삼요오드화 3,5-디아릴-1,2,4-디지아졸륨과 히드라진과의 반응에 관한 반응속도론적 연구

박문환,김창석,홍순영,Moon-Hwan Park,Chang-Suk Kim,Soon-Yung Hong 대한화학회 1985 대한화학회지 Vol.29 No.4

7-종류의 m-또는 p-페닐환 치환 3,5-diphenyl 1,2,4-dithiazolium triodide와 과량의 히드라진을 피리딘 용매하에서 반응시켜 유사 1차 반응속도 상수를 자외선 분광분석법으로 구하였다. 이 반응에 수반하는 몇가지 파라미터를 산출하고 반응속도에 미치는 치환기의 효과를 조사하였으며 반응생성물의 구조를 확인하였다. 이 반응은 전자 끄는기에 의하여 촉진되고 Hammett rule에 잘 따랐다. 이와 같은 반응속도론적 결과를 이용하여 이 반응의 메카니즘을 제시하였다. Pseudo first-order rate constants for reactions of seven m- or p- phenyl-ring substituted 3,5-diphenyl 1,2,4-dithiazolium triodides with hydrazine in excess, in pyridine, were determined by a UV spectrophotometry. For these reactions, calculated some activation parameters, identified the reaction products, and investigated the effect of substituent on the reaction rate. These reactions were accelerated by electron-withdrawing substituents and obeyed the Hammett rule. From the observed kinetics, a reaction mechanism was proposed.

귀리세포 내 피토크롬 작용에 의한 단백질의 탈인산화

박문환,채쾌 ( Moon Hwan Park,Quae Chae ) 생화학분자생물학회 1992 BMB Reports Vol.25 No.1

When the phosphorylation degrees of the two proteins (27 kDa, 32 kDa) in oat cells were examined as a function of red light (660 nm) irradiation time, a slight dephosphorylation (second time scale), phosphorylation 3($lt;2∼3 min) and dephosphorylation ($gt;2∼3 min) were observed, respectively. An inhibition of protein phosphatase was not observed by addition of 10 mM NaF in both cases of dephosphorylation (short and long time irradiations). When we added different concentrations of okadaic acid (1 nM, 15 nM and 1 μM) into the cell, the inhibition effect was only observed at its concentration of 1 μM in either cases (short and long time irradiations). These results suggest that protein phosphatase may be involved in the phytochrome-mediated dephosphorylations and the kind of phosphatase might be PP 2B (calcineurin).

스포츠 클라이밍을 활용한 비행 청소년의 선도 효과

박문환(Moon Hwan Park) 한국사회체육학회 2006 한국사회체육학회지 Vol.0 No.27

WBI를 위한 동적 학습공간 모델

박문환(Moon-Hwan Park),남지은(Ji-Yeun Nam),홍현술(Hyeun-Sool Hong),한성국(Sung-Kook Han) 한국정보과학회 2000 한국정보과학회 학술발표논문집 Vol.27 No.1B

WBI는 시간과 공간의 제약 없이 다양한 교수 전략의 구사와 실감나는 교육매체의 활용을 가능하게 하여, 교사-학습자 또는 학습자-학습자 상호간의 교육 교육효과를 증진시킬 수 있는 환경을 제공한다. 그러나 WBI는 하이퍼텍스트의 링크로 연결된 일차원적 가상공간에 실시되므로 학습자의 인지적 부하를 가중시키고 학습방향 상실의 문제점을 야기시킨다. 따라서 본 논문에서는 이러한 문제점들을 해결하기 위하여 동적 학습공간 모델을 제시하고 이를 구현하였다. 동적 학습공간 모델은 전체 학습공간이 투명하게 지도(Hyper-Map) 형태로 나타나고 공간 노드간의 관계가 명확하여, 학습 위치와 내용을 확실하게 파악할 수 있다. 또한 학습공간이 학습자에 의해 자발적으로 구성됨에 따라, 학습자 수준별 열린 학습이 가능하고, 학습 구성 능력을 신장시켜 학습의 주도권을 주체적으로 행사할 수 있도록 하는 창조적 학습 분위기를 조성할 수 있다.

반신욕이 중년 비만 여성들의 신체조성과 혈중지질 변화에 미치는 영향

박문환(Park, Moon-Hwan),강명학(Kang, Myoung-Hak),한길수(Han, Gil-Soo) 한국체육과학회 2013 한국체육과학회지 Vol.22 No.4

The purpose of this study is to investigate the effects of lower-body bathing on the changes in body composition and blood lipid of middle-aged obese women. For this, 32 middle-aged obese women were selected and divided into two groups; the lower-body bathing treatment group (n=16), and the control group just resting with no lower-body bathing (n=16). In order to examine changes in body composition and blood lipid before and after a round of lower-body bathing, the study conducted two-way repeated measures ANOVA and post-analysis using the Scheffe method, and its results are as follows: 1. Regarding the changes in body composition, the lower-body bathing group was found to decrease by 0.12% in BMI, by 4.15% in body fat percentage and by 0.87% in the waist-hip ratio, which shows a statistically significant difference(p<.05). Meanwhile, the control group showed a increase by 0.11% in BMI, by 0.53% in body fat percentage and by 0.21% in the waist-hip ratio respectively, but only BMI was found to increase statistically significantly(p<.05). 2. Concerning the changes in blood lipid, the lower-body bathing group was found to decrease by 3.07% in total cholesterol, by 1.94% in LDL-cholesterol and by 7% in triglycerides respectively, which shows a statistically significant difference in total cholesterol and triglycerides(p<.05). In addition, HDL-cholesterol increased by 2.09% and showed a significant difference(p<.05). The control group was found to increase by 1.10% in total cholesterol, by 3.17% in triglycerides and by 0.22% in LDL-cholesterol respectively, but was found to decrease by 0.48% in HDL-cholesterol. In view of the results above, after perfect control factors likely to affect research results such as private life, life habit and eating habit of middle-aged obese women, lower-body bathing treatment was found to be effective in terms of body composition and blood lipid decrease, and it is recommended to promote lower-body bathing as a method of obesity control in the cosmetic treatment field.

직장의 체육 환경과 직무만족의 관계

박문환(Moon Hwan Park) 한국사회체육학회 1995 한국사회체육학회지 Vol.3 No.-

This study is to examine relationship between mass sport environment at workplace and job satisfaction among employees. In order to accomplish such aims, we made a random sampling with the subjects of 1,069 workers, male and female, who are working for the big business groups located in Seoul. The main tool in this study was the questionaire for measuring the effects upon their job satisfaction caused by the activities of sports for all among the workers. The statistics employed the data analysis were Pearson`s Correlation and multiple regression analysis. The major findings of this study were as follow: 1. Mass sport facilities of workplaces has impacts on the every job satisfaction except for general job satisfaction and inernal work motivation among employees. 2. Mass sport club of workplace have impacts on the concrete job satisfaction among employees. 3. Mass sport programs and leaders of workplaces have not impacts on the job satisfaction among employees.

직장인의 라이프 스타일과 스포츠참여경험 및 정도와의 관계

박문환(Moon Hwan Park),이제홍(Jae Hong Lee) 한국사회체육학회 1999 한국사회체육학회지 Vol.12 No.-

The purpose of this study was to examine relationship between life style and participation in sport among employees. More specifically, the study investigated the effect of life style on two aspects of participation in sport among employees: (1) participation experience (2) degrees of participation. Data collected through a questionnaire designed for this study consist of fixed-alternative choice response to items constructed to represent the operational definition for each variable. The inventory was administered to one thousand six hundred and two male and female employees. Life style, independent variable, was consists of ten subfactors: fashion oriented, self-discipline, self-confidence, goal attainment, willingless, nihilism, sport-oriented, brand oriented, optimism, health. Dependent variables of the study consisted of four sub-variables: participation experience of sport, degrees of participation in sport, types of sport events, and flow experience of sport. Statistics employed for data analyses were discriminant analysis, product-momnet correlation, and stepwise multiple regression. Based upon the results of the study, the following conclusions appear warrented : First, lifestyles such as, self-discipline, self-confidence, willingless, sport-oriented, and health had effects on experience of sport participation. Second, lifestyles such as, sport, self-discipline, goal attainment, and nihilism had an influence on frequencies of sport participation, lifestyles such as, sport, self-discipline, goal attainment, nihilism, health, and self-confidence had an influence on duration of sport participation, and lifestyles such as, nihilism, self-discipline, goal attainment, brand-oriented, and sport-oriented had an influence on intensity of mass sport participation.

통합적 체육수업이 중학생의 체육수업몰입에 미치는 영향

박문환(Moon-Hwan Park),우성민(Sung-min Woo),김영식(Young-sik Kim),정진성(Jin-Sung Jung) 학습자중심교과교육학회 2013 학습자중심교과교육연구 Vol.13 No.4

이 연구는 통합적 체육수업이 중학생들의 체육수업몰입에 미치는 영향을 파악하기 위하여 경기도에 소재한 S중학교 2학년 2개 학급 78명을 대상으로 읽기, 쓰기, 보기, 듣기, 그리기, 하기 과정의 수업활동을 적용한 실험집단 39명과 체육교육과정에 맞추어 기능중심 체육수업을 적용한 통제집단 39명의 체육수업몰입에 대한 사전검와 사후검사를 실시한 결과 다음과 같은 결론을 얻었다. 첫째, 성별에 따른 체육수업몰입은 실험집단에서 사전검사 결과 남녀 성별에 대하여 통계적으로 유의미한 차이가 없는 것으로 나타났으나 사후검사 결과 남녀 성별에 대한 통계적 유의미한 차이가 있는 것으로 나타났다. 반면에 통제집단에서는 사전-사후검사 결과 모두 통계적으로 유의미한 차이가 없는 것으로 나타났다. 둘째, 실험집단과 통제집단의 체육수업몰입에 대한 사전-사후 검사를 실시한 결과 실험집단은 사전검사에 비해 사후검사에서 체육수업몰입의 모든 하위영역이 통계적으로 유의미한 차이가 나타났지만 통제집단은 사전-사후검사에서 통계적 유의미한 차이가 나타나지 않았다. 통합적 체육수업은 중학생의 체육수업몰입을 높이는데 효과가 있으며, 통합적 체육활동을 적용한 체육수업이 학생들의 체육수업몰입 경험 증진과 신체활동에 대한 가치의 내면화를 시킬 수 있도록 도와줌으로써 체육수업 개선의 효율적인 방법이 될 수 있음을 시사한다. The purpose of this study was to identify the effects of integrated PE classes on the absorption of middle school students in the class. For the purpose of this study, 78 Grade 2 students in 2 sections in S Middle School in Gyeonggi?do were selected as the subjects. They were divided into two groups such as an experimental group (n=39) that reading, writing, watching, listening and performing class activities were applied and a control group (n=39) that skill centered PE classes were applied according to PC curriculum and both groups were tested before and after the application. Following are the results. First, although there was no statistically significant difference in the absorption of the students in PE lessons according to gender in the experimental group at pretest, there was statistically significant difference according to gender at posttest. On the other hand, there was no statistically significant difference in the absorption of the students in PE lessons according to gender in the control group either in pretest and or in posttest. Second, in the pretest and posttest on the absorption in PE lessons of the experimental group and the control group, experimental group showed statistically significant difference in all sub?areas of the absorption in PE lessons between the pretest and posttest, while the control group did not show any statistically significant difference between pretest and posttest. It suggests that integrated PE lessons are effective to improve the absorption of the students in PE classes, and it can be an efficient way to improve PE by improving the students’ experiences in PE Absorption Classes and by helping the internalization of the value of physical activities.

한중일 3개국의 주니어 배드민턴 선수의 경기 전술 및 득점 패턴의 분석

박문환(Moon Hwan Park),박주봉(Joo Bong Park) 한국사회체육학회 2009 한국사회체육학회지 Vol.0 No.36

유착성 장폐색증 68예에 대한 임상적 고찰

박문환(Moon Hwan Park) 대한외과학회 1976 Annals of Surgical Treatment and Research Vol.18 No.7