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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 | Quantification of renal T2 relaxation rate by use of blood oxygen level-dependent magnetic resonance imaging before and after furosemide administration in healthy Beagles | OBJECTIVE To assess the feasibility of blood oxygen level-dependent (BOLD) MRI for measurement of the renal T2* relaxation rate (R2*; proxy for renal oxygenation) before and after furosemide administration and to evaluate the reliability and repeatability of those measurements in healthy dogs. ANIMALS 8 healthy adult Beagles (4 males and 4 females). PROCEDURES Each dog was anesthetized and underwent BOLD MRI before (baseline) and 3 minutes after administration of furosemide (1 mg/kg, IV) twice, with a 1-week interval between scanning sessions. Mapping software was used to process MRI images and measure R2* and the difference in R2* (Delta R2*) before and after furosemide administration. The intraclass correlation coefficient was calculated to assess measurement reliability, and the coefficient of variation and Bland-Altman method were used to assess measurement repeatability. RESULTS Mean +/- SD baseline R2* in the renal medulla (24.5 +/- 3.8 seconds(-1)) was significantly greater than that in the renal cortex (20.6 +/- 2.7 seconds(-1)). Mean R2* in the renal cortex (18.6 +/- 2.6 seconds-1) and medulla (17.8 +/- 1.5 seconds(-1)) decreased significantly after furosemide administration. Mean Delta R2* in the medulla (6.7 +/- 2.4 seconds(-1)) was significantly greater than that in the renal cortex (2.1 +/- 0.7 seconds(-1)). All R2* and Delta R2* values had good or excellent reliability and repeatability, except the cortical Delta R2*, which had poor repeatability. CONCLUSIONS AND CLINICAL RELEVANCE Results suggested that BOLD MRI, when performed before and after furosemide administration, was noninvasive and highly reliable and repeatable for dynamic evaluation of renal oxygenation in healthy dogs. | Lee, Sang-Kwon; Lee, Juryeong; Jang, Seolyn; Lee, Eunji; Jeon, Chang-Yeop; Lim, Kyung-Seob; Jin, Yeung Bae; Choi, Jihye | Kyungpook Natl Univ, Coll Vet Med, Daegu 41566, South Korea; Chonnam Natl Univ, Coll Vet Med, Gwangju 61186, South Korea; Chonnam Natl Univ, BK21 Plus Project Team, Gwangju 61186, South Korea; Korea Res Inst Biosci & Biotechnol, Natl Primate Res Ctr, Cheongju 28116, South Korea; Korea Res Inst Biosci & Biotechnol, Futurist Anim Resource & Res Ctr, Cheongju 28116, South Korea; Gyeongsang Natl Univ, Coll Vet Med, Jinju 52828, South Korea; Seoul Natl Univ, Dept Vet Med Imaging, Coll Vet Med, Seoul 08826, South Korea | imsono@snu.ac.kr; | AMERICAN JOURNAL OF VETERINARY RESEARCH | AM J VET RES | 0002-9645 | 1943-5681 | 82 | 11 | SCIE | VETERINARY SCIENCES | 2021 | 1.055 | 67.2 | 2 | TISSUE OXYGENATION; BOLD-MRI; ALLOGRAFT-REJECTION; KIDNEY; HYPOXIA; REPRODUCIBILITY; INHIBITION; SYSTEM; SHOCK; FLOW | English | 2021 | 2021-11 | 바로가기 | 바로가기 | |||||||||||||
| ○ | Article | Quantification of renal t2 relaxation rate by use of blood oxygen level–dependent magnetic resonance imaging before and after furosemide administration in healthy beagles | OBJECTIVE To assess the feasibility of blood oxygen level–dependent (BOLD) MRI for measurement of the renal T2* relaxation rate (R2*; proxy for renal oxy-genation) before and after furosemide administration and to evaluate the reliability and repeatability of those measurements in healthy dogs. ANIMALS 8 healthy adult Beagles (4 males and 4 females). PROCEDURES Each dog was anesthetized and underwent BOLD MRI before (baseline) and 3 minutes after administration of furosemide (1 mg/kg, IV) twice, with a 1-week interval between scanning sessions. Mapping software was used to process MRI images and measure R2* and the difference in R2* (∆R2*) before and after furosemide administration. The intraclass correlation coefficient was calculated to assess measurement reliability, and the coefficient of variation and Bland-Altman method were used to assess measurement repeatability. RESULTS Mean ± SD baseline R2* in the renal medulla (24.5 ± 3.8 seconds−1) was significantly greater than that in the renal cortex (20.6 ± 2.7 seconds−1). Mean R2* in the renal cortex (18.6 ± 2.6 seconds−1) and medulla (17.8 ± 1.5 seconds−1) decreased significantly after furosemide administration. Mean ∆R2* in the medulla (6.7 ± 2.4 seconds−1) was significantly greater than that in the renal cortex (2.1 ± 0.7 seconds−1). All R2* and ∆R2* values had good or excellent reliability and repeatability, except the cortical ∆R2*, which had poor repeatability. CONCLUSIONS AND CLINICAL RELEVANCE Results suggested that BOLD MRI, when performed before and after furo-semide administration, was noninvasive and highly reliable and repeatable for dynamic evaluation of renal oxygenation in healthy dogs. © 2021, American Veterinary Medical Association. All rights reserved. | Lee, Sang-Kwon; Lee, Juryeong; Jang, Seolyn; Lee, Eunji; Jeon, Chang-Yeop; Lim, Kyung-Seob; Jin, Yeung Bae; Choi, Jihye | College of Veterinary Medicine, Kyungpook National University, Daegu, 41566, South Korea; the College of Veterinary Medicine and BK21 Plus Project Team, Chonnam National University, Gwangju, 61186, South Korea; the College of Veterinary Medicine and BK21 Plus Project Team, Chonnam National University, Gwangju, 61186, South Korea; the College of Veterinary Medicine and BK21 Plus Project Team, Chonnam National University, Gwangju, 61186, South Korea; National Primate Research Center, Korea Research Institute of Bioscience and Biotechnol-ogy, Cheongju, 28116, South Korea; Futuris-tic Animal Resource and Research Center, Korea Research Institute of Bioscience and Biotechnol-ogy, Cheongju, 28116, South Korea; the College of Veterinary Medicine, Gyeongsang National Uni-versity, Jinju, 52828, South Korea; Department of Veterinary Medical Imaging, College of Veterinary Medicine, Seoul National University, Seoul, 08826, South Korea | 56494541400; 57935000200; 57225186350; 57225178262; 56522472100; 36470521900; 35344928700; 7501393193 | imsono@snu.ac.kr; | American Journal of Veterinary Research | AM J VET RES | 0002-9645 | 1943-5681 | 82 | 11 | SCIE | VETERINARY SCIENCES | 2021 | 1.055 | 67.2 | 0.37 | 2025-07-30 | 2 | Animals; Dogs; Female; Furosemide; Kidney; Magnetic Resonance Imaging; Male; Oxygen; Reproducibility of Results; alfaxa; alfaxalone; furosemide; isoflurane; terrell; furosemide; oxygen; abdominal radiography; adult; animal experiment; Article; beagle; blood oxygenation; BOLD signal; chronic kidney failure; controlled study; echocardiography; female; hypoxia; image processing; kidney; kidney cortex; kidney inner medulla; male; measurement repeatability; nonhuman; nuclear magnetic resonance imaging; oxygen blood level; relaxation time; reproducibility; test retest reliability; animal; diagnostic imaging; dog; kidney; nuclear magnetic resonance imaging; veterinary medicine | English | Final | 2021 | 10.2460/ajvr.82.11.880 | 바로가기 | 바로가기 | 바로가기 | ||||||||
| ○ | ○ | Article | Suppression of current dispersion in AlGaN/GaN MISHFETs with in-situ AlN passivation layer | We demonstrate effective reduction of interface states and current collapse in AlGaN/GaN metal insulator semiconductor heterostructure field effect transistor (MISHFETs) with Al2O3 and in-situ AlN passivation layer. Here, first, a 3 nm-thick in-situ AlN layer is grown on AlGaN/GaN structure by using MOCVD at 1070 ?C, and second a 7 nm-thick atomic layer deposition (ALD) Al2O3 layer is immediately deposited on the AlN layer. The Xray photoelectron spectroscopy (XPS) analyses for the Ga 3d core level and multi-frequency capacitance?voltage (C?V) measurement show that the density of interface states originated from the Ga-O bonds, which is dramatically reduced with the in-situ AlN passivation layer. The AlGaN/GaN-based MISHFET with the Al2O3/insitu AlN layers exhibits the low gate-lag effect (8%), remarkably less than that of the device with the typical GaN capping layer (21.5%). These results indicate that the Al2O3/in-situ AlN double passivation layer is very effective in suppressing the current collapse, and hence, it is found to be the promising method for the fabrication of AlGaN/GaN MISHFETs with enhanced performance. | Lee, Jun-Hyeok; Kim, Jeong-Gil; Kang, Hee-Sung; Lee, Jung-Hee | Wavice Inc, Hwasung Si, South Korea; Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu, South Korea | Lee, Jong Hui/JFT-0292-2023 | 55929424400; 57203324876; 22937260500; 57196140713 | jlee@ee.knu.ac.kr; | SOLID-STATE ELECTRONICS | SOLID STATE ELECTRON | 0038-1101 | 1879-2405 | 178 | SCIE | ENGINEERING, ELECTRICAL & ELECTRONIC;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER | 2021 | 1.916 | 67.2 | 0.15 | 2025-07-30 | 2 | 2 | GaN MISHFET; AlN; MOCVD; Current collapse; Gate-lag | ENHANCEMENT; COLLAPSE; DEVICES; HEMTS; HFET | AlN; Current collapse; GaN MISHFET; Gate-lag; MOCVD | Alumina; Aluminum gallium nitride; Aluminum nitride; Aluminum oxide; Atomic layer deposition; Capacitance; Electric current measurement; Field effect transistors; Gallium nitride; III-V semiconductors; Interface states; Metal insulator boundaries; MIS devices; Passivation; Wide band gap semiconductors; X ray photoelectron spectroscopy; Capping layer; Current collapse; Current dispersions; Density of interface state; Gate lag effect; Metal-insulator-semiconductors; Multi frequency; Passivation layer; Semiconducting aluminum compounds | English | 2021 | 2021-04 | 10.1016/j.sse.2021.107984 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Thickness Effect of Polar Polymer Films on the Characteristics of Organic Memory Transistors | Organic memory transistors based on an organic field-effect transistor (OFET) structure were fabricated by employing a water-soluble polar polymer, poly(2-acrylamido-2-methyl-1-propanesulfonic acid) (PAMPSA). The thickness of PAMPSA films was varied from 180 nm to 1000 nm and thermally annealed (treated) at 170 C for 30 min. The annealed PAMPSA films were optically transparent with naked eyes even though the absorbance at the wavelength range of ca. 190 similar to 260 nm gradually increased with the film thickness. The devices with the annealed PAMPSA films showed p-channel transistor characteristics at low operation voltages (0 similar to-5 V) and delivered hysteresis of drain current due to the carbon radical-induced dipoles in the thermally annealed PAMPSA films. The best hysteresis characteristics were obtained at the film thickness of 450 nm, whereas the drain current was gradually decreased with the thickness of PAMPSA films. This result has been assigned to the trade-off effect between the capacitance decrease and the dipole increase the PAMPSA thickness increases. The optimized memory devices with the 450 nm-thick PAMPSA layers disclosed excellent retention characteristics during >10,000 cycles of writing-reading-erasing-reading memory tests. | Lee, Chulyeon; Lee, Woongki; Kim, Hwajeong; Kim, Youngkyoo | Kyungpook Natl Univ, Organ Nanoelect Lab, Dept Chem Engn, Sch Appl Chem Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, KNU Inst Nanophoton Applicat KINPA, Dept Chem Engn, Sch Appl Chem Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, Prior Res Ctr, Res Inst Environm Sci & Technol, Daegu 41566, South Korea | 56354831300; 59041346100; 15520531700; 10340424400 | ykimm@knu.ac.kr; | MACROMOLECULAR RESEARCH | MACROMOL RES | 1598-5032 | 2092-7673 | 29 | 12 | SCIE | POLYMER SCIENCE | 2021 | 2.127 | 67.2 | 0.08 | 2025-07-30 | 1 | 1 | organic memory transistor; OFET; polar polymer; thickness effect; hysteresis | LOW-VOLTAGE; NONVOLATILE; RETENTION | hysteresis; OFET; organic memory transistor; polar polymer; thickness effect | Annealing; Capacitance; Carbon films; Drain current; Economic and social effects; Organic field effect transistors; Polymer films; Field effect transistor structures; Film-thickness; Memory transistors; Naked-eye; Organic field-effect transistors; Organic memory; Organic memory transistor; Polar polymers; Thickness effect; Watersoluble; Hysteresis | English | 2021 | 2021-12 | 10.1007/s13233-021-9103-7 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | FLOW FLATTENING IN CONTINUOUS CASTING MOLD BY ELECTROMAGNETIC EFFECTS | The magnetohydrodynamics (MHD) technique is widely used in various industrial fields such as manufacturing of semi-conducting wafers, the blanket flows of fusion reactors, and the continuous casting process. For the improvement of internal and external casting defects, various flow braking systems using the MHD technology have been devised and applied to actual continuous casting plants. However, in order to apply such systems more successfully, it is crucial to properly understand the electromagnetic phenomena inside the continuous casting mold (CCM) and the resulting fluid dynamic behaviors. In this study, the hydrodynamic characteristics in the CCM are numerically investigated when a uniform magnetic field flux is applied to the CCM externally. Instead of the flow-braking concept, which has been widely recognized, the flow-flattening phenomenon affected by an electromagnetic action such as the Hartmann layer is discussed in this paper. Although the thermal behavior in the CCM is not handled in this study, the flow-flattening concept is a more effective countermeasure to properly cope with the solidification problem. For the electromagnetic behaviors, the Poisson equation for the electrical potential is solved. The velocity profiles, current density, Lorentz force, etc. are presented for cases with and without applying the magnetic field flux. | Lee, Jong Hui; Park, Il Seouk | Kyungpook Natl Univ, Sch Mech Engn, 80 Daehakro, Daegu 702701, South Korea | Lee, Jong Hui/JFT-0292-2023 | 57204669495; 50262800000 | einstein@knu.ac.kr; | HEAT TRANSFER RESEARCH | HEAT TRANSF RES | 1064-2285 | 2162-6561 | 52 | 9 | SCIE | THERMODYNAMICS | 2021 | 1.975 | 67.5 | 0.17 | 2025-07-30 | 2 | 2 | continuous casting mold; magnetohydrodynamics; Lorentz force; electrical potential; current density | COUPLED TURBULENT-FLOW; FLUID-FLOW; NUMERICAL-SIMULATION; MAGNETIC-FIELD; HEAT-TRANSFER; STEEL; SOLIDIFICATION; TRANSPORT; BRAKE; SHAPE | Continuous casting mold; Current density; Electrical potential; Lorentz force; Magnetohydrodynamics | Continuous casting; Molds; Poisson equation; Continuous casting mold; Continuous casting plants; Continuous casting process; Electromagnetic action; Electromagnetic behavior; Electromagnetic phenomena; Hydrodynamic characteristics; Uniform magnetic fields; Magnetohydrodynamics | English | 2021 | 2021 | 10.1615/heattransres.2021037553 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Genomic characterization and probiotic potential of Lactobacillus casei IDCC 3451 isolated from infant faeces | Probiotics play an important role in health benefits on the host. However, they also possess potentials for infectivity or in situ toxin production; thus, requiring a comprehensive assessment of their safety. In this study, we report genomic characteristics of a newly isolated Lactobacillus casei IDCC 3451 from infant faeces. Phenotypic assays based on enzyme activities and carbohydrate fermentation profiles represented metabolic features of the strain. Safety evaluation for antimicrobial resistance, biogenic amines production and cytotoxicity to a murine mouse model suggested its safe use as a probiotic strain. Our findings on the genetic background of L. casei IDCC 3451 and its potential features provide a promising functional and safe probiotic strain for the human consumption. | Shin, M.; Ban, O-H.; Jung, Y. H.; Yang, J.; Kim, Y. | Seoul Natl Univ, Dept Agr Biotechnol, Seoul 08826, South Korea; Seoul Natl Univ, Res Inst Agr & Life Sci, Seoul, South Korea; Ildong Biosci, 17 Poseunggongdan Ro, Pyeongtaek Si 17957, Gyeonggi Do, South Korea; Kyungpook Natl Univ, Sch Food Sci & Biotechnol, Daegu, South Korea | ; Jung, Young/F-1703-2013; Jung, Young Hoon/F-1703-2013 | 57208401604; 57219226382; 55550063700; 56076383700; 57861979600 | yjw@ildong.com;ykeys2584@snu.ac.kr; | LETTERS IN APPLIED MICROBIOLOGY | LETT APPL MICROBIOL | 0266-8254 | 1472-765X | 72 | 5 | SCIE | BIOTECHNOLOGY & APPLIED MICROBIOLOGY;MICROBIOLOGY | 2021 | 2.813 | 67.6 | 0.87 | 2025-07-30 | 11 | 11 | probiotics; safety assessment; whole genome sequencing | probiotics; safety assessment; whole genome sequencing | Animals; Anti-Bacterial Agents; Drug Resistance, Bacterial; Feces; Fermentation; Genome, Bacterial; Genomics; Humans; Infant; Lactobacillus casei; Mice; Probiotics; Lactobacillus casei; Murinae; Amines; Genes; Genome; ampicillin; bacterial enzyme; biogenic amine; carbohydrate; chloramphenicol; clindamycin; erythromycin; gentamicin; idcc 3451; kanamycin; probiotic agent; streptomycin; tetracycline; vancomycin; antiinfective agent; probiotic agent; Comprehensive assessment; Genomic characterization; Health benefits; Lactobacillus casei; Probiotic potentials; Probiotic strain; Probiotics; Safety assessments; Toxin production; Whole genome sequencing; bacterium; bioassay; enzyme; enzyme activity; feces; genomics; metabolism; phenotype; probiotics; toxicity; toxin; acute toxicity; animal experiment; animal tissue; antibiotic resistance; antibiotic sensitivity; Article; bacterial genome; bacterial strain; bacterium isolation; controlled study; drug cytotoxicity; drug mechanism; drug safety; enzyme activity; feces; female; fermentation; genetic background; human; in vivo study; infant; Lactobacillus casei; mouse; nonhuman; phenotype; single drug dose; SMRT sequencing; toxicity testing; whole genome sequencing; animal; genetics; genomics; isolation and purification; Lactobacillus casei; metabolism; microbiology; Probiotics | English | 2021 | 2021-05 | 10.1111/lam.13449 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Optimization of extracellular matrix extraction from human perirenal adipose tissue | Human adipose tissue includes useful substrates for regenerative medicine such as the extracellular matrix (ECM), but most perirenal fat tissue is wasted after kidney surgery. Since a lot of adipose tissue can be procured after a kidney, we extracted ECM from human perirenal adipose tissue and optimized the extraction process. To verify the efficacy for ECM extraction, we compared the products in several steps. Perirenal adipose tissue was either finely homogenized or underwent crude manual dissection. The amount of extracted ECM was quantified with ELISA for verification of the initial tissue downsizing effect. To validate the drying effect for fast and complete delipidation, tissues were prepared in a dry or wet phase, and residual lipids were visualized with Oil-Red-O staining. The extracted lipid was assayed at each time point to quantify the appropriate delipidation time. To select the optimal decellularization method, tissues were treated with physical, chemical, or enzymatic method, and the residual cell debris were identified with histological staining. The biochemical properties of the ECM extracted by the above methods were analyzed. The ECM extracted by fine homogenization showed a significantly enhanced amount of collagen, laminin and fibronectin compared to the crude dissection method. The dried tissue showed fast and complete lipid elimination compared to the wet tissue. Complete delipidation was achieved at 45 min after acetone treatment. Additionally, 1% triton X-100 chemical treatment showed complete decellularization with well-preserved collagen fibers. Biochemical analysis revealed preserved ECM proteins, a high cell proliferation rate and normal cell morphology without cell debris or lipids. The established process of homogenization, drying, delipidation with acetone, and decellularization with Triton X-100 treatment can be an optimal method for ECM extraction from human perirenal adipose tissue. Using this technique, human perirenal adipose tissue may be a valuable source for tissue engineering and regenerative medicine. | Chun, So Young; Lee, Jun Nyung; Ha, Yun-Sok; Yoon, Bo Hyun; Lee, Eun Hye; Kim, Bo Mi; Gil, Haejung; Han, Man-Hoon; Oh, Woo Seok; Kwon, Tae Gyun; Kim, Tae-Hwan; Kim, Bum Soo | Kyungpook Natl Univ Hosp, BioMed Res Inst, Daegu, South Korea; Kyungpook Natl Univ, Chilgok Hosp, Sch Med, Dept Urol, Daegu, South Korea; Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Sch Med, Dept Pathol, Daegu, South Korea; Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Sch Med, Dept Urol, Daegu, South Korea; Kyungdae S Urol Clin, Daegu, South Korea | Lee, Eun-Hye/KDN-5679-2024; Kim, Shin-Hyun/F-5504-2012 | 8688166900; 16301364600; 35487226400; 57218931150; 57189661699; 57218929773; 57221906264; 57194067936; 26026019500; 15073765400; 57797823600; 57202817150 | dock97@hanmail.net; | JOURNAL OF BIOMATERIALS APPLICATIONS | J BIOMATER APPL | 0885-3282 | 1530-8022 | 35 | 9 | SCIE | ENGINEERING, BIOMEDICAL;MATERIALS SCIENCE, BIOMATERIALS | 2021 | 2.712 | 67.9 | 0.42 | 2025-07-30 | 7 | 7 | Perirenal; adipose tissue; extracellular matrix; tissue engineering; human | adipose tissue; extracellular matrix; human; Perirenal; tissue engineering | Adipose Tissue; Adult; Dissection; Extracellular Matrix; Humans; Kidney; Non-Fibrillar Collagens; Young Adult; Acetone; Cell proliferation; Cells; Collagen; Cytology; Debris; Dissection; Drying; Extraction; Histology; Homogenization method; Lipids; Regenerative Medicine; Tissue; acetone; collagen; fibronectin; laminin; triton x 100; nonfibrillar collagen; Biochemical analysis; Biochemical properties; Cell proliferation rate; Chemical treatments; Extracellular matrices; Extraction process; Human adipose tissue; Oil red o staining; Article; biochemistry; cell function; cell proliferation; cell structure; chemical procedures; collagen fiber; controlled study; decellularization; dissection; enzyme activity; enzyme linked immunosorbent assay; extracellular matrix; extraction; histology; human; human tissue; lipid analysis; perirenal fat; physical parameters; physical phase; priority journal; process optimization; quantitative analysis; regenerative medicine; staining; tissue engineering; validation process; adipose tissue; adult; chemistry; cytology; kidney; procedures; young adult; Tissue engineering | English | 2021 | 2021-04 | 10.1177/0885328220984594 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Prevalence and Molecular Characterization of Coxiella burnetii in Cattle, Goats, and Horses in the Republic of Korea | Coxiella burnetii is an obligate intracellular zoonotic bacterium with a global distribution. This study was conducted to investigate the prevalence of C. burnetii in different animals and to assess the potential role of these species as reservoirs of infection and transmission to humans. A total of 592 blood samples (105 beef cattle, 61 dairy cattle, 110 Korean native goats, 83 Boer goats, and 233 horses) were collected in the Republic of Korea (ROK). The C. burnetii DNA was detected from blood samples using the transposon-like repetitive region (IS1111) by PCR method. The results showed that 22.7% of the Korean-native goats, 16.4% of the dairy cattle, 15.2% of the beef cattle, 6.0% of the Boer goats, and 5.2% of the horses were positive for C. burnetii. Significant differences were found between the animal species. The univariable binary logistic regression analysis revealed that the risk of contracting C. burnetii was significantly high by 5.4-fold in Korean-native goats (95% confidence interval [CI]: 2.60%-11.27%, p = 0.000), 3.6-fold in dairy cattle (95% CI: 1.48%-8.82%, p = 0.005), and 3.3-fold in beef cattle (95% CI: 1.51%-7.28%, p = 0.003) compared with horses. A phylogenetic tree based on the IS1111 gene revealed that our sequences had 92.2%-99.9% similarity and were clustered with those detected in humans, cattle, goats, dogs, rodents, and ticks. C. burnetii circulating in the ROK exhibits genetic variation. To the best of our knowledge, this is the first study to identify C. burnetii DNA in a horse in the ROK. These results suggest that cattle, goats, and horses can be potential reservoirs for C. burnetii and play an important role in the transmission of infection. Further studies should assess the pathogenicity of C. burnetii circulating in the ROK. | Cho, Hyung-Chul; Hwang, Sunwoo; Kim, Eun-Mi; Park, Yu-Jin; Shin, Seung-Uk; Jang, Dong-Hoon; Chae, Joon-Seok; Choi, Kyoung-Seong | Kyungpook Natl Univ, Dept Anim Sci & Biotechnol, Coll Ecol & Environm Sci, Sangju 37224, South Korea; Kyungpook Natl Univ, Dept Horse Compan & Wild Anim, Coll Ecol & Environm Sci, Sangju, South Korea; Seoul Natl Univ, Lab Vet Internal Med, PLUS Program Creat Vet Sci Res BK21, Res Inst Vet Sci, Seoul, South Korea; Seoul Natl Univ, Coll Vet Med, Seoul, South Korea | 57219427000; 57217125669; 57219722950; 57219426539; 56967385500; 57219727115; 7102478039; 7403949556 | kschoi3@knu.ac.kr; | VECTOR-BORNE AND ZOONOTIC DISEASES | VECTOR-BORNE ZOONOT | 1530-3667 | 1557-7759 | 21 | 7 | SCIE | INFECTIOUS DISEASES;PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH | 2021 | 2.523 | 67.9 | 0.54 | 2025-07-30 | 9 | 10 | Coxiella burnetii; reservoir; IS1111 gene; PCR | Q-FEVER; DOMESTIC RUMINANTS; SHEEP; SEROPREVALENCE; DIAGNOSIS; RESERVOIR; ABORTION; DISEASE; MILK | Coxiella burnetii; IS1111 gene; PCR; reservoir | Animals; Cattle; Cattle Diseases; Coxiella burnetii; Dog Diseases; Dogs; Goat Diseases; Goats; Horse Diseases; Horses; Phylogeny; Prevalence; Q Fever; bacterial DNA; Article; bacterial transmission; beef cattle; controlled study; Coxiella burnetii; dairy cattle; dairy goat; disease reservoir; dog; farm animal; gene; gene cluster; gene sequence; genetic variation; horse; human; infection risk; is1111 gene; molecular fingerprinting; nonhuman; phylogenetic tree; polymerase chain reaction; positivity rate; prevalence; Q fever; rodent; South Korea; tick; transposon; animal; bovine; cattle disease; Coxiella burnetii; dog disease; genetics; goat; goat disease; horse disease; phylogeny; veterinary medicine | English | 2021 | 2021-07-01 | 10.1089/vbz.2020.2764 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Terrorist attacks and total factor productivity | This study examines the impact of terrorist attacks on total factor productivity (TFP). Using measures of attack proximity in the U.S., we find strong evidence that terrorist attacks overall reduce firm-level TFP. Specifically, the firms located near terrorist attacks experience a nearly 3.4% TFP decrease in standard deviation units. Our evidence is robust to a battery of additional tests, and the impact of terrorist attacks on TFP is more pronounced for high-competition industries and firms with high tangibility. (c) 2021 Elsevier B.V. All rights reserved. | Mun, Seongjae; Han, Seung Hun; Kim, Hyeong Joon | Kyungpook Natl Univ, Sch Business Adm, 80 Daehak Ro, Daegu, South Korea; Korea Adv Inst Sci & Technol, Sch Business & Technol Management, Coll Business, 291 Daehak Ro, Daejeon, South Korea | ; Han, Seung/C-1783-2011 | 57216877275; 25824269200; 57204978577 | forbelld@knu.ac.kr;synosia@kaist.ac.kr;creatinghj@kaist.ac.kr; | ECONOMICS LETTERS | ECON LETT | 0165-1765 | 1873-7374 | 202 | SSCI | ECONOMICS | 2021 | 1.469 | 67.9 | 0.55 | 2025-07-30 | 8 | 8 | Terrorist attacks; Total factor productivity | Terrorist attacks; Total factor productivity | English | 2021 | 2021-05 | 10.1016/j.econlet.2021.109808 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Letter | Reply to "Regarding "Inferior vena cava filter retrieval in trauma patients: contrast-enhanced CT-based retrieval within hospital stay"" | Lee, Sang Yub; Korea, Miran Kim | Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Sch Med, Dept Radiol, Daegu, South Korea | Lee, Joo/C-3851-2013 | 56016177400; 57222990659 | sangyub@knu.ac.kr; | CLINICAL IMAGING | CLIN IMAG | 0899-7071 | 1873-4499 | 78 | SCIE | RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING | 2021 | 2.42 | 68.0 | 0 | 2025-07-30 | 0 | 0 | Inferior vena cava; Computed tomography; Retrieval rate; Radiation | Computed tomography; Inferior vena cava; Radiation; Retrieval rate | Device Removal; Humans; Length of Stay; Pulmonary Embolism; Tomography, X-Ray Computed; Vena Cava Filters; computer assisted tomography; contrast-enhanced computed tomography; Doppler ultrasonography; follow up; health care cost; hospitalization; human; Letter; national health insurance; nephrotoxicity; radiation exposure; venous thromboembolism; venous thromboembolism computed tomography; adverse device effect; device removal; length of stay; lung embolism; vena cava filter; x-ray computed tomography | English | 2021 | 2021-10 | 10.1016/j.clinimag.2021.05.030 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Single center experience of inferior vena cava filter retrieval in trauma patients: contrast-enhanced CT-based retrieval within hospital stay | Purpose: To assess the safety and retrieval rate of a predischarge inferior vena cava (IVC) filter retrieval strategy based on contrast computed tomography (CT). Methods: IVC filter insertion for trauma patients from 2010 to 2018 were reviewed. An active filter retrieval strategy was established in March 2017. The strategy sought early evaluation of venous thromboembolism (VTE) status and filter retrieval before a patient's discharge. The possibility of early IVC filter retrieval was evaluated by a multidisciplinary team based on pre-filter retrieval VTE-CT findings. Overall VTE-CT findings, retrieval rate, indwelling time, and recurrence of venous thromboembolic events were compared before and after the filter retrieval strategy setup. Results: 177 IVC filters were inserted in trauma patients. All patients underwent pre-filter retrieval VTE-CT. VTECT findings were as follows: completely resolved VTE, n = 108 (61%); partially improved, n = 58 (33%); no change, n = 8 (5%); aggravated, n = 3 (2%). The overall retrieval rate was 84% with a mean indwelling time of 32 days. In subgroup analyses, 95 (53%) had filter retrieval with the before strategy (BS) setup and 82 (47%) with the after strategy (AS) setup. The retrieval rate was significantly higher in the AS group [81/82 (99%) vs. 68/95 (72%), (p < 0.001)]. No patients had recurrent VTE during the follow-up period. Conclusions: The active strategy of VTE-CT-based filter retrieval during the hospital stay markedly improved the filter retrieval rate from 72% to 99% without evidence of recurrence of VTE. Hazards of low retrieval rate versus CT-related radiation exposure should be studied in the future. | Kim, Miran; Lee, Sang Yub; Cha, Jung Guen; Hong, Jihoon; Lim, Kyoung Hoon; Lee, Jaehee; Cha, Seung-Ick; Kim, Chang-Ho; Kim, Hyung-Kee; Oh, Chang-Wug | Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Sch Med, Dept Radiol, Daegu, South Korea; Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Sch Med, Dept Surg, Daegu, South Korea; Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Sch Med, Dept Internal Med, Daegu, South Korea; Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Sch Med, Dept Orthoped Surg, Daegu, South Korea | Lee, Jaehee/S-1697-2018; Lee, Junseong/T-4139-2017; Oh, Chang-Wug/AAO-4602-2021; Kim, Hyung-Kee/JBR-8125-2023; Lee, Joo/C-3851-2013 | 57222990659; 56016177400; 57206855971; 57215858314; 25630643100; 13805476000; 35227126400; 7409873555; 35169819900; 22135834200 | sangyub@knu.ac.kr;jaelee@knu.ac.kr;sicha@knu.ac.kr;kimch@knu.ac.kr;hkkim6260@knu.ac.kr;cwoh@knu.ac.kr; | CLINICAL IMAGING | CLIN IMAG | 0899-7071 | 1873-4499 | 79 | SCIE | RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING | 2021 | 2.42 | 68.0 | 0.11 | 2025-07-30 | 1 | 1 | Inferior vena cava filter; Computed tomography; Filter retrieval; Retrieval rate; Venous thromboembolism | GUIDELINES; RATES; INSERTION | Computed tomography; Filter retrieval; Inferior vena cava filter; Retrieval rate; Venous thromboembolism | Humans; Length of Stay; Retrospective Studies; Risk Factors; Tomography, X-Ray Computed; Vena Cava Filters; Venous Thromboembolism; Hospitals; And filters; Contrast-enhanced; Early evaluation; Filter retrieval; Inferior vena cava filters; Patient discharge; Retrieval rate; Retrieval strategies; Trauma patients; Venous thromboembolism; adolescent; adult; aged; anticoagulant therapy; Article; clinical assessment; clinical feature; cohort analysis; computer assisted tomography; contrast enhancement; controlled study; female; hospital discharge; human; injury; length of stay; major clinical study; male; patient safety; recurrent disease; retrospective study; venous thromboembolism; diagnostic imaging; length of stay; risk factor; vena cava filter; venous thromboembolism; x-ray computed tomography; Computerized tomography | English | 2021 | 2021-11 | 10.1016/j.clinimag.2021.04.004 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | Article | Effects of Orlistat/Phentermine versus Phentermine on Vascular Endothelial Cell Function in Obese and Overweight Adults: A Randomized, Double-Blinded, Placebo-Controlled Trial | Background: In clinical practice, concomitant treatment of orlistat with phentermine is commonly used off-label. However, clinical trials have not been performed to evaluate whether their combination improves metabolic parameters and cardiovascular risk factors other than weight loss. Therefore, we aimed to compare the efficacy of concomitant administration of orlistat and phentermine versus phentermine alone on the endothelial cell function in overweight and obese adults with back pain. Methods: We conducted a 12-week, double-blinded, placebo-controlled clinical trial involving 114 patients with a body mass index of >= 30 (obese) or >= 27 (overweight) with weight-related comorbidities. We randomly assigned patients in a 1:1 ratio to receive orlistat (120mg) three times daily and phentermine (37.5mg) once daily, or a placebo three times daily and phentermine (37.5mg) once daily. Primary endpoint was changes in endothelium-dependent vasodilatation measured using ultrasound assessment of flow-mediated dilatation (FMD). Differences within groups after intervention were compared using the paired t-test or Wilcoxon signed-rank test. Differences in changes between the groups were calculated using an analysis of covariance after adjusting for each baseline value. Results: Mean weight loss during the 12-week study period was 6.1kg in the orlistat/phentermine group and in the placebo/phentermine group. Adjusted mean changes in total and non-high-density lipoprotein cholesterol were significantly greater in the orlistat/phentemiine group than in the placebo/phentermine group. Adjusted mean changes in endothelium-dependent FMD were significantly greater in the orlistat/phentermine group than in the placebo/phentemiine group (4.97 +/- 0.98% vs 2.05 +/- 0.99%, respectively; p=0.038). Changes in endothelium-independent nitroglycerin-mediated dilatation were not significantly different between the groups. Conclusion: Orlistat/phentemiine significantly improved the vascular endothelial cell function compared with phentermine alone. Orlistat might have beneficial effects on the decrease of the risk of cardiovascular disease, especially in overweight and obese patients with comorbidities. | Kwon, Yu-Jin; Lee, Hyangkyu; Nam, Chung Mo; Chang, Hyuk-Jae; Yoon, Young-Ran; Lee, Hye Sun; Lee, Ji-Won | Yonsei Univ, Severance Hosp, Dept Family Med, Coll Med, Seoul, South Korea; Yonsei Univ, Dept Med, Grad Sch, Coll Med, Seoul, South Korea; Yonsei Univ, Yongin Severance Hosp, Dept Family Med, Coll Med, Yongin, South Korea; Yonsei Univ, Mo Im Kim Nursing Res Inst, Coll Nursing, Seoul, South Korea; Yonsei Univ, Dept Prevent Med, Coll Med, Seoul, South Korea; Yonsei Univ, Severance Cardiovasc Hosp, Dept Internal Med, Div Cardiol,Coll Med, Seoul, South Korea; Kyungpook Natl Univ, Sch Med, Dept Mol Med, Daegu, South Korea; Yonsei Univ, Dept Res Affairs, Biostat Collaborat Unit, Coll Med, Seoul, South Korea | LEE, Ji/C-2295-2009; Yoon, Young-Ran/GLT-0172-2022; Kwon, Yu-Jin/ACB-8082-2022; Lee, Hye Sun/J-2154-2015; Chang, Hyuk-Jae/NOE-3279-2025; Lee, Hye/J-2154-2015 | indi5645@yuhs.ac; | DIABETES METABOLIC SYNDROME AND OBESITY-TARGETS AND THERAPY | DIABET METAB SYND OB | 1178-7007 | 14 | SCIE | ENDOCRINOLOGY & METABOLISM | 2021 | 3.249 | 68.2 | 4 | obesity; orlistat; phentermine; endothelial cell function | NITRIC-OXIDE PRODUCTION; FATTY-ACID SYNTHASE; WEIGHT-LOSS; ORLISTAT; HYPERCHOLESTEROLEMIA; VASODILATION; SIBUTRAMINE; EFFICACY; WOMEN | English | 2021 | 2021 | 10.2147/dmso.s2300342 | 바로가기 | 바로가기 | 바로가기 | |||||||||||
| ○ | ○ | Article | A Planar Dual-Band Antenna for ISM/Wearable Applications | In this paper, a small size, planar, dual-band antenna is proposed for ISM band applications. The antenna consists of a ground plane, a rectangular patch, and a microstrip feed line of 50 omega. The antenna patch is loaded with several slots to obtain dual resonances in the range of 902-928 MHz and 2400-2480 MHz, covering the lower and higher ISM band frequencies, respectively. The simulated and measured results are presented to validate the proposed antenna design. The specific absorption rate results show that the proposed antenna operates within the approved standard limits and can be used as a flexible antenna. | Singh, Hari; Srivastava, Kunal; Kumar, Sachin; Kanaujia, Binod Kumar | Jawaharlal Nehru Univ, Sch Computat & Integrat Sci, New Delhi 110067, India; Univ Delhi, Sri Venkateswara Coll, Dept Elect, New Delhi 110021, India; Kyungpook Natl Univ, Sch Elect Engn, Daegu 41566, South Korea | Kumar, Sachin/W-2211-2019; kanaujia, Binod/L-6484-2019 | 57677110700; 57213897837; 56907994000; 56962785800 | gupta.sachin0708@gmail.com; | WIRELESS PERSONAL COMMUNICATIONS | WIRELESS PERS COMMUN | 0929-6212 | 1572-834X | 118 | 1 | SCIE | TELECOMMUNICATIONS | 2021 | 2.017 | 68.3 | 0.87 | 2025-07-30 | 10 | 16 | Antenna; Bending; ISM; Planar; Wearable | TEXTILE ANTENNA | Antenna; Bending; ISM; Planar; Wearable | Antenna feeders; Antenna grounds; Microstrip antennas; Antenna design; Dual band antennas; Dual resonance; Flexible antennas; Measured results; Microstrip feedline; Rectangular patch; Specific absorption rate; Slot antennas | English | 2021 | 2021-05 | 10.1007/s11277-020-08036-0 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Review | A State-of-the Art Review on Distributed Amplifiers | Distributed amplifiers (DAs) are always considered the best choice for wideband amplification as they offer appropriate gain, matching and noise figure over the large bandwidth. With the recent advancements in microwave integrated circuits, monolithic microwave integrated circuits and device processing technology, DAs have discovered new applications of the wideband amplifier. At mm-wave frequencies, the wideband amplifier is used for several applications such as radar imaging, space radiometry, optoelectronics, high-frequency transceivers, plasma diagnostics, ultra-fast measurement systems and defence systems. The main requirement of these applications is to amplify short pulses or to realize a high data rate. Studies show that DA may also be used for next-generation 100+ Giga-baud/s coherent linear fiber optic applications. This paper presents an overview of various types of DAs. In the paper, the different technologies and design methods used for designing various types of DA (from 2009 to 2019) are reported. Furthermore, a comparative analysis of the gain-bandwidth product based on different technologies is given. | Shailesh; Srivastava, Garima; Kumar, Sachin | Ambedkar Inst Adv Commun Technol & Res, Dept Elect & Commun Engn, Delhi 110031, India; Guru Gobind Singh Indraprastha Univ, Delhi 110078, India; Netaji Subhas Univ Technol East Campus, Delhi 110031, India; Kyungpook Natl Univ, Sch Elect Engn, Daegu 41566, South Korea | Srivastava, garima/KDN-5769-2024; Jayant, Shailesh/GYV-5525-2022; Kumar, Sachin/W-2211-2019 | 57219992249; 58556889800; 56907994000 | shailesh.jayant404@gmail.com;garima.shrivastav@gmail.com;gupta.sachin0708@gmail.com; | WIRELESS PERSONAL COMMUNICATIONS | WIRELESS PERS COMMUN | 0929-6212 | 1572-834X | 117 | 2 | SCIE | TELECOMMUNICATIONS | 2021 | 2.017 | 68.3 | 0.24 | 2025-07-30 | 6 | 9 | Distributed amplifier; Gain-bandwidth product; Microwave integrated circuits (MIC); Monolithic microwave integrated circuits (MMIC); Power added efficiency (PAE) | POWER-AMPLIFIER; GHZ; DESIGN; NETWORK; NOISE; GBW | Distributed amplifier; Gain-bandwidth product; Microwave integrated circuits (MIC); Monolithic microwave integrated circuits (MMIC); Power added efficiency (PAE) | Bandwidth; Broadband amplifiers; Microwave amplifiers; Microwaves; Millimeter waves; Noise figure; Plasma diagnostics; Timing circuits; Best choice; Distributed amplifier; Gain matching; Gain-bandwidth products; Microwave integrated circuit; Monolithic microwave integrated circuit; Power added efficiency; Power-added-efficiency; State-of-the art reviews; Wideband amplification; Monolithic microwave integrated circuits | English | 2021 | 2021-03 | 10.1007/s11277-020-07932-9 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Aspects of unmanned aerial vehicles path planning: Overview and applications | Aiming to the applications from security surveillance, military operational capabilities to the content and package delivery, unmanned aerial vehicles (UAVs) has a successfully created his space in the available technologies. The compact sized powerful flying robots are wirelessly controlled and are capable to complete tasks with and without direct human intervention. UAVs however still face serious challenges that limit the dream of complete autonomous unmanned flying machines. The key challenges include path planning and obstacle avoidance of these unmanned flying robots that are unavoidable while performing the application-specific functionalities both in indoor and outdoor environments. In this manuscript with a survey, we investigate the state-of-the-art UAV path planning algorithms and obstacle avoidance techniques. We have also summarized and compared the schemes in tabular form. In addition, current and future research directions and challenges are also discussed, showing the prospective research directions. | Khan, Muhammad Toaha Raza; Muhammad Saad, Malik; Ru, Yang; Seo, Junho; Kim, Dongkyun | Kyungpook Natl Univ, Sch Comp Sci & Engn, Daegu 41566, South Korea | Khan, Turyalai/HPH-0061-2023; Khan, Muhammad Toaha Raza/KXR-8209-2024; Saad, Malik/ABF-9433-2021 | 57202044597; 57220715290; 57223047679; 57208740581; 35753648800 | dongkyun@knu.ac.kr; | INTERNATIONAL JOURNAL OF COMMUNICATION SYSTEMS | INT J COMMUN SYST | 1074-5351 | 1099-1131 | 34 | 10 | SCIE | ENGINEERING, ELECTRICAL & ELECTRONIC;TELECOMMUNICATIONS | 2021 | 1.882 | 68.3 | 2.94 | 2025-07-30 | 34 | 53 | multidimensional space searching; obstacle avoidance; path planning; unmanned aerial vehicles (UAVs) | SOLAR-POWERED UAV; ALGORITHM; INTERNET; TARGET | multidimensional space searching; obstacle avoidance; path planning; unmanned aerial vehicles (UAVs) | Antennas; Military applications; Military vehicles; Robots; Unmanned aerial vehicles (UAV); Application specific; Future research directions; Human intervention; Operational capabilities; Outdoor environment; Path-planning algorithm; Security surveillance; State of the art; Robot programming | English | 2021 | 2021-07-10 | 10.1002/dac.4827 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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