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Journal of Magnesium and Alloys 2022年第6期10卷 1672-1679页

作者： Joo-hee Kang Jiwon Park Kyung Song chang-Seok Oh Oleg Shchyglo Ingo Steinbach Korea Institute of Materials Science Changwon 51508Republic of Korea Interdisciplinary Centre for Advanced Materials Simulation Ruhr-University Bochum44801 BochumGermany

In this study the partially divorced eutectic microstructure ofα-Mg andβ-Mg17Al12was investigated by electron backscatter diffraction,transmission electron microscopy,and phase-field modeling in hypoeutectic Mg-Al *** orientation relationships between the individual eutecticαgrains,eutecticβphase,and primaryαgrains were *** the amount of eutectic morphology is primarily determined by the Al content,the in-depth microstructure analyses and the phase-field simulation suggest non-interactive nucleation and growth of eutecticαphase in theβphase grown on the interdendritic primaryα***,phase-field simulations showed a preferred nucleation sequence where theβphase nucleates first and subsequently triggers the nucleation of eutecticαphase at the movingβphase solidification front,which supports the microstructural analysis results.

关键词： Mg-Al alloy Partially divorced eutectic Solidification Electron backscatter diffraction Phase-Field modeling

Enhanced charge separation by interchain hole delocalization in nonfullerene acceptor-based bulk heterojunction materials

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Carbon Energy 2023年第7期5卷 27-37页

作者： chang-Mok Oh Sujung Park Jihoon Lee Sung Heum Park Shinuk cho In-Wook Hwang Advanced Photonics Research Institute Gwangju Institute of Science and TechnologyGwangjuRepublic of Korea Department of Physics and Energy Harvest Storage Research Center University of UlsanUlsanRepublic of Korea Department of Physics Pukyong National UniversityBusanRepublic of Korea

Bulk heterojunction(BHJ)composites show improved power conversion efficiencies when optimized in terms of morphology using various film processing methods.A reduced carrier recombination loss in an optimized BHJ was characterized ***,the driving force that leads to this reduction was not clearly *** this study,we focus on the decreased carrier recombination loss and its driving force in optimized nonfullerene acceptor-based PTB7-Th:IEICO-4F BHJ *** demonstrate that the optimized BHJ shows deactivation in the sub-nanosecond nongeminate carrier recombination *** driving force for this deactivation was determined to be the improved interchain hole delocalization between the *** enhanced interchain hole delocalization was observed using steady-state photoinduced absorption(PIA)*** particular,increased splitting between the polaron PIA bands was ***,improved interchain hole delocalization was observed for other state-of-the-art BHJ materials,including D18:Y6 with optimized morphologies.

关键词： bulk heterojunction interchain hole delocalization nonfullerene acceptor photoinduced absorption spectroscopy solar cell

Volumetric fluid analysis of fixed monthly anti-VEGF treatment in patients with neovascular age-related macular degeneration

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International Journal of Ophthalmology(English edition) 2023年第6期16卷 909-914页

作者： Bo hee Kim In Boem chang Hyeong Gon Yu In Hwan Hong Department of Ophthalmology Kangbuk Samsung HospitalSungkyunkwan University School of MedicineSeoul 03181Republic of Korea Seoul On Eye Clinic Seoul 03355Republic of Korea Department of Ophthalmology Seoul National University College of MedicineSeoul National University HospitalSeoul 03080Republic of Korea Retina Center Sky Eye InstituteSeoul 06536Republic of Korea Department of Ophthalmology Dongtan Sacred Heart HospitalHallym University Medical CenterHwaseong-siGyeonggido 18450Republic of Korea

·AIM:To evaluate visual outcomes and changes in fluid after administering monthly anti-vascular endothelial growth factor(VEGF)injections to treat neovascular agerelated macular degeneration(n AMD)with subretinal fluid(SRF)and pigment epithelial detachment(PED).·METHODS:This prospective study included eyes with n AMD previously treated with as-needed anti-VEGF *** patients were treated with six monthly intravitreal injections of *** volumetric segmentation analyses of the SRF and PED were *** main outcome measures included best-corrected visual acuity(BCVA),and SRF and PED volumes.·RESULTS:Twenty eyes of 20 patients were included in this *** the 6-month follow-up,BCVA and PED volume did not change significantly(P=0.110 and 0.999,respectively)but the mean SRF volume decreased from 0.53±0.82 mm3 at baseline to 0.08±0.23 mm3(P=0.002).The absorption rate of the SRF volume was negatively correlated with the duration of previous antiVEGF treatment(P=0.029).Seven of the 20 eyes(35%)showed a fluid-free macula and significant improvement in BCVA(P=0.036)by month 6.·CONCLUSION:Quantifying the SRF can precisely determine the patient’s responsiveness to anti-VEGF treatment of n AMD.

关键词： neovascular age-related macular degeneration anti-vascular endothelial growth factor treatment drug tolerance persistent subretinal fluid volumetric fluid analysis

Sexual dimorphism and sex-differential migration of Little Buntings(Emberiza pusilla)at an East Asian stopover site

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Avian Research 2022年第1期13卷 87-93页

作者： Sook-Young cho Hyun-Young Nam Se-Young Park chang-Yong choi Bird Research Center Korea National Park Research InstituteJeonnam58863Republic of Korea Division of Zoology Honam National Institute of Biological ResourcesMokpo58762Republic of Korea School of Biological Sciences College of Natural SciencesSeoul National UniversitySeoul08826Republic of Korea Department of Agriculture Forestry and BioresourcesCollege of Agriculture and Life SciencesSeoul National UniversitySeoul08826Republic of Korea

Sex differences in morphology provide key information for understanding a species'morphological adaptations in relation to the evolution of sexual *** migratory birds,morphological traits have adapted to long-distance travel,and sexual dimorphism is typically related to sex-differential migration *** Buntings(Emberiza pusilla)have one of the longest migrations and are the least dichromatic species among the Emberiza *** this study,we measured sexual size dimorphism and sexual dichromatism of Little Buntings in relation to the spring arrival dates at a stopover site in *** length was the most important predictor for identifying sex;the wings of males were longer than those of *** also had a significantly stronger chestnut color of the head feathers than females,but this color difference was more prominent in the spring than in the *** arrived earlier than females by four *** dates correlated with both size and color,but unlike other bunting species previously studied in the same area,there was no clear sex-differential trend in the relationship between arrival date and morphological *** differences in the degree of sexual dichromatism suggest that chestnut plumage coloration can be used as a social or sexual signal of males in the breeding *** correlation of size and color to early arrival regardless of sex may indicate that a preference for assortative mating exists or that a sex-differential migration strategy is not clearly defined in the early stages of northward *** findings on the sexual dimorphism of Little Buntings provide insight into the evolution of the sex-differential migration of buntings in the East Asian Flyway.

关键词： Digital photography Emberiza pusilla Little Bunting Protandrous migration Sexual dichromatism Sexual dimorphism

Micro/nano-wrinkled elastomeric electrodes enabling high energy storage performance and various form factors

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Carbon Energy 2023年第12期5卷 137-152页

作者： changeun Yoo Seokmin Lee Yongkwon Song Woojae chang Moon Kyu Park Younji Ko Jinhan cho Department of Chemical and Biological Engineering Korea UniversitySeoulSeongbuk-guRepublic of Korea KU-KIST Graduate School of Converging Science and Technology Korea UniversitySeoulSeongbuk-guRepublic of Korea Soft Hybrid Materials Research Center Advanced Materials Research DivisionKorea Institute of Science and Technology(KIST)Seongbuk-guSeoulRepublic of Korea

Stretchable elastomer-based electrodes are considered promising energy storage electrodes for next-generation wearable/flexible electronics requiring various shape ***,these elastomeric electrodes suffer from the limited electrical conductivity of current collectors,low charge storage capacities,poor interfacial interactions between elastomers and conductive/active materials,and lack of shape *** this study,we report hierarchically micro/nano-wrinkle-structured elastomeric electrodes with notably high energy storage performance and good mechanical/electrochemical stabilities,simultaneously allowing various form *** this study,a swelling/deswelling-involved metal nanoparticle(NP)assembly is first performed on thiol-functionalized polydimethylsiloxane(PDMS)elastomers,generating a micro-wrinkled structure and a conductive seed layer for subsequent *** the assembly of metal NPs,the conformal electrodeposition of Ni and NiCo layered double hydroxides layers with a homogeneous nanostructure on the micro-wrinkled PDMS induces the formation of a micro/nano-wrinkled surface morphology with a large active surface area and high electrical *** on this unique approach,the formed elastomeric electrodes show higher areal capacity and superior rate capability than conventional elastomeric electrodes while maintaining their electrical/electrochemical properties under external mechanical *** notable mechanical/electrochemical performance can be further enhanced by using spiral-structured PDMS(stretchability of~500%)and porous-structured PDMS(areal capacity of~280μAh cm^(-2)).

关键词： elastomeric electrodes electrodeposition micro/nano-wrinkled structures

Efficacy of a Community-Based Trauma Recovery Program after a Fire Disaster

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International Journal of Mental Health Promotion 2022年第1期24卷 85-94页

作者： Yun-Jung choi Mi-Ra Won Dong-hee cho Red Cross College of Nursing Chung-Ang UniversitySeoulKorea Department of Nursing Daewon University CollegeJecheonKorea

As industries develop,fire disasters and their associated damage are *** the mental health of victims is imperative because this is an essential issue for community recovery after a *** study was conducted to determine the efficacy of a program implemented by a community mental health center based on the investigation of the victims’depression and post-traumatic stress disorder(PTSD)levels immediately after the disaster and at one-year *** a result,victims’depression and PTSD recovered over time,and more changes were *** particular,the high-risk group for PTSD showed a high program participation rate,and there was significant recovery over time compared with the group without *** on these results,community mental health programs are an effective way to increase community mental health after *** the future,community-based recovery programs after disasters should be expanded,and administrative support for them should be developed.

关键词： Fire disaster victims post-traumatic stress disorder depression community mental health services

Comprehensive molecular analysis to predict the efficacy ofchemotherapy containing bevacizumab in patients with metastaticcolorectal cancer

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肿瘤学研究(英文) 2023年第6期31卷 855-866页

作者： SUNG hee LIM hee JIN cho KYOUNG-MEE KIM HO YEONG LIM WON KI KANG JEEYUN LEE YOUNG SUK PARK hee CHEOL KIM SEUNG TAE KIM Division of Hematology/Oncology Department of MedicineSamsung Medical CenterSungkyunkwan University School of MedicineGangnam-guSeoul06351Korea Precision Medicine Research Institute Samsung Medical CenterGangnam-guSeoul06351Korea Department of Biomedical Convergence Science and Technology Kyungpook National UniversityDaegu41566Korea Department of Pathology and Translational Genomics Samsung Medical CenterSungkyunkwan University School of MedicineSeoul06351Korea Department of Surgery Samsung Medical CenterSungkyunkwan University School of MedicineGangnam-guSeoul06351Korea

Background:Although bevacizumab is an important treatment for metastatic colorectal cancer(CRC),not allpatients with CRC benefit from it;in unselected patient populations,only modest survival benefits have been ***:We evaluated clinical outcomes in 110 patients using comprehensive molecular characterization to identifybiomarkers for a response to bevacizumab-containing *** molecular analysis comprised whole-exomesequencing,ribonucleic acid sequencing,and a methylation array on patient ***:Genomic and molecularcharacterization was successfully conducted in 103 *** of 103 CRC samples were hypermutated,and none ofthe non-hypermutant tumors were microsatellite *** those 103 patients,89 had adenocarcinoma(ADC),15 were diagnosed with mucinous ADC,and six had signet-ring cell carcinoma(SRCC).Consensus molecular subtype(CMS)2 was unique to *** the four SRCCs,two were CMS1,one was CMS4,and the other was *** status was a significantly enriched factor in responders to bevacizumab *** growth factorreceptor(FGFR)1/2 signaling was upregulated in non-responders,whereas cell cycle,transfer ribonucleic acidprocessing,nucleotide excision repair,and oxidative phosphorylation pathways were enriched in ***,IGF1 was differentially expressed in non-responders(log2 fold change=−1.43,p=4.11×10^(−5),falsediscovery rate=0.098),and FLT1 was highly methylated in non-responders(p=7.55×10^(−3)).When the molecularpathways were reanalyzed separately according to the backbone chemotherapy(FOLFOX ***),thesignificance of the molecular pathways varied according to the backbone ***:This studysought a subset of CRC patients with a distinct clinical response to chemotherapy containing *** need to be validated in a large group of homogenous patient cohort and examined according to the differentchemotherapy backbones to create personalized therapeutic oppor

关键词： Bevacizumab Whole-exome sequencing Ribonucleic acid sequencing Methylation array Colorectal cancer

Neotectonic transpressional intraplate deformation in eastern Eurasia: Insights from active fault systems in the southeastern Korean Peninsula

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Geoscience Frontiers 2023年第4期14卷 123-136页

作者： Namgwon Kim Seung-Ik Park chang Soo cho Youngbeom Cheon Alexander L.Peace Department of Geology Kyungpook National UniversityDaegu 41566Republic of Korea Earthquake Research Center Korea Institute of Geosciences and Mineral ResourcesDaejeon 34132Republic of Korea Active Tectonics Research Center Korea Institute of Geosciences and Mineral ResourcesDaejeon 34132Republic of Korea School of Earth Environment and SocietyMcMaster UniversityHamiltonON L8S 4K1Canada

Transpression occurs in response to oblique convergence across a deformation zone in intraplate regions and plate *** Korean Peninsula is located at an intraplate region of the eastern Eurasian Plate and has been deformed under the ENE–WSW maximum horizontal compression since the late *** this study,we analyzed short-term instrumental seismic(focal mechanism)and long-term paleoseis-mic(Quaternary fault outcrop)data to decipher the neotectonic crustal deformation pattern in the south-eastern Korean ***(paleo-)seismic data acquired from an NNE–SSW trending deformation zone between the Yangsan and Ulleung fault zones indicate spatial partitioning of crustal deformation by NNW–SSE to NNE–SSW striking reverse faults and NNE–SSW striking strike-slip faults,supporting a strike-slip partitioned transpression *** instantaneous and finite neotectonic strains,estimated from the focal mechanism and Quaternary outcrop data,respectively,show discrepan-cies in their axes,which can be attributed to the switching between extensional and intermediate axes of finite strain during the accumulation of wrench-dominated ***,some major faults,including the Yangsan and Ulsan fault zones,are relatively misoriented to slip under the current stress condition but,paradoxically,have more(paleo-)seismic records indicating their role in accommodating the neotectonic transpressional *** propose that fluids,heat flow,and lithospheric structure are potential factors affecting the reactivation of the relatively misoriented major *** findings provide insights into the accommodation pattern of strain associated with the neotectonic crustal extrusion in an intraplate region of the eastern Eurasian Plate in response to the collision of the Indian Plate and the sub-duction of the Pacific/Philippine Sea Plates.

关键词： Transpression Strike-slip partition Intraplate strain accommodation Fault-slip analysis Slip tendency analysis

Relationship between treatment types and blood–brain barrier disruption in patients with acute ischemic stroke:Two case reports

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World Journal of Clinical Cases 2022年第7期10卷 2351-2356页

作者： Youngbeom Seo Jonghoon Kim Min Cheol chang Hyungkyu Huh Eun-hee Lee Department of Neurosurgery College of MedicineYeungnam UniversityDaegu 42415South Korea Department of Rehabilitation Medicine College of MedicineYeungnam UniversityDaegu 42415South Korea Medical Interdisciplinary Team Medical Device Development CenterDaegu-Gyeongbuk Medical Innovation FoundationDaegu 41061South Korea

BACKGROUND Blood-brain barrier(BBB)disruption plays an important role in the development of neurological dysfunction in ischemic ***,diagnostic modalities that can clearly diagnose the degree of BBB disruption in ischemic stroke are ***,we describe two cases in which the usefulness of dynamic contrastenhanced magnetic resonance imaging(DCE-MRI)in detecting BBB disruption was evaluated after treatment of acute ischemic stroke using two different *** SUMMARY The two patients of similar age and relatively similar cerebral infarction locations were treated conservatively or with thrombectomy,although their sex was *** a result of analysis by performing DCE-MRI,it was confirmed that BBB disruption was significantly less severe in the patient who underwent thrombectomy(P=3.3×10^(-7)),whereas the average Ktrans of the contralateral hemisphere in both patients was similar(2.4×10^(-5)min^(-1) and 2.0×10^(-5)min^(-1)).If reperfusion is achieved through thrombectomy,it may indicate that the penumbra can be saved and BBB recovery can be *** Our cases suggest that BBB disruption could be important if BBB permeability is used to guide clinical treatment.

关键词： Blood-brain barrier Ischemic stroke Dynamic contrast-enhanced magnetic resonance imaging Thrombectomy Penumbra Case report

Atomic Heterointerface Engineering of Nickel Selenide Confined Nickel Molybdenum Nitride for High-Performance Solar-Driven Water Splitting

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Energy & Environmental Materials 2023年第2期6卷 397-407页

作者： Jingqiang Wang Duy Thanh Tran Kai chang Sampath Prabhakaran Do Hwan Kim Nam Hoon Kim Joong hee Lee Department of Nano Convergence Engineering Jeonbuk National UniversityJeonjuJeonbuk 54896Korea Division of Science Education Graduate School of Department of Energy Storage/Conversion EngineeringJeonbuk National UniversityJeonjuJeonbuk 54896Korea Carbon Composite Research Center Department of Polymer-Nano Science and TechnologyJeonbuk National UniversityJeonjuJeonbuk 54896Korea

A heterostructured electrocatalyst of small NiSe_(2) nanoparticles confined NiMoN nanorods(NiSe_(2)-NPs/NiMoN-NRs)is prepared to accelerate both the hydrogen evolution reaction(HER)and oxygen evolution reaction(OER)in a same alkaline *** synergistic effects caused by the combination of merits derived from NiSe_(2) and NiMoN phases trigger an optimum electronic structure with high density of state at near Fermi level and enhance adsorption free energy,thereby resulting in excellent catalytic activities and strengthened working *** catalyst requires a low overpotential of 58 mV for HER and 241 mV for OER to reach 10 mA cm^(−2) in 1.0 M KOH electrolyte.A twoelectrode electrolyzer based on the developed catalyst shows outstanding cell voltage of 1.51 and 1.46 V to reach 10 mA cm^(−2) in 1.0 M and 30 wt%KOH solution at 25℃ for overall water splitting,*** addition,the solardriven water splitting process delivers a high solar-to-H_(2) conversion efficiency of∼18.4%,impressively unveiling that the developed bifunctional catalyst is highly potential for overall water splitting to produce green hydrogen fuel.

关键词： Bifunctional electrocatalyst Novel NiSe_(2)/NiMoN heterostructures Solardriven water splitting Synergistic effects