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Solar Driven 15.7% Hydrogen Conversion by Harmony of Light Harvesting,Electron Transporting Bridge,and S-Defection in a Self-Assembled microscale CuS/rGO/CP Photoanode

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Energy & Environmental materials 2024年第3期7卷 190-201页

作者： Sujeong kim Boseok Seo Hyerim Park Younghwan Im jeong Yeon Do Byung Sub Kwak Namgyu Son minkyu kim misook Kang Department of Chemistry College of Natural SciencesYeungnam UniversityGyeongsan Gyeongbuk 38541Korea School of Chemical Engineering Yeungnam UniversityGyeongsan Gyeongbuk 38541Korea Department of Energy and Hydrocarbon Chemistry Graduate School of EngineeringKyoto UniversityKyoto 615-8510Japan Korea Evaluation Institute of Industrial Technology(Keit) Cheomdan-Ro 8-GilDong-GuDaegu 41069Korea Korea Electric Power Research Institute(KEPRI)105 munji-ro Yooseong-guDaejeon 34056Korea

CuS is an encouraging photoelectrode candidate that meets the essential requirements for efficient solar-to-hydrogen production,but it has not been thoroughly studied.A CuS light absorber layer is grown by the self-assembly of copper and sulfur precursors on a carbon paper(CP)***,rGO is introduced as a buffer layer to control the optical and electrical properties of the *** well-ordered microstructural arrangement suppresses the recombination loss of electrons and holes owing to enhanced charge-carrier generation,separation,and *** potential reaching 10 mA cm^(-2)in 1.0 m KOH solution is significantly lowered to 0.87 V,and the photocurrent density at 1.23 V is 94.7 mA cm^(-2).The computational result reveals that the potential-determining step is sensitive to O^(*)stability;the lower stability of O^(*)in the thin layer of CuS/rGO decreases the free-energy gap between the initial and final states of the potential-determining step,resulting in a lowering of the onset *** faradaic efficiency for the photoelectrochemical oxygen evolution reaction in the optimized 2CuS/1rGO/CP photoanode is 98.60%,and the applied bias photon-to-current and the solar-to-hydrogen efficiencies are 11.2%and 15.7%,respectively,and its ultra-high performance is maintained for 250 *** record-breaking achievement indices may be a trigger for establishing a green hydrogen economy.

关键词： 15.7%-solar to hydrogen density functional theory lower photopotential p-CuS/rGO/CP photoanode photoelectrochemical oxygen evolution

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SARS-CoV-2 aberrantly elevates mitochondrial bioenergetics to induce robust virus propagation

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Signal Transduction and Targeted Therapy 2024年第6期9卷 2702-2715页

作者： Hye jin Shin Wooseong Lee Keun Bon Ku Gun Young Yoon Hyun-Woo moon Chonsaeng kim mi-Hwa kim Yoon-Sun Yi Sangmi jun Bum-Tae kim jong-Won Oh Aleem Siddiqui Seong-jun kim Department of Convergent Research of Emerging Virus Infection Korea Research Institute of Chemical TechnologyDaejeon 34114Republic of Korea Gyeongnam Biohealth Research Center Gyeongnam Branch InstituteKorea Institute of ToxicologyJinju 52834Republic of Korea Center for Research Equipment Korea Basic Science InstituteCheongjuChungcheongbuk-do 28119Republic of Korea Department of Biotechnology Yonsei UniversitySeoul 03722Republic of Korea Division of Infectious Diseases School of MedicineUniversity of CaliforniaSan DiegoLa JollaCA 92093USA Present address:Department of microbiology Chungnam National University School of MedicineDaejeon 35015Republic of Korea

Severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)is a‘highly transmissible respiratory pathogen,leading to severe multiorgan ***,knowledge regarding SARS-CoV-2-induced cellular alterations is *** this study,we report that SARSCoV-2 aberrantly elevates mitochondrial bioenergetics and activates the EGFR-mediated cell survival signal cascade during the early stage of viral ***-CoV-2 causes an increase in mitochondrial transmembrane potential via the SARS-CoV-2 RNAnucleocapsid cluster,thereby abnormally promoting mitochondrial elongation and the OXPHOS process,followed by enhancing ATP ***,SARS-CoV-2 activates the EGFR signal cascade and subsequently induces mitochondrial EGFR trafficking,contributing to abnormal OXPHOS process and viral *** EGFR inhibitors remarkably reduce SARS-CoV-2 propagation,among which vandetanib exhibits the highest antiviral *** of SARS-CoV-2-infected cells with vandetanib decreases SARS-CoV-2-induced EGFR trafficking to the mitochondria and restores SARS-CoV-2-induced aberrant elevation in OXPHOS process and ATP generation,thereby resulting in the reduction of SARS-CoV-2 ***,oral administration of vandetanib to SARS-CoV-2-infected hACE2 transgenic mice reduces SARS-CoV-2 propagation in lung tissue and mitigates SARS-CoV-2-induced lung *** also exhibits potent antiviral activity against various SARS-CoV-2 variants of concern,including alpha,beta,delta and omicron,in in vitro cell culture *** together,our findings provide novel insight into SARS-CoV-2-induced alterations in mitochondrial dynamics and EGFR trafficking during the early stage of viral infection and their roles in robust SARS-CoV-2 propagation,suggesting that EGFR is an attractive host target for combating COVID-19.

关键词： alterations aberrant thereby

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对比粗梁-团块型肝细胞癌的CT和钆塞酸增强mRI影像表现

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国际医学放射学杂志 2023年第2期 247-248页

作者： H.Cha j.Y.Choi Y.N.Park K.Han m.jang m.j.kim 崔建民

摘要目的研究粗梁-团块型肝细胞癌（mTm-HCC）的CT和mRI影像表现及其诊断效能和预后意义。方法回顾性纳入2009年6月—2013年12月期间仅因原发肝癌而行肝

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用于VLSI的注入氮化物特性

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微电子学 1985年第3期 91-100页

作者： m.j.kim m.Ghezzo 李忠义

本文描述了在VLSI研制中通过氮注入形成氮化硅层。在形成各种氮化物层的过程中,注入分子氮能量范围为5到60keV,随后在1000℃的氮中退火。描述在炉中退火前后所形成的氮化物层特性,在不同的IR、SImS和椭圆对称测量情况中找出局部氧化掩... 详细信息

本文描述了在VLSI研制中通过氮注入形成氮化硅层。在形成各种氮化物层的过程中,注入分子氮能量范围为5到60keV,随后在1000℃的氮中退火。描述在炉中退火前后所形成的氮化物层特性,在不同的IR、SImS和椭圆对称测量情况中找出局部氧化掩模的有效注入条件。相对于整个注入能量范围,注入氮的最初IR峰值为815cm-1。对于退火后的高能量注入来说该位置会漂移到一个较高的波长数,低能量注入峰值接近于830cm-1,上述均与LPCVD为氧化物峰值相比而言。此研究结果认为,低能氧化物的化学成分几乎是可用定量计算的。退火过程中浓度分布向着表面漂移,并将增高峰值区氧的浓度。从氮化物分布剖面看最大值是在表面,而在m-2离子的氮化物在注入能量低于40keV会形成有效的氧化掩模。在此实验条件下,在10keV下所形成的氮化层可认为是一个有效的氧化掩模,足以适应选择性地腐蚀SiO2,减小“鸟嘴”尺寸为常规LOCOS的四分之一。

关键词：氧化掩模注入能量能量范围氮化层退火过程氮化硅波长数氧化层浓度分布 LPCVD

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KoNA:Korean Nucleotide Archive as A New Data Repository for Nucleotide Sequence Data

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Genomics, Proteomics & Bioinformatics 2024年第1期22卷 161-167页

作者： Gunhwan Ko jae Ho Lee Young mi Sim Wangho Song Byung-Ha Yoon Iksu Byeon Bang Hyuck Lee Sang-Ok kim jinhyuk Choi Insoo jang Hyerin kim jin Ok Yang Kiwon jang Sora kim jong-Hwan kim jongbum jeon jaeeun jung Seungwoo Hwang ji-Hwan Park Pan-Gyu kim Seon-Young kim Byungwook Lee Korea Bioinformation Center Korea Research Institute of Bioscience&BiotechnologyDaejeon 34141Republic of Korea

During the last decade,the generation and accumulation of petabase-scale high-throughput sequencing data have resulted in great challenges,including access to human data,as well as transfer,storage,and sharing of enormous amounts of *** promote data-driven biological research,the Korean government announced that all biological data generated from government-funded research projects should be deposited at the Korea BioData Station(K-BDS),which consists of multiple databases for individual data ***,we introduce the Korean Nucleotide Archive(KoNA),a repository of nucleotide sequence *** of july 2022,the Korean Read Archive in KoNA has collected over 477 TB of raw next-generation sequencing data from national genome *** ensure data quality and prepare for international alignment,a standard operating procedure was adopted,which is similar to that of the International Nucleotide Sequence Database *** standard operating procedure includes quality control processes for submitted data and metadata using an automated pipeline,followed by manual *** ensure fast and stable data transfer,a high-speed transmission system called GBox is used in ***,the data uploaded to or downloaded from KoNA through GBox can be readily processed using a cloud computing service called *** seamless coupling of KoNA,GBox,and Bio-Express enhances the data experience,including submission,access,and analysis of raw nucleotide *** not only satisfies the unmet needs for a national sequence repository in Korea but also provides datasets to researchers globally and contributes to advances in *** KoNA is available at https://***/kona/.

关键词： Korea BioData Station Nucleotide sequence Next-generation sequencing repository Genomics Deposition and access of big data

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Unraveling the role of mETTL14 in metabolic dysfunction-associated fatty liver disease:insights and therapeutic implications

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Signal Transduction and Targeted Therapy 2024年第5期9卷 1781-1783页

作者： So jung kim jeongeun Hyun Institute of Tissue Regeneration Engineering(ITREN) Dankook UniversityCheonanRepublic of Korea Department of Nanobiomedical Science and BK21 PLUS NBm Global Research Center for Regenerative medicine Dankook UniversityCheonanRepublic of Korea mechanobiology Dental medicine Research Center College of DentistryDankook UniversityCheonanRepublic of Korea

The recent article published in Signal Transduction and Targeted Therapy sheds light on the significance of N6-methyladenosine(m6A)methyltransferase-like protein mETTL14 in mitigating the progression of metabolic dysfunction-associated fatty liver disease(mAFLD).1 In this study,Wang et *** the downregulation of mETTL14 in hepatocytes from both mAFLD patients and high-fat diet(HFD)-induced mAFLD mouse models,underscoring its pivotal role in maintaining hepatic lipid and redox homeostasis in normal livers.

关键词： liver homeostasis al.

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Implementation of an international medical student pen-pal club:survey outcomes of perceptions in cultural competency and global health

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Global Health journal 2024年第1期8卷 11-15页

作者： max j.Goodman jennifer Livschitz ji Won kim megan L.Schultz medical College of Wisconsin MilwaukeeWI 53226USA Department of Pediatrics Division of Emergency MedicineMedical College of WisconsinMilwaukeeWI53226USA

Background:Pen-pal clubs(PPC)are used worldwide for students to learn about different cultures and other skillsets without the need for *** medical students are interested in global health opportunities abroad but costs,scheduling,and other barriers allow few to participate in such *** is important that medical students have nuanced global medical perspectives and can contribute to the global medical ***:The purpose of this study is to demonstrate that an international medical student PPC improves medical students'perspectives of cultural competency and global health ***:In 2021,a novel medical student PPC was established that began between an American and japanese medical *** a shareholders meeting,it was decided that the number of medical schools involved globally be expanded through previous institutional affiliations and online *** total,the club connected 50 American medical students and 52 medical students from 17 high-and middle-income *** primary form of communication was online;pen-pals were encouraged to communicate monthly using provided topics,although frequency and way of communication was their *** February 2022,American PPC members were emailed a qualitative survey to assess the PPC's ***:The survey was completed by 42%of American PPC members,95%of which were 22-26 *** were preclinical medical students,60%whom were female and the majority either white(47%)or Asian(43%).Overall,the PPC positively influenced American medical students'perception of global medicine,medical education,and their cultural competency after joining the PPC compared to prior(P=0.004).Conclusion:PPCs encourage medical students to think from a global perspective and foster open-mindedness within varying social and cultural *** a global communication platform for students during medical school education may be an additional way to train aspiring global l

关键词： Pen-pals medical student Global health Cultural competency

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CO oxidation under lean and stoichiometric conditions over ceriazirconia with very low metal contents(Cu,Co,Ag and Pt)

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journal of Rare Earths 2024年第9期42卷 1669-1681,I0002页

作者： j.C.martínez-munuera m.P.Yeste A.García-García mCmA Group Department of Inorganic Chemistry and Institute of MaterialsUniversity of AlicanteCarretera de San Vicente del Raspeig s/n03690San Vicente del RaspeigAlicanteSpain Solid Chemistry and Catalysis Group Department of Materials ScienceMetallurgic Engineering and Inorganic ChemistryInstitute of Electronic Microscopy and Materials ResearchUniversity of CádizAp.40E-11510Puerto RealCádizSpain

In this work,several ceria-zirconia based catalysts with very lo w(and equimolar) metal contents were prepared,characterised and tested for the CO oxidatio n reaction(under lean and stoichiometric conditions),trying to emulate those conditions found in a diesel oxidation catalyst(DOC) system from a diesel engine and those encountered under gasoline exhaust(λ=1).The metals chosen are Cu,Co,Ag and Pt(as a reliable benchmark).The results reveal enormous differences among reducibility and catalytic activity despite quite similar structural and textural properties of the catalysts,showing differences among dispersion(Ag-catalyst seems to present a low level of dispersion).This catalyst seems to be characterised,as well,by a strong electronic interaction between Ce and Ag centres which is suggested to yield an improved reducibility under H_(2)-TPR ***,the order in catalytic activity(Cu>Ag>Co≈Pt>>support) seems not to follow the order found in reducibility and the Cu-catalyst seems to be the most active independently on the reaction conditions,yielding nearly overlapped CO oxidation catalytic *** restingly,a stro ng correlation between the catalytic activity under the two conditions tested and the OSC values of the Ce_(0.8)Zr_(0.2)O_(2)-supported metal catalysts is ***,OSC parameter measured at 150℃ can be used as a relevant descriptor to evaluate the CO oxidation activity at low and medium conversions for the investigated catalysts,much better than the H_(2)-TPR measurements.

关键词： CO oxidation Low metal content Ceria-zirconia Copper species OSC parameter Rare earths

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modeling asymmetric fracture mechanics of mg alloy wire in drawing process

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journal of magnesium and Alloys 2024年第5期12卷 2057-2069页

作者： Sunghoon Choi jongwon Shin joung Sik Suh Dongchoul kim Department of mechanical Engineering Sogang UniversitySeoul04107Republic of Korea Advanced metals Division Korea Institute of Materials ScienceChangwon 51508Republic of Korea

In this study,a numerical analysis was conducted on the ductile fracture of a 2-mm diameter mg-1Zn-0.5mn-0.5Sr-0.1Ca alloy wire during *** hexagonally close-packed crystal structure of mg alloys causes asymmetric fracture behavior,especially in the compression *** aim of this study is to develop a comprehensive damage model for mg alloy wire that accurately predicts ductile fracture,with a focus on the compression region.A novel experimental method was introduced to measure the ductile fracture of mg alloy wires under different stress *** wire drawing process was simulated using the Generalized Incremental Stress-State dependent damage(GISSmO)model and the Semi-Analytical model for Polymers(SAmP)*** damage model's prediction and the experimental results were found to be in excellent agreement,especially in determining crack *** analysis established a safe zone diagram for die angle and reduction ratio,and experimental validation confirmed the feasibility of this *** proposed damage model can provide a practical and reliable analysis for optimizing the drawing process of mg alloy wire.

关键词： mg alloy Wire drawing Finite element method Damage model Safe zone diagram

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α1-COP modulates plasmodesmata function through sphingolipid enzyme regulation

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journal of Integrative Plant Biology 2024年第8期66卷 1639-1657页

作者： Arya Bagus Boedi Iswanto minh Huy Vu jong Cheol Shon Ritesh Kumar Shuwei Wu Hobin Kang Da-Ran kim Geon Hui Son Woe Yoen kim Youn-Sig Kwak Kwang Hyeon Liu Sang Hee kim jae-Yean kim Division of Applied Life Science(BK21 FOUR Program) Plant Molecular Biology and Biotechnology Research CenterGyeongsang National UniversityJinju 52828Korea College of Pharmacy and Research Institute of Pharmaceutical Sciences Kyungpook National UniversityDaegu 702-701Korea Departement of Plant medicine Gyeongsang National UniversityJinju 52828Korea Division of Life Science Gyeongsang National UniversityJinju 52828Korea

Callose,aβ-1,3-glucan plant cell wall polymer,regulates symplasmic channel size at plasmodesmata(PD)and plays a crucial role in a variety of plant ***,elucidating the molecular mechanism of PD callose homeostasis is *** screened and identified an Arabidopsis mutant plant with excessive callose deposition at PD and found that the mutated gene wasα1-COP,a member of the coat protein I(COPI)coatomer *** report that loss of function ofα1-COP elevates the callose accumulation at PD by affecting subcellular protein localization of callose degradation enzyme Pd *** process is linked to the functions of ERH1,an inositol phosphoryl ceramide synthase,and glucosylceramide synthase through physical interactions with theα1-COP ***,the loss of function ofα1-COP alters the subcellular localization of ERH1 and GCS proteins,resulting in a reduction of Glc Cers and Glc HCers molecules,which are key sphingolipid(SL)species for lipid raft *** findings suggest thatα1-COP protein,together with SL modifiers controlling lipid raft compositions,regulates the subcellular localization of GPI-anchored PDBG2 proteins,and hence the callose turnover at PD and symplasmic movement of *** findings provide the first key clue to link the COPI-mediated intracellular trafficking pathway to the callose-mediated intercellular signaling pathway through PD.

关键词： callose coatomer proteins membrane-bound vesicle plasmodesmata sphingolipid enzymes

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