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( Yunhwan Park ),( Eunyoung Ko ),( Kwangwook Park ),( Changhyun Woo ),( Jaeyoung Kim ),( Sanghun Lee ),( Sanghun Park ),( Yun-a Kim ),( Gyutae Park ),( Jungseok Choi ) 한국축산학회 2022 한국축산학회지 Vol.64 No.1
It is impossible to know the amount of pork primal cut by pig carcass grade which is determined only by carcass weight and backfat thickness in the Korean Pig Carcass System. The aim of this study was to investigate the correlation between the pig carcass grade and the amount of pork primal cut estimated with AutoFom III. A total of 419,321 Landrace, Yorkshire, and Duroc (LYD) pigs were graded with the Korean Pig Carcass Grade System. Amounts of belly, neck, loin, tenderloin, spare ribs, shoulder, and ham were estimated with AutoFom III. Regression equations for seven primal cuts according to each grade were derived. There were significant differences among the three carcass grades due to heteroscedasticity variance (p < 0.0001). Three regression equations were derived from AutoFom III estimation of primal cuts according to carcass grades. The coefficient of determination of the regression equation was 0.941 for grade 1<sup>+</sup>, 0.982 for grade 1, and 0.993 for grade 2. Regression equations obtained from this study are suitable for AutoFom III software, a useful tool for the analysis of each pig carcass grade in the Korean Pig Carcass Grade System. The high reliability of predicting the amount of primal cut with AutoFom III is advantageous for the management of slaughterhouses to optimize their product sorting in Korea.
Kwangwook Park,Sooraj Ravindran,주건우,Jung-Wook Min,Seokjin Kang,명노성,Sang-Youp Yim,조용륜,김봉중,Yong-Tak Lee 한국물리학회 2016 Current Applied Physics Vol.16 No.12
GaAs/GaInAs multiple-quantum-well (MQW) shells having different GaInAs shell width formed on the surface of self-catalyzed GaAs core nanowires (NWs) are grown on (100) Si substrate using molecular beam epitaxy. The photoluminescence emission from GaAs/GaInAs MQW shells and the carrier lifetime could be varied by changing the width of GaInAs shell. Time-resolved photoluminescence measurements showed that the carrier lifetime had a fast and slow decay owing to the mixing of wurtzite and zincblende structures of the NWs. Furthermore, strain relaxation caused the carrier lifetime to decrease beyond a certain thickness of GaInAs quantum well shells.
Clinical Significance of Decompressive Craniectomy Surface Area and Side
Jo, KwangWook,Joo, Won Il,Yoo, Do Sung,Park, Hae-Kwan The Korean Neurosurgical Society 2021 Journal of Korean neurosurgical society Vol.64 No.2
Objective : Decompressive craniectomy (DC) can partially remove the unyielding skull vault and make affordable space for the expansion of swelling brain contents. The objective of this study was to compare clinical outcome according to DC surface area (DC area) and side. Methods : A total of 324 patients underwent different surgical methods (unilateral DC, 212 cases and bilateral DC, 112 cases) were included in this retrospective analysis. Their mean age was 53.4±16.6 years (median, 54 years). Neurological outcome (Glasgow outcome scale), ventricular intracranial pressure (ICP), and midline shift change (preoperative minus postoperative) were compared according to surgical methods and total DC area, DC surface removal rate (DC%) and side. Results : DC surgery was effective for ICP decrease (32.3±16.7 mmHg vs. 19.2±13.4 mmHg, p<0.001) and midline shift change (12.5±7.6 mm vs. 7.8±6.9 mm, p<0.001). The bilateral DC group showed larger total DC area (125.1±27.8 ㎠ for unilateral vs. 198.2±43.0 ㎠ for bilateral, p<0.001). Clinical outcomes were nonsignificant according to surgical side (favorable outcome, p=0.173 and mortality, p=0.470), significantly better when total DC area was over 160 ㎠ and DC% was 46% (p=0.020 and p=0.037, respectively). Conclusion : DC surgery is effective in decrease the elevated ICP, decrease the midline shift and improve the clinical outcome in massive brain swelling patient. Total DC area and removal rate was larger in bilateral DC than unilateral DC but clinical outcome was not influenced by DC side. DC area more than 160 ㎠ and DC surface removal rate more than 46% were more important than DC side.
Kim, Kwangwook,Sohn, Hosung,Kim, Jong‐,Seok,Choi, Han‐,Gyu,Byun, Eui‐,Hong,Lee, Kang‐,In,Shin, Sung Jae,Song, Chang‐,Hwa,Park, Jeong‐,Kyu,Kim, Hwa‐,Jung Blackwell Publishing Ltd 2012 Immunology Vol.136 No.2
<P><B>Summary</B></P><P>Mycobacterial proteins interact with host macrophages and modulate their functions and cytokine gene expression profile. The protein Rv0652 is abundant in culture filtrates of <I>Mycobacterium tuberculosis</I> K‐strain, which belongs to the Beijing family, compared with levels in the H37Rv and CDC1551 strains. Rv0652 induces strong antibody responses in patients with active tuberculosis. We investigated pro‐inflammatory cytokine production induced by Rv0652 in murine macrophages and the roles of signalling pathways. In RAW264.7 cells and bone marrow‐derived macrophages, recombinant Rv0652 induced predominantly tumour necrosis factor (TNF) and monocyte chemoattractant protein (MCP)‐1 production, which was dependent on mitogen‐activated protein kinases and nuclear factor‐κB. Specific signalling pathway inhibitors revealed that the extracellular signal‐regulated kinase 1/2 (ERK1/2), p38 and phosphatidylinositol 3‐kinase (PI3K) pathways were essential for Rv0652‐induced TNF production, whereas the ERK1/2 and PI3K pathways, but not the p38 pathway, were critical for MCP‐1 production in macrophages. Rv0652‐stimulated TNF and MCP‐1 secretion by macrophages occurred in a Toll‐like receptor 4‐dependent and MyD88‐dependent manner. In addition, Rv0652 significantly up‐regulated the expression of the mannose receptor, CD80, CD86 and MHC class II molecules. These results suggest that Rv0652 can induce a protective immunity against <I>M.?tuberculosis</I> through the macrophage activation.</P>
유방암 환자에서 항암 치료 중 생긴 체중 변화와 재발과의 상관 관계
서광욱(Kwangwook Seo),조현진(Hyunjin Cho),안훈(Hoon An),박인석(Insuk Park),곽금희(Geumhee Gwak),양근호(Keunho Yang),배병노(Byungnoe Bae),김기환(Kihwan Kim) 대한종양외과학회 2013 Korean Journal of Clinical Oncology Vol.9 No.2
Purpose: Weight change during chemotherapy is reported to be associated with a worse prognosis in breast cancer. Our study was aimed to evaluate the relation of weight change during AC (anthracycline+cyclophosphamide) +taxanes chemotherapy and recurrence. Methods: Patients included 89 women diagnosed with breast cancer who have been treated by AC+taxenes chemotherapy regimen. The weight variation between prechemotherapy and postchemotherapy was calculated ([weight at postchemotherapy-weight at prechemotherapy]/weight at prechemotherapy×100) and categorized into either weight change (≥5%) or stable (<5%). And then, we evaluated the relation of weight change and recurrence through the radiologic image tests (positron emission tomography-computed tomography, breast sonography, mammography, bone scan, magnetic resonance imaging, abdomino-pelvic computed tomography) each group. Results: During chemotherapy, 37of total 89 patients (41.6%) presented notable weight change and 52 patients (58.4%) were not weight change. Median follow-up period was 45.1 months, 17 of total 89 patients (19.1%) presented recurrence on the radiologic image tests. Eight of 17 recurrence patients were presented notable weight change, 9 patients were not weight change. In univariate analyses, weight change was not associated with recurrence. Conclusion: In our study, weight change during AC+taxanes chemotherapy in breast cancer was not associated with recurrence. Many studies that relation of weight change and recurrence were presented various result. So, we need more clinical studies many patients included and well designed.