1
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Dresselhaus-Marais LE, Kozioziemski B, Holstad TS, Ræder TM, Seaberg M, Nam D, Kim S, Breckling S, Choi S, Chollet M, Cook PK, Folsom E, Galtier E, Gonzalez A, Gorkhover T, Guillet S, Haldrup K, Howard M, Katagiri K, Kim S, Kim S, Kim S, Kim H, Knudsen EB, Kuschel S, Lee HJ, Lin C, McWilliams RS, Nagler B, Nielsen MM, Ozaki N, Pal D, Pablo Pedro R, Saunders AM, Schoofs F, Sekine T, Simons H, van Driel T, Wang B, Yang W, Yildirim C, Poulsen HF, Eggert JH. Simultaneous bright- and dark-field X-ray microscopy at X-ray free electron lasers. Sci Rep 2023; 13:17573. [PMID: 37845245 PMCID: PMC10579415 DOI: 10.1038/s41598-023-35526-5] [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] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Accepted: 05/19/2023] [Indexed: 10/18/2023] Open
Abstract
The structures, strain fields, and defect distributions in solid materials underlie the mechanical and physical properties across numerous applications. Many modern microstructural microscopy tools characterize crystal grains, domains and defects required to map lattice distortions or deformation, but are limited to studies of the (near) surface. Generally speaking, such tools cannot probe the structural dynamics in a way that is representative of bulk behavior. Synchrotron X-ray diffraction based imaging has long mapped the deeply embedded structural elements, and with enhanced resolution, dark field X-ray microscopy (DFXM) can now map those features with the requisite nm-resolution. However, these techniques still suffer from the required integration times due to limitations from the source and optics. This work extends DFXM to X-ray free electron lasers, showing how the [Formula: see text] photons per pulse available at these sources offer structural characterization down to 100 fs resolution (orders of magnitude faster than current synchrotron images). We introduce the XFEL DFXM setup with simultaneous bright field microscopy to probe density changes within the same volume. This work presents a comprehensive guide to the multi-modal ultrafast high-resolution X-ray microscope that we constructed and tested at two XFELs, and shows initial data demonstrating two timing strategies to study associated reversible or irreversible lattice dynamics.
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Affiliation(s)
- Leora E Dresselhaus-Marais
- Department of Materials Science & Engineering, Stanford University, Stanford, CA, USA.
- SLAC National Accelerator Laboratory, Menlo Park, CA, USA.
- Physics Division, Lawrence Livermore National Laboratory, Livermore, CA, USA.
| | | | - Theodor S Holstad
- Department of Physics, Technical University of Denmark, Lyngby, Denmark
| | | | | | - Daewoong Nam
- Photon Science Center, Pohang University and Science and Technology, Pohang, Korea
- XFEL Beamline Department, Pohang Accelerator Laboratory, Pohang University and Science and Technology, Pohang, Korea
| | - Sangsoo Kim
- XFEL Beamline Department, Pohang Accelerator Laboratory, Pohang University and Science and Technology, Pohang, Korea
| | | | - Sungwook Choi
- Department of Physics, Sogang University, Seoul, Korea
| | | | - Philip K Cook
- University of Natural Resources and Life Sciences, BOKU, Vienna, Austria
- European Synchrotron Radiation Facility, Grenoble, France
| | - Eric Folsom
- Physics Division, Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - Eric Galtier
- SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | | | - Tais Gorkhover
- SLAC National Accelerator Laboratory, Menlo Park, CA, USA
- University of Hamburg, Hamburg, Germany
| | - Serge Guillet
- SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | | | | | - Kento Katagiri
- Department of Materials Science & Engineering, Stanford University, Stanford, CA, USA
- Graduate School of Engineering, Osaka University, Osaka, Japan
| | - Seonghan Kim
- XFEL Beamline Department, Pohang Accelerator Laboratory, Pohang University and Science and Technology, Pohang, Korea
| | - Sunam Kim
- XFEL Beamline Department, Pohang Accelerator Laboratory, Pohang University and Science and Technology, Pohang, Korea
| | - Sungwon Kim
- Department of Physics, Sogang University, Seoul, Korea
| | - Hyunjung Kim
- Department of Physics, Sogang University, Seoul, Korea
| | | | - Stephan Kuschel
- SLAC National Accelerator Laboratory, Menlo Park, CA, USA
- Institute of Nuclear Physics, Technical University of Darmstadt, Darmstadt, Germany
| | - Hae Ja Lee
- SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - Chuanlong Lin
- Center for High Pressure Science & Technology Advanced Research, Shanghai, China
| | | | - Bob Nagler
- SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | | | - Norimasa Ozaki
- Graduate School of Engineering, Osaka University, Osaka, Japan
| | - Dayeeta Pal
- Department of Materials Science & Engineering, Stanford University, Stanford, CA, USA
- SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - Ricardo Pablo Pedro
- Department of Nuclear Science & Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Alison M Saunders
- Physics Division, Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - Frank Schoofs
- UK Atomic Energy Authority, Culham Science Centre, Abingdon, UK
| | - Toshimori Sekine
- Center for High Pressure Science & Technology Advanced Research, Shanghai, China
| | - Hugh Simons
- Department of Physics, Technical University of Denmark, Lyngby, Denmark
| | - Tim van Driel
- SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - Bihan Wang
- Center for High Pressure Science & Technology Advanced Research, Shanghai, China
| | - Wenge Yang
- Center for High Pressure Science & Technology Advanced Research, Shanghai, China
| | - Can Yildirim
- European Synchrotron Radiation Facility, Grenoble, France
- Université Grenoble Alpes, CEA, Grenoble, France
| | | | - Jon H Eggert
- Physics Division, Lawrence Livermore National Laboratory, Livermore, CA, USA
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2
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Sano T, Matsuda T, Hirose A, Ohata M, Terai T, Kakeshita T, Inubushi Y, Sato T, Miyanishi K, Yabashi M, Togashi T, Tono K, Sakata O, Tange Y, Arakawa K, Ito Y, Okuchi T, Sato T, Sekine T, Mashimo T, Nakanii N, Seto Y, Shigeta M, Shobu T, Sano Y, Hosokai T, Matsuoka T, Yabuuchi T, Tanaka KA, Ozaki N, Kodama R. X-ray free electron laser observation of ultrafast lattice behaviour under femtosecond laser-driven shock compression in iron. Sci Rep 2023; 13:13796. [PMID: 37652921 PMCID: PMC10471609 DOI: 10.1038/s41598-023-40283-6] [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] [Received: 02/07/2023] [Accepted: 08/08/2023] [Indexed: 09/02/2023] Open
Abstract
Over the past century, understanding the nature of shock compression of condensed matter has been a major topic. About 20 years ago, a femtosecond laser emerged as a new shock-driver. Unlike conventional shock waves, a femtosecond laser-driven shock wave creates unique microstructures in materials. Therefore, the properties of this shock wave may be different from those of conventional shock waves. However, the lattice behaviour under femtosecond laser-driven shock compression has never been elucidated. Here we report the ultrafast lattice behaviour in iron shocked by direct irradiation of a femtosecond laser pulse, diagnosed using X-ray free electron laser diffraction. We found that the initial compression state caused by the femtosecond laser-driven shock wave is the same as that caused by conventional shock waves. We also found, for the first time experimentally, the temporal deviation of peaks of stress and strain waves predicted theoretically. Furthermore, the existence of a plastic wave peak between the stress and strain wave peaks is a new finding that has not been predicted even theoretically. Our findings will open up new avenues for designing novel materials that combine strength and toughness in a trade-off relationship.
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Affiliation(s)
- Tomokazu Sano
- Graduate School of Engineering, Osaka University, 2-1 Yamada-Oka, Suita, Osaka, 565-0871, Japan.
- SANKEN, Osaka University, Ibaraki, Osaka, 567-0047, Japan.
| | - Tomoki Matsuda
- Graduate School of Engineering, Osaka University, 2-1 Yamada-Oka, Suita, Osaka, 565-0871, Japan
| | - Akio Hirose
- Graduate School of Engineering, Osaka University, 2-1 Yamada-Oka, Suita, Osaka, 565-0871, Japan
| | - Mitsuru Ohata
- Graduate School of Engineering, Osaka University, 2-1 Yamada-Oka, Suita, Osaka, 565-0871, Japan
| | - Tomoyuki Terai
- Graduate School of Engineering, Osaka University, 2-1 Yamada-Oka, Suita, Osaka, 565-0871, Japan
| | - Tomoyuki Kakeshita
- Graduate School of Engineering, Osaka University, 2-1 Yamada-Oka, Suita, Osaka, 565-0871, Japan
- Fukui University of Technology, Fukui, 910-8505, Japan
| | - Yuichi Inubushi
- Japan Synchrotron Radiation Research Institute, 1-1-1 Kouto, Sayo, Hyogo, 679-5198, Japan
- RIKEN, SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo, 679-5148, Japan
| | - Takahiro Sato
- RIKEN, SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo, 679-5148, Japan
- SLAC National Accelerator Laboratory, Stanford, CA, 94309, USA
| | - Kohei Miyanishi
- RIKEN, SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo, 679-5148, Japan
| | - Makina Yabashi
- Japan Synchrotron Radiation Research Institute, 1-1-1 Kouto, Sayo, Hyogo, 679-5198, Japan
- RIKEN, SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo, 679-5148, Japan
| | - Tadashi Togashi
- Japan Synchrotron Radiation Research Institute, 1-1-1 Kouto, Sayo, Hyogo, 679-5198, Japan
- RIKEN, SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo, 679-5148, Japan
| | - Kensuke Tono
- Japan Synchrotron Radiation Research Institute, 1-1-1 Kouto, Sayo, Hyogo, 679-5198, Japan
- RIKEN, SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo, 679-5148, Japan
| | - Osami Sakata
- Japan Synchrotron Radiation Research Institute, 1-1-1 Kouto, Sayo, Hyogo, 679-5198, Japan
| | - Yoshinori Tange
- Japan Synchrotron Radiation Research Institute, 1-1-1 Kouto, Sayo, Hyogo, 679-5198, Japan
| | - Kazuto Arakawa
- Next Generation TATARA Co-Creation Centre, Shimane University, Matsue, Shimane, 690-8504, Japan
| | - Yusuke Ito
- Graduate School of Engineering, The University of Tokyo, Tokyo, 113-8656, Japan
| | - Takuo Okuchi
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, Kumatori, Osaka, 590-0458, Japan
| | - Tomoko Sato
- Graduate School of Advanced Science and Engineering, Hiroshima University, Higashihiroshima, Hiroshima, 739-8511, Japan
| | - Toshimori Sekine
- Graduate School of Engineering, Osaka University, 2-1 Yamada-Oka, Suita, Osaka, 565-0871, Japan
- Center for High Pressure Science and Technology Advanced Research, Shanghai, 201203, China
| | - Tsutomu Mashimo
- Institute of Industrial Nanomaterials, Kumamoto University, Kumamoto, 860-8555, Japan
| | - Nobuhiko Nakanii
- Kansai Institute for Photon Science (KPSI), National Institutes for Quantum Science and Technology (QST), Kizugawa, Kyoto, 619-0215, Japan
| | - Yusuke Seto
- Graduate School of Science, Osaka Metropolitan University, Osaka, 558-8585, Japan
| | - Masaya Shigeta
- Graduate School of Engineering, Tohoku University, Miyagi, 980-8579, Japan
| | - Takahisa Shobu
- Sector of Nuclear Science Research, Japan Atomic Energy Agency, Sayo, Hyogo, 679-5148, Japan
| | - Yuji Sano
- SANKEN, Osaka University, Ibaraki, Osaka, 567-0047, Japan
- Institute for Molecular Science, National Institutes of Natural Sciences, Okazaki, 444-8585, Japan
- Toshiba Energy Systems & Solutions Corporation, Kawasaki, Kanagawa, 212-0013, Japan
| | | | - Takeshi Matsuoka
- Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Toshinori Yabuuchi
- Japan Synchrotron Radiation Research Institute, 1-1-1 Kouto, Sayo, Hyogo, 679-5198, Japan
- RIKEN, SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo, 679-5148, Japan
| | - Kazuo A Tanaka
- Graduate School of Engineering, Osaka University, 2-1 Yamada-Oka, Suita, Osaka, 565-0871, Japan
- Institute of Laser Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Norimasa Ozaki
- Graduate School of Engineering, Osaka University, 2-1 Yamada-Oka, Suita, Osaka, 565-0871, Japan
- Institute of Laser Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Ryosuke Kodama
- Graduate School of Engineering, Osaka University, 2-1 Yamada-Oka, Suita, Osaka, 565-0871, Japan
- Institute of Laser Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
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Leong PK, Sekine T, Tam KV, Tam SI, Tang CP. First-Principles Calculations with Six Structures of Alkaline Earth Metal Cyanide A(CN) 2 (A = Be, Mg, Ca, Sr, and Ba): Structural, Electrical, and Phonon Properties. ACS Omega 2023; 8:2973-2981. [PMID: 36713722 PMCID: PMC9878677 DOI: 10.1021/acsomega.2c05667] [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: 09/01/2022] [Accepted: 11/18/2022] [Indexed: 06/18/2023]
Abstract
This work examines six structures (P4̅3m, P42 nm, R3m, P21/c, R3̅m, and C2/m) of alkaline earth metal cyanide A(CN)2 (A = Be, Mg, Ca, Sr, and Ba) using first-principles calculations. The symmetries of P4̅3m, P42 nm, and R3m reflect a variation of Pn3̅m, previously reported as occurring on Be(CN)2 and Mg(CN)2 in X-ray diffraction studies, while the symmetries of P21/c, R3̅m, and C2/m were selected from the P3̅m1 symmetry found using Mg(OH)2 as the initial structures, with -OH being replaced by -CN. The band structure, density of states, and phonon properties of all A(CN)2 structures were then investigated using density functional theory (DFT), with a generalized gradient approximation (GGA) applied for the exchange and correlation energy values. The simulation results for the phonon spectra indicate that the stable structures are Be(CN)2 (P4̅3m, P42 nm, and C2/m), Mg(CN)2 (P4̅3m, P42 nm, and C2/m), Ca(CN)2 (P21/c), Sr(CN)2 (P21/c and R3̅m), and Ba(CN)2 (R3̅m) at 0 GPa. For the effects of high pressure, Ca(CN)2 and Sr(CN)2 were thus found to be stable as C2/m at pressures above 10 and 3 GPa, respectively, while Ca(CN)2 is as stable as R3̅m above 15 GPa. In the calculated band structures, all of the compounds with the C2/m structure demonstrated good conductivity, while the other structures have a band gap range of 2.83-6.33 eV.
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Affiliation(s)
- Pak Kin Leong
- State
Key Laboratory of Lunar and Planetary Sciences, Macau University of Science and Technology, Taipa 999078, Macao, China
| | - Toshimori Sekine
- Center
for High Pressure Science and Technology Advanced Research, Shanghai 201203, China
| | - Kuan Vai Tam
- School
of Astronomy and Space Science, Nanjing
University, Nanjing 210093, China
| | - Sok I. Tam
- Faculty
of Innovation Engineering, Macau University
of Science and Technology, Taipa 999078, Macao, China
| | - Chi Pui Tang
- State
Key Laboratory of Lunar and Planetary Sciences, Macau University of Science and Technology, Taipa 999078, Macao, China
- Faculty
of Innovation Engineering, Macau University
of Science and Technology, Taipa 999078, Macao, China
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4
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Gao X, Ran H, Zhou Q, Sekine T, Liu J, Chen Y, Chen P. Formation of Novel Bimetal Oxide In 2V 2O 7 through a Shock Compression Method. ACS Omega 2022; 7:27602-27608. [PMID: 35967011 PMCID: PMC9366963 DOI: 10.1021/acsomega.2c03220] [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: 05/24/2022] [Accepted: 07/19/2022] [Indexed: 06/15/2023]
Abstract
Bimetal oxides with a chemical formula of A2B2O7 have received much attention from plenty of research groups owing to their outstanding properties, such as electronic, optical, and magnetic properties. Among the abundant element combinations of cations A and B, some theoretically predicted compounds have not successfully been synthesized in experiments, such as In2Zr2O7, In2V2O7, etc. In this study, a novel tetragonal pyrochlore-like In2V2O7 nanopowder has been reported for the first time. In2O3 and VO2 powders mixed through ball milling were reacted to form In2V2O7 by shockwave loading. The recovered sample is investigated to be nanocrystalline In2V2O7 powder through various techniques, such as X-ray diffraction, scanning electron microscopy, X-ray energy spectrum analysis, and transmission electron microscopy. The formed In2V2O7 is indexed as a tetragonal cell with a = b = 0.7417 nm and c = 2.1035 nm. Moreover, the formation mechanism of In2V2O7 through a shock synthesis process is carefully analyzed based on basic laws of shockwave. The experimental results also confirm that a high shock temperature and high shock pressure are the two key factors to synthesize the In2V2O7 nanopowder. Our investigation demonstrates the high potential application of a shock-induced reaction on the synthesis of novel materials, including the preparation of new bimetal oxides.
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Affiliation(s)
- Xin Gao
- State
Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, No. 5, Zhongguancun South Street, Haidian District, Beijing 100081, China
- Advanced
Technology Research Institute, Beijing Institute
of Technology, Furong
Road, Changqing District, Jinan, Shandong 250307, China
| | - Haotian Ran
- Chongqing
Hongyu Precision Industry Group Co., Ltd., No. 9, Hongyu Avenue, Bishan District, Chongqing 402760, China
| | - Qiang Zhou
- China
Academy of Ordnance Science, No.10, Chedaogou, Haidian District, Beijing 100089, China
| | - Toshimori Sekine
- Center
for High Pressure Science and Technology Advanced Research, No. 10, Xibeiwang East Road, Haidian
District, Beijing 100094, China
| | - Jianjun Liu
- State Key
Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, No.15, Beisanhuan East Road, Chaoyang District, Beijing 100029, China
| | - Yan Chen
- Advanced
Technology Research Institute, Beijing Institute
of Technology, Furong
Road, Changqing District, Jinan, Shandong 250307, China
| | - Pengwan Chen
- State
Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, No. 5, Zhongguancun South Street, Haidian District, Beijing 100081, China
- Advanced
Technology Research Institute, Beijing Institute
of Technology, Furong
Road, Changqing District, Jinan, Shandong 250307, China
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Takeda Y, Kin T, Sekine T, Hasegawa H, Suzuki Y, Uchikawa H, Koike T, Kiyofuji S, Shinya Y, Kawashima M, Saito N. Hemodynamic Analysis of Cerebral AVMs with 3D Phase-Contrast MR Imaging. AJNR Am J Neuroradiol 2021; 42:2138-2145. [PMID: 34620595 DOI: 10.3174/ajnr.a7314] [Citation(s) in RCA: 4] [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] [Received: 04/20/2021] [Accepted: 07/28/2021] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE The hemodynamics associated with cerebral AVMs have a significant impact on their clinical presentation. This study aimed to evaluate the hemodynamic features of AVMs using 3D phase-contrast MR imaging with dual velocity-encodings. MATERIALS AND METHODS Thirty-two patients with supratentorial AVMs who had not received any previous treatment and had undergone 3D phase-contrast MR imaging were included in this study. The nidus diameter and volume were measured for classification of AVMs (small, medium, or large). Flow parameters measured included apparent AVM inflow, AVM inflow index, apparent AVM outflow, AVM outflow index, and the apparent AVM inflow-to-outflow ratio. Correlation coefficients between the nidus volume and each flow were calculated. The flow parameters between small and other AVMs as well as between nonhemorrhagic and hemorrhagic AVMs were compared. RESULTS Patients were divided into hemorrhagic (n = 8) and nonhemorrhagic (n = 24) groups. The correlation coefficient between the nidus volume and the apparent AVM inflow and outflow was .83. The apparent AVM inflow and outflow in small AVMs were significantly smaller than in medium AVMs (P < .001 for both groups). The apparent AVM inflow-to-outflow ratio was significantly larger in the hemorrhagic AVMs than in the nonhemorrhagic AVMs (P = .02). CONCLUSIONS The apparent AVM inflow-to-outflow ratio was the only significant parameter that differed between nonhemorrhagic and hemorrhagic AVMs, suggesting that a poor drainage system may increase AVM pressure, potentially causing cerebral hemorrhage.
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Affiliation(s)
- Y Takeda
- From the Department of Neurosurgery (Y.T., T.K., H.H., H.U., T.K., S.K., Y. Shinya, M.K., N.S.)
| | - T Kin
- From the Department of Neurosurgery (Y.T., T.K., H.H., H.U., T.K., S.K., Y. Shinya, M.K., N.S.)
| | - T Sekine
- Department of Radiology (T.S.), Nippon Medical School Musashi-kosugi Hospital, Kanagawa, Japan
| | - H Hasegawa
- From the Department of Neurosurgery (Y.T., T.K., H.H., H.U., T.K., S.K., Y. Shinya, M.K., N.S.)
| | - Y Suzuki
- Radiology (Y.Suzuki), The University of Tokyo, Tokyo, Japan
| | - H Uchikawa
- From the Department of Neurosurgery (Y.T., T.K., H.H., H.U., T.K., S.K., Y. Shinya, M.K., N.S.)
| | - T Koike
- From the Department of Neurosurgery (Y.T., T.K., H.H., H.U., T.K., S.K., Y. Shinya, M.K., N.S.)
| | - S Kiyofuji
- From the Department of Neurosurgery (Y.T., T.K., H.H., H.U., T.K., S.K., Y. Shinya, M.K., N.S.)
| | - Y Shinya
- From the Department of Neurosurgery (Y.T., T.K., H.H., H.U., T.K., S.K., Y. Shinya, M.K., N.S.)
| | - M Kawashima
- From the Department of Neurosurgery (Y.T., T.K., H.H., H.U., T.K., S.K., Y. Shinya, M.K., N.S.)
| | - N Saito
- From the Department of Neurosurgery (Y.T., T.K., H.H., H.U., T.K., S.K., Y. Shinya, M.K., N.S.)
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Maravelia P, Perez Potti A, Nascimento Silva D, Healy K, Sekine T, Chrobok M, Jorns C, Sallberg M, Buggert M, Pasetto A. Identification of targets for TCR-immunotherapy in hepatocellular carcinoma using a clinically relevant platform. Cytotherapy 2021. [DOI: 10.1016/s1465324921004072] [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: 10/21/2022]
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7
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Masuda S, Furukawa Y, Kobayashi T, Sekine T, Kakegawa T. Experimental Investigation of the Formation of Formaldehyde by Hadean and Noachian Impacts. Astrobiology 2021; 21:413-420. [PMID: 33784199 DOI: 10.1089/ast.2020.2320] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Formaldehyde (FA) is an important precursor in the abiotic synthesis of major biomolecules including amino acids, sugars, and nucleobases. Thus, spontaneous formation of prebiotic FA must have been crucial for the chemical origin of life. The frequent impacts of meteorites and asteroids on Hadean Earth have been considered one of the abiotic synthetic processes of organic compounds. However, the impact-induced formation of FA from CO2 as the major atmospheric constituent has not been confirmed yet. This study investigated the formation of FA in impact-induced reactions among meteoritic minerals, bicarbonate, gaseous nitrogen, and water to simulate the abiotic process experimentally. Products were analyzed with ultra-high-performance liquid chromatography/tandem mass spectrometry and powder X-ray diffraction techniques. The results show the formation of FA and oxidation of metallic iron to siderite in the impact shock experiments. This indicates that this important prebiotic molecule was also synthesized by impacts of iron-bearing meteorites/asteroids on the Hadean oceans. The impact events might have generated spatially and temporally FA-enriched localized environments. Moreover, the impact-induced synthesis of FA may have also occurred on Noachian Mars given the presence of liquid water and a CO2-N2-rich atmosphere on the planet.
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Affiliation(s)
- Saeka Masuda
- Department of Earth Science, Tohoku University, Sendai, Japan
| | | | | | - Toshimori Sekine
- Center for High Pressure Science & Technology Advanced Research, Shanghai, China
- Graduate School of Engineering, Osaka University, Osaka, Japan
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8
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Katagiri K, Ozaki N, Umeda Y, Irifune T, Kamimura N, Miyanishi K, Sano T, Sekine T, Kodama R. Shock Response of Full Density Nanopolycrystalline Diamond. Phys Rev Lett 2020; 125:185701. [PMID: 33196243 DOI: 10.1103/physrevlett.125.185701] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 09/24/2020] [Indexed: 06/11/2023]
Abstract
Hugoniot of full-dense nanopolycrystalline diamond (NPD) was investigated up to 1600 GPa. The Hugoniot elastic limit of NPD is 208 (±14) GPa, which is more than twice as high as that of single-crystal diamond. The Hugoniot of NPD is stiffer than that of single-crystal diamond up to 500 GPa, while no significant difference is observed at higher pressures where the elastic precursor is overdriven by a following plastic wave. These findings confirm that the grain boundary strengthening effect recognized in static compression experiments is also effective against high strain-rate dynamic compressions.
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Affiliation(s)
- Kento Katagiri
- Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan
- Institute of Laser Engineering, Osaka University, Osaka 565-0871, Japan
| | - Norimasa Ozaki
- Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan
- Institute of Laser Engineering, Osaka University, Osaka 565-0871, Japan
| | - Yuhei Umeda
- Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan
- Institute for Planetary Materials, Okayama University, Tottori 682-0193, Japan
| | - Tetsuo Irifune
- Geodynamics Research Center, Ehime University, Ehime 790-0826, Japan
- Earth-Life Science Institute, Tokyo Institute of Technology, Tokyo 145-0061, Japan
| | - Nobuki Kamimura
- Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan
| | | | - Takayoshi Sano
- Institute of Laser Engineering, Osaka University, Osaka 565-0871, Japan
| | - Toshimori Sekine
- Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan
- Center for High-Pressure Science and Technology Advanced Research, Shanghai 201203, China
| | - Ryosuke Kodama
- Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan
- Institute of Laser Engineering, Osaka University, Osaka 565-0871, Japan
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9
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Hwang H, Galtier E, Cynn H, Eom I, Chun SH, Bang Y, Hwang GC, Choi J, Kim T, Kong M, Kwon S, Kang K, Lee HJ, Park C, Lee JI, Lee Y, Yang W, Shim SH, Vogt T, Kim S, Park J, Kim S, Nam D, Lee JH, Hyun H, Kim M, Koo TY, Kao CC, Sekine T, Lee Y. Subnanosecond phase transition dynamics in laser-shocked iron. Sci Adv 2020; 6:eaaz5132. [PMID: 32548258 PMCID: PMC7274792 DOI: 10.1126/sciadv.aaz5132] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Accepted: 04/06/2020] [Indexed: 05/31/2023]
Abstract
Iron is one of the most studied chemical elements due to its sociotechnological and planetary importance; hence, understanding its structural transition dynamics is of vital interest. By combining a short pulse optical laser and an ultrashort free electron laser pulse, we have observed the subnanosecond structural dynamics of iron from high-quality x-ray diffraction data measured at 50-ps intervals up to 2500 ps. We unequivocally identify a three-wave structure during the initial compression and a two-wave structure during the decaying shock, involving all of the known structural types of iron (α-, γ-, and ε-phase). In the final stage, negative lattice pressures are generated by the propagation of rarefaction waves, leading to the formation of expanded phases and the recovery of γ-phase. Our observations demonstrate the unique capability of measuring the atomistic evolution during the entire lattice compression and release processes at unprecedented time and strain rate.
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Affiliation(s)
- H. Hwang
- Department of Earth System Sciences, Yonsei University, Seoul 03722, Republic of Korea
| | - E. Galtier
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - H. Cynn
- High Pressure Physics Group, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
| | - I. Eom
- Pohang Accelerator Laboratory, Pohang, Gyeongbuk 37673, Republic of Korea
| | - S. H. Chun
- Pohang Accelerator Laboratory, Pohang, Gyeongbuk 37673, Republic of Korea
| | - Y. Bang
- Department of Earth System Sciences, Yonsei University, Seoul 03722, Republic of Korea
| | - G. C. Hwang
- Department of Earth System Sciences, Yonsei University, Seoul 03722, Republic of Korea
| | - J. Choi
- Department of Earth System Sciences, Yonsei University, Seoul 03722, Republic of Korea
| | - T. Kim
- Department of Earth System Sciences, Yonsei University, Seoul 03722, Republic of Korea
| | - M. Kong
- Department of Earth System Sciences, Yonsei University, Seoul 03722, Republic of Korea
| | - S. Kwon
- Department of Earth System Sciences, Yonsei University, Seoul 03722, Republic of Korea
| | - K. Kang
- Department of Earth System Sciences, Yonsei University, Seoul 03722, Republic of Korea
| | - H. J. Lee
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - C. Park
- Korea Polar Research Institute, Incheon 21990, Republic of Korea
| | - J. I. Lee
- Korea Polar Research Institute, Incheon 21990, Republic of Korea
| | - Yongmoon Lee
- Center for High Pressure Science and Technology Advanced Research, Shanghai 201203, China
| | - W. Yang
- Center for High Pressure Science and Technology Advanced Research, Shanghai 201203, China
| | - S.-H. Shim
- School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287, USA
| | - T. Vogt
- NanoCenter and Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, USA
| | - Sangsoo Kim
- Pohang Accelerator Laboratory, Pohang, Gyeongbuk 37673, Republic of Korea
| | - J. Park
- Pohang Accelerator Laboratory, Pohang, Gyeongbuk 37673, Republic of Korea
| | - Sunam Kim
- Pohang Accelerator Laboratory, Pohang, Gyeongbuk 37673, Republic of Korea
| | - D. Nam
- Pohang Accelerator Laboratory, Pohang, Gyeongbuk 37673, Republic of Korea
| | - J. H. Lee
- Pohang Accelerator Laboratory, Pohang, Gyeongbuk 37673, Republic of Korea
| | - H. Hyun
- Pohang Accelerator Laboratory, Pohang, Gyeongbuk 37673, Republic of Korea
| | - M. Kim
- Pohang Accelerator Laboratory, Pohang, Gyeongbuk 37673, Republic of Korea
| | - T.-Y. Koo
- Pohang Accelerator Laboratory, Pohang, Gyeongbuk 37673, Republic of Korea
| | - C.-C. Kao
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - T. Sekine
- Center for High Pressure Science and Technology Advanced Research, Shanghai 201203, China
- Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yongjae Lee
- Department of Earth System Sciences, Yonsei University, Seoul 03722, Republic of Korea
- Center for High Pressure Science and Technology Advanced Research, Shanghai 201203, China
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10
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Matsuda J, Takano H, Sekine T, Sangen H, Kubota Y, Imori Y, Nakata J, Saiki Y, Miyachi H, Tara S, Hosokawa Y, Tokita Y, Yamamoto T, Kumita S, Shimizu W. P889Clinical significance of four-dimensional flow magnetic resonance imaging measurement of turbulent kinetic energy for hypertrophic obstructive cardiomyopathy. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0486] [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
Four-dimensional flow magnetic resonance imaging (4D flow MRI) provides the detailed visualization of complex blood flow patterns and the evaluation of energy loss. Turbulent kinetic energy estimation (TKE) is reported to have good correlation with irreversible pressure loss in patients having aortic stenosis or great vessel disease. However, little is known about the usefulness of 4D flow MRI and the significance of TKE value in hypertrophic cardiomyopathy (HCM).
Purpose
The aims of this study were to investigate the relationship between TKE value and echocardiographic findings, clinical symptoms and evaluate the usefulness of 4D flow MRI to distinguish hypertrophic obstructive cardiomyopathy (HOCM) from non-obstructive HCM (HNCM).
Methods
From April 2018 to January 2019, 18 hypertrophic obstructive cardiomyopathy (HOCM) and 14 non-obstructive HCM (HNCM) patients underwent 4D flow MRI. We investigated TKE value calculated by 4D flow MRI, echocardiographic findings; left ventricular pressure gradient (LVPG), mitral regurgitation (MR) and clinical symptom.
Results
HOCM was defined by the 30 mmHg or greater of LVPG (HOCM: 87.7±47.3 mmHg, HNCM; 5.8±7.8 mmHg, p<0.001). TKE value in HOCM patients was significantly higher than HNCM (14.2±4.7 mJ vs. 9.0±4.6 mJ, p<0.001). There was a significant positive linear relationship between TKE value and LVPG (r=0.488, p=0.046). There was no significant relationship between NYHA functional class and TKE value (p=0.47) or LVPG (p=0.11). ROC curve analysis showed that optimal cut off point of TKE value between HOCM and HNCM (sensitivity=95%, specificity=62%, AUC=0.798) was 9.270 mJ. Multiple linear regression showed that there was significant association between severity of MR and combination of TKE (p=0.015) or LVPG (p–=0.012). A representative case demonstrated the significant reduction of TKE value 1 week and 3 months after alcohol septal reduction compared with that obtained before the procedure (Figure)
Conclusion
Our findings suggest that 4D Flow MRI can effectively evaluate the energy dissipation associated with LV outflow tract obstruction and TKE value is useful for identifying HOCM. TKE value also can be the novel parameter of the severity of HOCM.
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Affiliation(s)
- J Matsuda
- Nippon Medical School, Cardiovascular Intensive Care, Tokyo, Japan
| | - H Takano
- Nippon Medical School, Cardiovasculer medicine, Tokyo, Japan
| | - T Sekine
- Nippon Medical School, Radiology, Tokyo, Japan
| | - H Sangen
- Nippon Medical School, Cardiovascular Intensive Care, Tokyo, Japan
| | - Y Kubota
- Nippon Medical School, Cardiovasculer medicine, Tokyo, Japan
| | - Y Imori
- Nippon Medical School, Cardiovasculer medicine, Tokyo, Japan
| | - J Nakata
- Nippon Medical School, Cardiovascular Intensive Care, Tokyo, Japan
| | - Y Saiki
- Nippon Medical School, Cardiovasculer medicine, Tokyo, Japan
| | - H Miyachi
- Nippon Medical School, Cardiovasculer medicine, Tokyo, Japan
| | - S Tara
- Nippon Medical School, Cardiovascular Intensive Care, Tokyo, Japan
| | - Y Hosokawa
- Nippon Medical School, Cardiovascular Intensive Care, Tokyo, Japan
| | - Y Tokita
- Nippon Medical School, Cardiovasculer medicine, Tokyo, Japan
| | - T Yamamoto
- Nippon Medical School, Cardiovascular Intensive Care, Tokyo, Japan
| | - S Kumita
- Nippon Medical School, Radiology, Tokyo, Japan
| | - W Shimizu
- Nippon Medical School, Cardiovasculer medicine, Tokyo, Japan
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11
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Kayama M, Tomioka N, Ohtani E, Seto Y, Nagaoka H, Götze J, Miyake A, Ozawa S, Sekine T, Miyahara M, Tomeoka K, Matsumoto M, Shoda N, Hirao N, Kobayashi T. Discovery of moganite in a lunar meteorite as a trace of H 2O ice in the Moon's regolith. Sci Adv 2018; 4:eaar4378. [PMID: 29732406 PMCID: PMC5931767 DOI: 10.1126/sciadv.aar4378] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [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: 11/08/2017] [Accepted: 03/16/2018] [Indexed: 06/08/2023]
Abstract
Moganite, a monoclinic SiO2 phase, has been discovered in a lunar meteorite. Silica micrograins occur as nanocrystalline aggregates of mostly moganite and occasionally coesite and stishovite in the KREEP (high potassium, rare-earth element, and phosphorus)-like gabbroic-basaltic breccia NWA 2727, although these grains are seemingly absent in other lunar meteorites. We interpret the origin of these grains as follows: alkaline water delivery to the Moon via carbonaceous chondrite collisions, fluid capture during impact-induced brecciation, moganite precipitation from the captured H2O at pH 9.5 to 10.5 and 363 to 399 K on the sunlit surface, and meteorite launch from the Moon caused by an impact at 8 to 22 GPa and >673 K. On the subsurface, this captured H2O may still remain as ice at estimated bulk content of >0.6 weight %. This indicates the possibility of the presence of abundant available water resources underneath local sites of the host bodies within the Procellarum KREEP and South Pole Aitken terranes.
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Affiliation(s)
- Masahiro Kayama
- Department of Earth and Planetary Materials Science, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
- Creative Interdisciplinary Research Division, Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai 980-8578, Japan
| | - Naotaka Tomioka
- Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology, 200 Monobe Otsu, Nankoku, Kochi 783-8502, Japan
| | - Eiji Ohtani
- Department of Earth and Planetary Materials Science, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
| | - Yusuke Seto
- Department of Planetology, Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan
| | - Hiroshi Nagaoka
- Research Institute for Science and Engineering, Waseda University, Shinjuku, Tokyo 169-8555, Japan
| | - Jens Götze
- TU Bergakademie Freiberg, Institute of Mineralogy, Brennhausgasse 14, 09596 Freiberg, Germany
| | - Akira Miyake
- Department of Geology and Mineralogy, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwake, Sakyo-ku, Kyoto 606-8502, Japan
| | - Shin Ozawa
- Department of Earth and Planetary Materials Science, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
| | - Toshimori Sekine
- Department of Earth and Planetary Systems Science, Graduate School of Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
- Center for High Pressure Science and Technology Advanced Research, Pudong, Shanghai 201203, P.R. China
| | - Masaaki Miyahara
- Department of Earth and Planetary Systems Science, Graduate School of Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - Kazushige Tomeoka
- Department of Planetology, Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan
| | - Megumi Matsumoto
- Department of Planetology, Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan
| | - Naoki Shoda
- Department of Planetology, Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan
| | - Naohisa Hirao
- Japan Synchrotron Radiation Research Institute, 1-1-1 Kouto Sayo, Hyogo 679-5198, Japan
| | - Takamichi Kobayashi
- National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
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12
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Nakamura T, Teramachi M, Sekine T, Kawanami R, Fukuda S, Yoshitani M, Toba T, Ueda H, Hori Y, Inoue M, Shigeno K, Taka TN, Liu Y, Tamura N, Shimizu Y. Artificial Trachea and Long Term follow-up in Carinal Reconstruction in Dogs. Int J Artif Organs 2018. [DOI: 10.1177/039139880002301010] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
We have already reported “del” successful carinal reconstruction of the trachea with an observation period of 1 – 2 years. In this study, we evaluate the long-term safety and efficacy of the reconstruction after 5-years of follow-up. The Y-shaped Marlex® mesh tube was reinforced with a polypropylene spiral and coated with atelocollagen made from porcine skin. The prosthesis was 60 mm long with an outer diameter of 18 mm. Replacement of the tracheobronchial bifurcation was preformed through a right thoracotomy in a beagle dog. Bronchoscopical examination and sampling of the tracheal epithelium was performed periodically to check the function of cilia. The implanted prothesis was promptly infiltrated by the surrounding connective tissue and completely incorporated by the host trachea and bronchus. Bronchoscopically, sufficient epithelization was confirmed from the upper to the lower site of anastomosis. After 5 years neither stenosis nor dehiscence was observed. In spite of there being mesh-exposure at the luminal surface, the dog had no clinical symptoms until sacrifice for pathological examination. The bent frequency of the cilia was maintained within the normal range, indicating “del” functional recovery of the regenerating airway. Our tracheal prosthesis is promising for clinical “del” repair of the tracheobronchial bifurcation.
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Affiliation(s)
- T. Nakamura
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - M. Teramachi
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - T. Sekine
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - R. Kawanami
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - S. Fukuda
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - M. Yoshitani
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - T. Toba
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - H. Ueda
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - Y. Hori
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - M. Inoue
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - K. Shigeno
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - T. Nakahara Taka
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - Y. Liu
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - N. Tamura
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - Y. Shimizu
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
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13
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Xu F, Kobayashi T, Yang Z, Sekine T, Chang H, Wang N, Xia Y, Zhu Y. How the Toughest Inorganic Fullerene Cages Absorb Shockwave Pressures in a Protective Nanocomposite: Experimental Evidence from Two In Situ Investigations. ACS Nano 2017; 11:8114-8121. [PMID: 28777543 DOI: 10.1021/acsnano.7b02943] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Nanocomposites fabricated using the toughest caged inorganic fullerene WS2 (IF-WS2) nanoparticles could offer ultimate protection via absorbing shockwaves; however, if the IF-WS2 nanomaterials really work, how they behave and what they experience within the nanocomposites at the right moment of impact have never been investigated effectively, due to the limitations of existing investigation techniques that are unable to elucidate the true characteristics of high-speed impacts in composites. We first fabricated Al matrix model nanocomposites and then unlocked the exact roles of IF-WS2 in it at the exact moment of impact, at a time resolution that has never been attempted before, using two in situ techniques. We find that the presence of IF-WS2 reduced the impact velocity by over 100 m/s and in pressure by at least 2 GPa against those Al and hexagonal WS2 platelet composites at an impact speed of 1000 m/s. The IF-WS2 composites achieved an intriguing inelastic impact and outperformed other reference composites, all originating from the "balloon effect" by absorbing the shockwave pressures. This study not only provides fundamental understanding for the dynamic performance of composites but also benefits the development of protective nanocomposite engineering.
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Affiliation(s)
- Fang Xu
- CEMPS, University of Exeter , Exeter EX4 4QF, United Kingdom
- Faculty of Engineering, The University of Nottingham , Nottingham NG7 2RD, United Kingdom
| | | | - Zhuxian Yang
- CEMPS, University of Exeter , Exeter EX4 4QF, United Kingdom
| | - Toshimori Sekine
- Department of Earth and Planetary Systems Science, Hiroshima University , Higashi-Hiroshima 739-8526, Japan
- Centre for High Pressure Science and Technology Advanced Research , Shanghai 201203, People's Republic of China
| | - Hong Chang
- CEMPS, University of Exeter , Exeter EX4 4QF, United Kingdom
| | - Nannan Wang
- CEMPS, University of Exeter , Exeter EX4 4QF, United Kingdom
| | - Yongde Xia
- CEMPS, University of Exeter , Exeter EX4 4QF, United Kingdom
| | - Yanqiu Zhu
- CEMPS, University of Exeter , Exeter EX4 4QF, United Kingdom
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14
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Tatematsu Y, Saito T, Ikegami H, Sekine T, Nagai D, Nozaki K, Ishii K, Kohagura J, Nakashima Y, Kubo S, Shimozuma T, Cho T. Experiment of Fundamental ECRH in the GAMMA 10 Central Cell. Fusion Science and Technology 2017. [DOI: 10.13182/fst05-a656] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Y. Tatematsu
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Saito
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - H. Ikegami
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Sekine
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - D. Nagai
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - K. Nozaki
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - K. Ishii
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - J. Kohagura
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Nakashima
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Kubo
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - T. Shimozuma
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - T. Cho
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
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15
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Albertazzi B, Ozaki N, Zhakhovsky V, Faenov A, Habara H, Harmand M, Hartley N, Ilnitsky D, Inogamov N, Inubushi Y, Ishikawa T, Katayama T, Koyama T, Koenig M, Krygier A, Matsuoka T, Matsuyama S, McBride E, Migdal KP, Morard G, Ohashi H, Okuchi T, Pikuz T, Purevjav N, Sakata O, Sano Y, Sato T, Sekine T, Seto Y, Takahashi K, Tanaka K, Tange Y, Togashi T, Tono K, Umeda Y, Vinci T, Yabashi M, Yabuuchi T, Yamauchi K, Yumoto H, Kodama R. Dynamic fracture of tantalum under extreme tensile stress. Sci Adv 2017; 3:e1602705. [PMID: 28630909 PMCID: PMC5457031 DOI: 10.1126/sciadv.1602705] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Accepted: 04/10/2017] [Indexed: 05/25/2023]
Abstract
The understanding of fracture phenomena of a material at extremely high strain rates is a key issue for a wide variety of scientific research ranging from applied science and technological developments to fundamental science such as laser-matter interaction and geology. Despite its interest, its study relies on a fine multiscale description, in between the atomic scale and macroscopic processes, so far only achievable by large-scale atomic simulations. Direct ultrafast real-time monitoring of dynamic fracture (spallation) at the atomic lattice scale with picosecond time resolution was beyond the reach of experimental techniques. We show that the coupling between a high-power optical laser pump pulse and a femtosecond x-ray probe pulse generated by an x-ray free electron laser allows detection of the lattice dynamics in a tantalum foil at an ultrahigh strain rate of [Formula: see text] ~2 × 108 to 3.5 × 108 s-1. A maximal density drop of 8 to 10%, associated with the onset of spallation at a spall strength of ~17 GPa, was directly measured using x-ray diffraction. The experimental results of density evolution agree well with large-scale atomistic simulations of shock wave propagation and fracture of the sample. Our experimental technique opens a new pathway to the investigation of ultrahigh strain-rate phenomena in materials at the atomic scale, including high-speed crack dynamics and stress-induced solid-solid phase transitions.
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Affiliation(s)
- Bruno Albertazzi
- Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
- LULI, École Polytechnique, CNRS, Commissariat à l’Energie Atomique et aux Energies Alternatives, Pierre and Marie Curie University (UPMC), 91128 Palaiseau, France
| | - Norimasa Ozaki
- Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
- Photon Pioneers Center, Osaka University, Suita, Osaka 565-0871, Japan
| | - Vasily Zhakhovsky
- Dukhov Research Institute of Automatics, ROSATOM, Moscow 127055, Russia
- L.D. Landau Institute for Theoretical Physics, Russian Academy of Science, Chernogolovka 142432, Russia
| | - Anatoly Faenov
- Photon Pioneers Center, Osaka University, Suita, Osaka 565-0871, Japan
- Institute for Academic Initiatives, Osaka University, Suita, Osaka 565-0871, Japan
| | - Hideaki Habara
- Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
- Photon Pioneers Center, Osaka University, Suita, Osaka 565-0871, Japan
| | - Marion Harmand
- Institut de Minéralogie, de Physique des Matériaux, et de Cosmochimie, Sorbonne Universités - UPMC, UMR CNRS 7590, Muséum National d’Histoire Naturelle, IRD UMR 206, F-75005 Paris, France
| | - Nicholas Hartley
- Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, 01328 Dresden, Germany
| | - Denis Ilnitsky
- Dukhov Research Institute of Automatics, ROSATOM, Moscow 127055, Russia
- L.D. Landau Institute for Theoretical Physics, Russian Academy of Science, Chernogolovka 142432, Russia
| | - Nail Inogamov
- Dukhov Research Institute of Automatics, ROSATOM, Moscow 127055, Russia
- L.D. Landau Institute for Theoretical Physics, Russian Academy of Science, Chernogolovka 142432, Russia
| | - Yuichi Inubushi
- Japan Synchrotron Radiation Research Institute, Sayo, Hyogo 679-5198, Japan
- RIKEN Center, Sayo, Hyogo 679-5148, Japan
| | | | - Tetsuo Katayama
- Japan Synchrotron Radiation Research Institute, Sayo, Hyogo 679-5198, Japan
- RIKEN Center, Sayo, Hyogo 679-5148, Japan
| | - Takahisa Koyama
- Japan Synchrotron Radiation Research Institute, Sayo, Hyogo 679-5198, Japan
| | - Michel Koenig
- LULI, École Polytechnique, CNRS, Commissariat à l’Energie Atomique et aux Energies Alternatives, Pierre and Marie Curie University (UPMC), 91128 Palaiseau, France
- Institute for Academic Initiatives, Osaka University, Suita, Osaka 565-0871, Japan
| | - Andrew Krygier
- Institut de Minéralogie, de Physique des Matériaux, et de Cosmochimie, Sorbonne Universités - UPMC, UMR CNRS 7590, Muséum National d’Histoire Naturelle, IRD UMR 206, F-75005 Paris, France
| | - Takeshi Matsuoka
- Institute for Academic Initiatives, Osaka University, Suita, Osaka 565-0871, Japan
| | - Satoshi Matsuyama
- Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Emma McBride
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
- European XFEL GmbH, Holzkoppel 4, D-22869 Schenefeld, Germany
| | | | - Guillaume Morard
- Institut de Minéralogie, de Physique des Matériaux, et de Cosmochimie, Sorbonne Universités - UPMC, UMR CNRS 7590, Muséum National d’Histoire Naturelle, IRD UMR 206, F-75005 Paris, France
| | - Haruhiko Ohashi
- Japan Synchrotron Radiation Research Institute, Sayo, Hyogo 679-5198, Japan
| | - Takuo Okuchi
- Institute for Planetary Materials, Okayama University, Misasa, Tottori 682-0193, Japan
| | - Tatiana Pikuz
- Photon Pioneers Center, Osaka University, Suita, Osaka 565-0871, Japan
- Institute for Academic Initiatives, Osaka University, Suita, Osaka 565-0871, Japan
| | - Narangoo Purevjav
- Institute for Planetary Materials, Okayama University, Misasa, Tottori 682-0193, Japan
| | - Osami Sakata
- Synchrotron X-ray Station at Spring-8, National Institute for Materials Science (NIMS), Sayo, Hyogo 679-5148, Japan
| | - Yasuhisa Sano
- Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Tomoko Sato
- Graduate School of Science, Hiroshima University, Higashihiroshima 739-8526, Japan
| | - Toshimori Sekine
- Graduate School of Science, Hiroshima University, Higashihiroshima 739-8526, Japan
- Center for High Pressure Science and Technology Advanced Research, Pudong, Shanghai 201203, China
| | - Yusuke Seto
- Graduate School of Science, Kobe University, Kobe 657-8501, Japan
| | - Kenjiro Takahashi
- Photon Pioneers Center, Osaka University, Suita, Osaka 565-0871, Japan
| | - Kazuo Tanaka
- Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
- Photon Pioneers Center, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yoshinori Tange
- Japan Synchrotron Radiation Research Institute, Sayo, Hyogo 679-5198, Japan
- Geodynamics Research Center, Ehime University, Matsuyama, Ehime 790-8577, Japan
| | - Tadashi Togashi
- Japan Synchrotron Radiation Research Institute, Sayo, Hyogo 679-5198, Japan
- RIKEN Center, Sayo, Hyogo 679-5148, Japan
| | - Kensuke Tono
- Japan Synchrotron Radiation Research Institute, Sayo, Hyogo 679-5198, Japan
- RIKEN Center, Sayo, Hyogo 679-5148, Japan
| | - Yuhei Umeda
- Graduate School of Science, Hiroshima University, Higashihiroshima 739-8526, Japan
| | - Tommaso Vinci
- LULI, École Polytechnique, CNRS, Commissariat à l’Energie Atomique et aux Energies Alternatives, Pierre and Marie Curie University (UPMC), 91128 Palaiseau, France
| | | | - Toshinori Yabuuchi
- Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
- RIKEN Center, Sayo, Hyogo 679-5148, Japan
| | - Kazuto Yamauchi
- Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Hirokatsu Yumoto
- Japan Synchrotron Radiation Research Institute, Sayo, Hyogo 679-5198, Japan
| | - Ryosuke Kodama
- Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
- Institute for Academic Initiatives, Osaka University, Suita, Osaka 565-0871, Japan
- Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565-0871, Japan
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Liang JB, Kayawake E, Sekine T, Suzuki S, Lim KK. Developing zero-discharge pig-farming system: a feasibility study in Malaysia. Anim Prod Sci 2017. [DOI: 10.1071/an15669] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Pig production in many rapidly developing Asian countries evolved from traditional small-family farms without parallel increase in land resource for waste treatment, thus further worsening the already fragile environment. The present paper reports results of a feasibility study on developing a zero-waste discharge pig-farming system in the hot-humid environment such as Malaysia. The approach included (1) reduction in the usage of water, (2) use of micro-algal culture (MAC) system to reduce pollutants in the wastewater and (3) use of constructed wetlands to further clean up wastewater and reduce its volume via evapo-transpiration. Results of the study showed that water usage could be reduced from the current 40–50 to 7.5 L/pig.day. The biological oxygen demand of the effluent was reduced to below 10 mg/L, while other pollutants, such as suspended solid, total nitrogen and total ammonium nitrogen were also reduced to levels that meet the standards required for affluent discharge in most countries in this region. Water-balance study based on a 180-pig experiment showed that 1.15 m3 of water were used daily and this was reduced to 0.38 m3 at the end of the system. Financial projection study based on a farm size of 2000 pigs (which represents a typical pig-farm size in many developing countries, including Malaysia) was conducted to gauge the economical viability of the system. The results showed that the primary challenge to the adoption of this system is its high initial investment costs, estimated to be 1.8 times those for a similar-sized traditional farm with open-sided house and lagoons for wastewater treatment. However, higher productivity is expected from the use of a ventilated close-house that provides a cooler environment for the pigs. This, together with the premium price of the pigs that could be fetched from this eco-friendly production system, would make it a technically and economically viable system in the long run.
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Chen L, Al-Mossawi MH, Ridley A, Sekine T, Hammitzsch A, de Wit J, Simone D, Shi H, Penkava F, Kurowska-Stolarska M, Pulyakhina I, Knight JC, Kim TJ, Bowness P. miR-10b-5p is a novel Th17 regulator present in Th17 cells from ankylosing spondylitis. Ann Rheum Dis 2016; 76:620-625. [PMID: 28039186 DOI: 10.1136/annrheumdis-2016-210175] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 11/28/2016] [Accepted: 12/03/2016] [Indexed: 12/24/2022]
Abstract
OBJECTIVE To determine the microRNA (miR) signature in ankylosing spondylitis (AS) T helper (Th)17 cells. METHODS Interleukin (IL)-17A-producing CD4+ T cells from patients with AS and healthy controls were FACS-sorted for miR sequencing and qPCR validation. miR-10b function was determined by miR mimic expression followed by cytokine measurement, transcriptome analysis, qPCR and luciferase assays. RESULTS AS Th17 cells exhibited a miR signature characterised by upregulation of miR-155-5p, miR-210-3p and miR-10b. miR-10b has not been described previously in Th17 cells and was selected for further characterisation. miR-10b is transiently induced in in vitro differentiated Th17 cells. Transcriptome, qPCR and luciferase assays suggest that MAP3K7 is targeted by miR-10b. Both miR-10b overexpression and MAP3K7 silencing inhibited production of IL-17A by both total CD4 and differentiating Th17 cells. CONCLUSIONS AS Th17 cells have a specific miR signature and upregulate miR-10b in vitro. Our data suggest that miR-10b is upregulated by proinflammatory cytokines and may act as a feedback loop to suppress IL-17A by targeting MAP3K7. miR-10b is a potential therapeutic candidate to suppress pathogenic Th17 cell function in patients with AS.
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Affiliation(s)
- L Chen
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - M H Al-Mossawi
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - A Ridley
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - T Sekine
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - A Hammitzsch
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK.,Department of Nephrology, Klinikum rechts der lsar, Technical University of Munich, Munich, Germany
| | - J de Wit
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - D Simone
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - H Shi
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - F Penkava
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - M Kurowska-Stolarska
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, UK
| | - I Pulyakhina
- Wellcome Trust Centre for Human Genetics, Oxford, UK
| | - J C Knight
- Nuffield Department of Medicine, Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK
| | - T J Kim
- Department of Rheumatology, Medical School and Hospital, Chonnam National University, Gwangju, Republic of Korea
| | - P Bowness
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK.,National Institute for Health Research Oxford Musculoskeletal Biomedical Research Unit, Oxford, UK
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18
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Meerwein CM, Sekine T, Veit-Haibach P, Bredell MG, Huber GF, Huellner MW. Multi-slice SPECT/CT vs. lymphoscintigraphy and intraoperative gamma ray probe for sentinel node mapping in HNSCC. Eur Arch Otorhinolaryngol 2016; 274:1633-1642. [PMID: 27837418 DOI: 10.1007/s00405-016-4379-5] [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] [Received: 10/24/2016] [Accepted: 11/08/2016] [Indexed: 10/20/2022]
Abstract
To assess the diagnostic potential of multi-slice single-photon emission computed tomography/computed tomography (SPECT/CT) for preoperative sentinel node (SN) mapping in early stage head and neck squamous cell carcinoma (HNSCC). Retrospective case-control study including data of consecutive HNSCC patients treated between November 2011 and December 2015. The diagnostic accuracy of multi-slice SPECT/CT was assessed with regard to the gold standard intraoperative gamma ray detection probe, using McNemar's test and calculating the area under the ROC curve. Additionally, the hot spot yield of SPECT/CT and planar lymphoscintigraphy (LS) was compared. Compared to the intraoperative gold standard, SPECT/CT showed an overall positive predictive value of 60.3% [confidence interval (CI) 46.6-73.0%)], a negative predictive value of 96.3% (CI 93.6-98.1%), and an accuracy of 90.8% (CI 89.1-92.4%). SPECT/CT detected more hot spots than LS and provided detailed anatomical information as well as relevant additional findings with potential impact on further patient management. Sentinel lymph node biopsy proved to be a reliable and safe procedure with an excellent SN excision rate (97%). Multi-slice SPECT/CT is a highly accurate diagnostic test and matches the gold standard intraoperative gamma ray detection probe.
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Affiliation(s)
- C M Meerwein
- Department of Otorhinolaryngology, University Hospital Zurich, Zurich, Switzerland. .,University of Zurich, Zurich, Switzerland. .,Division of Otorhinolaryngology, Frauenklinikstrasse 24, 8091, Zurich, Switzerland.
| | - T Sekine
- Department of Nuclear Medicine, University Hospital Zurich, Zurich, Switzerland.,University of Zurich, Zurich, Switzerland.,Department of Radiology, Nippon Medical School, Tokyo, Japan
| | - P Veit-Haibach
- Department of Nuclear Medicine, University Hospital Zurich, Zurich, Switzerland.,Department of Diagnostic and Interventional Radiology, University Hospital Zurich, Zurich, Switzerland.,University of Zurich, Zurich, Switzerland
| | - M G Bredell
- Department of Craniomaxillo-Facial Surgery, University Hospital Zurich, Zurich, Switzerland.,University of Zurich, Zurich, Switzerland
| | - G F Huber
- Department of Otorhinolaryngology, University Hospital Zurich, Zurich, Switzerland.,University of Zurich, Zurich, Switzerland
| | - M W Huellner
- Department of Nuclear Medicine, University Hospital Zurich, Zurich, Switzerland.,Department of Neuroradiology, University Hospital Zurich, Zurich, Switzerland.,University of Zurich, Zurich, Switzerland
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19
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Sekine T, Ozaki N, Miyanishi K, Asaumi Y, Kimura T, Albertazzi B, Sato Y, Sakawa Y, Sano T, Sugita S, Matsui T, Kodama R. Shock compression response of forsterite above 250 GPa. Sci Adv 2016; 2:e1600157. [PMID: 27493993 PMCID: PMC4972465 DOI: 10.1126/sciadv.1600157] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 06/30/2016] [Indexed: 06/06/2023]
Abstract
Forsterite (Mg2SiO4) is one of the major planetary materials, and its behavior under extreme conditions is important to understand the interior structure of large planets, such as super-Earths, and large-scale planetary impact events. Previous shock compression measurements of forsterite indicate that it may melt below 200 GPa, but these measurements did not go beyond 200 GPa. We report the shock response of forsterite above ~250 GPa, obtained using the laser shock wave technique. We simultaneously measured the Hugoniot and temperature of shocked forsterite and interpreted the results to suggest the following: (i) incongruent crystallization of MgO at 271 to 285 GPa, (ii) phase transition of MgO at 285 to 344 GPa, and (iii) remelting above ~470 to 500 GPa. These exothermic and endothermic reactions are seen to occur under extreme conditions of pressure and temperature. They indicate complex structural and chemical changes in the system MgO-SiO2 at extreme pressures and temperatures and will affect the way we understand the interior processes of large rocky planets as well as material transformation by impacts in the formation of planetary systems.
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Affiliation(s)
- Toshimori Sekine
- Department of Earth and Planetary Systems Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - Norimasa Ozaki
- Graduate School of Engineering, Osaka University, Suita 565-0871, Japan
- Photon Pioneers Center, Osaka University, Suita 565-0871, Japan
| | - Kohei Miyanishi
- Graduate School of Engineering, Osaka University, Suita 565-0871, Japan
| | - Yuto Asaumi
- Graduate School of Engineering, Osaka University, Suita 565-0871, Japan
| | - Tomoaki Kimura
- Geodynamics Research Center, Ehime University, Matsuyama 790-8577, Japan
| | - Bruno Albertazzi
- Graduate School of Engineering, Osaka University, Suita 565-0871, Japan
| | - Yuya Sato
- Graduate School of Engineering, Osaka University, Suita 565-0871, Japan
| | - Youichi Sakawa
- Institute of Laser Engineering, Osaka University, Suita 565-0871, Japan
| | - Takayoshi Sano
- Institute of Laser Engineering, Osaka University, Suita 565-0871, Japan
| | - Seiji Sugita
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-856, Japan
| | - Takafumi Matsui
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - Ryosuke Kodama
- Graduate School of Engineering, Osaka University, Suita 565-0871, Japan
- Photon Pioneers Center, Osaka University, Suita 565-0871, Japan
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20
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Bigley AB, Rezvani K, Shah N, Sekine T, Balneger N, Pistillo M, Agha N, Kunz H, O'Connor DP, Bollard CM, Simpson RJ. Latent cytomegalovirus infection enhances anti-tumour cytotoxicity through accumulation of NKG2C+ NK cells in healthy humans. Clin Exp Immunol 2016; 185:239-51. [PMID: 26940026 PMCID: PMC4955006 DOI: 10.1111/cei.12785] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [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] [Received: 01/02/2016] [Revised: 02/27/2016] [Accepted: 02/29/2016] [Indexed: 12/22/2022] Open
Abstract
Cytomegalovirus (CMV) infection markedly expands NKG2C+/NKG2A- NK cells, which are potent killers of infected cells expressing human leucocyte antigen (HLA)-E. As HLA-E is also over-expressed in several haematological malignancies and CMV has been linked to a reduced risk of leukaemic relapse, we determined the impact of latent CMV infection on NK cell cytotoxicity against four tumour target cell lines with varying levels of HLA-E expression. NK cell cytotoxicity against K562 (leukaemia origin) and U266 (multiple myeloma origin) target cells was strikingly greater in healthy CMV-seropositive donors than seronegative donors and was associated strongly with target cell HLA-E and NK cell NKG2C expression. NK cell cytotoxicity against HLA-E transfected lymphoma target cells (221.AEH) was ∼threefold higher with CMV, while NK cell cytotoxicity against non-transfected 721.221 cells was identical between the CMV groups. NK cell degranulation (CD107a(+) ) and interferon (IFN)-γ production to 221.AEH cells was localized almost exclusively to the NKG2C subset, and antibody blocking of NKG2C completely eliminated the effect of CMV on NK cell cytotoxicity against 221.AEH cells. Moreover, 221.AEH feeder cells and interleukin (IL)-15 were found to expand NKG2C(+) /NKG2A(-) NK cells preferentially from CMV-seronegative donors and increase NK cell cytotoxicity against HLA-E(+) tumour cell lines. We conclude that latent CMV infection enhances NK cell cytotoxicity through accumulation of NKG2C(+) NK cells, which may be beneficial in preventing the initiation and progression of haematological malignancies characterized by high HLA-E expression.
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Affiliation(s)
- A. B. Bigley
- Laboratory of Integrated Physiology, Department of Health and Human PerformanceUniversity of HoustonHoustonTXUSA
| | - K. Rezvani
- Department of Stem Cell Transplantation, Division of Cancer MedicineThe University of Texas MD Anderson Cancer CenterHoustonTXUSA
| | - N. Shah
- Department of Stem Cell Transplantation, Division of Cancer MedicineThe University of Texas MD Anderson Cancer CenterHoustonTXUSA
| | - T. Sekine
- Department of Stem Cell Transplantation, Division of Cancer MedicineThe University of Texas MD Anderson Cancer CenterHoustonTXUSA
| | - N. Balneger
- Laboratory of Integrated Physiology, Department of Health and Human PerformanceUniversity of HoustonHoustonTXUSA
| | - M. Pistillo
- Laboratory of Integrated Physiology, Department of Health and Human PerformanceUniversity of HoustonHoustonTXUSA
| | - N. Agha
- Laboratory of Integrated Physiology, Department of Health and Human PerformanceUniversity of HoustonHoustonTXUSA
| | - H. Kunz
- Laboratory of Integrated Physiology, Department of Health and Human PerformanceUniversity of HoustonHoustonTXUSA
| | - D. P. O'Connor
- Laboratory of Integrated Physiology, Department of Health and Human PerformanceUniversity of HoustonHoustonTXUSA
| | - C. M. Bollard
- Program for Cell Enhancement and Technologies for Immunotherapy, Sheikh Zayed Institute for Pediatric Surgical Innovation and Center for Cancer and Immunology ResearchChildren's National Health SystemWashingtonDCUSA
| | - R. J. Simpson
- Laboratory of Integrated Physiology, Department of Health and Human PerformanceUniversity of HoustonHoustonTXUSA
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21
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Mori Y, Nishimura Y, Hanayama R, Nakayama S, Ishii K, Kitagawa Y, Sekine T, Sato N, Kurita T, Kawashima T, Kan H, Komeda O, Nishi T, Azuma H, Hioki T, Motohiro T, Sunahara A, Sentoku Y, Miura E. Fast Heating of Imploded Core with Counterbeam Configuration. Phys Rev Lett 2016; 117:055001. [PMID: 27517775 DOI: 10.1103/physrevlett.117.055001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Indexed: 06/06/2023]
Abstract
A tailored-pulse-imploded core with a diameter of 70 μm is flashed by counterirradiating 110 fs, 7 TW laser pulses. Photon emission (>40 eV) from the core exceeds the emission from the imploded core by 6 times, even though the heating pulse energies are only one seventh of the implosion energy. The coupling efficiency from the heating laser to the core using counterirradiation is 14% from the enhancement of photon emission. Neutrons are also produced by counterpropagating fast deuterons accelerated by the photon pressure of the heating pulses. A collisional two-dimensional particle-in-cell simulation reveals that the collisionless two counterpropagating fast-electron currents induce mega-Gauss magnetic filaments in the center of the core due to the Weibel instability. The counterpropagating fast-electron currents are absolutely unstable and independent of the core density and resistivity. Fast electrons with energy below a few MeV are trapped by these filaments in the core region, inducing an additional coupling. This might lead to the observed bright photon emissions.
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Affiliation(s)
- Y Mori
- The Graduate School for the Creation of New Photonics Industries, 1955-1 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - Y Nishimura
- The Graduate School for the Creation of New Photonics Industries, 1955-1 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - R Hanayama
- The Graduate School for the Creation of New Photonics Industries, 1955-1 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - S Nakayama
- The Graduate School for the Creation of New Photonics Industries, 1955-1 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - K Ishii
- The Graduate School for the Creation of New Photonics Industries, 1955-1 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - Y Kitagawa
- The Graduate School for the Creation of New Photonics Industries, 1955-1 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - T Sekine
- Hamamatsu Photonics, K. K. 1820 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - N Sato
- Hamamatsu Photonics, K. K. 1820 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - T Kurita
- Hamamatsu Photonics, K. K. 1820 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - T Kawashima
- Hamamatsu Photonics, K. K. 1820 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - H Kan
- Hamamatsu Photonics, K. K. 1820 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - O Komeda
- Advanced Material Engineering Division, Toyota Motor Corporation, 1200 Mishuku, Susono, Shizuoka 410-1193, Japan
| | - T Nishi
- Toyota Central Research and Development Laboratories, Inc., 41-1 Yokomichi, Nagakute, Aichi 480-1192, Japan
| | - H Azuma
- Aichi Synchrotron Radiation Center, Minamiyamaguchi-cho, Seto-shi, Aichi-ken 489-0965, Japan
| | - T Hioki
- Green Mobility Collaborative Research Center, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
| | - T Motohiro
- Green Mobility Collaborative Research Center, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
| | - A Sunahara
- Institute for Laser Technology, 1-8-4 Utsubo-honmachi, Nishi-ku, Osaka 550-0004, Japan
| | - Y Sentoku
- Department of Physics, University of Nevada, Reno, 1664 North Virginia Street, Reno, Nevada 89557, USA
| | - E Miura
- National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
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22
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Zhang Y, Sekine T, He H, Yu Y, Liu F, Zhang M. Experimental constraints on light elements in the Earth's outer core. Sci Rep 2016; 6:22473. [PMID: 26932596 PMCID: PMC4773879 DOI: 10.1038/srep22473] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [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: 07/16/2015] [Accepted: 02/16/2016] [Indexed: 11/09/2022] Open
Abstract
Earth's outer core is liquid and dominantly composed of iron and nickel (~5-10 wt%). Its density, however, is ~8% lower than that of liquid iron, and requires the presence of a significant amount of light element(s). A good way to specify the light element(s) is a direct comparison of density and sound velocity measurements between seismological data and those of possible candidate compositions at the core conditions. We report the sound velocity measurements of a model core composition in the Fe-Ni-Si system at the outer core conditions by shock-wave experiments. Combining with the previous studies, we found that the best estimate for the outer core's light elements is ~6 wt% Si, ~2 wt% S, and possible ~1-2.5 wt% O. This composition satisfies the requirements imposed by seismology, geochemistry, and some models of the early core formation. This finding may help us to further constrain the thermal structure of the Earth and the models of Earth's core formation.
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Affiliation(s)
- Youjun Zhang
- Department of Earth and Planetary Systems Science, Hiroshima University, Kagamiyama 1-3-1, Higashi-Hiroshima 739-8526, Japan
| | - Toshimori Sekine
- Department of Earth and Planetary Systems Science, Hiroshima University, Kagamiyama 1-3-1, Higashi-Hiroshima 739-8526, Japan
| | - Hongliang He
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, PO Box 919-111, Mianyang 621900, China
| | - Yin Yu
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, PO Box 919-111, Mianyang 621900, China
| | - Fusheng Liu
- College of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031, China
| | - Mingjian Zhang
- College of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031, China
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23
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Hashimoto J, Hamasaki Y, Yanagisawa T, Sekine T, Aikawa A, Shishido S. Successful Kidney Transplantation in Epstein Syndrome With Antiplatelet Antibodies and Donor-specific Antibodies: A Case Report. Transplant Proc 2015; 47:2541-3. [DOI: 10.1016/j.transproceed.2015.09.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Accepted: 09/02/2015] [Indexed: 11/30/2022]
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24
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Kitagawa Y, Mori Y, Komeda O, Ishii K, Hanayama R, Fujita K, Okihara S, Sekine T, Satoh N, Kurita T, Takagi M, Watari T, Kawashima T, Kan H, Nishimura Y, Sunahara A, Sentoku Y, Nakamura N, Kondo T, Fujine M, Azuma H, Motohiro T, Hioki T, Kakeno M, Miura E, Arikawa Y, Nagai T, Abe Y, Ozaki S, Noda A. Direct heating of a laser-imploded core by ultraintense laser-driven ions. Phys Rev Lett 2015; 114:195002. [PMID: 26024175 DOI: 10.1103/physrevlett.114.195002] [Citation(s) in RCA: 3] [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: 10/25/2013] [Indexed: 06/04/2023]
Abstract
A novel direct core heating fusion process is introduced, in which a preimploded core is predominantly heated by energetic ions driven by LFEX, an extremely energetic ultrashort pulse laser. Consequently, we have observed the D(d,n)^{3}He-reacted neutrons (DD beam-fusion neutrons) with the yield of 5×10^{8} n/4π sr. Examination of the beam-fusion neutrons verified that the ions directly collide with the core plasma. While the hot electrons heat the whole core volume, the energetic ions deposit their energies locally in the core, forming hot spots for fuel ignition. As evidenced in the spectrum, the process simultaneously excited thermal neutrons with the yield of 6×10^{7} n/4π sr, raising the local core temperature from 0.8 to 1.8 keV. A one-dimensional hydrocode STAR 1D explains the shell implosion dynamics including the beam fusion and thermal fusion initiated by fast deuterons and carbon ions. A two-dimensional collisional particle-in-cell code predicts the core heating due to resistive processes driven by hot electrons, and also the generation of fast ions, which could be an additional heating source when they reach the core. Since the core density is limited to 2 g/cm^{3} in the current experiment, neither hot electrons nor fast ions can efficiently deposit their energy and the neutron yield remains low. In future work, we will achieve the higher core density (>10 g/cm^{3}); then hot electrons could contribute more to the core heating via drag heating. Together with hot electrons, the ion contribution to fast ignition is indispensable for realizing high-gain fusion. By virtue of its core heating and ignition, the proposed scheme can potentially achieve high gain fusion.
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Affiliation(s)
- Y Kitagawa
- The Graduate School for the Creation of New Photonics Industries, Kurematsucho, 1955-1 Nishi-ku, Hamamatsu 431-1202 Japan
| | - Y Mori
- The Graduate School for the Creation of New Photonics Industries, Kurematsucho, 1955-1 Nishi-ku, Hamamatsu 431-1202 Japan
| | - O Komeda
- The Graduate School for the Creation of New Photonics Industries, Kurematsucho, 1955-1 Nishi-ku, Hamamatsu 431-1202 Japan
| | - K Ishii
- The Graduate School for the Creation of New Photonics Industries, Kurematsucho, 1955-1 Nishi-ku, Hamamatsu 431-1202 Japan
| | - R Hanayama
- The Graduate School for the Creation of New Photonics Industries, Kurematsucho, 1955-1 Nishi-ku, Hamamatsu 431-1202 Japan
| | - K Fujita
- The Graduate School for the Creation of New Photonics Industries, Kurematsucho, 1955-1 Nishi-ku, Hamamatsu 431-1202 Japan
| | - S Okihara
- The Graduate School for the Creation of New Photonics Industries, Kurematsucho, 1955-1 Nishi-ku, Hamamatsu 431-1202 Japan
| | - T Sekine
- Hamamatsu Photonics, K. K. Kurematsucho, 1820 Nishi-ku, Hamamatsu 431-1202, Japan
| | - N Satoh
- Hamamatsu Photonics, K. K. Kurematsucho, 1820 Nishi-ku, Hamamatsu 431-1202, Japan
| | - T Kurita
- Hamamatsu Photonics, K. K. Kurematsucho, 1820 Nishi-ku, Hamamatsu 431-1202, Japan
| | - M Takagi
- Hamamatsu Photonics, K. K. Kurematsucho, 1820 Nishi-ku, Hamamatsu 431-1202, Japan
| | - T Watari
- Hamamatsu Photonics, K. K. Kurematsucho, 1820 Nishi-ku, Hamamatsu 431-1202, Japan
| | - T Kawashima
- Hamamatsu Photonics, K. K. Kurematsucho, 1820 Nishi-ku, Hamamatsu 431-1202, Japan
| | - H Kan
- Hamamatsu Photonics, K. K. Kurematsucho, 1820 Nishi-ku, Hamamatsu 431-1202, Japan
| | - Y Nishimura
- Toyota Technical Development Corp., 1-21 Imae, Hanamoto-cho, Toyota, Aichi 470-0334, Japan
| | - A Sunahara
- Institute for Laser Technology, 1-8-4 Utsubo-honmachi, Nishi-ku, Osaka 550-0004, Japan
| | - Y Sentoku
- Department of Physics, University of Nevada, Reno 1664 N Virginia Street, Reno, Nevada 89557, USA
| | - N Nakamura
- Advanced Material Engineering Division, TOYOTA Motor Corporation, 1200, Mishuku, Susono, Shizuoka 410-1193, Japan
| | - T Kondo
- Advanced Material Engineering Division, TOYOTA Motor Corporation, 1200, Mishuku, Susono, Shizuoka 410-1193, Japan
| | - M Fujine
- Advanced Material Engineering Division, TOYOTA Motor Corporation, 1200, Mishuku, Susono, Shizuoka 410-1193, Japan
| | - H Azuma
- TOYOTA Central Research and Development Laboratories, Inc., 41-1 Yokomichi, Nagakute-cho, Aichi, Japan
| | - T Motohiro
- TOYOTA Central Research and Development Laboratories, Inc., 41-1 Yokomichi, Nagakute-cho, Aichi, Japan
| | - T Hioki
- TOYOTA Central Research and Development Laboratories, Inc., 41-1 Yokomichi, Nagakute-cho, Aichi, Japan
| | - M Kakeno
- TOYOTA Central Research and Development Laboratories, Inc., 41-1 Yokomichi, Nagakute-cho, Aichi, Japan
| | - E Miura
- National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
| | - Y Arikawa
- Institute of laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka 565, Japan
| | - T Nagai
- Institute of laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka 565, Japan
| | - Y Abe
- Institute of laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka 565, Japan
| | - S Ozaki
- National Institute for Fusion Science, 322-6 Oroshi Toki, Gifu 509-5292, Japan
| | - A Noda
- Advanced Research Center for Beam Science, Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
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Sekine T, Hosoyamada M, Haga-Mizuno A, Takeda M, Suzuki M, Obinata M, Endou H. Ammonia production in cell lines established from transgenic mice harboring temperature-sensitive simian virus 40 large T-antigen gene. Contrib Nephrol 2015; 110:98-102. [PMID: 7956264 DOI: 10.1159/000423404] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- T Sekine
- Department of Pharmacology and Toxicology, Kyorin University, Tokyo, Japan
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Affiliation(s)
- A. Mutalib
- Department of Chemistry, Tohoku University, Sendai 980, Japan
| | - T. Sekine
- Department of Chemistry, Tohoku University, Sendai 980, Japan
| | - T. Omori
- Research Laboratory, Faculty of Science, Shizuoka University, Shizuoka 422, Japan
| | - K. Yoshihara
- Department of Chemistry, Tohoku University, Sendai 980, Japan
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27
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Affiliation(s)
- A. Mutalib
- Department of Chemistry, Faculty of Science, Tohoku University, Sendai 980, Japan
| | - T. Sekine
- Department of Chemistry, Faculty of Science, Tohoku University, Sendai 980, Japan
| | - T. Omori
- Research Laboratory, Faculty of Science, Shizuoka University, Shizuoka 422, Japan
| | - K. Yoshihara
- Department of Chemistry, Faculty of Science, Tohoku University, Sendai 980, Japan
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28
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Affiliation(s)
- T. Sekine
- Department of Chemistry, Faculty of Science, Tohoku University, Sendai 980, Japan
| | - A. Watanabe
- Department of Chemistry, Faculty of Science, Tohoku University, Sendai 980, Japan
| | - K. Yoshihara
- Department of Chemistry, Faculty of Science, Tohoku University, Sendai 980, Japan
| | - J. I. Kim
- Institut für Radiochemie, Technische Universität München, 85748 Garching, Germany
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Fujita T, Sekine T, Hiraga H, Yoshihara K, Mutalib A, Alberto R, Kim JI. Determination of Technetium by Laser Induced Photoacoustic Spectroscopy Coupled with a Wave-Length Shifter Method. RADIOCHIM ACTA 2013. [DOI: 10.1524/ract.1993.63.special-issue.45] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- T. Fujita
- Department of Chemistry, Faculty of Science, Tohoku University, Sendai 980, Japan
| | - T. Sekine
- Department of Chemistry, Faculty of Science, Tohoku University, Sendai 980, Japan
| | - H. Hiraga
- Department of Chemistry, Faculty of Science, Tohoku University, Sendai 980, Japan
| | - K. Yoshihara
- Department of Chemistry, Faculty of Science, Tohoku University, Sendai 980, Japan
| | - A. Mutalib
- Department of Chemistry, Faculty of Science, Tohoku University, Sendai 980, Japan
| | - R. Alberto
- Labor für Radiopharmazie, Paul Scherrer Institut, CH 5232 Villigen, Switzerland
| | - J. I. Kim
- Institut für Radiochemie, Technische Universität München, D-8046 Garching, Germany
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Nakamura T, Tomeoka K, Sekine T, Takeda H. Impact-induced chondrule flattening in the Allende CV3 carbonaceous chondrite: Shock experiments. ACTA ACUST UNITED AC 2012. [DOI: 10.1111/j.1945-5100.1995.tb01133.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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32
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Kitagawa Y, Mori Y, Komeda O, Ishii K, Hanayama R, Fujita K, Okihara S, Sekine T, Satoh N, Kurita T, Takagi M, Kawashima T, Kan H, Nakamura N, Kondo T, Fujine M, Azuma H, Motohiro T, Hioki T, Nishimura Y, Sunahara A, Sentoku Y. Fusion using fast heating of a compactly imploded CD core. Phys Rev Lett 2012; 108:155001. [PMID: 22587260 DOI: 10.1103/physrevlett.108.155001] [Citation(s) in RCA: 3] [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: 09/12/2011] [Indexed: 05/31/2023]
Abstract
A compact fast core heating experiment is described. A 4-J 0.4-ns output of a laser-diode-pumped high-repetition laser HAMA is divided into four beams, two of which counterilluminate double-deuterated polystyrene foils separated by 100 μm for implosion. The remaining two beams, compressed to 110 fs for fast heating, illuminate the same paths. Hot electrons produced by the heating pulses heat the imploded core, emitting x-ray radiations >20 eV and yielding some 10(3) thermal neutrons.
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Affiliation(s)
- Y Kitagawa
- The Graduate School for the Creation of New Photonics Industries, Kurematsuchou, 1955-1 Nishi-ku, Hamamatsu 431-1202 Japan.
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33
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Ooka M, Iizuka Y, Nomoto N, Fujioka T, Shimizu N, Sekine T, Kohda E. Fabry Disease Presenting with Multiple Hemorrhagic Cerebral Infarction. Neuroradiol J 2012; 25:30-5. [DOI: 10.1177/197140091202500104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2011] [Accepted: 10/25/2011] [Indexed: 11/15/2022] Open
Abstract
We describe a 57-year-old woman, a heterozygote for Fabry disease who had multiple hemorrhagic cerebral infarctions. Her clinical course and radiological findings suggested cardiogenic cerebral embolus, but distinction from multiple cerebral infarction associated with Fabry disease seemed necessary. Our present case is reported with reference to the literature to introduce various types of stroke, which can develop in patients with Fabry disease.
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Affiliation(s)
- M. Ooka
- Department of Radiology, Toho University Ohashi Medical Center; Tokyo, Japan
| | - Y. Iizuka
- Department of Radiology, Toho University Ohashi Medical Center; Tokyo, Japan
| | - N. Nomoto
- Department of Neurology, Toho University Ohashi Medical Center; Tokyo, Japan
| | - T. Fujioka
- Department of Neurology, Toho University Ohashi Medical Center; Tokyo, Japan
| | - N. Shimizu
- Department of Pediatrics, Toho University Ohashi Medical Center; Tokyo, Japan
| | - T. Sekine
- Department of Pediatrics, Toho University Ohashi Medical Center; Tokyo, Japan
| | - E. Kohda
- Department of Radiology, Toho University Ohashi Medical Center; Tokyo, Japan
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Zakir M, Sekine T. Sonolytic Oxidation of Tc(IV)O<sub>2</sub>nH<sub>2</sub>O Nanoparticles to Tc(VII)O<sub>4</sub> in Aqueous Solution. Atom Indo 2010. [DOI: 10.17146/aij.2010.7] [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: 11/09/2022] Open
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35
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Kuroe H, Hamasaki T, Sekine T, Hase M, Oka K, Ito T, Eisaki H, Matsuda M. Triplon-spinon hybridization in Cu3Mo2O9observed using inelastic neutron scattering. ACTA ACUST UNITED AC 2010. [DOI: 10.1088/1742-6596/200/2/022028] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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36
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Hamasaki T, Kuroe H, Sekine T, Hase M, Kitazawa H. Low-temperature magnetization of the low-dimensional magnet Cu3Mo2O9under high magnetic fields. ACTA ACUST UNITED AC 2009. [DOI: 10.1088/1742-6596/150/4/042047] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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37
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Ikeda K, Kano O, Ito H, Kawase Y, Iwamoto K, Sato R, Sekine T, Nagata R, Nakamura Y, Hirayama T, Iwasaki Y, Plante-Bordeneuve V, Said G. Diagnostic pitfalls in sporadic transthyretin familial amyloid polyneuropathy (TTR-FAP). Neurology 2008; 70:1576; author reply 1576-7. [DOI: 10.1212/01.wnl.0000317143.41209.fd] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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38
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Nozu K, Inagaki T, Fu XJ, Nozu Y, Kaito H, Kanda K, Sekine T, Igarashi T, Nakanishi K, Yoshikawa N, Iijima K, Matsuo M. Molecular analysis of digenic inheritance in Bartter syndrome with sensorineural deafness. J Med Genet 2008; 45:182-6. [PMID: 18310267 DOI: 10.1136/jmg.2007.052944] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Bartter syndrome (BS) is a genetic disorder accompanied by hypokalaemic metabolic alkalosis. BS with sensorineural deafness (SND, OMIM602522) is a newly identified phenotype caused by mutations in the BSND gene that encodes barttin, a beta-subunit for chloride channel ClC-Ka and ClC-Kb and classified as type IV BS. Type IV BS features the most severe phenotype entailing life-threatening neonatal volume depletion and chronic renal failure developing during infancy. A recent report described a case of BS with SND from a consanguineous family who showed homozygous mutations in the CLCNKA and CLCNKB genes. This case indicated the possibility of the occurrence of digenic inheritance in BS with SND resulting from double mutations in the CLCNKA and CLCNKB genes. SUBJECT AND RESULTS The current report concerns a 2-year-old girl from a non-consanguineous family with BS accompanied by SND. In our case, four loss-of-function mutations, consisting of mutations in both parental alleles in both CLCNKA and CLCNKB, were identified. The paternal allele had a nonsense mutation (Q260X) in CLCNKA and a splicing site mutation (IVS17+1 g>a) in CLCNKB. The maternal allele had a large deletion mutation (about 12 kbp) extending from CLCNKA to CLCNKB. Our case provides clear evidence that loss-of-function alleles in both alleles of both CLCNKA and CLCNKB results in a phenotype indistinguishable from that of mutations in BSND (type IV BS). CONCLUSIONS Recent advances in genetics have resulted in a better understanding of many human inherited diseases, but most of them are monogenic disorders and more complex inheritance patterns remain unresolved. Our case provides clear evidence of digenic inheritance outside the scope of Mendelian inheritance disorders.
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Affiliation(s)
- K Nozu
- Department of Pediatrics, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan.
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39
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Sakamoto J, Sekine T. [Pulmonary pleomorphic carcinoma with rapid and peculiar metastases; report of a case]. Kyobu Geka 2007; 60:253-7. [PMID: 17352146] [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: 05/14/2023]
Abstract
A 54-year-old man was pointed out a mass shadow during treatment of suspected acute pyothorax. He was diagnosed as large cell carcinoma by transbronchial biopsy. Preoperative chemotherapy and right lower lobectomy were done. In pathological examination, he was diagnosed as pulmonary pleomorpic carcinoma. Postoperatively, he had rapid metastases of the pancreas, skin, muscle, brain and oral cavity. We reported a case of pulmonary pleomorphic carcinoma with rapid and peculiar metastases.
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Affiliation(s)
- Jin Sakamoto
- Department of Thoracic Surgery, Shimane Prefectural Central Hospital, Izumo, Japan
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Xiang Y, Masuko-Hongo K, Sekine T, Nakamura H, Yudoh K, Nishioka K, Kato T. Expression of proteinase-activated receptors (PAR)-2 in articular chondrocytes is modulated by IL-1beta, TNF-alpha and TGF-beta. Osteoarthritis Cartilage 2006; 14:1163-73. [PMID: 16757188 DOI: 10.1016/j.joca.2006.04.015] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2005] [Accepted: 04/18/2006] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To investigate the modulation of expression of proteinase-activated receptor-2 (PAR-2) in articular chondrocytes by inflammatory cytokines. DESIGN Articular synovium and cartilage tissues were collected from eight patients with osteoarthritis (OA), and three patients without arthropathy ("normal"). Chondrocytes were stimulated with interleukin (IL)-1beta, tumor necrosis factor (TNF)-alpha or transforming growth factor (TGF)-beta1. The expression of PAR-2 was detected using reverse transcriptase-polymerase chain reaction (PCR), Western blotting and immunofluorescence. Quantitative PCR was performed to assess the expression levels of PAR-2 messenger RNA (mRNA). RESULTS The expression of PAR-2 mRNA was demonstrated in both OA and normal chondrocytes as well as in synovial fibroblasts. However, the level of PAR-2 in OA chondrocytes was much higher than in normal chondrocytes. Long-term culture revealed that PAR-2 mRNA expression was maintained up to three passages in OA but not in normal chondrocytes. IL-1beta and TNF-alpha both upregulated PAR-2 expression in normal and OA chondrocytes. In contrast, TGF-beta1 significantly decreased expression of PAR-2 in OA chondrocytes but increased PAR-2 in normal chondrocytes. CONCLUSIONS Overexpression of PAR-2 in OA chondrocytes is upregulated by proinflammatory cytokines IL-1beta and TNF-alpha, and down-regulated by regulatory cytokine TGF-beta1. PAR-2 may be involved in the pathogenesis of OA.
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Affiliation(s)
- Y Xiang
- Department of Bioregulation and Proteomics, Institute of Medical Science, St. Marianna University School of Medicine, Kawasaki, Japan
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41
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Funabashi N, Sekine T, Komuro I. Idiopathic diverticulum-type enlargement of the right atrium demonstrated by multislice computed tomography. Heart 2006; 92:1144. [PMID: 16844866 PMCID: PMC1861083 DOI: 10.1136/hrt.2005.076604] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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42
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Kobayashi T, Sekine T. Laser ablation of yttrium-containing oxides in various ambient gases studied by time-resolved emission spectroscopy. Chem Phys Lett 2006. [DOI: 10.1016/j.cplett.2006.04.056] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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43
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Mashimo T, Chau R, Zhang Y, Kobayoshi T, Sekine T, Fukuoka K, Syono Y, Kodama M, Nellis WJ. Transition to a virtually incompressible oxide phase at a shock pressure of 120 GPa (1.2 Mbar): Gd3Ga5O12. Phys Rev Lett 2006; 96:105504. [PMID: 16605758 DOI: 10.1103/physrevlett.96.105504] [Citation(s) in RCA: 5] [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: 01/03/2006] [Indexed: 05/08/2023]
Abstract
Cubic, single-crystal, transparent Gd(3)Ga(5)O(12) has a density of 7.10 g/cm(3), a Hugoniot elastic limit of 30 GPa, and undergoes a continuous phase transition from 65 GPa to a quasi-incompressible (QI) phase at 120 GPa. Only diamond has a larger Hugoniot elastic limit. The QI phase of is more incompressible than diamond from 170 to 260 GPa. Electrical conductivity measurements indicate the QI phase has a band gap of 3.1 eV. Gd(3)Ga(5)O(12) can be used to obtain substantially higher pressures and lower temperatures in metallic fluid hydrogen than was achieved previously by shock reverberation between Al(2)O(3) disks.
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Affiliation(s)
- T Mashimo
- Shock Wave and Condensed Matter Research Center, Kumamoto University, Kumamoto 860-8555, Japan
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44
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Kawata T, Daimon M, Hasegawa R, Teramoto K, Toyoda T, Sekine T, Yamamoto K, Uchida D, Himi T, Yoshida K, Komuro I. Serum asymmetric dimethylarginine as a marker of coronary microcirculation in patients with non-insulin dependent diabetes mellitus: correlation with coronary flow reserve. Heart 2006; 91:1607-8. [PMID: 16287749 PMCID: PMC1769209 DOI: 10.1136/hrt.2004.051011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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45
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Zhu YQ, Sekine T, Li YH, Fay MW, Zhao YM, Patrick Poa CH, Wang WX, Roe MJ, Brown PD, Fleischer N, Tenne R. Shock-Absorbing and Failure Mechanisms of WS2 and MoS2 Nanoparticles with Fullerene-like Structures under Shock Wave Pressure. J Am Chem Soc 2005; 127:16263-72. [PMID: 16287319 DOI: 10.1021/ja054715j] [Citation(s) in RCA: 93] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The excellent shock-absorbing performance of WS2 and MoS2 nanoparticles with inorganic fullerene-like structures (IFs) under very high shock wave pressures of 25 GPa is described. The combined techniques of X-ray diffraction, Raman spectroscopy, X-ray photoelectron spectroscopy, thermal analysis, and transmission electron microscopy have been used to evaluate the diverse, intriguing features of shock recovered IFs, of interest for their tribological applications, thereby allowing improved understanding of their antishock behavior and structure-property relationships. Two possible failure mechanisms are proposed and discussed. The supershock-absorbing ability of the IF-WS2 enables them to survive pressures up to 25 GPa accompanied with concurrent temperatures of up to 1000 degrees C without any significant structural degradation or phase change making them probably the strongest cage molecules now known.
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Affiliation(s)
- Yan Qiu Zhu
- School of Mechanical, Materials and Manufacturing Engineering, and School of Chemistry, University of Nottingham, University Park Nottingham NG7 2RD, UK.
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Saito T, Tatematsu Y, Ikegami H, Sekine T, Nagai D, Nozaki K, Cho T, Hirata M, Hojo H, Ishii K, Numakura T, Sakamoto K, Takemura Y, Yoshida M. High Power Electron Heating Experiments at the Plug Region of GAMMA 10. Fusion Science and Technology 2005. [DOI: 10.13182/fst05-a615] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Saito
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Tatematsu
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - H. Ikegami
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Sekine
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - D. Nagai
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - K. Nozaki
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Cho
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Hirata
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - H. Hojo
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - K. Ishii
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Numakura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - K. Sakamoto
- Naka Fusion Research Establishment, JAERI, Naka, Ibaraki 311-0193, Japan
| | - Y. Takemura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Yoshida
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
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47
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Sekine T, Narushima H, Suzuki T, Takayama T, Kudo H, Lin M, Katsumura Y. Technetium(IV) oxide colloids produced by radiolytic reactions in aqueous pertechnetate solution. Colloids Surf A Physicochem Eng Asp 2004. [DOI: 10.1016/j.colsurfa.2004.08.074] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Matsuyama T, Awazu M, Oikawa T, Inatomi J, Sekine T, Igarashi T. Molecular and clinical studies of Dent's disease in Japan: biochemical examination and renal ultrasonography do not predict carrier state. Clin Nephrol 2004; 61:231-7. [PMID: 15125028 DOI: 10.5414/cnp61231] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Dent's disease is an X-linked renal tubular disorder characterized by low-molecular-weight-proteinuria, hypercalciuria, nephrolithiasis and renal failure. The disease is due to inactivation of a renal chloride channel gene, CLCN5. We have investigated 3 unrelated Japanese families for CLCN5 mutations and assessed the carrier mothers biochemically and ultrasonogaraphically to ascertain whether these clinical examinations can predict the carrier state of the disease. MATERIAL AND METHODS Twelve members from these families were studied biochemically and ultrasonographically. Leukocyte DNA from probands was used with CLCN5-specific primers for PCR amplification of the coding region and exon-intron boundaries, and the DNA sequences of the products determined to identify abnormalities in the gene. RESULTS Three novel CLCN5 mutations consisting of a single base "A" insertion between nucleotides 590 and 591, a nonsense mutation (R28X) and a missense mutation (G506R) were exhibited. Hypophosphatemia was detected in 2 patients, beta2-microglobulinuria, alpha1-microglobulinuria, and hyperretinol binding proteinuria in 6 patients, hypercalciuria in 5 patients, decreased urine osmolality in 3 patients, and nephrocalcinosis or nephrolithiasis in 4 patients. Biochemical analysis of the urine and the renal ultrasonography in each carrier mother were completely normal. CONCLUSIONS Neither urinary low-molecular-weight-proteins, urinary calcium to creatinine ratio, nor renal ultrasonography was predictive of carrier state in the 3 families with this disease, although each carrier mother had CLCN5 mutation. Hypophosphatemia and decreased urine osmolality might be a hint to suspect the carrier state of Dent's disease, although these findings are not found frequently.
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Affiliation(s)
- T Matsuyama
- Department of Pediatrics, Fussa Hospital, Fussa City, Tokyo, Japan.
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Funabashi N, Sekine T, Komuro I. Patency of the left subclavian artery following implantation of stent graft to rectify a stenosis, as demonstrated by multislice computed tomography. Heart 2004; 90:362. [PMID: 15020497 PMCID: PMC1768179 DOI: 10.1136/hrt.2003.024471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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