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| 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 |
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| ○ | ○ | Article | Spatiotemporal neural network with attention mechanism for El Nino forecasts | To learn spatiotemporal representations and anomaly predictions from geophysical data, we propose STANet, a spatiotemporal neural network with a trainable attention mechanism, and apply it to El Nino predictions for long-lead forecasts. The STANet makes two critical architectural improvements: it learns spatial features globally by expanding the network's receptive field and encodes long-term sequential features with visual attention using a stateful long-short term memory network. The STANet conducts multitask learning of Nino3.4 index prediction and calendar month classification for predicted indices. In a comparison of the proposed STANet performance with the state-of-the-art model, the accuracy of the 12-month forecast lead correlation coefficient was improved by 5.8% and 13% for Nino3.4 index prediction and corresponding temporal classification, respectively. Furthermore, the spatially attentive regions for the strong El Nino events displayed spatial relationships consistent with the revealed precursor for El Nino occurrence, indicating that the proposed STANet provides good understanding of the spatiotemporal behavior of global sea surface temperature and oceanic heat content for El Nino evolution. | Kim, Jinah; Kwon, Minho; Kim, Sung-Dae; Kug, Jong-Seong; Ryu, Joon-Gyu; Kim, Jaeil | Korea Inst Ocean Sci & Technol, Coastal Disaster Res Ctr, Pusan 49111, South Korea; Pohang Univ Sci & Technol, Div Environm Sci & Engn, Pohang 37673, South Korea; Elect & Telecommun Res Inst, Satellite Wide Area Infra Res Sect, Daejeon 34129, South Korea; Kyungpook Natl Univ, Sch Comp Sci & Engn, Daegu 41566, South Korea | ; KUG, JONG-SEONG/A-8053-2013; Kim, Jinsoo/AAR-7886-2021 | 55720345100; 34972911900; 59784777800; 6506276837; 7401868766; 57211615348 | jaeilkim@knu.ac.kr; | SCIENTIFIC REPORTS | SCI REP-UK | 2045-2322 | 12 | 1 | SCIE | MULTIDISCIPLINARY SCIENCES | 2022 | 4.6 | 29.5 | 1.28 | 2025-06-25 | 33 | 18 | OCEAN RECHARGE PARADIGM; ENSO; OSCILLATION; PREDICTION; PRECIPITATION; TEMPERATURE; ATLANTIC | El Nino-Southern Oscillation; Forecasting; Learning; Neural Networks, Computer; article; attention; correlation coefficient; heat; learning; long short term memory network; prediction; receptive field; sea surface temperature; visual attention; El Nino; forecasting | English | 2022 | 2022-05-03 | 10.1038/s41598-022-10839-z | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Species Diversity of Anopheles Mosquitoes and Plasmodium vivax Infection Rates, Gyeonggi Province, Republic of Korea During 2020 | There are currently >300 malaria cases reported annually in the Republic of Korea (ROK), with most cases attributed to exposure in northern Gangwon and Gyeonggi provinces near the demilitarized zone (DMZ). The species diversity and malaria infection rate were determined for a sample of Anopheles mosquitoes collected from May to early November 2020 for six sites in a malaria high-risk area in/near the DMZ and two malaria low-risk areas in southern Gyeonggi province using Mosquito Magnet traps in the ROK. A total of 1864 Anopheles spp. were identified to species by PCR. Overall, An. kleini (31.4%, 510/1622) was the most frequently species assayed, followed by An. pullus (25.5%, 413/1622), An. sineroides (23.9%, 387/1622), and An. sinensis (10.2%, 165/1622), while the other four species only accunted for 9.1% (147/1622) collected in/near the DMZ. Only three species, An. pullus, An. sinensis, and An. sineroides were collected at Humphreys US Army Garrison (USAG) (235 individuals), while only An. sinensis was collected at Yongsan USAG (7 individuals). A total of 36 Anopheles specimens belonging to five species collected in/near the DMZ were positive for Plasmodium vivax by PCR. Anopheles kleini (9) was the most frequent species positive for P. vivax, followed by An. belenrae (8), An. pullus (8), An. sinensis (5), An. sineroides (5), and a member of the Anopheles Lindesayi Complex in the ROK (1). This is the first report of P. vivax in a member of the An. Lindesayi Complex in the ROK. These findings can assist in guiding future malaria vector management in the ROK. | Lee, So Youn; Kim, Heung Chul; Klein, Terry A.; Ryu, Jihun; Won, Min Hyeok; Choi, Jae Won; Kim, Myung Soon; Chong, Sung Tae; Lee, Si Hyeock; Kim, Young Ho; Kim, Ju Hyeon; Choi, Kwang Shik | Kyungpook Natl Univ, Coll Nat Sci, Sch Life Sci, Daegu 41566, South Korea; Kyungpook Natl Univ, Res Inst Dok Do & Ulleung Do Isl, Daegu, South Korea; Med Dept Act Korea 65th Med Brigade, Force Hlth Protect & Prevent Med, Unit 15281, APO, AP 96271 USA; U Inc, 34 Gil, Seoul 04409, South Korea; Seoul Natl Univ, Dept Agr Biotechnol, Seoul, South Korea; Kyungpook Natl Univ, Dept Entomol, Sangju, South Korea; Seoul Natl Univ, Coll Med, Dept Trop Med & Parasitol, Seoul, South Korea; Kyungpook Natl Univ, Inst Phylogen & Evolut, Daegu, South Korea | Won, Min Hyeok/GRO-0206-2022; Kim, Duk Hwan/AAC-5666-2022; Lee, Seunghwan/E-4992-2011; Lee, Sang/R-7470-2019; Ryu, Jihun/MSY-6008-2025 | 57225174719; 8847173600; 7202313728; 57210884178; 57226384585; 57377209500; 55789464100; 11840251100; 34872664900; 58516491300; 35317802600; 36602283400 | ksc@knu.ac.kr; | JOURNAL OF MEDICAL ENTOMOLOGY | J MED ENTOMOL | 0022-2585 | 1938-2928 | 59 | 5 | SCIE | ENTOMOLOGY;VETERINARY SCIENCES | 2022 | 2.1 | 29.5 | 0.64 | 2025-06-25 | 4 | 4 | Anopheles; Plasmodium vivax; Republic of Korea | HYRCANUS GROUP; NORTHERN GYEONGGI; DEMILITARIZED ZONE; VECTOR COMPETENCE; MALARIA VECTORS; CULICIDAE GROUP; DIPTERA; DYNAMICS; SINENSIS; KLEINI | Anopheles; Plasmodium vivax; Republic of Korea | Animals; Anopheles; Malaria; Malaria, Vivax; Mosquito Vectors; Plasmodium vivax; Republic of Korea; animal; Anopheles; malaria; mosquito vector; Plasmodium vivax; Plasmodium vivax malaria; South Korea | English | 2022 | 2022-09-14 | 10.1093/jme/tjac086 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Tapered catheter-based transurethral photoacoustic and ultrasonic endoscopy of the urinary system | Early diagnosis is critical for treating bladder cancer, as this cancer is very aggressive and lethal if detected too late. To address this important clinical issue, a photoacoustic tomography (PAT)-based transabdominal imaging approach was suggested in previous reports, in which its in vivo feasibility was also demonstrated based on a small animal model. However, successful translation of this approach to real clinical settings would be challenging because the human bladder is located at a depth that far exceeds the typical penetration depth of PAT (similar to 3 cm for in vivo cases). In this study, we developed a tapered catheter-based, transurethral photoacoustic and ultrasonic endoscopic probe with a 2.8 mm outer diameter to investigate whether the well-known benefits of PAT can be harnessed to resolve unmet urological issues, including early diagnosis of bladder cancer. To demonstrate the in vivo imaging capability of the proposed imaging probe, we performed a rabbit model-based urinary system imaging experiment and acquired a 3D microvasculature map distributed in the wall of the urinary system, which is a first in PAT, to the best of our knowledge. We believe that the results strongly support the use of this transurethral imaging approach as a feasible strategy for addressing urological diagnosis issues. (C) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement | Kim, KiSik; Youm, Jin Young; Lee, Eun Hye; Gulenko, Oleksandra; Kim, Minjae; Yoon, Bo Hyun; Jeon, Minji; Kim, Tae Hyo; Ha, Yun-Sok; Yang, Joon-Mo | Ulsan Natl Inst Sci & Technol UNIST, Ctr Photoacoust Med Instruments, Dept Biomed Engn, Ulsan 44919, South Korea; Kyungpook Natl Univ, Chilgok Hosp, Sch Med, Dept Urol, Daegu 41944, South Korea; Dong A Univ, Coll Med, Dept Urol, Busan 49201, South Korea | Jeon, Minji/HTN-4703-2023; Yang, Joon-Mo/X-5629-2018; Lee, Yun-Soo/AAA-7364-2022 | 57323584400; 22952495800; 57189661699; 57216896630; 57323706700; 57218931150; 59026085100; 34770790400; 35487226400; 58291438400 | dockim0927@hanmail.ne;yunsokha@gmail.com;jmyang@unist.ac.kr; | OPTICS EXPRESS | OPT EXPRESS | 1094-4087 | 30 | 15 | SCIE | OPTICS | 2022 | 3.8 | 29.5 | 0.72 | 2025-06-25 | 5 | 8 | OPTICAL COHERENCE TOMOGRAPHY; BLADDER-CANCER; PROSTATE; PROBE; CYSTOSCOPY; DESIGN | Animals; Catheters; Endosonography; Humans; Photoacoustic Techniques; Rabbits; Urinary Bladder Neoplasms; Diseases; Endoscopy; Photoacoustic effect; Probes; Bladder cancers; Clinical issues; Clinical settings; Early diagnosis; In-vivo; Outer diameters; Photoacoustic tomography; Small animal model; Transurethral; Urinary system; animal; bladder tumor; catheter; diagnostic imaging; endoscopic ultrasonography; human; Leporidae; photoacoustics; procedures; Catheters | English | 2022 | 2022-07-18 | 10.1364/oe.461855 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | The comparisons of expression pattern reveal molecular regulation of fruit metabolites in S. nigrum and S. lycopersicum | Solanum nigrum, known as black nightshade, is a medicinal plant that contains many beneficial metabolites in its fruit. The molecular mechanisms underlying the synthesis of these metabolites remain uninvestigated due to limited genetic information. Here, we identified 47,470 unigenes of S. nigrum from three different tissues by de novo transcriptome assembly, and 78.4% of these genes were functionally annotated. Moreover, gene ontology (GO) analysis using 18,860 differentially expressed genes (DEGs) revealed tissue-specific gene expression regulation. We compared gene expression patterns between S. nigrum and tomato (S. lycopersicum) in three tissue types. The expression patterns of carotenoid biosynthetic genes were different between the two species. Comparison of the expression patterns of flavonoid biosynthetic genes showed that 9 out of 14 enzyme-coding genes were highly upregulated in the fruit of S. nigrum. Using CRISPR-Cas9-mediated gene editing, we knocked out the R2R3-MYB transcription factor SnAN2 gene, an ortholog of S. lycopersicum ANTHOCYANIN 2. The mutants showed yellow/green fruits, suggesting that SnAN2 plays a major role in anthocyanin synthesis in S. nigrum. This study revealed the connection between gene expression regulation and corresponding phenotypic differences through comparative analysis between two closely related species and provided genetic resources for S. nigrum. | Heo, Jung; Bang, Woo Young; Jeong, Jae Cheol; Park, Sung-Chul; Lee, Je Min; Choi, Sungho; Lee, Byounghee; Lee, Young Koung; Kim, Keunhwa; Park, Soon Ju | Wonkwang Univ, Div Biol Sci, Iksan 54538, South Korea; Wonkwang Univ, Res Inst Basic Sci, Iksan 54538, South Korea; Natl Inst Biol Resources, Biol & Genet Resources Assessment Div, Incheon 22689, South Korea; Korea Res Inst Biosci & Biotechnol KRIBB, Biol Resource Ctr, Jeongeup 56212, South Korea; Kyungpook Natl Univ, Dept Hort Sci, Daegu 41566, South Korea; Korea Inst Fus Energy, Inst Plasma Technol, 37 Dongjangsan Ro, Gunsan Si 54004, Jeollabuk Do, South Korea | Park, Sung Chul/AGO-1773-2022; Lee, Je/AAE-7496-2020; Park, Soon Ju/JBI-7640-2023 | 57209830584; 7004161575; 7402045825; 57203275926; 8885729900; 57543998800; 24477872800; 57138625900; 35725656100; 9245081200 | gonna04@wku.ac.kr;sjpark75@wku.ac.kr; | SCIENTIFIC REPORTS | SCI REP-UK | 2045-2322 | 12 | 1 | SCIE | MULTIDISCIPLINARY SCIENCES | 2022 | 4.6 | 29.5 | 0.5 | 2025-06-25 | 9 | 7 | ANTHOCYANIN ACCUMULATION; CAROTENOID BIOSYNTHESIS; SOLANUM-NIGRUM; KNOX GENES; TOMATO; CLONING; AUXIN; LANCEOLATE; GROWTH; PATHWAY | Anthocyanins; Fruit; Gene Expression Profiling; Gene Expression Regulation, Plant; Lycopersicon esculentum; Plant Proteins; Solanum nigrum; Transcription Factors; Transcriptome; anthocyanin; plant protein; transcription factor; transcriptome; fruit; gene expression profiling; gene expression regulation; genetics; metabolism; Solanum nigrum; tomato | English | 2022 | 2022-03-23 | 10.1038/s41598-022-09032-z | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | The complete mitochondrial genome of the woodwasp Euxiphydria potanini (Hymenoptera, Xiphydrioidea) and phylogenetic implications for symphytans | The long-necked woodwasp superfamily Xiphydrioidea belongs to the suborder Symphyta (Hymenoptera). Here we newly characterize the complete mitochondrial genome of the South Korean Euxiphydria potanini (Xiphydriidae) using next-generation sequencing: 16,500 bp long with 84.27% A + T content and 37 typical mitochondrial genes including those encoding 13 PCGs, 2 rRNAs, 22 tRNAs, and one A + T rich region. We compare the patterns of symphytan mitochondrial gene arrangement with those of an ancestral insect form and found some synapomorphic rearrangements in phylogenetic context. We use a variety of nucleotide and amino acid sequence alignments (thirteen mtPCGs and/or eight nDNAs) alongside step-by-step exclusions of long-branched taxa to elucidate the phylogenetic position of Xiphydrioidea and phylogenetic relationships among the seven symphytan superfamilies, except for Anaxyeloidea of which no mtgenome was available. The monophyly of symphytan superfamilies (with weak support for Pamphilioidea), sister-group relationship of Xiphydrioidea and Cephoidea, and Symphyta being paraphyletic to Apocrita, etc. are consistently supported by maximum likelihood and Bayesian inference trees. We also discuss the problematic phylogenetic positions of Orussoidea and Siricoidea and propose a hypothetical scenario of morphological character transition during hymenopteran evolution based on morphological key characteristics, such as the cenchrus and the wasp-waist. | Park, Bia; Hwang, Ui Wook | Kyungpook Natl Univ, Dept Biol, Teachers Coll, Daegu 41566, South Korea; Kyungpook Natl Univ, Inst Phylogen & Evolut, Daegu 41566, South Korea; Kyungpook Natl Univ, Sch Ind Technol Adv, Daegu 41566, South Korea; Kyungpook Natl Univ, Inst Korean Herb Bio Convergence Promot, Daegu 41566, South Korea; Phyl Inc, Daegu 41910, South Korea | 57191834404; 35074015800 | uwhwang1@gmail.com; | SCIENTIFIC REPORTS | SCI REP-UK | 2045-2322 | 12 | 1 | SCIE | MULTIDISCIPLINARY SCIENCES | 2022 | 4.6 | 29.5 | 0.21 | 2025-06-25 | 3 | 3 | TRANSFER-RNA GENES; EVOLUTIONARY HISTORY; BASAL LINEAGES; INSECTA; CLASSIFICATION; ORGANIZATION; SEQUENCE; CHOICE; TOOL; DNA | Animals; Bayes Theorem; Genome, Mitochondrial; Hymenoptera; Nucleotides; Phylogeny; Wasps; nucleotide; animal; Bayes theorem; genetics; Hymenoptera; mitochondrial genome; phylogeny; wasp | English | 2022 | 2022-10-21 | 10.1038/s41598-022-21457-0 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||||
| ○ | ○ | Article | The function of a conidia specific transcription factor CsgA in Aspergillus nidulans | Aspergillus spp. mainly reproduce asexually via asexual spores called conidia. In this study, we identified CsgA, a conidia-specific Zn(2)Cys(6) transcription factor containing the GAL4-like zinc-finger domain, and characterized the roles of CsgA in the model organism Aspergillus nidulans. In A. nidulans, the Delta csgA strain produced abnormal conidiophores and exhibited increased conidial production. The deletion of csgA resulted in impaired production of sexual fruiting bodies (cleistothecia) and lower mutA expression levels. Overexpression of csgA led to decreased conidia production but increased cleistothecia production, suggesting that CsgA is essential for proper asexual and sexual development in A. nidulans. In conidia, the deletion of csgA resulted in increased trehalose content, higher spore viability, and increased tolerance to thermal and oxidative stresses. Transcriptomic analysis revealed that the loss of csgA affects the expression of genes related to conidia germination, DNA repair, and secondary metabolite biosynthesis. Further analysis revealed that the Delta csgA strain exhibited delayed conidial germination and abnormal germ tube length. Additionally, the production of sterigmatocystin increased in the Delta csgA conidia compared to that in the controls. Overall, these results suggest that CsgA is crucial for proper fungal development, spore viability, conidial germination, and sterigmatocystin production in A. nidulans. | Cho, He-Jin; Park, Hee-Soo | Kyungpook Natl Univ, Sch Food Sci & Biotechnol, 80 Daehak Ro, Daegu 41566, South Korea; Kyungpook Natl Univ, Dept Integrat Biol, Daegu 41566, South Korea | Park, Hee-Soo/AAC-6422-2019 | 57214721558; 15751448400 | phsoo97@knu.ac.kr; | SCIENTIFIC REPORTS | SCI REP-UK | 2045-2322 | 12 | 1 | SCIE | MULTIDISCIPLINARY SCIENCES | 2022 | 4.6 | 29.5 | 0.43 | 2025-06-25 | 6 | 6 | ASEXUAL SPORULATION; SEXUAL DEVELOPMENT; PROTEIN; GENE; GERMINATION; GROWTH; REQUIRES; CAMP; REGULATORS; TREHALOSE | Aspergillus nidulans; Fungal Proteins; Gene Expression Regulation, Fungal; Spores, Fungal; Sterigmatocystin; Transcription Factors; Trehalose; Zinc; fungal protein; sterigmatocystin; transcription factor; trehalose; zinc; Aspergillus nidulans; fungus spore; gene expression regulation; genetics; metabolism | English | 2022 | 2022-09-16 | 10.1038/s41598-022-19749-6 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | The influence of CeF3 on radiation hardness and luminescence properties of Gd2O3-B2O3 glass scintillator | The effect of CeF3 concentration and gamma-irradiation on the physical, optical and luminescence properties of Gd2O3-B2O3-CeF3 glasses were studied in this work. Before irradiation, the addition of CeF3 in glass degraded the network connectivity observed from FTIR and possibly created the non-bridging oxygen (NBO) in glass structure. This NBO caused the reduction of Ce3+/Ce4+ ratio in XANES, the red-shift in transmission spectra and the raise of refractive index with addition of -CeF3 content. Such red-shift also was influenced by 4f-5d transition of Ce3+ dopant. This ion generated the strongest photoluminescence (PL) and radioluminescence (RL) in 0.3 mol% CeF3-doped glass with nanoseconds decay time. The irradiation with.-rays damaged the glass structure, broke the chemical bonds, and created color center in the glass network. The non-bridging oxygen hole center (NBOHC), that absorbed photons in the visible light region, caused the darkening, color change and increment of refractive index. These irradiation effects on glass were mitigated by the addition of -CeF3 that the electron donation of Ce3+ decreased the number of NBOHC. The Ce3+/Ce4+ ratio in most glasses after irradiation then reduced compared to them before irradiation, resulting to the decrease in PL and RL intensity. Our results confirm that CeF3 can enhance the radiation hardness of glass and the 0.3 mol% CeF3-doped glass is a promising glass scintillator. | Kaewnuam, E.; Wantana, N.; Ruangtaweep, Y.; Cadatal-Raduban, M.; Yamanoi, K.; Kim, H. J.; Kidkhunthod, P.; Kaewkhao, J. | Muban Chombueng Rajabhat Univ, Fac Sci & Technol, Phys Program, Ratchaburi 70150, Thailand; Nakhon Pathom Rajabhat Univ, Fac Sci & Technol, Phys Program, Nakhon Pathom 73000, Thailand; Nakhon Pathom Rajabhat Univ, Ctr Excellence Glass Technol & Mat Sci CEGM, Nakhon Pathom 73000, Thailand; Massey Univ, Sch Nat Sci, Ctr Theoret Chem & Phys, Auckland 0632, New Zealand; Osaka Univ, Inst Laser Engn, 2-6 Yamadaoka, Suita, Osaka 5650871, Japan; Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea; Publ Org, Synchrotron Light Res Inst, 111 Univ Ave, Nakhon Ratchasama 30000, Thailand | ; Kim, Hong Joo/AAE-1178-2022; Yamanoi, Kohei/B-2150-2013; Kaewnaum, Eakgapon/JWO-6262-2024; Cadatal-Raduban, Marilou/I-2513-2018 | 56267295300; 56267058700; 37108588700; 26654667100; 35243839300; 59051568100; 35272197100; 23974520300 | jakrapong@webmail.npru.ac.th; | SCIENTIFIC REPORTS | SCI REP-UK | 2045-2322 | 12 | 1 | SCIE | MULTIDISCIPLINARY SCIENCES | 2022 | 4.6 | 29.5 | 1.42 | 2025-06-25 | 22 | 24 | GAMMA-RAY IRRADIATION; OPTICAL-PROPERTIES; BORATE GLASSES; SHIELDING PROPERTIES; OXIDE GLASSES; CE3+; CERIUM; RESONANCE; GD3+; B2O3 | English | 2022 | 2022-06-30 | 10.1038/s41598-022-14833-3 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||||
| ○ | ○ | Article | The role of the right prefrontal cortex in the retrieval of weak representations | Although recent studies have shown the importance of control in creative problem solving, the neural mechanisms of control processes engaged in retrieval of weak representations, which is closely linked to creative problem solving, remain unclear. The current study aimed to examine the neural mechanisms associated with retrieval of weak representations using functional magnetic resonance imaging and their potential relationships with creativity task performance. For this purpose, participants performed an experimental task that enabled us to directly compare between retrieval of previously unattended-and-weak representations and attended-and-strong representations. Imaging results indicated that the right anterior dorsolateral prefrontal cortex (aDLPFC) was selectively engaged in retrieval of weak representations. Moreover, the right aDLPFC activations were positively correlated with individuals' creativity task performance but independent of attention-demanding task performance. We therefore suggest that the right aDLPFC plays a key role in retrieval of weak representations and may support creative problem solving. | Yi, Kyongmyon; Heo, Juyeon; Hong, Jiyun; Kim, Chobok | Kyungpook Natl Univ, Dept Psychol, Daegu 41566, South Korea | 57217066606; 57487777200; 57487118400; 36445948100 | ckim@knu.ac.kr; | SCIENTIFIC REPORTS | SCI REP-UK | 2045-2322 | 12 | 1 | SCIE | MULTIDISCIPLINARY SCIENCES | 2022 | 4.6 | 29.5 | 0.57 | 2025-06-25 | 5 | 8 | WORKING-MEMORY; DIVERGENT THINKING; SEMANTIC DISTANCE; CREATIVE PERFORMANCE; FRONTAL-CORTEX; TASK; FMRI; TIME; INFORMATION; INVOLVEMENT | Attention; Brain Mapping; Creativity; Humans; Magnetic Resonance Imaging; Prefrontal Cortex; Problem Solving; attention; brain mapping; creativity; diagnostic imaging; human; nuclear magnetic resonance imaging; prefrontal cortex; problem solving; procedures | English | 2022 | 2022-03-16 | 10.1038/s41598-022-08493-6 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||||
| ○ | ○ | Article | Three-dimensional visualization of cerebral blood vessels and neural changes in thick ischemic rat brain slices using tissue clearing | Blood vessels are three-dimensional (3D) in structure and precisely connected. Conventional histological methods are unsuitable for their analysis because of the destruction of functionally important topological 3D vascular structures. Tissue optical clearing techniques enable extensive volume imaging and data analysis without destroying tissue. This study therefore applied a tissue clearing technique to acquire high-resolution 3D images of rat brain vasculature using light-sheet and confocal microscopies. Rats underwent middle cerebral artery occlusion for 45 min followed by 24 h reperfusion with lectin injected directly into the heart for vascular staining. For acquiring 3D images of rat brain vasculature, 3-mm-thick brain slices were reconstructed using tissue clearing and light-sheet microscopy. Subsequently, after 3D rendering, the fitting of blood vessels to a filament model was used for analysis. The results revealed a significant reduction in vessel diameter and density in the ischemic region compared to those in contralesional non-ischemic regions. Immunostaining of 0.5-mm-thick brain slices revealed considerable neuronal loss and increased astrocyte fluorescence intensity in the ipsilateral region. Thus, these methods can provide more accurate data by broadening the scope of the analyzed regions of interest for examining the 3D cerebrovascular system and neuronal changes occurring in various brain disorders. | Lee, Eun-Joo; Hong, Sung-Kuk; Choi, Dong-Hwa; Gum, Sang-Il; Hwang, Mee Yul; Kim, Dong Sun; Oh, Ji Won; Lee, Eun-Shil | Binaree Inc, STE 608 Daegu Techbiz Ctr,Techno Gongwon Ro 16, Daegu 43017, South Korea; Kyungpook Natl Univ, Sch Med, Dept Anat, Gukchaebosang Ro 680, Daegu 41944, South Korea; Gyeonggido Business & Sci Accelerator, Bioctr, Gwanggyo Ro 107, Suwon 16229, South Korea; Yonsei Univ, Dept Anat, Coll Med, Yonsei Ro 50, Seoul 03722, South Korea; Yonsei Univ, Grad Sch Med Sci, Brain Korea 21 Project, Coll Med, Yonsei Ro 50, Seoul 03722, South Korea | Kim, Dae/AAJ-7518-2021; Oh, Ji/AAZ-3153-2020; Kim, Gou/AAI-1109-2020; Lee, Seung/AAI-1191-2020 | 57899109700; 57899203100; 56165684100; 57899021400; 57899250100; 57125070500; 36093206200; 25925922900 | G1@yuhs.ac;leees82@naver.com; | SCIENTIFIC REPORTS | SCI REP-UK | 2045-2322 | 12 | 1 | SCIE | MULTIDISCIPLINARY SCIENCES | 2022 | 4.6 | 29.5 | 0.21 | 2025-06-25 | 4 | 3 | REACTIVE ASTROCYTES; ARTERY OCCLUSION; ANIMAL-MODELS; STROKE | Animals; Brain; Imaging, Three-Dimensional; Infarction, Middle Cerebral Artery; Ischemia; Lectins; Microscopy, Confocal; Rats; lectin; animal; brain; cerebral artery disease; confocal microscopy; diagnostic imaging; ischemia; pathology; procedures; rat; three-dimensional imaging | English | 2022 | 2022-09-23 | 10.1038/s41598-022-19575-w | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Trueness of intraoral scanners according to subgingival depth of abutment for fixed prosthesis | This study aimed to compare the trueness of intraoral scanners (IOSs) according to the subgingival finish line depth of tooth preparation for fixed prostheses. The prepared maxillary right first molar was fabricated by using ceramic material. A computer-aided design (CAD) reference model (CRM) of the abutment was obtained by using a contact scanner. The subgingival finish line was located according to the depth at 0-mm, 0.25-mm, 0.5-mm, 0.75-mm, and 1-mm. CAD test models (CTMs) were obtained by using 2 IOSs (i500 and CS3600). CRM and CTM were superimposed and analyzed (Geomagic control X). The one-way analysis of variance (ANOVA) was used to compare the trueness according to the subgingival finish line depth. The paired t test was used to compare the trueness of IOSs with and without gingival retraction (alpha=.05). When the gingival displacement code was not used, it was observed that the trueness of both IOSs decreased significantly as the depth of the subgingival finish line increased (P<0.001). When the subgingival finish line was positioned deeper than 0.5-mm, the trueness of both IOSs exceeded 100 mu m in the marginal region. When the gingival displacement cord was used, the trueness of both IOSs did not exceed 100 mu m regardless of the subgingival finish line depth. When gingival cord was used, it showed significantly higher trueness than when not used (P<0.001). When the gingival displacement cord was not used, the trueness of IOSs decreased as the subgingival finish line depth increased. But the use of the gingival displacement cord improved the scanning trueness by 90%. Thus, it is necessary to use the gingival displacement cord according to the clinical situation to improve scan trueness at the subgingival finish line. | Son, Young-Tak; Son, KeunBaDa; Lee, Kyu-Bok | Kyungpook Natl Univ, Grad Sch, Dept Dent Sci, Daegu, South Korea; Kyungpook Natl Univ, Adv Dent Device Dev Inst, Daegu, South Korea; Kyungpook Natl Univ, Sch Dent, Adv Dent Device Dev Inst, Dept Prosthodont, 2177 Dalgubuldaero, Daegu 41940, South Korea | Son, Keunbada/AAG-8089-2019; SON, Keunbada/AAG-8089-2019 | 57219111205; 57202916520; 15925571200 | kblee@knu.ac.kr; | SCIENTIFIC REPORTS | SCI REP-UK | 2045-2322 | 12 | 1 | SCIE | MULTIDISCIPLINARY SCIENCES | 2022 | 4.6 | 29.5 | 0.71 | 2025-06-25 | 7 | 11 | CONVENTIONAL IMPRESSIONS; CROWN MARGINS; ACCURACY; PROSTHODONTICS | Analysis of Variance; Artificial Limbs; Computer-Aided Design; Cone-Rod Dystrophies; Gingiva; Humans; Prosthesis Implantation; analysis of variance; computer aided design; cone rod dystrophy; gingiva; human; limb prosthesis; prosthesis implantation | English | 2022 | 2022-12-01 | 10.1038/s41598-022-23498-x | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Ultrasound stimulation improves inflammatory resolution, neuroprotection, and functional recovery after spinal cord injury | Spinal cord injury (SCI) is associated with limited functional recovery. Despite advances in neuroscience, realistic therapeutic treatments for SCI remain unavailable. In this study, the effects of non-invasive ultrasound (US) treatment on behavior and inflammatory responses were evaluated in a rat model of SCI. Adult female Sprague-Dawley rats were subjected to spinal cord contusion injury. Two different US parameters (SCIU5: 5% and SCIU40: 40% duty cycle) were applied, and their effects on behavioral recovery after SCI were quantified. Tissue and neuronal responses were detected. Immunofluorescence was used to detect inflammatory markers. In the rat model of SCI, motor function was more effectively restored, and the lesion cavity area was smaller in the SCIU5 group. Furthermore, the SCIU5 protocol elicited an anti-inflammatory response at the injury site by reducing degenerative FJC-labeled neurons, macrophage/microglia activation, and infiltration. Thus, the lesion area decreased, and tissue density increased. Meanwhile, the SCIU40 protocol did not improve motor function or induce an anti-inflammatory response at the injury site. The SCIU5 protocol effectively accelerated the rate of improved exercise performance in the rat model while reducing inflammation. Accordingly, appropriate US stimulation may represent a promising treatment modality for SCI with beneficial anti-inflammatory effects. | Hong, Yu-ri; Lee, Eun-hee; Park, Ki-su; Han, Mun; Kim, Kyoung-Tae; Park, Juyoung | Daegu Gyeongbuk Med Innovat Fdn, Med Device Dev Ctr, Daegu 41061, South Korea; Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Sch Med, Dept Neurosurg, 130 Dongdeok Ro, Daegu 41944, South Korea; Gachon Univ, Dept High Tech Med Device, Seongnam 1342, South Korea; SonoTx, Seongnam, South Korea | 57481287100; 57212665883; 55932363100; 55671172700; 57201369790; 55329181100 | nskimkt7@gmail.com;opedoors@gmail.com; | SCIENTIFIC REPORTS | SCI REP-UK | 2045-2322 | 12 | 1 | SCIE | MULTIDISCIPLINARY SCIENCES | 2022 | 4.6 | 29.5 | 1.07 | 2025-06-25 | 13 | 15 | INTENSITY PULSED ULTRASOUND; THERAPEUTIC ULTRASOUND; SAFETY; REGENERATION; PLASTICITY; REPAIR; PHASE; CELLS; WAVES; DRUG | Animals; Anti-Inflammatory Agents; Female; Neuroprotection; Rats; Rats, Sprague-Dawley; Recovery of Function; Spinal Cord; Spinal Cord Injuries; antiinflammatory agent; animal; convalescence; female; neuroprotection; pathology; physiology; rat; spinal cord; spinal cord injury; Sprague Dawley rat | English | 2022 | 2022-03-07 | 10.1038/s41598-022-07114-6 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||||
| ○ | ○ | Article | Adaptive-Sliding-Window-Based Detection for Noncooperative Spectrum Sensing in Radar Band | Recently, radar frequency bands have attracted attention as candidates for cognitive radio owing to their wide bandwidth but low utilization. When spectrum sensing is performed in radar bands, sliding-window-based detection can be used to exploit the sparsity of the radar pulse signal in the time domain and obtain a sufficient number of samples. The detection performance and sensing time depend on the configuration of the windows. The detection performance was optimized when the window size was equal to the pulsewidth. However, the pulsewidth is generally unknown. Another way to increase the detection performance is to obtain more samples of the window. However, this causes large computation overhead owing to the sparsity of radar signals. Therefore, we propose an adaptive-sliding-window-based detection scheme to address these problems. First, the window is adaptively applied. Second, a pulsewidth estimation algorithm is proposed to approximate the window size to the pulsewidth for each detection. Additionally, we demonstrate the performance improvement of the proposed scheme and evaluate the estimation error of the proposed algorithm via simulations. | Noh, Jiyoon; Kwon, Yohan; Lee, Juhyung; Baek, Hoki; Lim, Jaesung | Ajou Univ, Dept Mil Digital Convergence, Suwon 16499, South Korea; Kyungpook Natl Univ, Sch Comp Sci & Engn, Daegu 41566, South Korea | ; Baek, Hoki/T-5233-2019 | 57226878972; 57222575679; 57217079238; 35112685500; 15062934300 | shwldbs2@ajou.ac.kr;dygks8989@ajou.ac.kr;dokju@ajou.ac.kr;neloyou@knu.ac.kr;jaslim@ajou.ac.kr; | IEEE SYSTEMS JOURNAL | IEEE SYST J | 1932-8184 | 1937-9234 | 16 | 3 | SCIE | COMPUTER SCIENCE, INFORMATION SYSTEMS;ENGINEERING, ELECTRICAL & ELECTRONIC;OPERATIONS RESEARCH & MANAGEMENT SCIENCE;TELECOMMUNICATIONS | 2022 | 4.4 | 29.7 | 0.31 | 2025-06-25 | 2 | 4 | Sensors; Radar; Estimation; Signal to noise ratio; Radar detection; Switches; Radar antennas; Cognitive radio (CR); radar; sliding window; spectrum sensing | Cognitive radio (CR); radar; sliding window; spectrum sensing | Radar antennas; Radar signal processing; Signal to noise ratio; Tracking radar; Adaptive sliding windows; Cognitive radio; Detection performance; Pulsewidths; Radar bands; Radar detection; Radars antennas; Sliding Window; Sliding window-based; Spectrum sensing; Cognitive radio | English | 2022 | 2022-09 | 10.1109/jsyst.2021.3099349 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Analog synaptic behavior of mobile ion source-limited electrochemical RAM using CuOx oxide electrode for deep learning accelerator | We demonstrate the synaptic characteristics of analogously modulated channel currents in Cu-ion-actuated electrochemical RAM (ECRAM) based on an HfOx electrolyte and a WOx channel. Uncontrolled synaptic response is found as a function of the gate pulse when a Cu-rich gate electrode delivers mobile ions, presumably due to many ions injected from the infinite ion reservoir. As a result, we propose a CuOx oxide electrode to limit ion sources, which is indirectly validated by a physical examination of the degree of chemical bonding between Cu and oxygen, thereby boosting gate controllability over the channel. In addition, the HfOx electrolyte needs to be designed to facilitate the adequate migration of Cu ions, considering thickness and film quality. Using material stack engineering, the channel current of optimized CuOx/HfOx/WOx ECRAM can be steadily tuned via repeated identical gate pulses. The channel current and its change are proportional to the device area and the amount of migrated ions relevant to the gate pulse conditions, respectively. The homogeneous flow of ions across the entire area can, thus, be used to explain the obtained analog switching. The gate-controllable synaptic behavior of the ECRAM accelerates deep neural network training based on backpropagation algorithms. An improved pattern recognition accuracy of '88% for handwritten digits is achieved by linearly tuned multiple current states with more than 100 pulses and asymmetric gate voltage conditions in a three-layer neural network validated in simulation. Published under an exclusive license by AIP Publishing. | Kang, Heebum; Kim, Hyun Wook; Hong, Eun Ryeong; Woo, Jiyong | Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, Sch Elect Engn, Daegu 41566, South Korea | 57232405900; 57557016000; 57556070800; 53985749100 | jiyong.woo@knu.ac.kr; | APPLIED PHYSICS LETTERS | APPL PHYS LETT | 0003-6951 | 1077-3118 | 120 | 12 | SCIE | PHYSICS, APPLIED | 2022 | 4 | 29.7 | 1.46 | 2025-06-25 | 12 | 12 | Character recognition; Chemical bonds; Copper; Deep neural networks; Electrochemical electrodes; Electrolytes; Hafnium compounds; Heavy ions; Ion sources; Multilayer neural networks; Refractory metal compounds; Channel currents; Chemical bondings; Cu ions; Electrochemicals; Gate electrodes; Gate pulse; Mobile ions; Modulated channels; Oxide electrodes; Synaptic response; Network layers | English | 2022 | 2022-03-21 | 10.1063/5.0086164 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||||
| ○ | ○ | Article | Calibration of the Flow Curve Up to Large Strain Range by Incremental Sheet Forming Coupled with FEM Simulation | Conventionally, a stress-strain curve for sheet materials is defined by the uniaxial tensile test; however, it is limited by the necking phenomena. The stress-strain curve in the post-necking range is determined using common hardening equations, such as the Swift or Voce equation. Nevertheless, the accuracy of this flow curve in the extrapolation range is questionable. In this study, the inverse method using incremental sheet forming coupled with FEM simulation was used to calibrate the stress-strain curve up to a large strain range. In the incremental sheet forming experiment, the forming force was monitored in the whole process until fracture. Then, FEM simulation by ABAQUS/Explicit was performed using the incremental stress-strain curve, accompanied by Hill's 1948 yield behavior. The incremental stress-strain curve was calculated using the beta parameter, which was systematically assigned to adjust the trial stress at each strain increment of the FEM process. The correct incremental stress-strain curve was determined when the force prediction was in good agreement with the experiment. | Kim, Young-Suk; Pham-Quoc Tuan; Xiao, Xiao; Kim, Jin-jae | Kyungpook Natl Univ, Sch Mech Engn, Daegu 41566, South Korea; Ton Duc Thang Univ, Inst Computat Sci, Div Computat Math & Engn, Ho Chi Minh City 72900, Vietnam; Ton Duc Thang Univ, Fac Civil Engn, Ho Chi Minh City 72900, Vietnam; Kyungpook Natl Univ, Grad Sch, Daegu 41566, South Korea | ; Kim, Sang-Hoon/AAA-2248-2020; Pham, Quoc Tuan/AAH-8010-2019; Pham, Tuan/AAH-8010-2019 | 36065820800; 57191753992; 57195394085; 57209555877 | caekim@knu.ac.kr;phamquoctuan@tdtu.edu.vn;xiaoye012512@knu.ac.kr;jinjaekim@knu.ac.kr; | METALS | METALS-BASEL | 2075-4701 | 12 | 2 | SCIE | MATERIALS SCIENCE, MULTIDISCIPLINARY;METALLURGY & METALLURGICAL ENGINEERING | 2022 | 2.9 | 29.7 | 0 | 2025-06-25 | 0 | 0 | flow curve; Kim-Tuan hardening equation; finite element simulation; incremental sheet forming | LIMIT CURVE; IDENTIFICATION; FRACTURE; PREDICTION; BEHAVIOR; MECHANISM; FAILURE; METALS | Finite element simulation; Flow curve; Incremental sheet forming; Kim–Tuan hardening equation | English | 2022 | 2022-02 | 10.3390/met12020252 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Conductive SnO2-x thin films deposited by thermal ALD with H2O reactant | In this study, SnO2-x films were deposited by a thermal atomic layer deposition (ALD) method with H2O as a reactant. The electrical property of the films was assessed with the intention of applying them as a channel for a back-end-of-line (BEOL) compatible transistor. Under the thermal budget constraint (< 450 degrees C) required for a BEOL transistor, the effect of ALD process parameters and post-annealing conditions on the carrier concentration and mobility of the films was investigated. While the as-deposited films were amorphous, more distinctive recrystallization could be observed with the deposition temperature of 200 degrees C combined with the annealing ambient of N-2. As a result, the mobility of 21.55 cm(2)/Vs and 3.3 x 10(19) cm(-3) carrier concentration were achieved with an 18-nm thick n-type SnO2-x film. However, it was also observed the mobility of the N-2-annealed SnO2-x decreased by-50% of an initial value upon exposure to humidity for 2-3 days. 5-Nm Al2O3 on SnO2-x as a capping layer could prevent the degradation, suggesting the presence of a more conductive path near the surface. This work demonstrates SnO2-x deposited by a thermal ALD can exhibit an excellent electrical property suitable for various electronic devices such as a BEOL compatible transistor. | Lee, Gyeong Ryul; Seong, Minhyeong; Kim, Seonchang; Pyeon, Kyeongjin; Chung, Roy B. | Kyungpook Natl Univ, Sch Mat Sci & Engn, Daegu 41566, South Korea | 57192425717; 57487797900; 24071193200; 57487142400; 16642183100 | roy.b.chung@knu.ac.kr; | VACUUM | VACUUM | 0042-207X | 1879-2715 | 200 | SCIE | MATERIALS SCIENCE, MULTIDISCIPLINARY;PHYSICS, APPLIED | 2022 | 4 | 29.7 | 1.12 | 2025-06-25 | 11 | 12 | Thermal ALD; Carrier mobility; Post-annealing; And BEOL-Compatible transistor | ATOMIC LAYER DEPOSITION; PERFORMANCE | And BEOL-Compatible transistor; Carrier mobility; Post-annealing; Thermal ALD | Alumina; Aluminum oxide; Annealing; Budget control; Carrier concentration; Carrier mobility; Conductive films; Thin films; Transistors; And back-end-of-line-compatible transistor; Atomic-layer deposition; Back end of lines; Budget constraint; Deposition methods; Postannealing; Thermal; Thermal atomic layer deposition; Thermal budget; Thin-films; Atomic layer deposition | English | 2022 | 2022-06 | 10.1016/j.vacuum.2022.111018 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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