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Chung C, Choi S, Bae J, Jeong H, Lee J, Lee H. Developing and Validating a Korean Version of the Assessment of Children's Emotional Skills. Child Psychiatry Hum Dev 2024; 55:819-830. [PMID: 36229629 PMCID: PMC11061020 DOI: 10.1007/s10578-022-01452-2] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/24/2022] [Indexed: 11/24/2022]
Abstract
In this study, a Korean Assessment of Children's Emotional Skills (ACES) was developed by modifying the original ACES which was initially introduced in the United States. Specifically, the original ACES was translated into Korean and revised to better fit the Korean cultural context. The content validity of the revised Korean ACES was established via expert reviews. To test its reliability, the revised Korean ACES was conducted on 286 six-year-old children. A confirmatory factor analysis indicated that our newly developed Korean ACES can be used as an appropriate tool to measure Korean children's emotional skills. The Korean ACES can stimulate further studies on these emotional skills and contribute to various international collaborative studies that seek to compare the emotional skills of children from diverse cultural backgrounds.
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Affiliation(s)
- C Chung
- School of Child Studies, Kyungpook National University, Daegu, South Korea
| | - S Choi
- Department of English Education, Kyungpook National University, Daegu, South Korea
| | - J Bae
- Department of English Education, Kyungpook National University, Daegu, South Korea
| | - H Jeong
- Department of Early Childhood Education, Keimyung College University, Daegu, South Korea
| | - J Lee
- School of Child Studies, Kyungpook National University, Daegu, South Korea
| | - H Lee
- Department of Home Economics Education, Kyungpook National University, Daegu, South Korea.
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Lee M, Jeong H, Lee C, Lee MJ, Delmo BR, Heo WD, Shin JH, Park Y. High-resolution assessment of multidimensional cellular mechanics using label-free refractive-index traction force microscopy. Commun Biol 2024; 7:115. [PMID: 38245624 PMCID: PMC10799850 DOI: 10.1038/s42003-024-05788-4] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 01/03/2024] [Indexed: 01/22/2024] Open
Abstract
A critical requirement for studying cell mechanics is three-dimensional assessment of cellular shapes and forces with high spatiotemporal resolution. Traction force microscopy with fluorescence imaging enables the measurement of cellular forces, but it is limited by photobleaching and a slow acquisition speed. Here, we present refractive-index traction force microscopy (RI-TFM), which simultaneously quantifies the volumetric morphology and traction force of cells using a high-speed illumination scheme with 0.5-Hz temporal resolution. Without labelling, our method enables quantitative analyses of dry-mass distributions and shear (in-plane) and normal (out-of-plane) tractions of single cells on the extracellular matrix. When combined with a constrained total variation-based deconvolution algorithm, it provides 0.55-Pa shear and 1.59-Pa normal traction sensitivity for a 1-kPa hydrogel substrate. We demonstrate its utility by assessing the effects of compromised intracellular stress and capturing the rapid dynamics of cellular junction formation in the spatiotemporal changes in non-planar traction components.
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Affiliation(s)
- Moosung Lee
- Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, South Korea
- KAIST Institute for Health Science and Technology, KAIST, Daejeon, 34141, South Korea
- Institute for Functional Matter and Quantum Technologies, Universität Stuttgart, 70569, Stuttgart, Germany
| | - Hyuntae Jeong
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, South Korea
| | - Chaeyeon Lee
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, South Korea
| | - Mahn Jae Lee
- KAIST Institute for Health Science and Technology, KAIST, Daejeon, 34141, South Korea
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, South Korea
| | - Benedict Reve Delmo
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, South Korea
| | - Won Do Heo
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, South Korea.
- KAIST Institute for the BioCentury (KIB), KAIST, Jaejeo, Daejeon, 34141, South Korea.
| | - Jennifer H Shin
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, South Korea.
| | - YongKeun Park
- Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, South Korea.
- KAIST Institute for Health Science and Technology, KAIST, Daejeon, 34141, South Korea.
- Tomocube Inc., Daejeon, 34109, South Korea.
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Zhu G, Combs NG, Salmani-Rezaie S, Jeong H, Russell R, Harter JW, Stemmer S. Probing Local Symmetry Breaking in a Ferroelectric Superconductor. Microsc Microanal 2023; 29:1628. [PMID: 37613823 DOI: 10.1093/micmic/ozad067.836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Affiliation(s)
- G Zhu
- Materials Department, University of California, Santa Barbara, California, United States
| | - N G Combs
- Materials Department, University of California, Santa Barbara, California, United States
| | - S Salmani-Rezaie
- Materials Department, University of California, Santa Barbara, California, United States
| | - H Jeong
- Materials Department, University of California, Santa Barbara, California, United States
| | - R Russell
- Materials Department, University of California, Santa Barbara, California, United States
| | - J W Harter
- Materials Department, University of California, Santa Barbara, California, United States
| | - S Stemmer
- Materials Department, University of California, Santa Barbara, California, United States
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Le KC, Jeong H, Tran TM. Theory of transition from brittle to ductile fracture. Phys Rev E 2023; 107:055006. [PMID: 37328972 DOI: 10.1103/physreve.107.055006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 05/05/2023] [Indexed: 06/18/2023]
Abstract
In this paper, two improvements to the theory of transition from brittle to ductile fracture developed by Langer [J. S. Langer, Phys. Rev. E 103, 063004 (2021)2470-004510.1103/PhysRevE.103.063004] are proposed. First, considering the drastic temperature rise near the crack tip, the temperature dependence of the shear modulus is included to better quantify the thermally sensitive dislocation entanglement. Second, the parameters of the improved theory are identified by the large-scale least-squares method. The comparison between the fracture toughness predicted by the theory and the values obtained in Gumbsch's experiments for tungsten at different temperatures [P. Gumbsch et al., Science 282, 1293 (1998)10.1126/science.282.5392.1293] shows good agreement.
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Affiliation(s)
- K C Le
- Division of Computational Mathematics and Engineering, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City 758307, Vietnam
- Faculty of Civil Engineering, Ton Duc Thang University, Ho Chi Minh City 758307, Vietnam
| | - H Jeong
- Lehrstuhl für Mechanik - Materialtheorie, Ruhr-Universität Bochum, 44801 Bochum, Germany
| | - T M Tran
- Department of Mechanical Engineering, Vietnamese German University, Binh Duong 750000, Vietnam
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Kwon TY, Jeong H, Cho Y, Shin JH. Analysis of the mechanical characteristics of collective skeletal muscle cell migration upon the biochemical environment of injured muscle. Biophys J 2023; 122:268a. [PMID: 36783321 DOI: 10.1016/j.bpj.2022.11.1534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023] Open
Affiliation(s)
- Tae Yoon Kwon
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Hyuntae Jeong
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Youngbin Cho
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Jennifer H Shin
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
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Jeong H, Cho Y, Shin JH. Sequential coupling of phases in unjamming transition of epithelial cells via spatiotemporal analysis on physical phenotypes. Biophys J 2023; 122:531a. [PMID: 36784749 DOI: 10.1016/j.bpj.2022.11.2817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023] Open
Affiliation(s)
- Hyuntae Jeong
- Mechanical Engineering, Korea Advanced Institute of Science & Technology, Daejeon, Republic of Korea
| | - Youngbin Cho
- Korea Advanced Institute of Science & Technology, Daejeon, Republic of Korea
| | - Jennifer H Shin
- Mechanical Engineering, Korea Advanced Institute of Science & Technology, Daejeon, Republic of Korea
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Chung D, Lee J, Yoo S, Choo M, Cho M, Son H, Jeong H. Effect of EphA2 silencing on inhibiting the progression of non-metastatic renal cell carcinoma in an orthotopic mouse model of renal cell carcinoma. EUR UROL SUPPL 2022. [DOI: 10.1016/s2666-1683(22)02455-7] [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: 11/11/2022] Open
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Lucia SE, Jeong H, Shin JH. Cell segregation via differential collision modes between heterotypic cell populations. Mol Biol Cell 2022; 33:ar129. [PMID: 36129759 PMCID: PMC9634969 DOI: 10.1091/mbc.e22-03-0097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
In tissue development and regeneration, the establishment of sharp boundaries between heterotypic cells is essential for the differentiation of tissue functions. During the dynamic rearrangements of constituent cells that result from cell division and collective migration, the segregation boundary encounters various challenges. Several studies have suggested that cortical actomyosin structures play a crucial role in the maintenance of the boundary interface of segregated cell populations, implicating actin-mediated stresses. Examining physical cellular properties such as motility, traction, and intercellular stress, we investigated the formation and maintenance of the stable segregation between epithelial and mesenchymal cell populations devoid of heterotypic adhesions. At the contact boundary, the homotypic adhesion-mediated epithelial aggregates exerted collision-mediated compression against the surrounding mesenchymal cells. Our results demonstrated that heterotypic cell populations established a robust interfacial boundary by accumulating stress from active collisions and repulsions between two dissimilar cell types. Furthermore, the moment of the heterotypic collisions was identified by the existence of a sharp rise in maximum shear stress within the cell cluster.
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Affiliation(s)
- Stephani Edwina Lucia
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Seoul 34141, Republic of Korea
| | - Hyuntae Jeong
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Seoul 34141, Republic of Korea
| | - Jennifer H. Shin
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Seoul 34141, Republic of Korea,*Address correspondence to: Jennifer H. Shin ()
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Chung D, Lee J, Yoo S, Choo M, Cho M, Son H, Jeong H. Role of neutrophil-to-lymphocytes ratio in predicting non-complete response at 3 months evaluation after BCG induction in non-muscle invasive bladder cancer. EUR UROL SUPPL 2022. [DOI: 10.1016/s2666-1683(22)02587-3] [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: 11/11/2022] Open
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Da Costa ADS, Subbiah R, Oh SJ, Jeong H, Na JI, Park K, Choi IS, Shin JH. Fibroblasts Close a Void in Free Space by a Purse-String Mechanism. ACS Appl Mater Interfaces 2022; 14:40522-40534. [PMID: 36036800 DOI: 10.1021/acsami.2c07952] [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: 06/15/2023]
Abstract
The mechanism by which stromal cells fill voids in injured tissue remains a fundamental question in regenerative medicine. While it is well-established that fibroblasts fill voids by depositing extracellular matrix (ECM) proteins as they migrate toward the wound site, little is known about their ability to adopt an epithelial-like purse-string behavior. To investigate fibroblast behavior during gap closure, we created an artificial wound with a large void space. We discovered that fibroblasts could form a free-standing bridge over deep microvoids, closing the void via purse-string contraction, a mechanism previously thought to be unique to epithelial wound closure. The findings also revealed that myosin II mediated contractility and intercellular adherent junctions were required for the closure of the fibroblast gap in our fabricated three-dimensional artificial wound. To fulfill their repair function under the specific microenvironmental conditions of wounds, fibroblasts appeared to acquire the structural features of epithelial cells, namely, contractile actin bundles that span over multiple cells along the boundary. These findings shed light on a novel mechanism by which stromal cells bridge the 3D gap during physiological processes such as morphogenesis and wound healing.
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Affiliation(s)
- Avelino Dos Santos Da Costa
- Center for Biomaterials, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
- Division of Bio-Medical Science and Technology, KIST School, University of Science and Technology (UST), Seoul 02792, Republic of Korea
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Ramesh Subbiah
- Center for Biomaterials, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
- Division of Biomaterials and Biomechanics, Department of Restorative Dentistry, School of Dentistry, Oregon Health and Science University (OHSU), Portland, Oregon 97201, United States
| | - Seung Ja Oh
- Center for Biomaterials, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
- Division of Bio-Medical Science and Technology, KIST School, University of Science and Technology (UST), Seoul 02792, Republic of Korea
| | - Hyuntae Jeong
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Jung-Im Na
- Department of Dermatology, Seoul National University Bundang Hospital, Seongnam 13620, Republic of Korea
| | - Kwideok Park
- Center for Biomaterials, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
- Division of Bio-Medical Science and Technology, KIST School, University of Science and Technology (UST), Seoul 02792, Republic of Korea
| | - In-Suk Choi
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Jennifer H Shin
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
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Kang S, Jeong H, Park J, Kim H, Kim YH, Sang-We K, Lee J, Choi CM, Yoon S, Lee D. 1167P Central nervous systemic efficacy of immune checkpoint inhibitors and concordance between intra/extracranial response in non-small cell lung cancer patients with brain metastasis. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1290] [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: 11/01/2022] Open
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Leppä AM, Grimes K, Jeong H, Boch T, Karpova D, Jauch A, Grünschläger F, Dolnik A, Bullinger L, Krämer A, Sanders AD, Korbel JO, Trumpp A. S123: DECODING TRANSCRIPTOMIC AND EPIGENETIC CONSEQUENCES OF STRUCTURAL VARIANTS IN CK-AML AT SINGLE-CELL RESOLUTION. Hemasphere 2022. [DOI: 10.1097/01.hs9.0000843384.07955.cd] [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: 11/25/2022] Open
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Yoon S, Lim S, Jung H, Kim KP, Kim D, Jeong H, Lim S, Kim J, Kim J, Patel D, Zhao X, Horsburgh D, Yu D, Kim J, Kim S, Lee D. 50P Clinical characteristics, treatment patterns and outcomes of EGFR exon 20 insertion and other EGFR mutations in Korean aNSCLC patients. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.02.059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Jeong H, Shin J, Jeong JH, Kim KP, Hong SM, Kim YI, Ryu JS, Ryoo BY, Yoo C. Capecitabine plus temozolomide in patients with grade 3 unresectable or metastatic gastroenteropancreatic neuroendocrine neoplasms with Ki-67 index <55%: single-arm phase II study. ESMO Open 2021; 6:100119. [PMID: 33901869 PMCID: PMC8099746 DOI: 10.1016/j.esmoop.2021.100119] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 03/21/2021] [Accepted: 03/24/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Grade 3 neuroendocrine neoplasms (NENs) of gastroenteropancreatic (GEP) origin with Ki-67 indices <55% do not respond well to platinum-based chemotherapy. The combination of capecitabine and temozolomide (CAPTEM) has shown favorable responses in grade 1-2 NENs, but has rarely been studied in patients with grade 3 NENs. PATIENTS AND METHODS This open-label, single-arm phase II trial included patients with unresectable or metastatic grade 3 NENs of GEP origin with Ki-67 indices <55% enrolled between June 2017 and July 2020. Patients received oral capecitabine 750 mg/m2 twice daily on days 1 to 14 and oral temozolomide 200 mg/m2 once daily on days 10 to 14 every 4 weeks. Histologic findings were centrally reviewed after the completion of enrollment. The primary endpoint was overall response rate, and the secondary endpoints were progression-free survival (PFS), overall survival (OS), and adverse events. RESULTS Of the 30 patients included in the full analysis set, 1 (3.3%) achieved complete response, 8 (26.7%) had partial responses, and 14 (46.7%) had stable disease, making the overall response rate 30.0%. At a median follow-up of 19.2 months, the median PFS was 5.9 months and the median OS was not reached. Patients with well-differentiated NENs showed significantly better median PFS (9.3 months versus 3.5 months, P = 0.005) and median OS (not reached versus 6.2 months, P = 0.004) than patients with poorly differentiated tumors. Expression of O6-methyl-guanine methyltransferase protein did not correlate with clinical outcomes. The most common grade 3-4 adverse events were thrombocytopenia (10%), anemia (6.7%), and nausea (6.7%). CONCLUSIONS CAPTEM was effective and well tolerated in patients with grade 3 GEP-NENs with Ki-67 indices <55%, with superior efficacy outcomes compared with the historical controls receiving platinum-based chemotherapy.
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Affiliation(s)
- H Jeong
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - J Shin
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - J H Jeong
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - K-P Kim
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - S-M Hong
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Y-I Kim
- Department of Nuclear Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - J-S Ryu
- Department of Nuclear Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - B-Y Ryoo
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
| | - C Yoo
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
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Jeong J, Jeong H, Kim J, Ahn JH, Jung K, Kim SB. 119P Clinical efficacy of everolimus and CDK4/6 inhibitors in hormone receptor-positive, HER2-negative metastatic breast cancer by treatment sequence. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.03.133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Jeong H, Jeong J, Kim J, Ahn JH, Jung K, Koh SJ, Cheon J, Sohn J, Kim G, Lee K, Sim S, Park I, Kim SB. 103P Long-term results and bone-protective effect of everolimus added to letrozole and ovarian function suppression for premenopausal women with hormone receptor-positive, HER2-negative metastatic breast cancer: An updated analysis of the LEO study. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.03.117] [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] Open
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Jeong H, Yim H, Oh I. Efficacy and safety of mesenchymal stem cell treatment in crohn’s disease: a systematic review and meta- analysis. Cytotherapy 2021. [DOI: 10.1016/s1465324921003443] [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: 11/25/2022]
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Noh KJ, Jeong CY, Lim J, Chung S, Kim G, Lim JM, Jeong H. Multi-Path and Group-Loss-Based Network for Speech Emotion Recognition in Multi-Domain Datasets. Sensors (Basel) 2021; 21:s21051579. [PMID: 33668254 PMCID: PMC7956608 DOI: 10.3390/s21051579] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 01/07/2021] [Revised: 02/15/2021] [Accepted: 02/21/2021] [Indexed: 01/01/2023]
Abstract
Speech emotion recognition (SER) is a natural method of recognizing individual emotions in everyday life. To distribute SER models to real-world applications, some key challenges must be overcome, such as the lack of datasets tagged with emotion labels and the weak generalization of the SER model for an unseen target domain. This study proposes a multi-path and group-loss-based network (MPGLN) for SER to support multi-domain adaptation. The proposed model includes a bidirectional long short-term memory-based temporal feature generator and a transferred feature extractor from the pre-trained VGG-like audio classification model (VGGish), and it learns simultaneously based on multiple losses according to the association of emotion labels in the discrete and dimensional models. For the evaluation of the MPGLN SER as applied to multi-cultural domain datasets, the Korean Emotional Speech Database (KESD), including KESDy18 and KESDy19, is constructed, and the English-speaking Interactive Emotional Dyadic Motion Capture database (IEMOCAP) is used. The evaluation of multi-domain adaptation and domain generalization showed 3.7% and 3.5% improvements, respectively, of the F1 score when comparing the performance of MPGLN SER with a baseline SER model that uses a temporal feature generator. We show that the MPGLN SER efficiently supports multi-domain adaptation and reinforces model generalization.
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Chung J, Hong S, Chung H, Seo I, Kwon T, Jeong H, Chung J, Jeon S, Park J, Ha H, Chung B, Song W, Kim Y, Kim S, Lee J. PCN7 Adverse Events (AES) of Advanced Renal CELL Carcinoma (RCC) Patients Treated with Targeted Therapies in Real World Setting in Korea. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.057] [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: 10/23/2022]
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Yoo S, Oh S, Yun J, Kwon O, Suh J, Park J, Choo M, Cho M, Jeong H, Won S, Son H. Optimal high-density lipoprotein cholesterol level for decreasing benign prostatic hyperplasia in men not taking statin medication: A historical cohort study. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33357-7] [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: 10/23/2022] Open
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Moon H, Lee H, Jeong H. P-60 Tolerability of adjuvant chemotherapy with TS-1 or XELOX regimen in elderly patients with stage II or III gastric cancer after D2 gastrectomy. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.04.142] [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: 10/23/2022] Open
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Suh J, Koh Y, Yoo S, Kwon O, Park J, Choo M, Cho S, Cho M, Son H, Jeong H. Development and validation of ensemble machine-learning based web-embedded decision supporting tool for prostate biopsy. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)32669-0] [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: 11/28/2022] Open
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Suh J, Lee J, Yoo S, Park J, Son H, Jeong H, Kim S, Paick J, Cho M. Restoration of cavernosal veno-occlusive function through chronic administration of both a JNK inhibitor and a LIMK2 inhibitor in a rat model of cavernosal nerve injury: A comparison with a PDE5 inhibitor. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33221-3] [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: 10/23/2022] Open
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Yoo S, Suh J, Park J, Cho S, Jeong H, Son H, Oh S, Paick J, Cho M. 329 Does Preoperative Bladder Compliance Affect Long-term Functional Outcomes after Laser Prostatectomy? J Sex Med 2020. [DOI: 10.1016/j.jsxm.2019.11.149] [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: 10/25/2022]
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25
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Bang Y, Jeong H, Im HS, Park S. Prognostic value of metabolic response assessed by 18FDG-PET after induction chemotherapy and after chemoradiotherapy (CRT) in localized esophageal squamous cell carcinoma (ESCC) patients (pts) receiving definite CRT (dCRT). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz247.088] [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: 11/12/2022] Open
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26
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Jeong H, Ahn H, Lee E, Gook J. Usefulness of chest ultrasonography for prediction of pleural adhesion and postoperative severe pain in thoracoscopic surgery. J Cardiothorac Vasc Anesth 2019. [DOI: 10.1053/j.jvca.2019.07.065] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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27
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Moon H, Jeong H. Self-expandable metal stent (SEMS) for esophageal-gastric junction versus pyloric area obstruction in advanced gastric cancer patients: a retrospective, comparative, single-center study. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.063] [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: 11/14/2022] Open
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Lee H, Kim J, Kang S, Moon H, Sung J, Jeong H. Treatment efficacy of endoscopic submucosal dissection for papillary adenocarcinoma-type early gastric cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.117] [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: 11/13/2022] Open
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29
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Kim MD H, Choi Y, Lee M, Jeong H, Lee J, Park H. MON-129 SERUM PHOSPHOROUS IS THE INDEPENDENT RISK FACTOR FOR VASCULAR ACCESS DYSFUNCTION IN HEMODIALYSIS PATIENTS. Kidney Int Rep 2019. [DOI: 10.1016/j.ekir.2019.05.920] [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: 11/26/2022] Open
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Yim H, Jeong H, Hwang G. Efficacies of stem cell therapies for functional improvement of the β cell in patients with diabetes: A systematic review of controlled clinical trials. Cytotherapy 2019. [DOI: 10.1016/j.jcyt.2019.03.410] [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: 11/25/2022]
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31
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Yim H, Jeong H, Oh I. Efficacy and safety of mesenchymal stem cell therapies for patients with multiple sclerosis: a systematic review and single arm meta-analysis. Cytotherapy 2019. [DOI: 10.1016/j.jcyt.2019.03.409] [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: 10/26/2022]
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Ahn D, Teo YS, Jeong H, Bouchard F, Hufnagel F, Karimi E, Koutný D, Řeháček J, Hradil Z, Leuchs G, Sánchez-Soto LL. Adaptive Compressive Tomography with No a priori Information. Phys Rev Lett 2019; 122:100404. [PMID: 30932629 DOI: 10.1103/physrevlett.122.100404] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Indexed: 06/09/2023]
Abstract
Quantum state tomography is both a crucial component in the field of quantum information and computation and a formidable task that requires an incogitable number of measurement configurations as the system dimension grows. We propose and experimentally carry out an intuitive adaptive compressive tomography scheme, inspired by the traditional compressed-sensing protocol in signal recovery, that tremendously reduces the number of configurations needed to uniquely reconstruct any given quantum state without any additional a priori assumption whatsoever (such as rank information, purity, etc.) about the state, apart from its dimension.
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Affiliation(s)
- D Ahn
- Department of Physics and Astronomy, Seoul National University, 08826 Seoul, South Korea
| | - Y S Teo
- Department of Physics and Astronomy, Seoul National University, 08826 Seoul, South Korea
| | - H Jeong
- Department of Physics and Astronomy, Seoul National University, 08826 Seoul, South Korea
| | - F Bouchard
- Physics Department, University of Ottawa, 25 Templeton Street, Ottawa, Ontario, K1N 6N5 Canada
| | - F Hufnagel
- Physics Department, University of Ottawa, 25 Templeton Street, Ottawa, Ontario, K1N 6N5 Canada
| | - E Karimi
- Physics Department, University of Ottawa, 25 Templeton Street, Ottawa, Ontario, K1N 6N5 Canada
| | - D Koutný
- Department of Optics, Palacký University, 17. listopadu 12, 77146 Olomouc, Czech Republic
| | - J Řeháček
- Department of Optics, Palacký University, 17. listopadu 12, 77146 Olomouc, Czech Republic
| | - Z Hradil
- Department of Optics, Palacký University, 17. listopadu 12, 77146 Olomouc, Czech Republic
| | - G Leuchs
- Max-Planck-Institut für die Physik des Lichts, Staudtstraße 2, 91058 Erlangen, Germany
| | - L L Sánchez-Soto
- Max-Planck-Institut für die Physik des Lichts, Staudtstraße 2, 91058 Erlangen, Germany
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Bae S, Yu J, Jeong H, Oh T. Anti-pruritic effect of topical capsaicin against histamine-induced pruritus on canine skin. Pol J Vet Sci 2019; 21:789-796. [PMID: 30605274 DOI: 10.24425/pjvs.2018.125599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Several human studies have reported that capsaicin has anti-pruritic effects. Moreover, sever- al concentrations of topical capsaicin have been used to alleviate itch. The aim of this study was to investigate the anti-pruritic effect of capsaicin against histamine-induced pruritus compared with that of topical steroid or vehicle in 15 healthy beagles. Fifteen dogs were divided into three groups (n = 5 each), and treated topically with one of the following on the left side of the neck: capsaicin, positive control (steroid), or negative control (vehicle). Each treatment was performed twice daily for 8 days. All dogs were injected with histamine intradermally before treatment and on the 2nd, 4th, 6th, and 8th days of the treatment to evoke itch. Pruritus, wheal, and erythema intensity were assessed at each evaluation; cutaneous temperature was also recorded. On the final day, skin biopsy was conducted for histopathological evaluation for all dogs. The severity of pruritus was lesser in the capsaicin-treated group compared with the negative control group on day 8 (p⟨0.05). In the capsaicin and steroid groups, wheal size, erythema index, and cutaneous temperature also decreased compared with pretreatment. Histopathological evaluation showed that the capsaicin-treated group had a higher number of inflammatory cells in the dermis com- pared to the vehicle control group; however, the steroid-treated group showed less severe inflam- matory reactions than the vehicle control group. These results suggest that capsaicin cannot reduce inflammation but may play a helpful role in reducing pruritus in dogs.
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Affiliation(s)
- S Bae
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Kyunpook National University, Daegu 41566, Republic of Korea
| | - J Yu
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Kyunpook National University, Daegu 41566, Republic of Korea
| | - H Jeong
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Kyunpook National University, Daegu 41566, Republic of Korea
| | - T Oh
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Kyunpook National University, Daegu 41566, Republic of Korea
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Ryu D, Lee S, Lee S, Jeong H, Lee C, Lee J. Genomic analysis of Rhodococcus sp. BH4 reveals two genes encoding different types of AHL-lactonase for quorum quenching. N Biotechnol 2018. [DOI: 10.1016/j.nbt.2018.05.900] [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: 10/28/2022]
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Kim E, Choi K, Baek J, Lee Y, Jeong H, Park E, Moon S, Cho Y, Lee J, Kim B, Kim Y, Kim Y, Koong M, Kang I, Yoon T, Lee J. Age of women, the AMH level and the number of oocytes has co-related with aneuploidy ratios as preimplantation genetic screening indicator. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.1207] [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: 10/28/2022]
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36
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Choi Y, Kim M, Jung K, Choo S, Kim J, Jeong H, Chung M. Expression patten of miR-200 and Let-7 target gene in human endometrial stromal cells and endoemtrial tissues collected during menstrual cycle. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.678] [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: 11/28/2022]
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37
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Kim J, Ahn H, Yang M, Jeong H, Lee JE, Sung B. Effect of intraoperative dexmedetomidine on the postoperative agitation in thoracic surgery. J Cardiothorac Vasc Anesth 2018. [DOI: 10.1053/j.jvca.2018.08.044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Jeong H, Ahn H, Kim J, Yang M, Son YH, Lee J, Song I. Preventive use of corticosteroids and postoperative complications after oesophagectomy. J Cardiothorac Vasc Anesth 2018. [DOI: 10.1053/j.jvca.2018.08.139] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Abstract
During wound healing, cells migrate with electrotactic bias as a collective entity. Unlike the case of the electric field (EF)-induced single-cell migration, the sensitivity of electrotactic response of the monolayer depends primarily on the integrity of the cell–cell junctions. Although there exist biochemical clues on how cells sense the EF, a well-defined physical portrait to illustrate how collective cells respond to directional EF remains elusive. Here, we developed an EF stimulating system integrated with a hydrogel-based traction measurement platform to quantify the EF-induced changes in cellular tractions, from which the complete in-plane intercellular stress tensor can be calculated. We chose immortalized human keratinocytes, HaCaT, as our model cells to investigate the role of EF in epithelial migration during wound healing. Immediately after the onset of EF (0.5 V/cm), the HaCaT monolayer migrated toward anode with ordered directedness and enhanced speed as early as 15 min. Cellular traction and intercellular stresses were gradually aligned perpendicular to the direction of the EF until 50 min. The EF-induced reorientation of physical stresses was then followed by the delayed cell-body reorientation in the direction perpendicular to the EF. Once the intercellular stresses were aligned, the reversal of the EF direction redirected the reversed migration of the cells without any apparent disruption of the intercellular stresses. The results suggest that the dislodging of the physical stress alignment along the adjacent cells should not be necessary for changing the direction of the monolayer migration.
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Affiliation(s)
- Youngbin Cho
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Minjeong Son
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Hyuntae Jeong
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Jennifer H Shin
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
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Park J, Moon H, Kwon I, Kim J, Kang S, Lee E, Kim S, Sung J, Lee B, Jeong H. Usefulness of colonic tattooing using ICG in patients with colorectal tumors. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy150.012] [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: 11/12/2022] Open
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41
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Moon H, Kang S, Sung J, Jeong H. Endoscopic prediction of tumor invasion depth in early gastric signet ring cell carcinoma. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy150] [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: 11/14/2022] Open
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42
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Cho Y, Son M, Ko UH, Jeong H, Shin JH. Electric stimulation alters intercellular stress within the epithelial monolayer. FASEB J 2018. [DOI: 10.1096/fasebj.2018.32.1_supplement.869.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Youngbin Cho
- Korea Advanced Institute of Science and TechnologyDaejeonRepublic of Korea
| | - Minjeong Son
- Korea Advanced Institute of Science and TechnologyDaejeonRepublic of Korea
| | - Ung Hyun Ko
- Korea Advanced Institute of Science and TechnologyDaejeonRepublic of Korea
| | - Hyuntae Jeong
- Korea Advanced Institute of Science and TechnologyDaejeonRepublic of Korea
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Lee Y, Kang K, Choi HS, Ha I, Jeong H, Song J, Jeong B. 207P A comparison of outcomes of stereotactic body radiotherapy versus metastasectomy in patients with pulmonary metastases. J Thorac Oncol 2018. [DOI: 10.1016/s1556-0864(18)30480-5] [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: 11/27/2022]
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Shin H, Jeong H, Kim H, Lee J, Choi Y. Chronic progressive myopathy in a young patient with hyperkalemic periodic paralysis. Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.261] [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: 10/18/2022]
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45
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Lee J, Jeong H, Kim J, Tchah H, Kim K, Kim M. Two photon microscopic findings of sonoporation-assisted enhancement of corneal penetration of fluoroquinolone antibiotics. Acta Ophthalmol 2017. [DOI: 10.1111/j.1755-3768.2017.02385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- J.A. Lee
- Ophthalmology; Seoul Asan Medical Center; Seoul Korea
| | - H. Jeong
- Ophthalmology; Cheil Eye Hospital; Daegu Korea
| | - J.Y. Kim
- Ophthalmology; Seoul Asan Medical Center; Seoul Korea
| | - H. Tchah
- Ophthalmology; Seoul Asan Medical Center; Seoul Korea
| | - K.H. Kim
- Biomedical Optics Laboratory; POSTECH; Pohang Korea
| | - M.J. Kim
- Ophthalmology; Seoul Asan Medical Center; Seoul Korea
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Kim M, Park J, Choi M, Noe E, Jeong H, Kim M, Lee H, Chung M. Genes associated with natural killer cell-mediated cytotoxicity in the endometrium of RIF patients according to the levels of peripheral blood natural killer cells and menstrual cycle. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.1061] [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: 10/18/2022]
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Kim SH, Han WS, Jeong TY, Lee HR, Jeong H, Lee D, Shim SB, Kim DS, Ahn KJ, Yee KJ. Broadband Surface Plasmon Lasing in One-dimensional Metallic Gratings on Semiconductor. Sci Rep 2017; 7:7907. [PMID: 28801608 PMCID: PMC5554227 DOI: 10.1038/s41598-017-08355-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [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: 04/06/2017] [Accepted: 07/10/2017] [Indexed: 11/09/2022] Open
Abstract
We report surface plasmon (SP) lasing in metal/semiconductor nanostructures, where one-dimensional periodic silver slit gratings are placed on top of an InGaAsP layer. The SP nature of the lasing is confirmed from the emission wavelength governed by the grating period, polarization analysis, spatial coherence, and comparison with the linear transmission. The excellent performance of the device as an SP source is demonstrated by its tunable emission in the 400-nm-wide telecom wavelength band at room temperature. We show that the stimulated emission enhanced by the Purcell effect enables successful SP lasing at high energies above the gap energy of the gain. We also discuss the dependence of the lasing efficiency on temperature, grating dimension, and type of metal.
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Affiliation(s)
- Seung-Hyun Kim
- Department of Physics, Chungnam National University, Daejeon, 34134, South Korea.,Korea Basic Science Institute, Daejeon, 34134, South Korea
| | - Won Seok Han
- Electronics and Telecommunications Research Institute, Daejeon, 34129, South Korea
| | - Tae-Young Jeong
- Department of Physics, Chungnam National University, Daejeon, 34134, South Korea
| | - Hyang-Rok Lee
- Department of Physics, Chungnam National University, Daejeon, 34134, South Korea
| | - H Jeong
- Department of Physics, Chungnam National University, Daejeon, 34134, South Korea
| | - D Lee
- Department of Physics, Chungnam National University, Daejeon, 34134, South Korea
| | - Seung-Bo Shim
- Korea Research Institute of Standards and Science, Daejeon, 34113, South Korea
| | - Dai-Sik Kim
- Department of Physics and Astronomy, Seoul National University, Seoul, 08826, South Korea
| | - Kwang Jun Ahn
- Department of Energy Systems Research and Department of Physics, Ajou University, Suwon, 16499, South Korea.
| | - Ki-Ju Yee
- Department of Physics, Chungnam National University, Daejeon, 34134, South Korea.
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Park M, Lee M, Jeong H. USABILITY TEST OF WEB BASED PROGRAM FOR FAMILY CAREGIVERS. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.4051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- M. Park
- College of Nursing, Chungnam National University, Daejeon, Korea (the Republic of)
| | - M. Lee
- College of Nursing, Chungnam National University, Daejeon, Korea (the Republic of)
| | - H. Jeong
- College of Nursing, Chungnam National University, Daejeon, Korea (the Republic of)
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Jeong H, Oem JK, Yang MS, Yang D, Kim MS, Lee KH, Lee MH, Lim CW, Kim B. Experimental Infection of Goats with a Newly Isolated Strain of Akabane Virus that Causes Encephalomyelitis. J Comp Pathol 2017; 157:220-229. [PMID: 28673487 DOI: 10.1016/j.jcpa.2017.05.003] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 05/11/2017] [Accepted: 05/26/2017] [Indexed: 11/24/2022]
Abstract
In 2010, there was a large-scale outbreak of bovine encephalomyelitis in Korea, and 15 new strains of Akabane virus (AKAV) were isolated. To identify the pathogenicity of one of these strains, we infected adult goats with AKAV-7 via different routes. Twenty-five female goats were used in this study and were divided into five groups: intracerebral (IC) and intrasubarachnoid (IS) viral inoculation (n = 8 each), intravenous (IV) inoculation (n = 4), and vaccinated before IV inoculation (n = 4), in addition to a negative control animal. All animals inoculated with AKAV-7 had AKAV-neutralizing antibodies at 6-8 days post infection (dpi). During the experimental period, infected animals showed no clinical signs. In the IC group, 5/8 goats had non-suppurative encephalomyelitis affecting the cerebrum. Virus S RNA segments were detected in nearly all areas of the brain. In the IS group, 3/8 goats had encephalomyelitis affecting the cerebrum, cerebellum and spinal cord. At 7 and 21 dpi, virus S RNA segments were found mostly in the spinal cord, especially around the area of injection (L5-L6). Antibody titres in the serum of the vaccinated group had an early onset and slightly increased titre compared with the IV group. Histopathologically, there were no obvious lesions in the central nervous tissues in the vaccinated group, while one of four goats in the IV group showed encephalomyelitis in the parietal lobe of the cerebrum. The newly isolated AKAV-7 can cause encephalomyelitis in goats after experimental injection. The attenuated AKAV vaccine currently used in Korea may provide partial protective immunity against AKAV-7 infection, but the real effect of the vaccine requires further investigation in goats.
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Affiliation(s)
- H Jeong
- College of Veterinary Medicine and Korea Zoonosis Research Institute, Chonbuk National University, Iksan City, Republic of Korea
| | - J-K Oem
- College of Veterinary Medicine and Korea Zoonosis Research Institute, Chonbuk National University, Iksan City, Republic of Korea; Animal Disease Diagnostic Division, Animal and Plant Quarantine Agency, Anyang, Republic of Korea
| | - M-S Yang
- College of Veterinary Medicine and Korea Zoonosis Research Institute, Chonbuk National University, Iksan City, Republic of Korea
| | - D Yang
- College of Veterinary Medicine and Korea Zoonosis Research Institute, Chonbuk National University, Iksan City, Republic of Korea
| | - M-S Kim
- College of Veterinary Medicine and Korea Zoonosis Research Institute, Chonbuk National University, Iksan City, Republic of Korea
| | - K-H Lee
- Animal Disease Diagnostic Division, Animal and Plant Quarantine Agency, Anyang, Republic of Korea
| | - M-H Lee
- Animal Disease Diagnostic Division, Animal and Plant Quarantine Agency, Anyang, Republic of Korea
| | - C-W Lim
- College of Veterinary Medicine and Korea Zoonosis Research Institute, Chonbuk National University, Iksan City, Republic of Korea
| | - B Kim
- College of Veterinary Medicine and Korea Zoonosis Research Institute, Chonbuk National University, Iksan City, Republic of Korea.
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Shin DG, Kim TH, Jeong H, Kim A, Uhm JS, Joung B, Lee MH, Pak HN. P323Prognostic value of inferior shift of P-wave axis after catheter ablation for longstanding persistent atrial fibrillation including anterior line. Europace 2017. [DOI: 10.1093/ehjci/eux141.050] [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: 11/14/2022] Open
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