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Large-scale and high-quality III-nitride membranes through microcavity-assisted crack propagation by engineering tensile-stressed Ni layers

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Opto-Electronic Science 2022年第10期1卷 51-61,42-50页

作者： Jung-Hong Min Kwangjae Lee Tae-Hoon Chung Jung-Wook Min Kuang-Hui Li Chun Hong kang Hoe-Min Kwak Tae-hyeon Kim Youyou Yuan Kyoung-Kook Kim Dong-Seon Lee Tien Khee Ng Boon S.Ooi Photonics Laboratory ComputerElectrical and Mathematical Sciences and Engineering Division(CEMSE)King Abdullah University of Science and Technology(KAUST)Thuwal 23955-6900Saudi Arabia Department of Electrical Engineering Stanford UniversityStanfordCA 94305USA Light Source Research Division Korea Photonics Technology Institute(KOPTI)Gwangju 61007Republic of Korea School of Electrical Engineering and Computer Science Gwangju Institute of Science and TechnologyGwangju 61005Republic of Korea Department of Advanced Convergence Technology Research Institute of Advanced Convergence TechnologyKorea Polytechnic University237 Sangidaehak-roSiheung-si 15073Republic of Korea King Abdullah University of Science and Technology(KAUST) Thuwal 23955-6900Saudi Arabia

Epitaxially grown III-nitride alloys are tightly bonded materials with mixed covalent-ionic *** tight bonding presents tremendous challenges in developing III-nitride membranes,even though semiconductor membranes can provide numerous advantages by removing thick,inflexible,and costly ***,cavities with various sizes were introduced by overgrowing target layers,such as undoped GaN and green LEDs,on nanoporous templates prepared by electrochemical etching of n-type *** large primary interfacial toughness was effectively reduced according to the design of the cavity density,and the overgrown target layers were then conveniently exfoliated by engineering tensile-stressed Ni *** resulting III-nitride membranes maintained high crystal quality even after exfoliation due to the use of GaN-based nanoporous templates with the same lattice *** microcavity-assisted crack propagation process developed for the current III-nitride membranes forms a universal process for developing various kinds of large-scale and high-quality semiconductor membranes.

关键词： III-nitride alloys membranes nanoporous Ni stressor light-emitting diodes ultraviolet photodetectors

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Repair of heat-induced skin aging by herbal extracts and thermal protection factor(TPF)

Repair of heat-induced skin aging by herbal extracts and the...

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第九届中国化妆品学术研讨会

作者： hyeon Chung Kim Kuan Chi Hsu Sung Il Park Eui Dong Son Myeong Hoon Yeom Dae Jin Min Sang Hoon Han Hak Hee kang Quen Quen He Jeong Cheol Ha Su Sun An Jae Ho Yeon Amorepacific Corporation R&D Center

Long term exposure of skin to high temperature induces activation of transient receptor potential cation channel subfamily V member 1(TRPV-1), as well as increase of matrix metalloprotease 9(MMP-9), which breaks down extracellular matrix in skin. Thus, along with photo-aging, heat also accelerates skin-aging as a long term effect. Here, heat-absorbing substances with heat energy-blocking effects were screened, and the blockage rate was calculated as "Thermal Protection Factor(TPF)". Herbal plant extracts such as Prunus Mume fruit extract and Chamaecyparis Obtusa polysaccharide were able to reduce skin damage by reducing TRPV-1 activation, heat-induced MMP-9 expression and other heat-induced inflammatory responses such as monocyte chemoattractant protein-1(MCP-1) expression. Also, a cream containing heat-absorbing and modulating actives showed statistically significant skin elasticity and redness-controlling effects in a clinical study.

关键词： Heat,skin aging TPF Prunus Mume Chamaecyparis Obtusa TRPV-1

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High-throughput discovery of plastid genes causing albino phenotypes in ornamental chimeric plants

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Horticulture Research 2023年第1期10卷 249-259页

作者： Hyun-Seung Park Jae-hyeon Jeon Woohyeon Cho Yeonjeong Lee Jee Young Park Jiseok Kim Young Sang Park Hyun Jo Koo Jung Hwa kang Taek Joo Lee Sang Hoon Kim Jin-Baek Kim Hae-Yun Kwon Suk-Hwan Kim Nam-Chon Paek Geupil Jang Jeong-Yong Suh Tae-Jin Yang Department of Agriculture Forestry and BioresourcesResearch Institute of Agriculture and Life Sciencesand Plant Genomics and Breeding InstituteCollege of Agriculture and Life SciencesSeoul National UniversitySeoul08826Republic of Korea Department of Integrative Biological Sciences and Industry Sejong UniversitySeoul 05006Korea Hantaek Botanical Garden YonginGyeonggi-do17183Republic of Korea Radiation Breeding Research Team Advanced Radiation Technology InstituteKorea Atomic Energy Research InstituteJeongeup 56212Korea Special Forest Resources Division National Institute of Forest ScienceSuwon 16631Korea School of Biological Sciences and Technology Chonnam National UniversityGwangjuSouth Korea Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences Seoul National UniversitySeoul 08826Korea

Chimeric plants composed of green and albino tissues have great ornamental *** unveil the functional genes responsible for albino phenotypes in chimeric plants,we inspected the complete plastid genomes(plastomes)in green and albino leaf tissues from 23 ornamental chimeric plants belonging to 20 species,including monocots,dicots,and *** nine chimeric plants,plastomes were identical between green and albino ***,another 14 chimeric plants were heteroplasmic,showing a mutation between green and albino *** identified 14 different point mutations in eight functional plastid genes related to plastid-encoded RNA polymerase(rpo)or photosystems which caused albinism in the chimeric *** them,12 were deleterious mutations in the target genes,in which early termination appeared due to small deletion-mediated frameshift or single nucleotide *** was single nucleotide substitution in an intron of the ycf3 and the other was a missense mutation in coding region of the rpoC2 *** inspected chlorophyll structure,protein functional model of the rpoC2,and expression levels of the related genes in green and albino tissues of Reynoutria japonica.A single amino acid change,histidine-to-proline substitution,in the rpoC2 protein may destabilize the peripheral helix of plastid-encoded RNA polymerase,impairing the biosynthesis of the photosynthesis system in the albino tissue of *** chimera plant.

关键词： plast substitution ornamental

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Erratum to:Tyrosine-mediated analog resistive switching for artificial neural networks

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Nano Research 2023年第8期16卷 11543-11543页

作者： Min-Kyu Song Seok Daniel Namgung Hojung Lee Jeong Hyun Yoon Young-woong Song kang Hee Cho Yoon-Sik Lee Jong-Seok Lee Ki Tae Nam Jang-Yeon Kwon School of Integrated Technology Yonsei UniversityIncheon 21983Republic of Korea Department of Mechanical Engineering Massachusetts Institute of TechnologyMA 02139USA Research Laboratory of Electronics Massachusetts Institute of TechnologyMA 02139USA Department of Materials Science and Engineering Seoul National UniversitySeoul 08826Republic of Korea Soft Foundry Seoul National UniversitySeoul 08826Republic of Korea School of Chemical and Biological Engineering Seoul National UniversitySeoul 08826Republic of Korea

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Second-look endoscopy and factors associated with delayedbleeding after endoscopic submucosal dissection

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World Journal of Gastrointestinal Endoscopy 2016年第3期8卷 173-179页

作者： Su-Jin Kim Cheol-woong Choi Dae-Hwan kang Hyung-Wook Kim Su-Bum Park Department of Internal Medicine Pusan National University School of Medicine and Research Institute for Convergence of Biomedical Science and TechnologyPusan National University Yangsan HospitalYangsan 626-770South Korea

Endoscopic submucosal dissection(ESD) is a widely used procedure as curative treatment for superficial gastric neoplasms, including early gastric cancer without lymph node metastasis. However, ESD requires advanced endoscopic skill and there is a major concern regarding complications from bleeding. So far, extensive efforts have been made to develop strategies to reduce post-ESD bleeding. Use of proton pump inhibitors and coagulating exposed vessels on the ulcer floor after ESD are strategies known to reduce the risk of delayed bleeding. Second-look endoscopy(SLE) is also carried out to reduce delayed bleeding following ESD in many institutions. However, the incidence of bleeding still remains around 5%, and further measures are needed to reduce delayed bleeding after gastric ESD. Recently, three randomized studies indicated that routine SLE was unnecessary. Although routine SLE may not be recommended for all patients after gastric ESD, SLE might be an important tool for the prevention of the delayed bleeding in selected high-risk patients. Thus, the identification of the risk factors, such as large size of resected specimen and treatment with multiple antiplatelet medications, may help to further guide clinicians in deciding whether to perform SLE. Studies carried out on larger cohorts are necessary to clarify the efficacy of SLE after ESD in the prevention of post-ESD bleeding in potentially high-risk patients.

关键词： Endoscopic submucosal dissection Secondlookendoscopy Early gastric cancer

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Treatment preferences in men with erectile dysfunction： an open label study in Korean men switching from sildenafil citrate to tadalafil

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Asian Journal of Andrology 2007年第6期9卷 760-770页

作者： Tai Young Ahn Sung Won Lee Sae-woong Kim Dae Yul Yang Nam Cheol Park Kweon-Sik Min Kwangsung Park Jae-Seung Paick Yulia Dyachkova Trisha Dwight Myung-Sea Luke Lee Asan Medical Centre Seoul 138-736 Korea Samsung Medical Centre Seoul 135-710 Korea Youido St Marys Hospital Seoul 150-713 Korea kang Dong Sacred Heart Hospital Seoul 134-701 Korea Pusan National University Hospital Pusan 602-739 Korea Pusan lnje University Paik Hospital Pusan 614-735 Korea Chonnam National University Hospital Gwangju 501-757 Korea Seoul National University Hospital Seoul 110-744 Korea Area Medical Centre Vienna Eli Lilly Austria Sydney A-1030 Australia Intercontinental Information Sciences Eli Lilly Australia Sydney 2113 Australia Eli Lilly Korea Seoul 135-280 Korea

To evaluate patient preferences for sildenafil citrate or tadalafil （PDE-5 inhibitors available for the treatment of erectile dysfunction [ED]） and assess potential reasons for these preferences. Methods： This open-label study was conducted on Korean men taking sildenafil, at least 6 weeks prior to study entry, for ED. Following screening, patients continued sildenafil treatment for 4 weeks, then after a 1-week washout period, switched to tadalafil for 8 weeks. Patients then continued with their treatment of choice during an extension phase. Psychosocial factors （time concern, spontaneity, sexual self-confidence） were evaluated using Psychological and Interpersonal Relation- ship Scales （PAIRS）, while timing of dose to sexual attempt patterns were assessed from patient diaries. Results： The present study enrolled 160 Korean men （mean age 55 years） with prior median sildenafil use of 585 days. During the extension phase, 73.7% of patients elected to take tadalafil, whereas 26.3% chose sildenafil （P 〈 0.001）. After switching from sildenafil to tadalafil, mean PAIRS time concern scores decreased from 2.54 to 2.42 （P = 0.002）, with no statistically significant differences observed between the sildenafil and tadalafil assessment phases in sexual spontaneity and self-confidence scores. Sexual attempts made 〉 4 h to 〈 36 h post-dose occurred in 4.5% of patients during the sildenafil assessment phase compared with 17.5% during the tadalafil assessment phase. Conclusion： After experiencing both sildenafil and tadalafil, the majority of patients exhibited a preference for tadalafil. This preference might be influenced by psychosocial factors, such as decreased time concerns, and a broader window of opportunity available for sexual activity.

关键词： erectile dysfunction tadalafil sildenafil citrate Psychological and Interpersonal Relationship Scales preference

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新的心肌PET显像剂18F-FPTP的参数图形算法的比较

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中华核医学与分子影像杂志 2018年第2期38卷 151-151页

作者：唐军 Ji Who Kim Seongho Seo hyeon Sik Kim Dong-Yeon Kim Ho-Young Lee Keon Wook kang Dong Soo Lee Hee-Seung Bom Jung-Joon Min Jae Sung Lee 上海交通大学医学院附属苏州九龙医院核医学科 Department of Nuclear Medicine and Department of Biomedical Sciences Seoul National University Department of Cardiology Chonnam National University Hwasun Hospital

目的 (18F-氟戊基)三苯基季磷盐(18F-FPTP)是一种新的有应用前景的心肌PET显像剂,其在心肌细胞内积聚量多且肝脏清除快。该研究小组在小鼠体内做了18F-FPTP PET显像的代谢区室分析和两项线性分析,即用于生成参数图的线性最小二乘法（LL... 详细信息

目的 (18F-氟戊基)三苯基季磷盐(18F-FPTP)是一种新的有应用前景的心肌PET显像剂,其在心肌细胞内积聚量多且肝脏清除快。该研究小组在小鼠体内做了18F-FPTP PET显像的代谢区室分析和两项线性分析,即用于生成参数图的线性最小二乘法（LLS）和基函数法（BFM）分析。此外,还研究了动态分析的最小动态显像时间,并进行了计算机模拟。方法对心肌梗死（MI）小鼠模型（n=12）进行18F-FPTP动态PET显像（18 min）和CT显像。在左心室、正常心肌和梗死区勾画感兴趣区（ROI）。比较两室模型（速率常数k1和k2;2室2参数）和不可逆摄取的三室模型（速率常数k1-k3;3室3参数）的拟合优度,并进行部分容积和溢出校正（Vα和α=1-Va）。LLS和BFM用于基于ROI和基于体素的动力学参数估算,估算结果与相应代谢区室模型标准的基于ROI的非线性最小二乘法（NLS）结果进行比较。通过计算机模拟研究估算方法的统计学特点。结果 2室2参数模型最适于描述18F-FPTP的动力学表现。正常心肌的平均k1、k2和Va值分别是6.8ml·min-1·g-1、1.1/min和0.44,而梗死组织的分别是1.4 ml·min-1·g-1、1.1/min和0.32。动态显像10 min的数据即足够用于估算各项参数。LLS和BFM的估算结果与ROI水平的NLS的结果有很好的相关性（k1:1.22x-0.30,r2=0.90;y=1.26x+0.00,r2=0.92）。动态参数图形（αk1,k1,k2,Va）的局部分布具有生理相关性。在计算机模拟中,LLS和BFM比NLS的特征性更强。结论快速的动力学特征和心肌较高的特异性摄取使18F-FPTP能在显像开始的最初10 min动态显像内,利用2室2参数模型进行定量分析。LLS和BFM能在体素水平进行参数估算,这2种方法可用于定量评价18F-FPTP在心肌中的分布,进而研究其在不同条件、不同疾病模型和病种中进行心肌显像的表现。

关键词：定量参数图模拟心肌PET

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Anethole improves the developmental competence of porcine embryos by reducing oxidative stress via the sonic hedgehog signaling pathway

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畜牧与生物技术杂志(英文版) 2023年第4期

作者： Ye Eun Joo Pil-Soo Jeong Sanghoon Lee Se-Been Jeon Min-Ah Gwon Min Ju Kim Hyo-Gu kang Bong-Seok Song Sun-Uk Kim Seong-Keun Cho Bo-woong Sim

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通过13N-NH3 PET检测冠脉血流储备和相对血流储备以诊断冠心病

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中华核医学与分子影像杂志 2017年第10期37卷 672-672页

作者：顾佳唐军苏州大学医学部放射医学与防护学院 215123 苏州大学附属第二医院核医学科 215004

目的使用13N-NH，PET显像检测冠脉血流储备（CFR）和相对血流储备（RFR），分析两者之间的关系以诊断冠心病。方法69例稳定性心绞痛患者在2周内接受13N—NH，PET显像和cT冠脉造影（CTA），必要时还行介入冠脉造影（CAG）。通过13N-NH，... 详细信息

目的使用13N-NH，PET显像检测冠脉血流储备（CFR）和相对血流储备（RFR），分析两者之间的关系以诊断冠心病。方法69例稳定性心绞痛患者在2周内接受13N—NH，PET显像和cT冠脉造影（CTA），必要时还行介入冠脉造影（CAG）。通过13N-NH，PET显像检测心肌血流（MBF）、CFR、RFR和相关冠脉供血区域的冠脉血管阻力（CVRref）。采用CTA和CAG评价冠脉明显狭窄（SS）和弥漫性动脉粥样硬化（DA）。比较有和无SS和DA的各冠状动脉的PET检测功能参数。结果有SS和DA的冠状动脉其负荷态MBF显著降低，有SS的冠脉其RFR显著降低，而CFR没有降低。有DA的冠脉其CFR显著降低，而RFR没有降低。在没有SS的冠脉中，有DA的其CFR显著降低，但在有SS的冠脉中，无论有无DA，CFR都相近。相反，无论有无DA，存在SS的冠脉其RFR显著降低。CFR和RFR在24例中（35％）呈不一致的弱正相关性（r=0．269）。在CFR和RFR不一致的冠脉中，CFR降低而RFR正常的冠脉其DA的发生率高于CFR正常而RFR降低的冠脉（75％比25％，P=0．028）。有DA的冠脉其CVR。显著升高，表明DA与潜在的微血管病变具有相关性。结论心肌血流灌注PET显像测定CFR和RFR为诊断CAD提供了更丰富的信息。

关键词：冠心病正电子发射断层显像术冠脉血流储备相对血流储备

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