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정신분열증과 주요 우울장애에서 Natural Killer Cell 수와 백분율 변화NK cell
윤장봉,이재우,박두병 大韓神經精神醫學會 1996 신경정신의학 Vol.35 No.5
The purpose of this study was to compare the number and percentage of natural killer cell in schizophrenic and major depressive patients with those in normal healthy subjects 15 Schizophrenic patients, 15 major depressive patients and 16 healthy subjects were included in this study There was no statistical difference in the age and sex between patients and control subjects. All of these patients were drug-free for at lest two weeks before this study. The results of this study were as follows : 1) In schizophrenic patients, the number and percentage of natural killer cell of the group with below-mean score of general psychopathology were significantly lower than those of the group with above-mean score(p<.05). The number but not the percentage of natural killer cell of the group with below-mean BPRS score was significantly lower than that of the group with above-mean BPRS score(p<.05). 2) The number of natural killer cell showed statistically negative correlation with generalpsychopathology score or BPRS score(p<0.05). In conclusion, these findings suggest that the number and percentage of natural killer cell is not significantly changed in schizophrenia and major depressive disorder, but in schizophrenic patients, severe psychopathology in the rating scales is associated with suppression of the number and percentage of natural killer cell.
동계레져스포츠 참가자의 생활만족도에 대한 인과모형 분석
장봉우 ( Bong Woo Jang ),이송우 ( Song Woo Lee ),김진배 ( Jin Bae Kim ),이현희 ( Hyun Hee Lee ),오성준 ( Sung Jun Oh ),윤병인 ( Byeong Ln Yun ),윤현노 ( Hyeon No Yun ),동중영 ( Tae Young Jang ),장태영 ( Dam Seok Han ),한담석 한국스포츠심리학회 2008 한국스포츠심리학회지 Vol.19 No.2
본 연구는 동계레져스포츠 참가자의 동계레져스포츠 참가자의 개인적 특성과 배경적 특성이 생활만족도 에 미치는 영향을 파악하고, 운동참가동기와 운동몰입경험 그리고 자기관리의 변인이 생활만족에 미치는 상대적 영향력을 규명하기 위하여 서울시, 대전시, 경기도, 강원도, 충청북도에 소재하고 있는 동계레져스포츠 참여자 790명을 대상으로 하였다. 자료의 표집을 위해 설문지를 사용하였으며 유효 표본으로 수집된 자료는 SPSS version 12.0프로그램을 이용하여 각 요인별 평균, 표준편차를 산출하였고, 신뢰도분석 (reliability) 과 요인분석 (tactor analysis) 을 실시하였으며, 동계레져스포츠 참가자의 생활만족도에 영향을 미치는 요인의 인과모형의 적합성을 알아보기 위하여 Amos version 4, 0 프로그램을 이용하여 다 음과 같은 결론을 도출하였다. 첫째, 성별에 따른 진쳬적인 만족도는 유의한 차이를 보이지 않았으나 스케이트종목과 미혼자 그리고 자영업에서 신체적인 만족의 정도가 높았으며, 휴식적인 만족은 스키종목에서 여성과 기혼자 그리고 50대이상의 전문직종사자가 높았으며, 남자는 스키종목을 통하여 사회활동만족을 가장 많이 느끼는 것으로 나타났다. 둘째, 동계레져스포츠 배경적 특성에서 연중 7회이상 스키장을 방문하는 4년. 5년의 운동경력자가 높은 신체적인 만족을 느끼고 있었으며, 6년이상 운동경력으로 1박2일 동안 가족과 함께 다녀가는 집단에서 휴식적인 만족의 정도가 높게 나타났으며, 중급이상의 스키실력으로 동료와 함께 동계레져스포츠에 참 여하는 집단에서 사회활동 만족을 느끼고 있었다. 셋째, 동계레져스포츠 참가자의 생활만족도에 대한 인과모형 검증에서 초기에 설정된 연구모형의 적합 도를 높이기 위하여 고유행동관리의 변인을 제거하고 참여빈도관리 변인과 건강지향 변인을 공분산 처리하여 적합도 평가기준에 충족하는 연구모형을 제시하였으며, 자기관리요인과 몰입경험요인은 생활만족도에 영향력을 행사하는 매개변인으로 판명되었다. 넷째, 동계레져스포츠 참가자의 생활만족도에 영향을 미치는 운동참가동기의 하위변인은 자기관리요인 에 영향을 주고 있었으며, 운동몰입경험은 신체적인 만족과 휴식적인 만족 그리고 사회활동 만족에 직 접적으로 영향력을 행사하므로 운동몰입경험이 높아질수록 생활만족도가 높게 나타났다. This study, - so as to apprehend the effects of the participants in winter leisure sports` personal and background traits on the life satisfaction and identify the relative influence on the life satisfaction by the vaviables such as the motivation to participate in sports, the experience immersed in those, and the self-regulation-, had the object of 790 participants in winter leisure sports in the city of Seoul and Taejeon and the province of Kyung-gi, Kang-won and Chung-buk. The data as the effective sample collected by the questionnaire made use of the SF55 version 120 program, yielding the average and standard deviation of each factor, and carrying out the reliability and the factor analysis and the Amos version 4.0 program in order to inquire the cause and effect model compatibility of the factors that influence on the life satisfaction of the participants in winter leisure sports. First, as for the physical satisfaction, there was a meaningful differences in the status of the unmarried and the self-employed, and in the event of skate, not in the distinction of sex, in addition, 4 to 5 years` sports experience and over 7 times` sports frequency was the same. Second, the relaxative life satisfaction was in a high level in the female, the married and the professional as well as the age group of over 50. Third, the social activity satisfaction was in a higher level in the sexuality of male and the group of the colleague in the work place. Fourth, the experience immersed in winter leisure sports` participants and the factors of the self-regulation turned out to be an intermediate variable as the results of the direct effects that shows the improvement of the life satisfaction. and elimination of the inherent action management came to satisfy the valuation basis for the suitability in the study model.
윤숭봉,장봉규,정창무 대한국토·도시계획학회 2004 國土計劃 Vol.39 No.1
The purpose of this study is to explain the various value changes of apartment sale price determinants which are affected by the local housing market and housing scale. Therefore we use the granger causality and the hedonic price function to estimated each determinant value of apartment housing price so that we can approve the hypotheses. The results are as follows. First, Stock apartment market influences to new apartment market. Second, the prices of installment sale are influenced by the individual characteristic of large-sized apartments and small ones. Middle-sized units are ,however, changed by the local special variables. With the results of the analyses above, a specific plan classified by the size and price will prevent the vicious circle of rising price presented in its outskirts by overestimating. Futhermore, as the factors which influence the prices by the apartment size are different, even in the same area, dwelling choices are different by the unit sizes. 키 워 드 공간분화, 군집분석, 그랜저 인과검정, 헤도닉 모형Keywords Spatial Separation, Cluster Analysis , Granger Causality, Hedonic Price Model
Simulation of Vehicle Steering Control through Differential Braking
장봉춘,윤여흥,이성철 한국정밀공학회 2004 International Journal of Precision Engineering and Vol.5 No.3
This paper examines the usefulness of a Brake Steer System(BSS), which uses differential brake forces for steering intervention in the context of Intelligent Transportation Systems(ITS). In order to help the car to turn, a yaw moment control was achieved by altering the left/right and front/rear brake distribution. This resulting yaw moment on the vehicle affects lateral position thereby providing a limited steering function. The steering function achieved through BSS was used to control lateral position in an unintended road departure system. A 8-DOF nonlinear vehicle model including STI tire model was validated using the equations of motion of the vehicle. Then a controller was developed. This controller, which is a PID controller tuned by Ziegler-Nichols, is designed to explore BSS feasibility by modifying the brake distribution through the control of the yaw rate of the vehicle.