2025 연구성과 (42 / 151)

※ 컨트롤 + 클릭으로 열별 다중 정렬 가능합니다.
Excel 다운로드
WoS SCOPUS Document Type Document Title Abstract Authors Affiliation ResearcherID (WoS) AuthorsID (SCOPUS) Author Email(s) Journal Name JCR Abbreviation ISSN eISSN Volume Issue WoS Edition WoS Category JCR Year IF JCR (%) FWCI ⓘ FWCI Update Date WoS Citation SCOPUS Citation Keywords (WoS) KeywordsPlus (WoS) Keywords (SCOPUS) KeywordsPlus (SCOPUS) Language Publication Stage Publication Year Publication Date DOI JCR Link DOI Link WOS Link SCOPUS Link
○ ○ Article ⓘ Long-Term Hepatic and Extrahepatic Outcomes of Chronic Hepatitis C Patients After Sofosbuvir-Based Treatment (LONGHEAD Study) ⓘ Background/Aims: Direct-acting antivirals (DAAs) are highly effective in treating hepatitis C virus (HCV) infection. The long-term hepatic and extrahepatic outcomes of DAAs in chronic hepatitis C (CHC) patients receiving curative antivirals are elusive. Methods: CHC patients were retrieved from two phase III sofosbuvir-based clinical trials conducted from 2013-2014. Patients who achieved a sustained virological response have been followed prospectively for 5 years since 2016. A propensity score-matched interferon-based historical control with a 1:3 ratio was used for comparison. Quality of life (QoL) was measured by the SF-36, liver fibrosis was measured by electrography, and fibrosis-related markers were followed annually in the prospective cohort. Results: A total of 160 DAA- and 480 interferon-treated patients were enrolled. Twenty-eight patients developed hepatocellular carcinoma (HCC) over a follow-up period of 4424 person-years (annual incidence: 0.6%). The incidence of HCC did not differ significantly between the DAA cohort and interferon-treated patients (P = 0.07). Cox regression analysis revealed that FIB-4 was the only factor independently associated with HCC development (hazard ratio [HR]: 95% confidence interval [CI] 3.59/1.68-7.66, P = 0.001). The incidence of newly developed cardio-cerebrovascular disease was 13.8 per 1000 person-years and 0.9 per 1000 person-years in interferon-treated patients and the DAA cohort, respectively (P < 0.001). Interferon-based patients had a significantly greater incidence of cardio-cerebrovascular disease (HR/CI 3.39/1.28-8.96, P = 0.014). There was a substantial decrease in liver stiffness (P-trend = 0.08) and M2BPGi (P-trend = 0.05) and a significant reduction in LOXL2 (P-trend = 0.02) over 5 years. A significant decrease in QoL was observed in role limitations due to physical health and emotional problems, whereas the other parameters were maintained consistently throughout the 5 years of follow-up. Conclusions: HCV eradication by DAAs improved liver- and non-liver-related outcomes, constantly promoted liver fibrosis regression, and maintained quality of life after HCV cure. ⓘ Huang, Chung-Feng; Heo, Jeong; Chien, Rong-Nan; Baek, Yang-Hyun; Kao, Jia-Horng; Kim, Ju-Hyun; Chang, Ting-Tsung; Byun, Kwan-Soo; Chen, Jyh-Jou; Jeong, Sook-Hyang; Hu, Tsung-Hui; Kim, Young-Seok; Peng, Cheng-Yuan; Tak, Won-Young; Wang, Horng-Yuan; Yoon, Seung-Kew; Sheen, I. -Shyan; Hsu, Yu-Chun; Yim, Hyung-Joon; Tsai, Pei-Chien; Yeh, Ming-Lun; Ahn, Sang-Hoon; Dai, Chia-Yen; Paik, Seung-Woon; Huang, Jee-Fu; Kim, Yoon-Jun; Chuang, Wan-Long; Lim, Young-Suk; Yu, Ming-Lung ⓘ Kaohsiung Med Univ, Kaohsiung Med Univ Hosp, Dept Internal Med, Hepatobiliary Div, 100 Tzyou Rd, Kaohsiung 807, Taiwan; Kaohsiung Med Univ, Kaohsiung Med Univ Hosp, Hepatitis Ctr, 100 Tzyou Rd, Kaohsiung 807, Taiwan; Pusan Natl Univ, Dept Internal Med, Coll Med, Busan, South Korea; Pusan Natl Univ Hosp, Biomed Res Inst, Busan, South Korea; Chang Gung Mem Hosp, Dept Gastroenterol & Hepatol, Linkou Branch, Taoyuan, Taiwan; Dong A Univ, Coll Med, Dept Internal Med, Busan, South Korea; Natl Taiwan Univ Hosp, Dept Internal Med, Hepatitis Res Ctr, Taipei, Taiwan; Gachon Univ, Dept Internal Med, Gil Hosp, Incheon, South Korea; Natl Cheng Kung Univ, Natl Cheng Kung Univ Hosp, Dept Internal Med, Div Gastroenterol & Hepatol,Coll Med, Tainan, Taiwan; Korea Univ, Guro Hosp, Coll Med, Dept Internal Med, Seoul, South Korea; Chi Mei Med Ctr, Dept Internal Med, Liouying Div Gastroenterol & Hepatol, Tainan, Taiwan; Seoul Natl Univ, Bundang Hosp, Dept Internal Med, Seongnam, South Korea; Kaohsiung Chang Gung Mem Hosp, Div Hepatogastroenterol, Dept Internal Med, Taoyuan, Taiwan; Chang Gung Univ, Coll Med, Taoyuan, Taiwan; Soon Chun Hyang Univ Hosp, Dept Internal Med, Bucheon Hosp, Asan, South Korea; China Med Univ, China Med Univ Hosp, Ctr Digest Med, Dept Internal Med,Sch Med, Taichung, Taiwan; Kyungpook Natl Univ Hosp, Sch Med, Dept Internal Med, Daegu, South Korea; Taipei MacKay Mem Hosp, Dept Internal Med, Div Gastroenterol, Taipei 10449, Taiwan; Seoul St Marys Hosp, Dept Internal Med, Seoul, South Korea; Inje Univ, Busan Paik Hosp, Dept Internal Med, Busan, South Korea; Changhua Christian Hosp, Dept Gastroenterol & Hepatol, Changhua, Taiwan; Korea Univ, Dept Internal Med, Ansan Hosp, Ansan, South Korea; Yonsei Univ, Coll Med, Inst Gastroenterol, Dept Internal Med, Seoul, South Korea; Sungkyunkwan Univ, Seoul, South Korea; Seoul Natl Univ Hosp, Seoul, South Korea; Univ Ulsan, Coll Med, Asan Med Ctr, Dept Gastroenterol,Liver Ctr, 88 Olymp Ro 43 Gil, Seoul 05505, South Korea ⓘ Peng, Cheng-Yuan/JVD-9064-2023; Lim, Young-Suk/AFQ-5165-2022; Kao, JH/AAB-8947-2019; Heo, Jeong/MHQ-1390-2025; Chuang, Wan-Long/C-9536-2009; Jeong, Sook-Hyang/J-5642-2012; Yu, Ming-Lung/AAZ-4306-2020; Dai, Chia-Yen/V-6560-2019 ⓘ 23088951200; 8422238800; 12787728600; 15844799800; 57222565258; 57216524819; 7404725147; 57226086928; 7501900049; 7402425167; 57146040300; 57207444475; 59648534200; 7004074582; 7501734143; 59728353800; 7004969433; 59728162400; 57208749821; 7005664934; 7202064660; 36899823200; 59146327300; 57141624500; 7102643032; 7407186708; 59475297000; 57220662417; 57226548822; 57226509389 ⓘ limys@amc.seoul.kr; fish6069@gmail.com; ⓘ INFECTIOUS DISEASES AND THERAPY ⓘ INFECT DIS THER ⓘ 2193-8229 2193-6382 14 5 SCIE INFECTIOUS DISEASES ⓘ 2024 5.3 9.9 0 2025-05-07 ⓘ 0 0 DAA; HCV; SVR; Long-term outcome ⓘ DIRECT-ACTING ANTIVIRALS; DOSE COMBINATION TABLET; HEPATOCELLULAR-CARCINOMA; TAIWANESE PATIENTS; HCV ERADICATION; PLUS RIBAVIRIN; PHASE 3B; RISK; THERAPY; NATIONWIDE ⓘ DAA; HCV; Long-term outcome; SVR ⓘ alanine aminotransferase; aspartate aminotransferase; gamma glutamyltransferase; sofosbuvir; adult; antiviral therapy; Article; chronic hepatitis C; clinical outcome; controlled study; diabetes mellitus; dyslipidemia; electrography; enzyme linked immunosorbent assay; estimated glomerular filtration rate; female; Hepatitis C virus; human; hypertension; liver biopsy; liver cell carcinoma; liver fibrosis; male; outcome assessment; overall survival; phase 3 clinical trial; platelet count; propensity score; questionnaire; randomized controlled trial; sandwich ELISA; sustained virologic response; transient elastography ⓘ English 2025 2025-05 10.1007/s40121-025-01145-y ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Precipitation behavior of extruded AZ80 magnesium alloy subjected to minor tensile deformation ⓘ This study investigates the precipitation behavior of an extruded Mg-8Al-0.5Zn (AZ80) alloy subjected to 1.0% tensile deformation along the extrusion direction (ED) to examine the effects of minor slip-inducing deformation on precipitate formation and distribution during aging. The as-homogenized (AH) and pre-tensioned (PT) materials exhibit similar microstructures, including grain size and basal texture, except for a higher dislocation density in the PT material. It was hypothesized that the internal strain energy induced by pre-tension might influence continuous precipitate (CP) formation during aging. However, analysis of factors such as the Schmid factor, kernel average misorientation, and CP features (area fraction, density, and size) across 54 grains reveals no correlation among these variables. Instead, CP bands form unevenly in both AH and PT materials after aging, significantly impacting peak hardness and aging kinetics. These CP bands are not influenced by crystallographic orientation or internal strain energy but are attributed to the non-uniform distribution of Al solute atoms in the extrusion billet. The compositional inhomogeneity of the billet leads to discontinuous precipitate bands in the asextruded material, which evolve into CP bands during the subsequent aging. Thus, small tensile deformation has minimal influence on precipitation behavior, which is predominantly determined by the inherent inhomogeneity of solute atoms in the billet. ⓘ Lee, Ji-Yoon; Yu, Hui; Kim, Hyun Ji; Park, Sung Hyuk ⓘ Kyungpook Natl Univ, Dept Mat Sci & Met Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, Grad Sch Mat Sci & Engn, Daegu 41566, South Korea; Hebei Univ Technol, Sch Mat Sci & Engn, Tianjin 300130, Peoples R China; Missile Res Inst, Agcy Def Dev, Daejeon 34060, South Korea ⓘ Lee, Joo-Yong/F-4545-2014 ⓘ 59643852600; 7405855938; 59866513600; 54786002500 ⓘ khj0531@knu.ac.kr; sh.park@knu.ac.kr; ⓘ JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T ⓘ J MATER RES TECHNOL ⓘ 2238-7854 2214-0697 35 SCIE MATERIALS SCIENCE, MULTIDISCIPLINARY;METALLURGY & METALLURGICAL ENGINEERING ⓘ 2024 6.6 9.9 0 2025-05-07 ⓘ 0 0 AZ80 alloy; Pre-tension; Aging; Precipitate; Al solute atoms ⓘ STRAIN-GRADIENT PLASTICITY; MECHANICAL-PROPERTIES; MICROSTRUCTURAL EVOLUTION; AGING BEHAVIOR; MG ALLOY; GRAIN; AZ91; DISLOCATIONS; EXTRUSION; SIZE ⓘ Aging; Al solute atoms; AZ80 alloy; Pre-tension; Precipitate ⓘ Aging of materials; Aluminum alloys; Billets (metal bars); Brinell Hardness; Crystal orientation; Extrusion; Rockwell hardness; Zinc alloys; Al solute atom; Az80 alloy; AZ80 magnesium alloy; Energy; Grainsize; Internal strains; Pre-tension; Precipitation behaviour; Solute atoms; Tensile deformation; Magnesium alloys ⓘ English 2025 2025 (MAR-APR) 10.1016/j.jmrt.2025.02.058 ⓘ 바로가기 바로가기 바로가기 바로가기
○ Article ⓘ Comparative study on the toxicity of Polygoni Multiflori Radix: Assessment of decoction extract and powder in single-dose and 13-week repeated-dose toxicity studies in Sprague-Dawley rats ⓘ Ethnopharmacological relevance: Polygoni Multiflori Radix (PMR) is a traditional Chinese herbal medicine widely used for its biological activities. PMR's major components vary by extract form. However, toxicity studies on PMR decoction extract and powder are needed to ensure its safe use. Aim of the study: This study aimed to evaluate the single and repeated administration toxicity studies of PMR decoction extract and powder. Materials and methods: Both test items were orally administered to SD rats at doses of 0, 1000, 2000, and 5000 mg/kg for the single-dose, and doses of 0, 313, 625, 1250, 2500, and 5000 mg/kg/day for the 13-week repeated-dose toxicity studies. Results: The single-dose toxicity study showed no mortality, changes in body weight, clinical signs, or macroscopic findings, with the approximate lethal dose of both test items exceeding 5000 mg/kg. The 13-week repeated-dose toxicity study showed no treatment-related changes in body weight, food consumption, ophthalmology, or macroscopic findings in both test items. In histopathology, stomach hyperplasia occurred at 5000 mg/kg/day in both sexes for PMR decoction extract and in males for PMR powder. Basophilia of tubules was observed in the kidneys of males at 5000 mg/kg/day in the PMR decoction extract group. Therefore, the no observed adverse effect level of PMR decoction extract was set to 2500 mg/kg/day and PMR powder was set to 2500 mg/kg/day for males and exceeded 5000 mg/kg/day for females. Conclusions: This study establishes the non-toxic doses of PMR decoction extract and powder, determining the non-toxic dose levels based on the different extract forms. © 2025 ⓘ Min, Seung Eui; Jang, Min Seong; Lee, Byoung-Seok; Kim, Woojin; Kim, Yong-Bum; Min, Byung Sun; Kim, Jeong Ah; Han, Kang-Hyun ⓘ Human and Environmental Toxicology, University of Science and Technology, 217 Gajeong-ro, Yuseong-gu, Daejeon, 34113, South Korea, Department of Advanced Toxicology Research, Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, South Korea; Department of Advanced Toxicology Research, Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, South Korea; Department of Advanced Toxicology Research, Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, South Korea; Department of Advanced Toxicology Research, Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, South Korea; Department of Advanced Toxicology Research, Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, South Korea; College of Pharmacy, Daegu Catholic University, Gyeongbuk, Gyeongsan, 38430, South Korea; College of Pharmacy, Kyungpook National University, Daegu, 41566, South Korea; Human and Environmental Toxicology, University of Science and Technology, 217 Gajeong-ro, Yuseong-gu, Daejeon, 34113, South Korea, Department of Advanced Toxicology Research, Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, South Korea ⓘ ⓘ 58874897300; 57211332495; 14830337400; 57203533592; 55801563800; 59452741700; 24722570900; 57197058894 ⓘ hankh@kitox.re.kr; ⓘ Journal of Ethnopharmacology ⓘ J ETHNOPHARMACOL ⓘ 0378-8741 1872-7573 350 SCIE CHEMISTRY, MEDICINAL;INTEGRATIVE & COMPLEMENTARY MEDICINE;PHARMACOLOGY & PHARMACY;PLANT SCIENCES ⓘ 2024 5.4 10.0 0 2025-06-11 ⓘ 0 ⓘ ⓘ 13-Week repeated-dose toxicity study; Approximate lethal dose; No observed adverse effect level; Polygoni Multiflori Radix; Single-dose toxicity study ⓘ Animals; Dose-Response Relationship, Drug; Drugs, Chinese Herbal; Female; Male; No-Observed-Adverse-Effect Level; Plant Extracts; Plant Roots; Powders; Rats; Rats, Sprague-Dawley; Chinese drug; polygoni multiflori radix decoction extract; polygoni multiflori radix powder; unclassified drug; herbaceous agent; plant extract; animal cell; animal experiment; animal model; animal tissue; Article; basophilia; body weight; Chinese medicine; clinical chemistry; controlled study; female; food intake; good laboratory practice; hematology; histopathology; kidney tubule; lethal dose; male; mortality; no-observed-adverse-effect level; nonhuman; ophthalmology; organ weight; rat; repeated drug dose; single drug dose; toxicity testing; urinalysis; animal; comparative study; dose response; plant root; powder; Sprague Dawley rat ⓘ English Final 2025 10.1016/j.jep.2025.120064 ⓘ 바로가기 바로가기 바로가기
○ ○ Article ⓘ ETV5 reduces androgen receptor expression and induces neural stem-like properties during neuroendocrine prostate cancer development ⓘ Neuroendocrine prostate cancer (NEPC), an aggressive subtype induced by hormone therapy, lacks effective treatments. This study explored the role of E26 transformation-specific variant 5 (ETV5) in NEPC development. Analysis of multiple prostate cancer datasets revealed that NEPC is characterized by significantly elevated ETV5 expression compared to other subtypes. ETV5 expression increased progressively under hormone therapy through epigenetic modifications. ETV5 induced neural stem-like features in prostate cancer cells and facilitated their differentiation into NEPC under hormone treatment conditions, both in vitro and in vivo. Our molecular mechanistic study identified PBX3 and TLL1 as target genes of ETV5 that contribute to ETV5 overexpression-induced castration resistance and stemness. Notably, obeticholic acid, identified as an ETV5 inhibitor in this study, exhibited promising efficacy in suppressing NEPC development. This study highlights ETV5 as a key transcription factor that facilitates NEPC development and underscores its potential as a therapeutic target for this aggressive cancer subtype. ⓘ Lee, Jongeun; Park, Jiho; Hur, Yunjung; Um, Dahun; Choi, Hyung-Seok; Park, Joonyoung; Kim, Yewon; Lee, Jeon-Soo; Choi, Kyuha; Kim, Eunjeong; Park, Young Bin; Choi, Jae-Mun; Kim, Tae-Kyung; Lee, Yoontae ⓘ Pohang Univ Sci & Technol, Dept Life Sci, Pohang 37673, Gyeongbuk, South Korea; Kyungpook Natl Univ, Coll Nat Sci, Dept Biol, Daegu 41566, South Korea; Calici Co Ltd, Daejeon 34134, South Korea; Chungnam Natl Univ, Dept Bioartificial Intelligence Convergence, Daejeon 34134, South Korea; Korea Univ, Dept Food & Biotechnol, Sejong 30019, South Korea; Yonsei Univ, Inst Convergence Res & Educ Adv Technol, Seoul 03722, South Korea ⓘ Choi, Kyuha/H-6494-2018 ⓘ 57214883539; 57208528458; 59164303300; 57223691121; 57191921650; 58044536400; 59711394800; 56893141600; 58299017200; 59814715100; 59711286200; 59711617300; 59782291800; 8986939600 ⓘ yoontael@postech.ac.kr; ⓘ PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA ⓘ P NATL ACAD SCI USA ⓘ 0027-8424 1091-6490 122 12 SCIE MULTIDISCIPLINARY SCIENCES ⓘ 2024 9.1 10.0 0 2025-05-07 ⓘ 0 0 neuroendocrine prostate cancer; androgen receptor; castration resistance; obeticholic; ETV5 ⓘ TRANSCRIPTION FACTORS; INCREASED SURVIVAL; CELLS; CASTRATION; RESISTANCE; ACID; ENZALUTAMIDE; PHENOTYPE; CARCINOMA ⓘ androgen receptor; castration resistance; ETV5; neuroendocrine prostate cancer; obeticholic acid ⓘ Animals; Carcinoma, Neuroendocrine; Cell Differentiation; Cell Line, Tumor; DNA-Binding Proteins; Gene Expression Regulation, Neoplastic; Humans; Male; Mice; Neural Stem Cells; Neuroendocrine Tumors; Prostatic Neoplasms; Receptors, Androgen; Transcription Factors; androgen; androgen receptor; androstanolone; E26 transformation specific variant transcription factor 5; enzalutamide; Hermes antigen; messenger RNA; mitogen activated protein kinase 1; mitogen activated protein kinase 3; obeticholic acid; phosphatidylinositol 3,4,5 trisphosphate 3 phosphatase; protein p53; small interfering RNA; transcription factor; transcription factor ER81; transcription factor Mash1; transcription factor Sox2; unclassified drug; androgen receptor; AR protein, human; DNA binding protein; ETV5 protein, human; transcription factor; adenocarcinoma; androgen deprivation therapy; animal experiment; animal model; Article; cancer growth; castration resistant prostate cancer; cell growth assay; cell invasion; chromatin immunoprecipitation; chromatin structure; clonogenic assay; controlled study; DNA structure; down regulation; drug efficacy; drug transformation; DU145 cell line; epigenetic modification; gene expression; gene ontology; gene overexpression; gene set enrichment analysis; genetic transfection; histone modification; hormonal therapy; human; human cell; LNCaP cell line; mouse; NCI-H660 cell line; neural stem cell; neuroendocrine prostate cancer; nonhuman; overall survival; PC-3 [Human prostate carcinoma] cell line; phenotype; promoter region; prostate cancer; protein expression; protein family; real time polymerase chain reaction; RNA sequence; signal transduction; single cell analysis; tumor growth; tumor suppressor gene; Western blotting; xenograft; animal; cell differentiation; gene expression regulation; genetics; male; metabolism; neural stem cell; neuroendocrine carcinoma; neuroendocrine tumor; pathology; prostate tumor; tumor cell line ⓘ English 2025 2025-03-25 10.1073/pnas.2420313122 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Heat stress-induced meiotic restitution and tissue-specific gene responses in the sterile Lilium OT Hybrid 'Yelloween' ⓘ Heat stress poses significant challenges to plant reproduction by disrupting critical cellular processes and meiotic stability. This study investigates the molecular and cytological responses to heat stress in the sterile Lilium interspecific hybrid 'Yelloween'. Quantitative Reverse Transcription PCR analysis revealed tissue-specific expression patterns of heat shock proteins (HSP17.6, HSP70), heat shock transcription factors (HsfA2 and HsfA4), antioxidant enzymes (APX1 and APX2), a pathogenesis-related gene (PR10), and the meiosis-specific gene LIM15 (DMC1 homolog) in leaves and anthers. Anthers exhibited rapid and robust activation of HSP17.6, HsfA2, APX2, PR10, and LIM15, whereas leaves demonstrated sustained upregulation of HSP70, highlighting distinct physiological priorities under stress. Cytological observations revealed heat-induced meiotic abnormalities, including lagging chromosomes and micronuclei, which correlated with the formation of unreduced gametes. Notably, LIM15 was significantly upregulated in anthers during heat stress, suggesting its role in stabilizing meiotic processes and facilitating crossover events. The production of 2n-pollen reached 18.85 % after prolonged heat exposure (6 h at 40 degrees C), underscoring the potential of heat-induced meiotic restitution in overcoming sterility barriers. These findings provide insights into the molecular pathways that regulate heat stress responses and their implications for breeding climate-resilient ornamental hybrids. Integrating molecular and cytological approaches enhances our understanding of stress-induced reproductive adaptations and their applications in crop improvement. ⓘ Ahn, Yun-Jae; Kang, Ji-Yun; Lim, Ki-Byung ⓘ Kyungpook Natl Univ, Dept Hort Sci, Daegu 41566, South Korea; Kyungpook Natl Univ, Inst Agr Sci & Technol, Daegu 41566, South Korea ⓘ Ahn, Yun-Jae/HII-3425-2022 ⓘ 57196473453; 59320780000; 7403175915 ⓘ yjahn0121@knu.ac.kr; ⓘ SCIENTIA HORTICULTURAE ⓘ SCI HORTIC-AMSTERDAM ⓘ 0304-4238 1879-1018 342 SCIE HORTICULTURE ⓘ 2024 4.2 10.0 0 2025-05-07 ⓘ 0 0 Heat stress; Meiotic restitution; Sterile Lilium hybrid; Heat shock proteins; Heat shock transcription factors; Pathogenesis-related gene; LIM15 (DMC1 homolog) ⓘ SHOCK TRANSCRIPTION FACTOR; ABIOTIC STRESS; IDENTIFICATION; EXPRESSION; NETWORK ⓘ Heat shock proteins; Heat shock transcription factors; Heat stress; LIM15 (DMC1 homolog); Meiotic restitution; Pathogenesis-related gene; Sterile Lilium hybrid ⓘ antioxidant; fruit; homology; plant breeding; protein; reproduction; sterility ⓘ English 2025 2025-02-15 10.1016/j.scienta.2025.114032 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Influence of fruit maturity on fruit quality and skin structural composition of 'Picnic' apples at harvest and during cold storage ⓘ Fruit maturity highly influences the quality and storability of apples. Hence, this study investigated the influence of fruit maturity on the fruit quality and skin structural deformation of 'Picnic' apples at harvest and during cold storage (0 degrees C) for 6 months. Apples were harvested based on the 1-8 scales of Cornell's starch pattern index (SPI) method at low (SPI-6), medium (SPI-7), and high (SPI-8) maturity stages, respectively. The SPI-8 fruit was the heaviest at harvest, with higher soluble solids content, a deeper red skin coloration, and lower firmness and titratable acidity (TA) compared to other fruit. However, during postharvest storage, the SPI-8 fruit ripened faster than the SPI-6 and-7 fruit, resulting in reduced firmness, TA, weight, and red coloration. The micro-cracks that appeared at harvest were increasingly enlarged during storage, particularly in the skins of SPI-8 fruit. However, the lenticels and opened lenticel density were not noticeably different among SPI treatments. The cuticle thickness and morphological properties of epidermal cells steadily increased during storage in all the fruit maturity stages. The cuticular wax-associated genes such as MdCER1, MdCER6, and MdLACS1 were up-regulated, while MdCER4, MdWSD1, and MdMAH1 were down-regulated, particularly in the SPI-8 fruit compared to that of SPI-6 and-7 fruit. Overall, these results suggest that the 'Picnic' apples harvested at higher maturity stages improve fruit size, pigment coloration, and sugar levels, but reduce firmness and acidity, leading to greater loss in fruit quality and skin structural integrity during postharvest storage. ⓘ Kwon, Jung-Geun; Yoo, Jingi; Lee, Seung-Yeol; Win, Nay Myo; Kang, In-Kyu ⓘ Kyungpook Natl Univ, Dept Hort Sci, Daegu 41566, South Korea; Yeungnam Univ, Dept Hort & Life Sci, Gyongsan 38541, South Korea; Kyungpook Natl Univ, Dept Plant Med, Daegu 41566, South Korea; Natl Inst Hort & Herbal Sci, Apple Res Ctr, RDA, Daegu 43100, South Korea ⓘ ⓘ 57211404168; 56818324500; 56106499600; 42462548000; 59349261900 ⓘ naymyowin@korea.kr; kangik@knu.ac.kr; ⓘ SCIENTIA HORTICULTURAE ⓘ SCI HORTIC-AMSTERDAM ⓘ 0304-4238 1879-1018 347 SCIE HORTICULTURE ⓘ 2024 4.2 10.0 0 2025-06-11 ⓘ 0 0 Apple; Maturity; Fruit quality; Weight loss; Cuticle; Micro-cracks; Lenticels ⓘ CUTICULAR WAX; CUTICLE; GALA; CULTIVARS; STARCH; 1-METHYLCYCLOPROPENE; REGENERATION; EXPRESSION; PREDICTION; DEPOSITION ⓘ Apple; Cuticle; Fruit quality; Lenticels; Maturity; Micro-cracks; Weight loss ⓘ cell; cuticle; fruit; gene expression; harvesting; pigment; starch ⓘ English 2025 2025-05 10.1016/j.scienta.2025.114192 ⓘ 바로가기 바로가기 바로가기 바로가기
○ Article ⓘ Resilience as mediator and moderator in witnessing workplace bullying and professional identity ⓘ Aim: This study was aimed to examine the relationship among witnessing workplace bullying, resilience, and professional identity in student nurses, and to investigate the mediating and moderating effects of resilience on the relationship between witnessing workplace bullying and professional identity. Background: Workplace bullying is an increasingly serious problem in nursing practice and can affect the professional identity of student nurses. Resilience, a potential protective role, must be examined in relation to witnessing workplace bullying and professional identity. Method: Cross-sectional design and secondary data analysis were conducted. 127 junior and senior nursing students in eight colleges and universities were recruited. Results: A significant positive correlation was found between resilience and professional identity (r = 0.51, p < 0.001). However, the mediating and moderating effects of resilience were not significant. Conclusion: Resilience is a crucial factor in promoting professional identity among nursing students. However, further research investigating witnessing workplace bullying, resilience, and professional identity is required. © The Author(s), under exclusive licence to Springer Nature B.V. 2025. ⓘ Song, Yeoungsuk; Lee, Yoonmi; Lee, Junghoon ⓘ Research Institute of Nursing Science, Kyungpook National University College of Nursing, Daegu, South Korea; Daegu Health College of Nursing, Daegu, South Korea; Daegu Catholic University College of Nursing, Daegu, South Korea ⓘ ⓘ 55494171100; 57224358209; 57218996809 ⓘ kwn1212@hanmail.net; ⓘ Advances in Health Sciences Education ⓘ ADV HEALTH SCI EDUC ⓘ 1382-4996 1573-1677 SSCI;SCIE EDUCATION & EDUCATIONAL RESEARCH;EDUCATION, SCIENTIFIC DISCIPLINES;HEALTH CARE SCIENCES & SERVICES ⓘ 2024 3.3 10.0 0 2025-05-07 ⓘ 0 ⓘ ⓘ Nursing students; Professional identity; Resilience; Workplace bullying ⓘ ⓘ English Article in press 2025 10.1007/s10459-025-10435-6 ⓘ 바로가기 바로가기 바로가기
○ ○ Article ⓘ Crystallinity and composition engineering of organic crystal derived 1D carbons for advanced Li-metal based batteries ⓘ Lithium (Li) has garnered considerable interest in the battery industry owing to its outstanding theoretical capacity (3860 mAh g- 1 ) and low redox potential (-3.04 V vs. standard hydrogen electrode). Unfortunately, the practical applications of Li-metal batteries (LMBs) are impeded by low coulombic efficiency and dendritic Li formation during the charging/discharging process. One of viable strategies for overcoming these challenges involves the use of N-rich carbons in designing functional separators and current collectors. In this study, the potential of organic crystal material (Pigment Red 122; PR122) as a carbonizable nitrogen-rich material was investigated to assess its impacts on the electrochemical performance of Li-ion batteries (LIBs) and LMBs. The carbonization temperature of PR122 was precisely controlled to alter the overall content of nitrogen element in the carbon backbone. Each prepared N-rich carbon was applied to modify the surface of each separator and current collector. The PR122-derived carbon pyrolyzed at a high temperature of 1500 degrees C (PR|C1500) demonstrated lower discharge capacity. However, it exhibited better electrochemical kinetics than the PR122-derived carbon pyrolyzed at a lower temperature of 600 degrees C (PR|C600) in LIBs. In the case of LMBs, the Li/Cu cell with a PR|C600 coated separator delivered better cycle stability than the Li/Cu cell with a PR|C1500 coated separator. These results suggest that both the nitrogen content (specifically pyridinic-N and pyrrolic-N) and degree of crystallinity in the carbon platform significantly affect the electrochemical stability and kinetics of LIBs and LMBs. The foregoing is further verified by analysis using the density functional theory-based finite element method. ⓘ Park, Minsu; Lee, Kwonyun; Kang, Min Sung; Woo, Sujeong; Choi, Wootaek; Kim, Hyein; Kwon, Woong; Choi, Junghyun; Cho, Sung Beom; Jeong, Euigyung; Kim, Patrick Joohyun ⓘ Kyungpook Natl Univ, Dept Appl Chem, Daegu 41566, South Korea; Kyungpook Natl Univ, Dept Text Syst Engn, Daegu 41566, South Korea; Ajou Univ, Dept Mat Sci & Engn, Suwon 16499, South Korea; Ajou Univ, Dept Energy Syst Res, Suwon 16499, South Korea; Gachon Univ, Sch Chem Biol & Battery Engn, Seongnam Si 13120, Gyeonggi Do, South Korea ⓘ ⓘ 57402583800; 58117724700; 58062197300; 59137762800; 59301545300; 59446802100; 57208867074; 59883103900; 48461004400; 35885596300; 57195611779 ⓘ csb@ajou.ac.kr; wolfpack@knu.ac.kr; pjkim@knu.ac.kr; ⓘ CARBON ⓘ CARBON ⓘ 0008-6223 1873-3891 233 SCIE CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY ⓘ 2024 11.6 10.1 0 2025-05-07 ⓘ 0 0 Organic pigment; Carbonization; N -rich carbon; Lithiophilicity; Li metal ⓘ N-DOPED GRAPHENE; LITHIUM-ION; RECHARGEABLE BATTERIES; DENDRITE FORMATION; PERFORMANCE; SUPPRESSION; CHALLENGES; TRENDS; GROWTH; ANODE ⓘ Carbonization; Li metal; Lithiophilicity; N-rich carbon; Organic pigment ⓘ Carbonisation; Current-collector; Derived carbons; Ion batteries; Li metal; Lithiophilicity; Lithium metals; N-rich carbon; Organic crystal; Organic pigments; Carbon cycle ⓘ English 2025 2025-02 10.1016/j.carbon.2024.119870 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Direct spectroscopic evidence of increased stiffness in a series of similarly sized nanopolycrystalline diamond-lonsdaleite grains in Popigai impact diamonds ⓘ The extreme vibrational properties of unique Popigai impact diamonds were studied using second-order micro-Raman scattering with ultraviolet excitation, allowing the study of the phonon density of states over the entire Brillouin zone. Nanopolycrystalline samples with an average size of 200 mu m, representing a composite of cubic diamond and hexagonal lonsdaleite phases, were separated and processed from complex graphite-diamond mixed morphology samples collected from the Popigai Astrobleme, formed by an asteroid impact 35 million years ago in northeastern Russia. It was found that the optical edge phonons of the Brillouin zone, which are the main contributors to the second-order Raman spectra, are very sensitive to the local microscopic environment and the presence of the hexagonal phase. The frequency shift of the Raman spectral maximum at 2450 cm-(1), corresponding to the phonon density of states of the longitudinal optical modes, was analyzed in a series of nearly uniformly sized nanopolycrystalline grains (similar to 100 nm) as a function of lonsdaleite content. An anomalous steady increase in the spectral maximum frequency was observed up to similar to 25 % hexagonal phase content, which directly indicates an increase in the stiffness of the carbon-carbon bond and thus an increase in the stiffness of the two-phase lattice. ⓘ Ovsyuk, N. N.; Goryainov, S. V.; Avramov, P. V. ⓘ RAS, SB, Sobolev Inst Geol & Mineral, Novosibirsk 630090, Russia; Siberian State Univ Telecommun & Informat, Novosibirsk 630102, Russia; Tomsk State Univ, Tomsk 634050, Russia; Kyungpook Natl Univ, Dept Chem, 80 Daehak Ro, Daegu 41566, South Korea ⓘ Ovsyuk, Nikolay/O-3102-2013; Goryainov, Sergei/A-4129-2014 ⓘ 6602866010; 55927004900; 7004322420 ⓘ paul.veniaminovich@mail.tsu.ru; ⓘ CARBON ⓘ CARBON ⓘ 0008-6223 1873-3891 240 SCIE CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY ⓘ 2024 11.6 10.1 0 2025-05-07 ⓘ 0 0 Popigai astrobleme; Impact diamond; Second-order Raman spectra; Stiffness; Hexagonal lonsdaleite phase ⓘ ⓘ Hexagonal lonsdaleite phase; Impact diamond; Popigai astrobleme; Second-order Raman spectra; Stiffness ⓘ Brillouin scattering; Bulk Density; Raman scattering; Brillouin zones; Hexagonal lonsdaleite phase; Hexagonal phasis; Impact diamond; Lonsdaleite; Phonon density of state; Popigai astrobleme; Second orders; Second-order raman spectrum; Spectra's; Nanocrystals ⓘ English 2025 2025-06-05 10.1016/j.carbon.2025.120350 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Establishment of Local Diagnostic Reference Levels for Pediatric Neck CT at Nine University Hospitals in South Korea ⓘ Objective: To establish local diagnostic reference levels (DRLs) for pediatric neck CT based on age, weight, and water-equivalent diameter (WED) across multiple university hospitals in South Korea. Materials and Methods: This retrospective study analyzed pediatric neck CT examinations from nine university hospitals, involving patients aged 0-18 years. Data were categorized by age, weight, and WED, and radiation dose metrics, including volume CT dose index (CTDIvol) and dose length product, were recorded. Data retrieval and analysis were conducted using a commercially available dose-management system (Radimetrics, Bayer Healthcare). Local DRLs were established following the International Commission on Radiological Protection guidelines, using the 75th percentile as the reference value. Results: A total of 1159 CT examinations were analyzed, including 169 scans from Institution 1, 132 from Institution 2, 126 from Institution 3, 129 from Institution 4, 128 from Institution 5, 105 from Institution 6, 162 from Institution 7, 127 from Institution 8, and 81 from Institution 9. Radiation dose metrics increased with age, weight, and WED, showing significant variability both within and across institutions. For patients weighing less than 10 kg, the DRL for CTDIvol was 5.2 mGy. In the 10-19 kg group, the DRL was 5.8 mGy; in the 20-39 kg group, 7.6 mGy; in the 40-59 kg group, 11.0 mGy; and for patients weighing 60 kg or more, 16.2 mGy. DRLs for CTDIvol by age groups were as follows: 5.3 mGy for infants under 1 year, 5.7 mGy for children aged 1-4 years, 7.6 mGy for ages 5-9 years, 11.2 mGy for ages 10-14 years, and 15.6 mGy for patients 15 years or older. Conclusion: Local DRLs for pediatric neck CT were established based on age, weight, and WED across nine university hospitals in South Korea. ⓘ Hwang, Jisun; Yoon, Hee Mang; Hwang, Jae-Yeon; Choi, Young Hun; Lee, Yun Young; Lee, So Mi; Ryu, Young Jin; You, Sun Kyoung; Park, Ji Eun; Lee, Seok Kee ⓘ Ajou Univ, Sch Med, Ajou Univ Hosp, Dept Radiol, Suwon, South Korea; Univ Ulsan, Asan Med Ctr, Dept Radiol, Coll Med, Seoul, South Korea; Univ Ulsan, Res Inst Radiol, Asan Med Ctr, Coll Med, Seoul, South Korea; Seoul Natl Univ Hosp, Dept Radiol, Seoul, South Korea; Seoul Natl Univ, Coll Med, Dept Radiol, Seoul, South Korea; Pusan Natl Univ, Yangsan Hosp, Coll Med, Res Inst Convergence Biomed Sci & Technol,Dept Rad, Yangsan, South Korea; Chonnam Natl Univ Hosp, Dept Radiol, Gwangju, South Korea; Kyungpook Natl Univ Hosp, Kyungpook Natl Univ, Sch Med, Dept Radiol, Daegu, South Korea; Seoul Natl Univ, Bundang Hosp, Dept Radiol, Coll Med, Seongnam, South Korea; Chungnam Natl Univ, Chungnam Natl Univ Hosp, Coll Med, Dept Radiol, Daejeon, South Korea; Sungkyunkwan Univ, Sch Med, Samsung Med Ctr, Dept Radiol, Seoul, South Korea; Hansung Univ, Coll IT Engn, Seoul, South Korea ⓘ ; Choi, Young/O-3282-2015; Choi, Young Hun/O-3282-2015 ⓘ 57211320913; 49664266000; 57217514781; 58913906700; 57212624596; 56824903400; 56556041500; 56710939300; 57208622800; 55901679300 ⓘ jyhwang79@gmail.com; ⓘ KOREAN JOURNAL OF RADIOLOGY ⓘ KOREAN J RADIOL ⓘ 1229-6929 2005-8330 26 1 SCIE RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING ⓘ 2024 5.3 10.1 0 2025-05-07 ⓘ 0 0 Diagnostic reference level; Computed tomography; Neck; Children; Pediatric ⓘ ⓘ Children; Computed tomography; Diagnostic reference level; Neck; Pediatric ⓘ Adolescent; Body Weight; Child; Child, Preschool; Diagnostic Reference Levels; Female; Hospitals, University; Humans; Infant; Infant, Newborn; Male; Neck; Radiation Dosage; Republic of Korea; Retrospective Studies; Tomography, X-Ray Computed; poly(methyl methacrylate); adolescent; adult; aged; Article; contrast to noise ratio; diagnostic reference level; female; human; Korea; major clinical study; male; newborn; radiation dose; reference value; retrospective study; school child; South Korea; body weight; child; clinical trial; diagnostic imaging; diagnostic reference level; infant; multicenter study; neck; preschool child; radiation dose; South Korea; university hospital; x-ray computed tomography ⓘ English 2025 2025-01 10.3348/kjr.2024.0689 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Gastric fold-inspired microwrinkled carbon nanotube sheets for harvesting mechanical energy of organ motion ⓘ Biomechanical energy from daily activities and organ motion is an attractive energy source because of its sustainability. Mechanical energy harvesters, including triboelectric, piezoelectric, and chemo-mechanical harvesters, are gaining significant attention for converting energy into electrical power for self-powered devices. Chemo-mechanical energy harvesters that utilize the piezoionic effect are particularly suited for harnessing the movements of organs, such as the heart, stomach, and lungs, in the electrolyte-rich environment of the human body. However, existing harvesters are inefficient because of their unidirectional response and high modulus, which hinder organ motion. In this paper, we propose a microwrinkled carbon nanotube (CNT) sheets harvester (MCSH), inspired by the gastric wrinkle morphology and featuring a low modulus (43.9 kPa), capable of multidirectional energy harvesting. The MCSH generates energy through the relaxoionic effect during unfolding and folding cycles, achieving an open-circuit voltage change of 11.6 mV and a peak current of 112.5 A kg(-1) in 0.1 M HCl. Finally, the MCSH demonstrated stable energy generation in a human stomach model using simulated body fluids. ⓘ Oh, Seongjae; Park, Chae-Lin; Kim, Hyeon Ji; Kim, Eun Sung; Lee, Junheon; Kim, Hyun; Goh, Byeonghwa; Choi, Joonmyung; Kim, Shi Hyeong ⓘ Korea Inst Ind Technol, Dept Adv Text R&D, Ansan 15588, South Korea; Sungkyunkwan Univ, Dept Energy Sci, Suwon 16419, South Korea; Hanyang Univ, HYU KITECH Joint Dept, Seoul 04763, South Korea; A Tech Syst Co, R&D Ctr, Incheon 21312, South Korea; Kyungpook Natl Univ, Dept Text Syst Engn, Daegu 41566, South Korea; Korea Res Inst Chem Technol, Adv Mat Div, Daejeon 34114, South Korea; Univ Sci & Technol, KRICT Sch, Adv Mat & Chem Engn, Daejeon 34114, South Korea; Hanyang Univ, Dept Mech Design Engn, Seoul 04763, South Korea; Hanyang Univ, ERICA ACE Ctr, Dept Mech Engn, BK21 FOUR ERICA, Ansan 15588, South Korea ⓘ Choi, Joonmyung/G-5464-2014; Kim, Hyun/GRY-6022-2022; Choi, Joonmyung/ACA-9138-2022 ⓘ 57892679500; 57231084300; 59326629700; 55705541000; 59510648500; 57191032808; 57222722363; 51863249200; 25630662900 ⓘ joonchoi@hanyang.ac.kr; shk@kitech.re.kr; ⓘ CARBON ⓘ CARBON ⓘ 0008-6223 1873-3891 233 SCIE CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY ⓘ 2024 11.6 10.1 0 2025-05-07 ⓘ 0 0 Microwrinkles; Carbon nanotube sheets; Energy harvesting; Multidirectional; Gastric-inspired; Organ motion ⓘ TRANSPARENT; STRESS ⓘ Carbon nanotube sheets; Energy harvesting; Gastric-inspired; Microwrinkles; Multidirectional; Organ motion ⓘ Energy harvesting; Carbon nanotube sheets; Carbon nanotubes (CNT); Daily activity; Energy; Energy Harvester; Gastric-inspired; Mechanical energies; Microwrinkle; Multidirectional; Organ motion; Body fluids ⓘ English 2025 2025-02 10.1016/j.carbon.2024.119869 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Hydrocarbon ionomer/polytetrafluoroethylene composite membranes containing radical scavengers for robust proton exchange membrane water electrolysis ⓘ A hydrocarbon-based composite membrane incorporating radical scavengers is successfully fabricated using sulfonated poly(arylene ether sulfone) copolymers with a 50 % sulfonation degree (SP50), porous polytetrafluoroethylene (PTFE) substrates, and cerium oxide (CeO2) nanoparticles for proton exchange membrane water electrolysis (PEMWE). The CeO2 nanoparticles are uniformly dispersed in the SP50 solution through a ball milling, and the PTFE substrate is treated with n-propyl alcohol to improve the interfacial compatibility between the SP50/CeO2 solution and PTFE. Additionally, a five-layered structure incorporating two PTFE layers is employed to form robust interlocking interfaces between SP50 and PTFE. Consequently, the composite membrane with CeO2 exhibits excellent dimensional stability, mechanical properties, and a 3.8-fold reduction in hydrogen permeability as compared with that of the Nafion 212 (N212) membrane. In the hydrothermal tests, the composite membrane demonstrates excellent chemical stability due to the inclusion of CeO2. During PEMWE operation, the cell performance of the composite membrane is 7.42 A/cm2 at 1.9 V, surpassing those of SP50 (5.95 A/cm2) and N212 (5.66 A/cm2). Over the course of the durability test, the composite membrane exhibits the lowest degradation rate (DR). Furthermore, the molecular weight of the composite membrane decreases by only 5 %, significantly outperforming SP50, which shows a 50 % reduction. Therefore, the composite membrane with a radical scavenger provides excellent physical and chemical stability for PEMWE applications. ⓘ Park, Ga Young; Noh, Yi Sak; Jeong, Hwan Yeop; Yoon, Sang Jun; Oh, Keun-Hwan; So, Soonyong; Kim, Jeonghun; Choi, Jaewon; Yu, Duk Man ⓘ Korea Res Inst Chem Technol KRICT, Hydrogen Energy Res Ctr, Daejeon 34114, South Korea; Kyungpook Natl Univ, Dept Polymer Sci & Engn, Daegu 41566, South Korea; Yonsei Univ, Dept Chem & Biomol Engn, Seoul 03722, South Korea ⓘ Oh, Keun-Hwan/JYP-6471-2024 ⓘ 59907025000; 57985433900; 57193333422; 56564523300; 26221380900; 59907428800; 55983391300; 57210206972; 49865015000 ⓘ jhkim03@yonsei.ac.kr; jwchoi@knu.ac.kr; dmyu@krict.re.kr; ⓘ EUROPEAN POLYMER JOURNAL ⓘ EUR POLYM J ⓘ 0014-3057 1873-1945 234 SCIE POLYMER SCIENCE ⓘ 2024 6.3 10.1 0 2025-06-11 ⓘ 0 0 Proton exchange membrane water electrolysis; Sulfonated poly(arylene ether sulfone); Cerium oxide; PTFE; Composite membrane; Radical scavenger ⓘ GREEN HYDROGEN; DEGRADATION; TEMPERATURE; PERFORMANCE; DURABILITY; COPOLYMERS ⓘ Cerium oxide; Composite membrane; Proton exchange membrane water electrolysis; PTFE; Radical scavenger; Sulfonated poly(arylene ether sulfone) ⓘ Degradation; Electrolysis; Electrolytic reduction; Nafion membranes; Nanofiltration membranes; Sulfonation; % reductions; CeO 2; Cerium oxides; Nafions; Proton exchange membrane water electrolyse; Proton exchange membranes; Radical scavengers; Sulfonated poly(arylene ether sulfone); Sulphonated poly(arylene ether sulphone); Water electrolysis; Composite membranes ⓘ English 2025 2025-06-23 10.1016/j.eurpolymj.2025.114024 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Light-responsive patternable photonic cholesteric liquid crystal elastomers containing azobenzene and disulfide linkages ⓘ A light-responsive, mechanochromic, patternable, and photonic cholesteric liquid crystal elastomer (CLCEazo) has been developed by incorporating a dimethyl-substituted azobenzene diacrylate of 4,4 '-di(4-(acrylolylhexyloxy) benzoyloxy)-2,6-dimethylazobenzene (DADO) and a disulfide diacrylate of bis(2-hydroxyethyl) (ABES) via acryl thiol Michael addition reaction (ATMAR), during which a uniplanar orientation of the photonic structure was simultaneously achieved using the deswelling method. DADO and ABES in the photonic CLCE introduce light-responsive actuation and light-induced dynamic exchange reaction (DER), respectively. Photonic CLCEazo films prepared with the deswelling method has not been previously reported owing to the solubility problem of the azocompounds in organic solvents for ATMAR and deswelling. DADO introduction was facilitated by its increased solubility in nonpolar solvents suitable for ATMAR and deswelling which led the uniplar planar orientation for the photonic structure. UV light-induced DER between disulfide linkages mitigates stress generated during trans-to-cis isomerization and enables selective UV light photopatterning. These lightresponsive, patternable, and mechanochromic properties of the developed CLCEazo film are owing to combined effects of their photonic CLC structure induced by the deswelling method, DADO's cis/trans isomerization, and ABES's DER capability. These unique properties open new smart photonic applications of the CLCE triggered by light irradiation. ⓘ Luu, Khuong; Jo, Hyun-Jin; Jeong, You-Jeong; Park, Soo-Young ⓘ Kyungpook Natl Univ, Dept Polymer Sci & Engn, Polymer Nano Mat Lab, Daegu 41566, South Korea ⓘ ⓘ 58110786700; 58235142000; 58806441100; 57194041850 ⓘ psy@knu.ac.kr; ⓘ EUROPEAN POLYMER JOURNAL ⓘ EUR POLYM J ⓘ 0014-3057 1873-1945 226 SCIE POLYMER SCIENCE ⓘ 2024 6.3 10.1 0 2025-05-07 ⓘ 1 1 Cholesteric liquid crystal elastomer; Photonic; Azobenzene; Smart polymer; Circular dichroism spectroscopy ⓘ NETWORKS; STRESS ⓘ Azobenzene; Cholesteric liquid crystal elastomer; Circular dichroism spectroscopy; Photonic; Smart polymer ⓘ Azobenzene; Cholesteric liquid crystals; Elastomers; Isomerization; Laser beams; Cholesteric liquid crystal elastomer; Cholesteric liquid-crystal; Deswelling; Diacrylates; Dichroism spectroscopy; Disulfide linkages; Exchange reaction; Liquid crystal elastomers; Smart polymers; Thiol michael addition reactions; Circular dichroism spectroscopy ⓘ English 2025 2025-02-24 10.1016/j.eurpolymj.2025.113744 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Machine Learning-based Photometric Redshifts for Galaxies in the North Ecliptic Pole Wide Field: Catalogs of Spectroscopic and Photometric Redshifts ⓘ We perform an MMT/Hectospec redshift survey of the North Ecliptic Pole Wide (NEPW) field covering 5.4 deg2 and use it to estimate the photometric redshifts for the sources without spectroscopic redshifts. By combining 2572 newly measured redshifts from our survey with existing data from the literature, we create a large sample of 4421 galaxies with spectroscopic redshifts in the NEPW field. Using this sample, we estimate photometric redshifts of 77,755 sources in the band-merged catalog of the NEPW field with a random forest model. The estimated photometric redshifts are generally consistent with the spectroscopic redshifts, with a dispersion of 0.028, an outlier fraction of 7.3%, and a bias of -0.01. We find that the standard deviation of the prediction from each decision tree in the random forest model can be used to infer the fraction of catastrophic outliers and the measurement uncertainties. We test various combinations of input observables, including colors and magnitude uncertainties, and find that the details of these various combinations do not change the prediction accuracy much. As a result, we provide a catalog of 77,755 sources in the NEPW field, which includes both spectroscopic and photometric redshifts up to z similar to 2. This data set has significant legacy value for studies in the NEPW region, especially with upcoming space missions such as JWST, Euclid, and SPHEREx. ⓘ Kim, Taewan; Sohn, Jubee; Hwang, Ho Seong; Ho, Simon C. -C.; Burgarella, Denis; Goto, Tomotsugu; Hashimoto, Tetsuya; Jeong, Woong-Seob; Kim, Seong Jin; Malkan, Matthew A.; Miyaji, Takamitsu; Oi, Nagisa; Shim, Hyunjin; Song, Hyunmi; Hwang, Narae; Park, Byeong-Gon ⓘ Seoul Natl Univ, 1 Gwanak Ro, Seoul, South Korea; Seoul Natl Univ, 1 Gwanak Ro, Seoul, South Korea; Macquarie Univ, Australian Astron Opt, Sydney, 2113, Australia; Australian Natl Univ, Canberra, 2611, Australia; ARC Ctr Excellence All Sky Astrophys 3 Dimens ASTR, Parkville, ACT 2611, Australia; OzGrav Australian Res Council, Ctr Excellence Gravitat Wave Discovery, Parkville, Vic 3122, Australia; Aix Marseille Univ, CNRS, Lab Astrophys Marselle, UMR 7326, F-13388 Marseille, France; Natl Tsing Hua Univ, Inst Astron, 101,Sect 2,Kuang Fu Rd, Hsinchu 30013, Taiwan; Natl Chung Hsing Univ, Dept Phys, 145 Xingda Rd, Taichung 40227, Taiwan; Korea Astron & Space Sci Inst, 776 Daedeokdae Ro, Daejeon 34055, South Korea; Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA; Inst Astron Ensenada, Km 107 Carretera Tijuana Ensenada, Ensenada 22860, BC, Mexico; Hokkaido Informat Univ, Space Informat Ctr, Nishi-Nopporo 59-2, Ebetsu, Hokkaido 0698585, Japan; Kyungpook Natl Univ, Dept Earth Sci Educ, 80 Daehak Ro, Daegu 41566, South Korea; Chungnam Natl Univ, Dept Astron & Space Sci, Daejeon 34134, South Korea ⓘ ; HWANG, Ho/AAS-6010-2020; Malkan, Matthew/IWM-5356-2023 ⓘ 59441798200; 55200545700; 15131707100; 57216812477; 8852232400; 57151800100; 24518043000; 7102145940; 57070819300; 7006872661; 57203194972; 23968436800; 14061137700; 35749280400; 22834729000; 7402834628 ⓘ hhwang@astro.snu.ac.kr; ⓘ ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES ⓘ ASTROPHYS J SUPPL S ⓘ 0067-0049 1538-4365 277 2 SCIE ASTRONOMY & ASTROPHYSICS ⓘ 2024 8.5 10.1 0 2025-05-07 ⓘ 0 0 ⓘ STAR-FORMING GALAXIES; INFRARED PHOTOMETRY; OPTICAL SURVEY; DATA RELEASE; DEEP-FIELD; AKARI; LESS; EVOLUTION; HECTOSPEC; SPECTRA ⓘ ⓘ ⓘ English 2025 2025-04-01 10.3847/1538-4365/adb42a ⓘ 바로가기 바로가기 바로가기 바로가기
○ Article ⓘ Nitrogen-enriched, graphitizable carbon fibers derived from an organic pigment for stable high-energy batteries ⓘ Metallic lithium (Li) anodes are ideal for Li-ion batteries owing to the high specific capacity and low redox potential of Li. However, the practical applications of metallic Li anodes are hindered by dendrite formation, low Coulombic efficiencies, and safety risks. In order to mitigate these challenges, one effective strategy is to use carbon-based current collectors. This study highlights the potential of nitrogen-enriched, graphitizable carbon fibers Nitrogen-enriched, graphitizable carbon fibers (NGC), prepared by electrospinning a C.I. Pigment Red 122 solution, as lithiophilic and porous current collectors for Li-ion and Li-metal batteries. The nitrogen and oxygen contents and carbon crystallinity of the fibers are controlled by adjusting carbonization temperatures from 600 to 1500 °C. In both Li-ion and Li-sulfur batteries, NGC-T600, carbonized at 600 °C, achieves the highest specific capacity owing to abundant surface-functional groups (C=O and C–N). Conversely, in Li-metal batteries, NGC-T1000, carbonized at 1000 °C, demonstrates the most stable cycling performance with a high Coulombic efficiency under high areal current densities and larger Li deposition capacities. These findings suggest that the interplay between nitrogen-associated bonds and degree of crystallinity in carbon scaffolds influences the Li storage mechanisms, electrochemical reversibility, and kinetics of the NGC, yielding different electrochemical behaviors in Li-ion and Li-metal batteries. © 2025 Elsevier Ltd ⓘ Woo, Sujeong; Lee, Kwonyun; Park, Minsu; Choi, Wootaek; Kwon, Woong; Kim, Young Hyun; Kim, Jang-Yul; Jeong, Euigyung; Kim, Patrick Joohyun ⓘ School of Chemical Engineering and Applied Chemistry, Kyungpook National University, 80, Daehak-ro, Buk-gu Daegu, 41566, South Korea; Department of Textile System Engineering, Kyungpook National University, 80, Daehak-ro, Buk-gu Daegu, 41566, South Korea; School of Chemical Engineering and Applied Chemistry, Kyungpook National University, 80, Daehak-ro, Buk-gu Daegu, 41566, South Korea; School of Chemical Engineering and Applied Chemistry, Kyungpook National University, 80, Daehak-ro, Buk-gu Daegu, 41566, South Korea; Department of Textile System Engineering, Kyungpook National University, 80, Daehak-ro, Buk-gu Daegu, 41566, South Korea; Carbon Materials Group, Research Institute of Industrial Science & Technology, Pohang-si, Gyeongsangbuk-do, 37673, South Korea; Carbon Materials Group, Research Institute of Industrial Science & Technology, Pohang-si, Gyeongsangbuk-do, 37673, South Korea; Department of Textile System Engineering, Kyungpook National University, 80, Daehak-ro, Buk-gu Daegu, 41566, South Korea; School of Chemical Engineering and Applied Chemistry, Kyungpook National University, 80, Daehak-ro, Buk-gu Daegu, 41566, South Korea ⓘ ⓘ 59137762800; 58117724700; 57402583800; 59301545300; 57208867074; 59958315800; 55225762200; 35885596300; 57195611779 ⓘ wolfpack@knu.ac.kr; pjkim@knu.ac.kr; ⓘ Carbon ⓘ CARBON ⓘ 0008-6223 1873-3891 243 SCIE CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY ⓘ 2024 11.6 10.1 ⓘ 0 ⓘ ⓘ Carbon crystallinity; Carbon fibers; Li-metal batteries; Lithiophilicity; Organic pigment ⓘ Anodes; Carbon capture; Carbonization; Crystallinity; Efficiency; Ions; Lithium compounds; Lithium sulfur batteries; Lithium-ion batteries; Nitrogen; Organic carbon; Redox reactions; Scaffolds; Sulfur compounds; Carbon crystallinity; Cristallinity; Graphitizable carbons; Lithiophilicity; Lithium ions; Lithium metals; Lithium-metal battery; Metallic lithium; Nitrogen-enriched; Organic pigments; Carbon fibers ⓘ English Final 2025 10.1016/j.carbon.2025.120564 ⓘ 바로가기 바로가기 바로가기
페이지 이동: