.S., H.J.T., A.W., H.L.C.W., C.E., U.C.); and the Norman Prince Neuroscience Institute, Rhode Island Hospital, Providence, RI (M.J., R.A.M.)
| | - Mahesh Jayaraman
- From the Departments of Diagnostic Imaging (M.T.S., M.J., J.L.B., G.L.B., R.A.M.), Diagnostic Imaging (A.D.Y.), and Neurosurgery (M.J., R.A.M.), Warren Alpert School of Medicine at Brown University, Rhode Island Hospital, 593 Eddy St, APC 701, Providence, RI 02903; Department of Computer Science, Brown University, Providence, RI (J.V., M.P.D., Y.H.K., S.S.S., H.J.T., A.W., H.L.C.W., C.E., U.C.); and the Norman Prince Neuroscience Institute, Rhode Island Hospital, Providence, RI (M.J., R.A.M.)
| | - Jerrold L Boxerman
- From the Departments of Diagnostic Imaging (M.T.S., M.J., J.L.B., G.L.B., R.A.M.), Diagnostic Imaging (A.D.Y.), and Neurosurgery (M.J., R.A.M.), Warren Alpert School of Medicine at Brown University, Rhode Island Hospital, 593 Eddy St, APC 701, Providence, RI 02903; Department of Computer Science, Brown University, Providence, RI (J.V., M.P.D., Y.H.K., S.S.S., H.J.T., A.W., H.L.C.W., C.E., U.C.); and the Norman Prince Neuroscience Institute, Rhode Island Hospital, Providence, RI (M.J., R.A.M.)
| | - Carsten Eickhoff
- From the Departments of Diagnostic Imaging (M.T.S., M.J., J.L.B., G.L.B., R.A.M.), Diagnostic Imaging (A.D.Y.), and Neurosurgery (M.J., R.A.M.), Warren Alpert School of Medicine at Brown University, Rhode Island Hospital, 593 Eddy St, APC 701, Providence, RI 02903; Department of Computer Science, Brown University, Providence, RI (J.V., M.P.D., Y.H.K., S.S.S., H.J.T., A.W., H.L.C.W., C.E., U.C.); and the Norman Prince Neuroscience Institute, Rhode Island Hospital, Providence, RI (M.J., R.A.M.)
| | - Ugur Cetintemel
- From the Departments of Diagnostic Imaging (M.T.S., M.J., J.L.B., G.L.B., R.A.M.), Diagnostic Imaging (A.D.Y.), and Neurosurgery (M.J., R.A.M.), Warren Alpert School of Medicine at Brown University, Rhode Island Hospital, 593 Eddy St, APC 701, Providence, RI 02903; Department of Computer Science, Brown University, Providence, RI (J.V., M.P.D., Y.H.K., S.S.S., H.J.T., A.W., H.L.C.W., C.E., U.C.); and the Norman Prince Neuroscience Institute, Rhode Island Hospital, Providence, RI (M.J., R.A.M.)
| | - Grayson L Baird
- From the Departments of Diagnostic Imaging (M.T.S., M.J., J.L.B., G.L.B., R.A.M.), Diagnostic Imaging (A.D.Y.), and Neurosurgery (M.J., R.A.M.), Warren Alpert School of Medicine at Brown University, Rhode Island Hospital, 593 Eddy St, APC 701, Providence, RI 02903; Department of Computer Science, Brown University, Providence, RI (J.V., M.P.D., Y.H.K., S.S.S., H.J.T., A.W., H.L.C.W., C.E., U.C.); and the Norman Prince Neuroscience Institute, Rhode Island Hospital, Providence, RI (M.J., R.A.M.)
| | - Ryan A McTaggart
- From the Departments of Diagnostic Imaging (M.T.S., M.J., J.L.B., G.L.B., R.A.M.), Diagnostic Imaging (A.D.Y.), and Neurosurgery (M.J., R.A.M.), Warren Alpert School of Medicine at Brown University, Rhode Island Hospital, 593 Eddy St, APC 701, Providence, RI 02903; Department of Computer Science, Brown University, Providence, RI (J.V., M.P.D., Y.H.K., S.S.S., H.J.T., A.W., H.L.C.W., C.E., U.C.); and the Norman Prince Neuroscience Institute, Rhode Island Hospital, Providence, RI (M.J., R.A.M.)
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Kim BS, Kang J, Jun S, Kim H, Pak K, Kim GH, Heo HJ, Kim YH. Association between immunotherapy biomarkers and glucose metabolism from F-18 FDG PET. Eur Rev Med Pharmacol Sci 2020; 24:8288-8295. [PMID: 32894535 DOI: 10.26355/eurrev_202008_22625] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To assess associations between parameters derived from F-18 fluorodeoxyglucose (FDG) positron emission tomography (PET) and mRNA expression levels of immune checkpoint biomarkers such as programmed death receptor 1 (PD-1), programmed death-ligand 1 (PD-L1), cytotoxic T-lymphocyte antigen 4 (CTLA-4) as well as tumor mutation burden (TMB) in non-small cell lung cancer (NSCLC) patients. PATIENTS AND METHODS Integrated data were downloaded from Genomic Data Common Data Portal. Clinical, mRNA-seq, and whole exome-seq data of lung adenocarcinoma and squamous cell carcinoma from The Cancer Genome Atlas (TCGA) database were analyzed. TMB was defined as the total number of somatic missense mutations per megabase of the genome examined. Expression levels of PD-1, PD-L1, CTLA4 mRNA and TMB were collected. Correlations between imaging parameters of glucose metabolism and the expression levels of genomic biomarkers from cancers were evaluated. Bonferroni correction (adjusted p<0.0027) was applied to reduce type 1 error. RESULTS Of 31 NSCLC cases, 11 cases were adenocarcinoma (LUAD) and 20 were squamous cell carcinoma (LUSC). In linear regression analysis, texture parameters such as low gray-level run emphasis (LGRE, R2=0.48, p<0.0001), short run low gray-level emphasis (SRLGE, R2=0.45, p<0.0001) and long run low gray-level emphasis (LRLGE, R2=0.41, p=0.0001) derived from gray-level run length matrix (GLRLM) showed remarkable correlation with PD-L1 mRNA expression. Expression of PD-1, CTLA-4, and TMB failed to show any significant correlation with parameters of the F-18 FDG PET/CT. CONCLUSIONS Texture parameters derived from PET, known to indicate glucose uptake distribution, were correlated with expression of PD-L1 mRNA but not with expression of PD-1, CTLA-4 and TMB. Thus, tumoral heterogeneity could be a surrogate marker for the identification of PD-L1 level in NSCLC.
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Affiliation(s)
- B S Kim
- Department of Nuclear Medicine, Kosin University Gospel Hospital, University of Kosin College of Medicine, Busan, Republic of Korea.
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Mărginean N, Little D, Tsunoda Y, Leoni S, Janssens RVF, Fornal B, Otsuka T, Michelagnoli C, Stan L, Crespi FCL, Costache C, Lica R, Sferrazza M, Turturica A, Ayangeakaa AD, Auranen K, Barani M, Bender PC, Bottoni S, Boromiza M, Bracco A, Călinescu S, Campbell CM, Carpenter MP, Chowdhury P, Ciemała M, Cieplicka-Oryǹczak N, Cline D, Clisu C, Crawford HL, Dinescu IE, Dudouet J, Filipescu D, Florea N, Forney AM, Fracassetti S, Gade A, Gheorghe I, Hayes AB, Harca I, Henderson J, Ionescu A, Iskra ŁW, Jentschel M, Kandzia F, Kim YH, Kondev FG, Korschinek G, Köster U, Krzysiek M, Lauritsen T, Li J, Mărginean R, Maugeri EA, Mihai C, Mihai RE, Mitu A, Mutti P, Negret A, Niţă CR, Olăcel A, Oprea A, Pascu S, Petrone C, Porzio C, Rhodes D, Seweryniak D, Schumann D, Sotty C, Stolze SM, Şuvăilă R, Toma S, Ujeniuc S, Walters WB, Wu CY, Wu J, Zhu S, Ziliani S. Shape Coexistence at Zero Spin in ^{64}Ni Driven by the Monopole Tensor Interaction. Phys Rev Lett 2020; 125:102502. [PMID: 32955302 DOI: 10.1103/physrevlett.125.102502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 07/31/2020] [Indexed: 06/11/2023]
Abstract
The low-spin structure of the semimagic ^{64}Ni nucleus has been considerably expanded: combining four experiments, several 0^{+} and 2^{+} excited states were identified below 4.5 MeV, and their properties established. The Monte Carlo shell model accounts for the results and unveils an unexpectedly complex landscape of coexisting shapes: a prolate 0^{+} excitation is located at a surprisingly high energy (3463 keV), with a collective 2^{+} state 286 keV above it, the first such observation in Ni isotopes. The evolution in excitation energy of the prolate minimum across the neutron N=40 subshell gap highlights the impact of the monopole interaction and its variation in strength with N.
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Affiliation(s)
- N Mărginean
- Horia Hulubei National Institute of Physics and Nuclear Engineering-IFIN HH, Bucharest 077125, Romania
| | - D Little
- Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3255, USA
- Triangle Universities Nuclear Laboratory, Duke University, Durham, North Carolina 27708-2308, USA
| | - Y Tsunoda
- Center for Nuclear Study, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - S Leoni
- Dipartimento di Fisica, Universitá degli Studi di Milano, I-20133 Milano, Italy
- INFN sezione di Milano via Celoria 16, 20133 Milano, Italy
| | - R V F Janssens
- Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3255, USA
- Triangle Universities Nuclear Laboratory, Duke University, Durham, North Carolina 27708-2308, USA
| | - B Fornal
- Institute of Nuclear Physics, PAN, 31-342 Kraków, Poland
| | - T Otsuka
- Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- KU Leuven, Instituut voor Kern- en Stralingsfysica, 3000 Leuven, Belgium
| | - C Michelagnoli
- Institut Laue-Langevin (ILL), 71 Avenue des Martyrs, 38042 Grenoble, France
| | - L Stan
- Horia Hulubei National Institute of Physics and Nuclear Engineering-IFIN HH, Bucharest 077125, Romania
| | - F C L Crespi
- Dipartimento di Fisica, Universitá degli Studi di Milano, I-20133 Milano, Italy
- INFN sezione di Milano via Celoria 16, 20133 Milano, Italy
| | - C Costache
- Horia Hulubei National Institute of Physics and Nuclear Engineering-IFIN HH, Bucharest 077125, Romania
| | - R Lica
- Horia Hulubei National Institute of Physics and Nuclear Engineering-IFIN HH, Bucharest 077125, Romania
| | - M Sferrazza
- Département de Physique, Université libre de Bruxelles, B-1050 Bruxelles, Belgium
| | - A Turturica
- Horia Hulubei National Institute of Physics and Nuclear Engineering-IFIN HH, Bucharest 077125, Romania
| | - A D Ayangeakaa
- Department of Physics, United States Naval Academy, Annapolis, Maryland 21402, USA
| | - K Auranen
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - M Barani
- Dipartimento di Fisica, Universitá degli Studi di Milano, I-20133 Milano, Italy
- INFN sezione di Milano via Celoria 16, 20133 Milano, Italy
- Institut Laue-Langevin (ILL), 71 Avenue des Martyrs, 38042 Grenoble, France
| | - P C Bender
- Department of Physics and Applied Physics, University of Massachusetts Lowell, Lowell, Massachusetts 01854, USA
| | - S Bottoni
- Dipartimento di Fisica, Universitá degli Studi di Milano, I-20133 Milano, Italy
- INFN sezione di Milano via Celoria 16, 20133 Milano, Italy
| | - M Boromiza
- Horia Hulubei National Institute of Physics and Nuclear Engineering-IFIN HH, Bucharest 077125, Romania
| | - A Bracco
- Dipartimento di Fisica, Universitá degli Studi di Milano, I-20133 Milano, Italy
- INFN sezione di Milano via Celoria 16, 20133 Milano, Italy
| | - S Călinescu
- Horia Hulubei National Institute of Physics and Nuclear Engineering-IFIN HH, Bucharest 077125, Romania
| | - C M Campbell
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - M P Carpenter
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - P Chowdhury
- Department of Physics and Applied Physics, University of Massachusetts Lowell, Lowell, Massachusetts 01854, USA
| | - M Ciemała
- Institute of Nuclear Physics, PAN, 31-342 Kraków, Poland
| | | | - D Cline
- Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
| | - C Clisu
- Horia Hulubei National Institute of Physics and Nuclear Engineering-IFIN HH, Bucharest 077125, Romania
| | - H L Crawford
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - I E Dinescu
- Horia Hulubei National Institute of Physics and Nuclear Engineering-IFIN HH, Bucharest 077125, Romania
| | - J Dudouet
- Université Lyon 1, CNRS/IN2P3, IPN-Lyon, F-69622, Villeurbanne, France
| | - D Filipescu
- Horia Hulubei National Institute of Physics and Nuclear Engineering-IFIN HH, Bucharest 077125, Romania
| | - N Florea
- Horia Hulubei National Institute of Physics and Nuclear Engineering-IFIN HH, Bucharest 077125, Romania
| | - A M Forney
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, USA
| | - S Fracassetti
- Dipartimento di Fisica, Universitá degli Studi di Milano, I-20133 Milano, Italy
- INFN sezione di Milano via Celoria 16, 20133 Milano, Italy
| | - A Gade
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
| | - I Gheorghe
- Horia Hulubei National Institute of Physics and Nuclear Engineering-IFIN HH, Bucharest 077125, Romania
| | - A B Hayes
- National Nuclear Data Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - I Harca
- Horia Hulubei National Institute of Physics and Nuclear Engineering-IFIN HH, Bucharest 077125, Romania
| | - J Henderson
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - A Ionescu
- Horia Hulubei National Institute of Physics and Nuclear Engineering-IFIN HH, Bucharest 077125, Romania
| | - Ł W Iskra
- INFN sezione di Milano via Celoria 16, 20133 Milano, Italy
| | - M Jentschel
- Institut Laue-Langevin (ILL), 71 Avenue des Martyrs, 38042 Grenoble, France
| | - F Kandzia
- Institut Laue-Langevin (ILL), 71 Avenue des Martyrs, 38042 Grenoble, France
| | - Y H Kim
- Institut Laue-Langevin (ILL), 71 Avenue des Martyrs, 38042 Grenoble, France
| | - F G Kondev
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - G Korschinek
- Technische Universität München, 80333 München, Germany
| | - U Köster
- Institut Laue-Langevin (ILL), 71 Avenue des Martyrs, 38042 Grenoble, France
| | - M Krzysiek
- Institute of Nuclear Physics, PAN, 31-342 Kraków, Poland
| | - T Lauritsen
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - J Li
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - R Mărginean
- Horia Hulubei National Institute of Physics and Nuclear Engineering-IFIN HH, Bucharest 077125, Romania
| | - E A Maugeri
- Paul Scherrer Institut, 5232 Villigen, Switzerland
| | - C Mihai
- Horia Hulubei National Institute of Physics and Nuclear Engineering-IFIN HH, Bucharest 077125, Romania
| | - R E Mihai
- Horia Hulubei National Institute of Physics and Nuclear Engineering-IFIN HH, Bucharest 077125, Romania
| | - A Mitu
- Horia Hulubei National Institute of Physics and Nuclear Engineering-IFIN HH, Bucharest 077125, Romania
| | - P Mutti
- Institut Laue-Langevin (ILL), 71 Avenue des Martyrs, 38042 Grenoble, France
| | - A Negret
- Horia Hulubei National Institute of Physics and Nuclear Engineering-IFIN HH, Bucharest 077125, Romania
| | - C R Niţă
- Horia Hulubei National Institute of Physics and Nuclear Engineering-IFIN HH, Bucharest 077125, Romania
| | - A Olăcel
- Horia Hulubei National Institute of Physics and Nuclear Engineering-IFIN HH, Bucharest 077125, Romania
| | - A Oprea
- Horia Hulubei National Institute of Physics and Nuclear Engineering-IFIN HH, Bucharest 077125, Romania
| | - S Pascu
- Horia Hulubei National Institute of Physics and Nuclear Engineering-IFIN HH, Bucharest 077125, Romania
| | - C Petrone
- Horia Hulubei National Institute of Physics and Nuclear Engineering-IFIN HH, Bucharest 077125, Romania
| | - C Porzio
- Dipartimento di Fisica, Universitá degli Studi di Milano, I-20133 Milano, Italy
- INFN sezione di Milano via Celoria 16, 20133 Milano, Italy
| | - D Rhodes
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
| | - D Seweryniak
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - D Schumann
- Paul Scherrer Institut, 5232 Villigen, Switzerland
| | - C Sotty
- Horia Hulubei National Institute of Physics and Nuclear Engineering-IFIN HH, Bucharest 077125, Romania
| | - S M Stolze
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - R Şuvăilă
- Horia Hulubei National Institute of Physics and Nuclear Engineering-IFIN HH, Bucharest 077125, Romania
| | - S Toma
- Horia Hulubei National Institute of Physics and Nuclear Engineering-IFIN HH, Bucharest 077125, Romania
| | - S Ujeniuc
- Horia Hulubei National Institute of Physics and Nuclear Engineering-IFIN HH, Bucharest 077125, Romania
| | - W B Walters
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, USA
| | - C Y Wu
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - J Wu
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - S Zhu
- National Nuclear Data Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - S Ziliani
- Dipartimento di Fisica, Universitá degli Studi di Milano, I-20133 Milano, Italy
- INFN sezione di Milano via Celoria 16, 20133 Milano, Italy
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Ha M, Son YR, Kim J, Park SM, Hong CM, Choi D, Kang W, Kim JH, Lee KJ, Park D, Han ME, Oh SO, Lee D, Kim YH. TEK is a novel prognostic marker for clear cell renal cell carcinoma. Eur Rev Med Pharmacol Sci 2020; 23:1451-1458. [PMID: 30840266 DOI: 10.26355/eurrev_201902_17102] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Clear cell renal cell carcinoma (ccRCC) is the most common type of kidney cancer. However, effective therapeutics for ccRCC are lacking. Novel biomarkers could provide critical information when determining prognoses for patients with ccRCC. In this study, we sought to determine if the expression of receptor tyrosine kinase (TEK) could be a potential novel prognostic biomarker for ccRCC. TEK, originally identified as an endothelial cell-specific receptor, plays an important role in the modulation of vasculogenesis and remodeling. Altered TEK expression has been observed in tumor tissues (e.g., oral squamous cell carcinomas, leukemia) and breast, gastric and thyroid cancers. However, the role of TEK in ccRCC remains unknown. PATIENTS AND METHODS Differential TEK expression between non-metastatic (stage M0) and metastatic (stage M1) ccRCC patient cohorts was determined from The Cancer Genome Atlas (TCGA) and the International Cancer Genome Consortium (ICGC). Furthermore, TEK expression was assessed as a prognostic factor using the time-dependent area under the curve (AUC) of Uno's C-index, the AUC value of the receiver operating characteristics (ROC) at 5 years, Kaplan-Meier survival curves and multivariate analyses. RESULTS A Kaplan-Meier curve analysis revealed that the downregulation of TEK expression was associated with a poor prognosis for patients with ccRCC with good discrimination (p<0.0001 and p=0.0044 for the TGCA and ICGC cohorts, respectively). Analyses of C-indices and receiver operating characteristic AUC values further support this discriminative ability. Moreover, multivariate analyses showed the prognostic significance of TEK expression levels (p<0.001). CONCLUSIONS Although additional clinical investigations will be needed, our results suggest that TEK is a potential biomarker for ccRCC.
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Affiliation(s)
- M Ha
- Department of Anatomy, Pusan National University School of Medicine, Yangsan, Republic of Korea.
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Choi SJ, Kwak DW, Kil K, Kim SC, Kwon JY, Kim YH, Na S, Bae JG, Cha HH, Shim JY, Oh KY, Lee KA, Kim SM, Cho IA, Lee SM, Cho GJ, Jo YS, Choi GY, Choi SK, Hur SE, Hwang HS, Kim YJ. Vaginal compared with intramuscular progestogen for preventing preterm birth in high-risk pregnant women (VICTORIA study): a multicentre, open-label randomised trial and meta-analysis. BJOG 2020; 127:1646-1654. [PMID: 32536019 DOI: 10.1111/1471-0528.16365] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/02/2020] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To compare the efficacy of two types of progestogen therapy for preventing preterm birth (PTB) and to review the relevant literature. DESIGN A multicentre, randomised, open-label, equivalence trial and a meta-analysis. SETTING Tertiary referral hospitals in South Korea. POPULATION Pregnant women with a history of spontaneous PTB or short cervical length (<25 mm). METHODS Eligible women were screened and randomised at 16-22 weeks of gestation to receive either 200 mg of vaginal micronised progesterone daily (vaginal group) or an intramuscular injection of 250 mg 17α-hydroxyprogesterone caproate weekly (IM group). Stratified randomisation was carried out according to participating centres and indications for progestogen therapy. This trial was registered at ClinicalTrials.gov (NCT02304237). MAIN OUTCOME MEASURE Preterm birth (PTB) before 37 weeks of gestation. RESULTS A total of 266 women were randomly assigned and a total of 247 women (119 and 128 women in the vaginal and IM groups, respectively) were available for the intention-to-treat analysis. Risks of PTB before 37 weeks of gestation did not significantly differ between the two groups (22.7 versus 25.8%, P = 0.571). The difference in PTB risk between the two groups was 3.1% (95% CI -7.6 to 13.8%), which was within the equivalence margin of 15%. The meta-analysis results showed no significant differences in the risk of PTB between the vaginal and IM progestogen treatments. CONCLUSION Compared with vaginal progesterone, treatment with intramuscular progestin might increase the risk of PTB before 37 weeks of gestation by as much as 13.8%, or reduce the risk by as much as 7.6%, in women with a history of spontaneous PTB or with short cervical length. TWEETABLE ABSTRACT Vaginal and intramuscular progestogen showed equivalent efficacy for preventing preterm birth before 37 weeks of gestation.
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Affiliation(s)
- S-J Choi
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - D W Kwak
- Ajou University School of Medicine, Suwon, Korea
| | - K Kil
- Yeouido St Mary's Hospital, The Catholic University of Korea, Seoul, Korea
| | - S-C Kim
- Pusan National University College of Medicine, Pusan, Korea
| | - J-Y Kwon
- Institute of Women's Life Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - Y H Kim
- Chonnam National University Medical School, Gwangju, Korea
| | - S Na
- Kangwon National University Hospital, School of Medicine Kangwon National University, Chuncheon, Korea
| | - J-G Bae
- Keimyung University School of Medicine, Daegu, Korea
| | - H-H Cha
- Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - J-Y Shim
- Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - K Y Oh
- School of Medicine, Eulji University, Daejeon, Korea
| | - K A Lee
- Kyung Hee University School of Medicine, Seoul, Korea
| | - S M Kim
- Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - I A Cho
- Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, Korea
| | - S M Lee
- Seoul National University College of Medicine, Seoul, Korea
| | - G J Cho
- Korea University College of Medicine, Seoul, Korea
| | - Y S Jo
- St Vincent's Hospital, College of Medicine, The Catholic University of Korea, Suwon, Korea
| | - G Y Choi
- Soonchunhyang University Seoul Hospital, College of Medicine, Soonchunhyang University, Seoul, Korea
| | - S K Choi
- College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - S E Hur
- Konyang University Hospital, Daejeon, Korea
| | - H S Hwang
- Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
| | - Y J Kim
- College of Medicine, Ewha Womans University, Seoul, Korea
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Singh JP, Park JY, Singh V, Kim SH, Lim WC, Kumar H, Kim YH, Lee S, Chae KH. Correlating the size and cation inversion factor in context of magnetic and optical behavior of CoFe 2O 4 nanoparticles. RSC Adv 2020; 10:21259-21269. [PMID: 35518780 PMCID: PMC9054365 DOI: 10.1039/d0ra01653e] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 05/26/2020] [Indexed: 12/20/2022] Open
Abstract
Herein, the size dependent behavior of cobalt ferrite nanoparticles was investigated using synchrotron radiation based techniques. Scanning electron micrographs revealed the enhancement of particle/crystallite size with increase of annealing temperature. Moreover, the shape of these particles also changed with increase of crystallite size. Saturation magnetization increased with increase of crystallite size. The higher saturation magnetization for larger crystallite size nanoparticles was attributed to a cation distribution similar to that of bulk CoFe2O4. The optical band-gap of these nanoparticles decreased from 1.9 eV to 1.7 eV with increase of crystallite size. The enhancement of the optical band-gap for smaller crystallites was due to phenomena of optical confinement occurring in the nanoparticles. Fe L Co L-edge near edge extended X-ray absorption fine structure (NEXAFS) measurements showed that Fe and Co ions remain in the 3+ and 2+ state in these nanoparticles. The results obtained from Fe & Co K-edge X-ray absorption near edge structure (XANES)-imaging experiments further revealed that this oxidation state was possessed by even the crystallites. Extended X-ray absorption fine structure (EXAFS) measurements revealed distribution of Fe and Co ions among tetrahedral (A) and octahedral (B) sites of the spinel structure which corroborates the results obtained from Rietveld refinement of X-ray diffraction patterns (XRD). X-ray magnetic circular di-chroism (XMCD) measurements revealed negative exchange interaction among the ions situated in tetrahedral (A) and octahedral (B) sites. Theoretical and experimental calculated magnetic moments revealed the dominancy of size effects rather than the cation redistribution in the spinel lattice of CoFe2O4 nanoparticles.
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Affiliation(s)
- Jitendra Pal Singh
- Pohang Accelerator Lab, Pohang University of Science and Technology Pohang 37673 Republic of Korea
| | - Jae Yeon Park
- Radiation Equipment Research Division, Korea Atomic Energy Research Institute Jeongup 56212 Republic of Korea
| | - Varsha Singh
- Advanced Analysis Center, Korea Institute of Science and Technology Seoul 02792 Republic of Korea
| | - So Hee Kim
- Advanced Analysis Center, Korea Institute of Science and Technology Seoul 02792 Republic of Korea
| | - Weon Cheol Lim
- Advanced Analysis Center, Korea Institute of Science and Technology Seoul 02792 Republic of Korea
| | - Hemaunt Kumar
- Department of Applied Sciences, Rajkiya Engineering College Bijnor-246725 India
| | - Y H Kim
- Pohang Accelerator Lab, Pohang University of Science and Technology Pohang 37673 Republic of Korea
| | - Sangsul Lee
- Pohang Accelerator Lab, Pohang University of Science and Technology Pohang 37673 Republic of Korea
- Xavisoptics Ltd. Pohang 37673 Republic of Korea
| | - Keun Hwa Chae
- Advanced Analysis Center, Korea Institute of Science and Technology Seoul 02792 Republic of Korea
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Tetsuno K, Ajimura S, Akutagawa K, Batpurev T, Chan WM, Fushimi K, Hazama R, Iida T, Ikeyama Y, Khai BT, Kishimoto T, Lee KK, Li X, Matsuoka K, Matsuoka K, Mizukoshi K, Mori Y, Nakajima K, Noithong P, Nomachi M, Ogawa I, Ohsumi H, Ozawa K, Shimizu K, Shokati M, Soberi F, Suzuki K, Takemoto Y, Takihira Y, Tamagawa Y, Tozawa M, Trang VTT, Umehara S, Yamamoto K, Yoshida S, Kim I, Kwon DH, Kim HL, Lee HJ, Lee MK, Kim YH. Status of 48Ca double beta decay search and its future prospect in CANDLES. ACTA ACUST UNITED AC 2020. [DOI: 10.1088/1742-6596/1468/1/012132] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Lee SH, Park JS, Kim SY, Kim DS, Kim YW, Chung MP, Uh ST, Park CS, Park SW, Jeong SH, Park YB, Lee HL, Shin JW, Lee JH, Jegal Y, Lee HK, Kim YH, Song JW, Park MS. Clinical features and prognosis of patients with idiopathic pulmonary fibrosis and chronic obstructive pulmonary disease. Int J Tuberc Lung Dis 2020; 23:678-684. [PMID: 31315699 DOI: 10.5588/ijtld.18.0194] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
<sec> <title>BACKGROUND</title> Idiopathic pulmonary fibrosis (IPF) and chronic obstructive pulmonary disease (COPD) share common risk factors. They could therefore be expressed in a single patient. However, the prevalence, clinical characteristics and prognosis of individuals with comorbid IPF and COPD are not known. </sec> <sec> <title>METHOD</title> From 2003 to 2007, the Korean Interstitial Lung Disease Study Group created a register for idiopathic interstitial pneumonia using 2002 ATS/ERS (American Thoracic Society/European Respiratory Society) criteria. Of the 1546 IPF patients assessed, 143 had decreased lung function consistent with COPD (IPF-COPD). COPD was diagnosed based on age (≥40 years) and pulmonary function (forced expiratory volume in 1 sec [FEV1]/forced vital capacity [FVC] ratio < 0.7). </sec> <sec> <title>RESULTS</title> The median age of the IPF-COPD group was 71.0 years (interquartile range 66.0-76.0); most patients were male (88.1%). FVC (%) was significantly higher in the IPF-COPD group; however, FEV1 (%) was significantly lower in the IPF-COPD group (P < 0.001). Diffusing capacity of the lung for carbon monoxide (DLCO) was not significantly different between the two groups. In survival analysis, age and FVC (%), but not COPD, were significantly associated with prognosis (respectively P = 0.003, 0.001 and 0.401). COPD severity was also not related to prognosis (P = 0.935). </sec> <sec> <title>CONCLUSION</title> The prevalence of IPF-COPD was estimated to be ∼9.2% among all IPF patients; prognosis of patients with IPF-COPD was not worse than those with IPF alone. </sec>.
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Affiliation(s)
- S H Lee
- Yonsei University College of Medicine, Seoul, Department of Internal Medicine, National University College of Medicine, Division of Pulmonary and Critical Care Medicine, Seoul National University Bundang Hospital, Seoul
| | - J S Park
- Department of Internal Medicine, National University College of Medicine, Division of Pulmonary and Critical Care Medicine, Seoul National University Bundang Hospital, Seoul
| | - S Y Kim
- Division of Pulmonology, Department of Internal Medicine, Severance Hospital, Institute of Chest Diseases, Yonsei University College of Medicine, Seoul
| | - D S Kim
- Division of Pulmonary and Critical Care Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul
| | - Y W Kim
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine and Lung Institute, Seoul National University College of Medicine, Seoul
| | - M P Chung
- Division of Pulmonary and Critical Care Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul
| | - S T Uh
- Division of Allergy and Respiratory Medicine, Department of Internal Medicine, Soonchunhyang University Seoul Hospital, Seoul
| | - C S Park
- Division of Allergy and Respiratory Medicine, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Gyeonggi-do
| | - S W Park
- Division of Allergy and Respiratory Medicine, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Gyeonggi-do
| | - S H Jeong
- Division of Pulmonology, Department of Internal Medicine, Gachon University Gil Medical Center, Incheon
| | - Y B Park
- Division of Pulmonary, Allergy & Critical Care Medicine, Department of Internal Medicine, Hallym University Kangdong Sacred Heart Hospital, Seoul
| | - H L Lee
- Pulmonary Division, Department of Internal Medicine, Inha University Hospital, Incheon
| | - J W Shin
- Division of Pulmonary Medicine, Department of Internal Medicine, Chung Ang University College of Medicine, Seoul
| | - J H Lee
- Department of Internal Medicine, Ewha Womans University School of Medicine, Ewha Medical Research Institute, Seoul
| | - Y Jegal
- Division of Pulmonary Medicine, Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan
| | - H K Lee
- Division of Critical Care and Pulmonary Medicine, Department of Internal Medicine, Inje University Pusan Paik Hospital, Busan
| | - Y H Kim
- Division of Allergy and Pulmonology, Department of Internal Medicine, Bucheon St Mary's Hospital, The Catholic University of Korea School of Medicine, Seoul, South Korea
| | - J W Song
- Division of Pulmonary and Critical Care Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul
| | - M S Park
- Division of Pulmonology, Department of Internal Medicine, Severance Hospital, Institute of Chest Diseases, Yonsei University College of Medicine, Seoul
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Meaney KD, Kim YH, Geppert-Kleinrath H, Herrmann HW, Hopkins LB, Hoffman NM. Diagnostic signature of the compressibility of the inertial-confinement-fusion pusher. Phys Rev E 2020; 101:023208. [PMID: 32168628 DOI: 10.1103/physreve.101.023208] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 02/06/2020] [Indexed: 11/07/2022]
Abstract
Carbon shell areal density measurements from many types of inertial confinement fusion implosions at the National Ignition Facility (NIF) demonstrate that the final state of the outside portion of the shell is set primarily by capsule coast time, the coasting period between main laser shut off and peak fusion output. However, the fuel areal density does not correlate with the increasing carbon compression. While two-dimensional (2D) radiation-hydrodynamic simulations successfully capture the carbon compression, energy must be added to the simulated fuel-ice layer to reproduce fuel areal density measurements. The data presented demonstrates that the degradation mechanisms that reduce the compressibility of the fuel do not reduce the compressibility of the ablator.
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Affiliation(s)
- K D Meaney
- Los Alamos National Laboratory, Los Alamos, New Mexico, 87545, USA
| | - Y H Kim
- Los Alamos National Laboratory, Los Alamos, New Mexico, 87545, USA
| | | | - H W Herrmann
- Los Alamos National Laboratory, Los Alamos, New Mexico, 87545, USA
| | - L Berzak Hopkins
- Lawerence Livermore National Laboratory, Livermore, California, 94550, USA
| | - N M Hoffman
- Los Alamos National Laboratory, Los Alamos, New Mexico, 87545, USA
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Yang K, Kang YY, Ahn HJ, Kim DG, Park NK, Choi SQ, Won JC, Kim YH. Porous boron nitride/polyimide composite films with high thermal diffusivity and low dielectric properties via high internal phase Pickering emulsion method. J IND ENG CHEM 2020. [DOI: 10.1016/j.jiec.2019.10.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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47
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Seo M, Won CW, Kim S, Yoo JH, Kim YH, Kim BS. The Association of Gait Speed and Frontal Lobe among Various Cognitive Domains: The Korean Frailty and Aging Cohort Study (KFACS). J Nutr Health Aging 2020; 24:91-97. [PMID: 31886814 DOI: 10.1007/s12603-019-1276-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE The aim of this study was to determine how gait speed and frontal lobe functionsin community-dwelling older adults in Korea. DESIGN This was a cross-sectional study. SETTING The study used data from the Korean Frailty and Aging Cohort Survey (KFACS), a multi-center longitudinal study addressing 10 centers across urban, rural, and suburban communities in Korea, between 2016 and 2017. PARTICIPANTS A total of 1552 older adults who underwent both gait speed tests and cognitive functions tests during the investigation of the KFACS. MEASUREMENTS Gait speed was assessed by asking participants to walk from a starting point to a point 4 meters away at a normal gait. Cognitive functions were evaluated using various standardized cognitive functions tests. RESULTS Gait speed was slower when participants were older or less educated The percentage of women, higher BMI, people with lower incomes, singles, smokers, and drinkers was high in the slower gait group. Also, all cognitive function scores were low and depression score was high in the group with slower walking speed. The slower walking speed showed low physical activity score and high prevalence of hypertension, osteoarthritis and osteoporosis. Among the seven cognitive functions (MMSE, memory, TMT, Recall, Recognition, digit span, and Fab), only TMT showed no significant difference between different gait speed groups. The other six cognitive functions showed higher results in the fastest gait speed group (T3), Participants in middle gait speed group (T2) also showed higher results in five of the seven cognitive function scores as well (Memory, Recall, Recognition, digit span, and Fab). CONCLUSION In this study, we found correlation between the slower gait speeds and the decrease in cognitive function, and especially the frontal lobe dysfunction was most prominent of all cognitive dysfunctions.
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Affiliation(s)
- M Seo
- B.S. Kim, Kyunghee hospital, Republic of Korea,+82-10-8232-8696, FAX: +82-2-958-8699,
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48
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Park H, Yoo S, Ahn H, Bang J, Jeong Y, Yi M, Won JC, Jung S, Kim YH. Low-Temperature Solution-Processed Soluble Polyimide Gate Dielectrics: From Molecular-Level Design to Electrically Stable and Flexible Organic Transistors. ACS Appl Mater Interfaces 2019; 11:45949-45958. [PMID: 31738047 DOI: 10.1021/acsami.9b14041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Aromatic soluble polyimides (PIs) have been widely used in organic field-effect transistors (OFETs) as gate dielectric layers due to their promising features such as outstanding chemical resistance, thermal stability, low-temperature processability, and mechanical flexibility. However, the molecular structures of soluble PIs on the electrical characteristics of OFETs are not yet fully understood. In this work, the material, dielectric, and electrical properties are evaluated to systematically investigate the chemical structure effect of aromatic dianhydride and diamine monomers on the device performance. Four soluble PIs based on 4,4'-(Hexafluoroisopropylidene)diphthalic anhydride (6FDA) and 5-(2,5-Dioxotetrahydrofuryl)-3-methyl-3-cyclohexene-1,2-dicarboxylic anhydride, in which the monomeric precursors contain different backbones, side groups, and linkages, were employed to compare the chemical structure impact. The dielectric properties, which significantly affect the charge transport and crystallinity of OSC thin films, clearly depended on the soluble PI types as well as the surface energy and the thermal stability. Furthermore, the electrical characteristic measurement and parameter extraction of OFETs based on TIPS-pentacene revealed that the 6FDA-based soluble PIs, which lead to high field-effect mobility, near-zero threshold electric field, and outstanding electrical stability under bias stress, are the most promising gate dielectric candidates. Finally, low-temperature solution-processed OFETs are successfully integrated with ultrathin flexible substrates, and they exhibit no significant electrical performance loss after mechanical flexibility tests. This work presents a step forward in the development of soluble PI gate dielectrics for flexible electronic devices with high device performance.
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Affiliation(s)
- Hyunjin Park
- Advanced Materials Division , Korea Research Institute of Chemical Technology (KRICT) , Daejeon 34114 , Republic of Korea
| | - Sungmi Yoo
- Advanced Materials Division , Korea Research Institute of Chemical Technology (KRICT) , Daejeon 34114 , Republic of Korea
| | - Hyungju Ahn
- Pohang Accelerator Laboratory , Gyeongbuk 37673 , Republic of Korea
| | - Joohee Bang
- Pohang Accelerator Laboratory , Gyeongbuk 37673 , Republic of Korea
| | - Yuri Jeong
- Advanced Materials Division , Korea Research Institute of Chemical Technology (KRICT) , Daejeon 34114 , Republic of Korea
| | - Mihye Yi
- Advanced Materials Division , Korea Research Institute of Chemical Technology (KRICT) , Daejeon 34114 , Republic of Korea
| | - Jong Chan Won
- Advanced Materials Division , Korea Research Institute of Chemical Technology (KRICT) , Daejeon 34114 , Republic of Korea
- Chemical Convergence Materials and Processes, KRICT School , University of Science and Technology (UST) , Daejeon 34113 , Republic of Korea
| | - Sungjune Jung
- Department of Creative IT Engineering , Pohang University of Science and Technology (POSTECH) , Gyeongbuk 37673 , Republic of Korea
| | - Yun Ho Kim
- Advanced Materials Division , Korea Research Institute of Chemical Technology (KRICT) , Daejeon 34114 , Republic of Korea
- Chemical Convergence Materials and Processes, KRICT School , University of Science and Technology (UST) , Daejeon 34113 , Republic of Korea
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49
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Zylstra AB, Herrmann HW, Kim YH, McEvoy A, Meaney K, Glebov VY, Forrest C, Rubery M. Improved calibration of the OMEGA gas Cherenkov detector. Rev Sci Instrum 2019; 90:123504. [PMID: 31893806 DOI: 10.1063/1.5128765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Accepted: 11/24/2019] [Indexed: 06/10/2023]
Abstract
Inertial fusion implosions are diagnosed using γ rays to characterize the implosion physics or measure basic nuclear properties, including cross sections. For the latter, previously reported measurements at laser facilities using gas Cherenkov detectors are limited by a large systematic uncertainty in the detector response. We present a novel in situ calibration technique using neutron inelastic scattering, which we apply to the new GCD-3 detector. The calibration accuracy is improved by ∼3× over the previous method.
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Affiliation(s)
- A B Zylstra
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - H W Herrmann
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - Y H Kim
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - A McEvoy
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - K Meaney
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - V Yu Glebov
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - C Forrest
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - M Rubery
- Plasma Physics Department, AWE plc, Reading RG7 4PR, United Kingdom
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Abstract
OBJECTIVES The International Council of Nurses supports the development of International Classification for Nursing Practice® (ICNP®) catalogues to support the construction of electronic health records and evidence-based practice. Such a catalogue is needed for inpatient falls. METHODS The ICNP®-Based Inpatient Fall-Prevention Catalogue ('The Catalogue') was developed following the six steps recommended by the International Council of Nurses: (1) identifying inpatient falls as a priority, (2) gathering relevant concepts from 10 international guidelines and comparing locally defined sets of fall-prevention terms, (3) mapping the concepts to the ICNP® terminology, (4) identifying new concepts, (5) conducting a clinical face validation with a 12-member panel and finalizing The Catalogue and (6) setting a strategy for dissemination. The high-level structure of the International Classification for Patient Safety was used as a theoretical framework. RESULTS Eighteen nursing care elements and 141 terms were identified. A local vocabulary set had 89 terms (63.1%) that all corresponded to the identified terms. The exact and post-coordination mapping rates to the ICNP® were 75% and 40.6% for assessment/diagnosis/outcomes and interventions, respectively. The 54 new terms corresponded to 52 primitive concepts. An external review of The Catalogue showed that it had adequate understandability and validity. However, one-third of assessments/diagnoses/outcomes and one-fourth of interventions were not found in a tertiary hospital practice. CONCLUSION A fall-prevention catalogue has been developed based on evidence and a theoretical framework and also clinically validated. IMPLICATION FOR NURSING AND HEALTH POLICY The Catalogue is a standardized interface terminology and content subset in any electronic health records system that can directly deliver evidence on fall prevention. It can also be used as an informatics tool to aggregate, analyse, interpret and compare nursing data worldwide.
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Affiliation(s)
- I Cho
- Nursing Department, Inha University, Incheon, Korea
| | - J Kim
- Asan Medical Center, Seoul, Korea
| | - J S Chae
- Asan Medical Center, Seoul, Korea
| | - M Jung
- Department of Clinical Nursing, University of Ulsan, Ulsan, Korea
| | - Y H Kim
- Department of Clinical Nursing, University of Ulsan, Ulsan, Korea
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