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Cho, Eun Sook,Jin, Byung Rae,Sohn, Hung Dae,Choi, Kwang Ho,Kim, Soung Ryul,Kang, Seok Woo,Yun, Eun Young,Kim, Sang Hyun,Kim, Keun Young,Je, Yeon Ho,Kang, Seok Kwon 한국잠사학회 1998 한국잠사곤충학회지 Vol.40 No.2
To construct transfurmed Bm5 cells, Autographa californica nuclear polyhedrosis virus(AcNPV) IE1 gene, an immediate early viral gene was firstly used in this study. AcNPV IE1 gene, which shares on 95.3% nucleotide sequence homology with Bombyx mori nuclear polyhedrosis virus (BmNPV) IE1 gene, was isolated and cloned into pBluescript. Neomycin gene from pKO-neo was inserted under the control of the IE1 promoter to yield pAcIE1-neo. The plasmid pAcIE1-neo was transfected into Bm5 or Sf9 cells, and neomycin-resistant cells were selected in TC100 medium containing 10% fetal bovine serum (FBS) and 1 mg/ml G4l8 for two weeks. Individual clones were picked and each was amplified for further characterization. The genomic DNA from neomycin-resistant cells was isolated and characterized by PCR using AcNPV IEI gene-specific primers and by Southern blot analysis using neomycin gene probe. We concluded that AcNPV IE1 gene was functional in B. mori-derived Bm5 cells as well as Spodoptera fugjprrda-derived Sf9 cells to produce stably-transformed insect cells
Kang, Yoon-Hee,Song, Sang-Keun,Hwang, Mi-Kyeong,Jeong, Ju-Hee,Kim, Yoo-Keun Chinese Geoscience Union 2016 TAO Vol.27 No.6
<P>An urban canopy model (UCM), with detailed urban land-use and anthropogenic heat information, is required to reproduce and understand the urbanization process and its impact on regional climate and urban air quality. This study investigates the UCM impact on simulated meteorology and surface ozone in the coastal city of Busan using the WRF-SMOKE-CMAQ model coupled with (UCM case), and without the UCM (NOUCM case). The UCM and NOUCM case results suggest that UCM case generally produces warmer temperatures and deeper planetary boundary layer (PBL) heights, especially in the early morning and night time, than the NOUCM case. Owing to urban heating and enhanced turbulent mixing incorporation in the center of the city, the sea breeze in the UCM case tends to penetrate faster and more strongly than in the NOUCM case. After sea breeze arrival at the urban center, the urban heat island effect prevents its penetration further inland. In the UCM case in the late afternoon, local meteorological changes induce remarkable increases in simulated O-3 concentrations over the downwind (up to 17.1 ppb) and downtown (up to 10.6 ppb) areas. This is probably due to an increase in temperature in the urban areas and the wind convergence zone movement due to the sea breeze interaction and offshore flows. The increase in O-3 concentration in the late afternoon results in the model bias reduction under previously underestimated O-3 conditions due to high NOx emissions. The simulated O-3 concentrations in the UCM case are more similar to the observed O-3 concentrations compared to those of the NOUCM case.</P>
Polypyrrole Modified Electrode as a Nitrate Sensor
Sung Chul Kang,Keun-Sun Lee,Jin-Doo Kim,Kang-Jin Kim Korean Chemical Society 1990 Bulletin of the Korean Chemical Society Vol.11 No.2
The potentiometric response behavior of a polypyrrole(PPy) coated Pt electrode to nitrate ion has been studied. The electrode shows a nernstian behavior with a slope of 59 mV over 0.50 M to $1.0{\times}10^{-3}M\;NO_3\;^-$ and a detection limit of $1.0{\times}10^{-4}M\;NO_3\;^-$. The response of the electrode is fast and the selectivities for $I^-,\;ClO_4\;^-,\;and\;IO_4\;^-$ are found to be improved. The effect of pH on the potential response to $NO_3\;^-$ is compared with the existing nitrate ion selective electrodes.
Kang, Ho Won,Lee, Sang Keun,Kim, Won Tae,Kim, Yong-June,Yun, Seok-Joong,Lee, Sang-Cheol,Kim, Wun-Jae Mary Ann Liebert 2014 Journal of endourology Vol.28 No.8
<P>Purpose: To assess the association between dyslipidemia and urolithiasis, a propensity score-matching study was performed. Patients and Methods: Fasting blood samples were taken, and serum lipid profiles were measured in 655 stone formers (SF) and 1965 propensity score-matched controls between 2005 and 2011. The controls, from a health-screening program, did not have a history of dyslipidemia or statin use and have any evidence of stone disease, as determined by abdominal radiography, ultrasonography examination. Propensity score-matching with respect to age, sex, and body mass index was used to minimize selection bias, and the logistic regression analysis was adjusted for other components of metabolic syndrome. Results: Compared with controls, the SF group had significantly higher mean triglyceride and lower total cholesterol, low-density lipoprotein (LDL) cholesterol, and high-density lipoprotein (HDL) cholesterol levels (each P < 0.001). The SF group was also more likely to have hypertriglyceridemia and low HDL-cholesterolemia, and less likely to have hypercholesterolemia and high LDL cholesterolemia compared with controls (each P< 0.05). When adjusted for other components of metabolic syndrome including obesity, presence of diabetes mellitus or hypertension, the odds ratio (OR) for urinary stones appeared with hypercholesterolemia (OR= 0.747, P = 0.003), hypertriglyceridemia (OR= 1.901, P < 0.001), low HDL cholesterolemia (OR= 1.886, P < 0.001) and high LDL cholesterolemia (OR= 0.610, P < 0.001). Conclusions: Our study implies that dyslipidemia may play a crucial part in urinary stone risk.</P>
( Sang Soo Kang ),( Jeong Keun Choi ),( Il Seok Kim ),( Yeong Joon Yoon ),( Keun Man Shin ) 대한마취과학회 2010 Korean Journal of Anesthesiology Vol.59 No.4
Acute mesenteric ischemia and infarction is an emergent situation associated with high mortality, commonly due to emboli or thrombosis of the mesenteric arteries. Embolism to the mesenteric arteries is most frequently due to a dislodged thrombus from the left atrium, left ventricle, or cardiac valves. We report a case of 70-year-old female patient with an acute small bowel infarction due to a mesenteric artery embolism dislodged from a left atrial appendage detected by intraoperative transesophageal echocardiography and followed by anticoagulation therapy. (Korean J Anesthesiol 2010; 59: 279-282)
Kang, Hio Chung,Kim, Il-Jin,Park, Jae-Hyun,Shin, Yong,Jang, Sang-Geun,Ahn, Sun-A,Park, Hye-Won,Lim, Sun-Kyung,Oh, Seung Keun,Kim, Dae Jung,Lee, Kwan Woo,Choi, Young-Sik,Park, Young Joo,Lee, Min Ro,Kim National Hellenic Research Foundation 2005 ONCOLOGY REPORTS Vol.14 No.4
<P>Von Hippel-Lindau (VHL) disease is an autosomal dominant inherited tumor syndrome associated with germline mutations in the VHL gene. VHL disease, as well as several other cancer syndromes, has been associated with an increased risk of pheochromocytomas, which are catecholamine-secreting tumors of the adrenal gland. VHL disease genotype-phenotype correlations have been well established based on the type of mutations in the VHL gene. However, although many groups have reported VHL germline mutations in different countries, no previous report has described VHL gene mutations in VHL disease and/or pheochromocytoma patients in Korea. In this study, we used direct sequencing to investigate VHL germline mutations in Korean patients with VHL disease or pheochromocytomas (11 VHL patients and 3 additional members from 7 families, 2 patients from 1 family with familial pheochromocytoma, and 2 cases of isolated pheochromocytoma). We found a total of 7 VHL germline mutations (6 missense and 1 frameshift), 3 of which were novel (323_324delGC, 355T>C and 361G>A). No VHL germline mutation was found in the 2 patients with isolated pheochromocytomas and paragangliomas. This study provides informative data for VHL germline mutations and VHL-related phenotypes in Korea.</P>
Kang Sung Keun,Kim Bong Kyun,Sun Woo Young,Lee Jina 대한외과초음파학회 2020 대한외과초음파학회지 Vol.7 No.2
Purpose: The main aim of this study was to determine if preoperative ultrasonography (US) of thyroid cancer can predict a pathologic invasion over the thyroid capsule and be used as an indicator in deciding the range of thyroidectomy. Methods: A retrospective analysis was conducted on 408 patients who underwent a total thyroidectomy due to thyroid cancer. Among 408 patients, 254 patients showed pathologic capsular invasion, and 154 did not. The patients were categorized into three groups according to the relationship between the tumor and thyroid capsule shown in preoperative US. The clinical, sonographic, and pathologic data from each group were analyzed. Results: The accuracy of preoperative US to predict pathologic capsular invasion by measuring the relationship between the thyroid capsule and cancer mass showed a sensitivity of 0.71, specificity of 0.55, and positive predictive value (PPV) of 0.72. On the other hand, the negative predictive value (NPV) was 0.53. Patients with pathologic capsule invasion showed a significant difference in cancer mass size and total harvested lymph nodes postoperatively compared to those without a capsule invasion. Multivariate analysis to determine the factors affecting the relapse of thyroid cancer after surgery, including clinical, sonography, and pathologic features, showed no significant difference except for female gender. Conclusion: A preoperative US examination on its own is not enough to determine pathologic capsular invasion.