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Metachronous liver metastasis after curative gastrectomy for gastric adenocarcinoma
Suk-Hyun Shin(신석현),Jong Man Kim(김종만),Su Mi Kim(김수미),Min-Gew Choi(최민규),Choon Hyuck David Kwon(권준혁),Jae-Won Joh(조재원),Sung Kim(김성),Suk-Koo Lee(이석구),Cheol Keun Park(박철근) 대한종양외과학회 2014 Korean Journal of Clinical Oncology Vol.10 No.2
지방자치단체 지방의료원의 운영 활성화를 위한 실증적 연구
이신석(Shin-Suk Lee),박상무(Sang-Moo Park),심문보(Moon-Bo Sim) 한국콘텐츠학회 2012 한국콘텐츠학회논문지 Vol.12 No.10
지방의료원의 공공의료 활성화를 위하여 공공의료 본래의 공공성에 대한 고찰과 지방의료원의 현 실태를 파악하고 선행연구 분석과 연구자의 경험을 바탕으로 정책적 요인, 환경적 요인, 재정적 요인, 그리고 자생적 요인이 지방의료원의 활성화에 영향을 미친다고 가정하여 충남 4개 지방의료원을 대상으로 설문을 실시하고 실증 분석을 통해 4가지 요인과 40가지 하위 변수들과의 관계를 밝히고 가설을 검증하였다. 실증적 분석으로서 배경요소를 제시하여 가설 및 연구 모형의 설정, 연구집단 및 분석 방법의 설정, 요인분석 및 신뢰·타당도 분석을 실시하고, 윈도우 7 운영체제의 SPSS 19.0을 분석도구로 지방의료원의 활성화 요인과 변수와의 관계를 조사하였으며, PLS 2.0을 분석도구로 모형분석을 통해 가설을 검증하였다. Regional medical center, this countrys public health researchers to activate discussion about public health nature of publicness and Regional medical center to identify actual conditions of the present analysis of previous studies based on the experience of researchers and policy factors, environmental factors, financial factors, and self-sustaining factors affecting the activation of the public health by assuming that the four provinces, Chungnam Regional Medical Center conducted the survey to target four factors through empirical analysis and 40 kinds of relationships with sub-variables hypothesis. To empirical analysis as a background element present hypotheses and research model setting, study population and method of analysis of the set, factor analysis and reliability, validity analysis conducted, and Windows 7 operating system SPSS 19.0 analysis tool for Regional Medical Center enable the public health was to investigate the relationship between factors and variables, PLS 2.0 as an analytical tool to test the hypothesis through the analysis of the model was used.
참외추출물이 스코폴라민 유도 기억상실 흰쥐의 인지능 회복에 미치는 효과
박상신(Sang-Shin Park),박나오미(Naomi Park),강주억(Ju-Uk Kang),신석철(Suk-Chul Shin),이동웅(Dong-Ung Lee) 한국생명과학회 2009 생명과학회지 Vol.19 No.5
The methanol extract of muskmelon (Cucumis melo) has been investigated for its cognition enhancing effects by evaluation of inhibitory activities on acetylcholinesterase, a degrading enzyme of acetylcholine, a brain neurotransmitter, and β-secretase, which forms the β-amyloid toxic protein from its precursor protein. A passive avoidance task, one of the animal model experiments for learning and memory, was also performed. As a result, the melon extract showed 15.8% and 35.3% inhibition on acetylcholinesterase and β-secretase, respectively, with a final concentration of 100 ㎎/ml. In the animal model test, melon extract significantly (p<0.05) lengthened the step-through latency time by 22.7% compared to the control group, suggesting that melon extract has, indeed, an effect on cognition enhancement.
최소자승법 기법을 이용한 베어링 동특성 추출을 위한 연구
이경민(Kyung-Min Lee),박신석(Shin-Suk Park),이용복(Yong-Bok Lee) 한국트라이볼로지학회 2009 한국트라이볼로지학회 학술대회 Vol.2009 No.11
The efficiency and reliability of the earing performance is important for rotating system. In this study, dynamics characteristics of air foil bearing and hybrid bearing compare the changing rotating speed. Numerical predictions of air foil bearing compare the dynamic force performance, hybrid bearing analyses of bearing are performed by FEM method. The hybrid bearing of control is PID control. The air foil bearing and hybrid bearing compare the dynamic characteristics of the hybrid bearing higher than value of the damping effect.