工業敎育大學의 實驗實習施設 共同活用 및 運營에 關한 硏究

尹錫天,牟相榮,權五憲,千炳善,周赫鍾,李永臣,金健中,羅聲雄,洪錫雨,吳德成,盧泰天 충남대학교 공업교육연구소 1983 論文集 Vol.6 No.2(A)

The College of Engineering was specialized to have a sole function for supplying technical high school teachers in 1977 and referred to as the College of Industrial Education according to the Government's policy. The economic impact mainly due to the oil-crises caused a severe problem to this college, namely discrepancy of supply to demand scale. Accordingly the number of student enrollment was to be fluctuated from 479 in 1979 through 800 in 1979 and 900 in 1980 to 430 in 1981. And the engineering departments have been attached to this Engineering Education College since 1981. These circumstanses met singnificant inefficiency in facility operation. This program aims at providing an overall relocation of the college facilities and preparing the practical system to make the joint-operation possible taking into account circulation, academic stream, budget, maintenance, etc. However this study could not get optimal spacing but some trade-off, considering the current situation.

HUVEC 세포에서 MMP-2 의 분비에 미치는 성장인자의 효과

오인숙,박종완,소상섭 全北大學校 科學敎育硏究所 2000 과학과 과학교육 논문지 Vol.25 No.-

Vascular endothelial cells release proteinase that degrade the extracellular matrix, thus enabling cell migration during angiogenesis and vasculogenesis. Endothelial cells secrete mainly the proform of matrix rnetalloproteinase-2. Matrix metalloproteinase-2 is Zn^2+ dependent protease produced by a variety of cell types. They have a fundamental role in tissue remodelling, tumour invasion and metastasis. The purpose of this study was to test if growth factors, such as angiopoietin-1, bFGF and VEGF can regulate the secretion of MMPs by endothelial cells. Of these growth factors, we found that VEGF is the strongest inducer of MMP-2 secretion. Both angiopoietin-1 and bFGF also induced the secretion of the MMP-2. VEGF induced MMP-2 secretion in a time- and dose-dependent manner. Pretreatment with phosphatidylinositol 3'-kinase inhibitors had no effect. NF-kB inhibitor, PDTC changed significantly the level of MMP-2 secretion from the cell. These results indicate that MMP-2 stimulates normal cell proliferation, wound healing and tissue remodelling in endothelial cells.

K-WISC-Ⅲ에 나타난 ADHD 아동의 지능특성

오상우,백영석,강상현 圓光大學校 醫科學硏究所 2008 圓光醫科學 Vol.23 No.1

연구배경: 본 연구의 목적은 K-WISC-III에서 ADHD 아동들의 지능특성이 어떻게 나타나는지를 알아보는 것이다. 연구방법: ADHD로 진단받은 아동 105명이 검사를 받았다. K-WISC-III를 이용한 심리검사가 모든 아동에게 이루어졌다. 그 결과로부터 나온 모든 자료는 군집분석 및 일원변량분석을 통해 분석하였다. 연구결과: 그 결과 군집분석 결과 K-WISC-III 프로파일은 3개의 군집으로 분류되었다. 세 군집들 간의 평균 점수를 변량분석한 결과 K-WISC-III의 소검사 환산점수, 지표지수 및 지능지수 모두 유의미한 차이가 있는 것으로 나타났다. 세 군집 각각 언어성 IQ와 동작성 IQ 간에는 유의미한 차이가 없었다. 군집 1은 전체지능이 평균수준으로 나타났고, 군집 2는 평균하수준으로 나타났으며, 군집 3은 정신지체 수준인 것으로 나타났다. 결론: 본 연구 결과, ADHD 아동의 K-WISC-III 프로파일 유형이 3가지 군집 유형으로 분류될 수 있음을 확인할 수 있었다. 이러한 결과는 ADHD 집단이 매우 이질적인 집단으로 이루어져 있다는 것을 시사하는 결과이다. Background: The purpose of this study was to find intelligence characteristics of children with attention deficit hyperactivity disorder(ADHD) on the Korean Wechsler Intelligence Scale for Children-Third Edition(K-WISC-III). Methods: Children who were diagnosed as ADHD(N=105) was tested. Psychological test with K-WISC-III was applied to all children. The raw data from the results were analyzed statistically by cluster analysis and one-way ANOVA. Results: The results were as follows. K-WISC-III profile type was classified into three clusters. The comparison of subscales, index quotient(VC, PO, FD, PS) and intelligence quotient(VIQ, PIQ, FIQ) in K-WISC-III among three clusters showed significant differences. There was no significant difference among each three clusters in VIQ and PIQ. Ouster 1 showed average level in FIQ. Cluster 2 showed low average level. Finally, cluster 3 showed mentally deficient level. Conclusion: These results showed that children with ADHD consist of heterogeneous group. Taken together, our findings suggested that K-WISC-III profile type of children with ADHD maybe classified into three clusters

Streptococcus oralis 의 인공치태 억제효과에 대한 연구

오종석,정성수,양규호,김선미 大韓小兒齒科學會 1999 大韓小兒齒科學會誌 Vol.26 No.1

이 연구는 치아우식증이 주요 원인균인 Streptococcus mutans의 치태형성과 증식에 대한 Streptococcus oralis의 영향을 조사하고자 하였다. 이를 위해 S.mutans와 S.oralis 혼합 배양후 형성된 치태 무게와 생균수를 측정비교하였다. 또한 치태형성과 생균수에 영향을 미치는 요소들에 대해 조사하여 다음과 같은 결과를 얻었다. 1. S.mutans와 S.oralis의 혼합배양시 S.mutans 단독배양에 비해 치태무게와 생균수가 감소되었다. 2. S.mutans 단독배양에 10 mM의 표도당을 첨가한 군은 첨가하지 않은 군보다 치태무게가 증가되었으나,S.mutans와 S.oralis의 혼합배양에 10 mM의 포도당을 첨가한 군은 첨가하지 않은 군과 차이가 없었다. 3. S.mutans 단독배양에 10 mM S.mutans와 S.oralis 10 mM의 과당을 첨가한 군도 첨가하지 않은 군보다 치태무게가 증가되었다. 4. S.mutans와 S.oralis의 혼합농도를 달리하여 배양했을때 S.oralis의 혼합농도가 높아질수록 치태무게와 생균수는 감소되었다. 5. 배양기산(6,9,12,15시간)에 따른 치태무게와 생균수는 S.mutans단독배양에 비해 S.mutans와 S.oralis혼합배양시 배양 12시간 이후 급격히 감소되었다. 6. S.mutans와 S.oralis의 혼합배양에 H₂O₂를 소비하는 Staphylococcus epidermidis를 첨가한 군은 첨가히자 않은 군보다 치태무게와 생균수가 증가되었다. 이상의 결과로 S.oralis는 S.mutans와 혼합배양시 S.mutans의 증식과 인공치태의 생성을 억제함을 알 수 있었고, 이는 S.oralis가 H₂O₂를 분비함으로써 얻어진 결과임이 시사되었다. This study was performed to evaluate the effect of Streptococcus oralis on the formation of artificial plaque and the replication of Streptococcus mutans.S.mutans was incubated alone and in the combination with S.oralis in the beaker with wires. The produced plaque weight and the viable cells of S.mutans were compared between those cultures. Various factors were studied about the effect on the formation of plaque and the replication of S.mutans. Followings are the results. 1. Lower amount of plaque was produced and fewer cells of S. mutans were replicated at the mixed culture of S. mutans and S. oralis than S. mutans alone. 2. When 10 mM glucose was added, the plaque weight was increased in the culture of S. mutans alone. But in the mixed culture of S. mutans and S. oralis, the plaque weight was not increased when 10mM of glucose was added. 3. When 10 mM fructose was added, the plaque weight was increased in culture of S. mutans alone or combined S. mutans and S. oralis. 4. In the mixed culture of S.mutans and S. oralis with different concentration, the more S.oralis exist, the less plaque and the fewer viable cells of S. mutans were observed. 5. The plaque weight and the viable cells of S.mutans were more decreased in the mixed culture of S. mutans and S. oralis than S. mutans alone after 12 hours. 6. When Staphylococcus epidermidis consuming hydrogen peroxide was added to the mixed culture of S. mutans and S. oralis, the plaque weight and the viable cells of S. mutans were increased. These results indicate that S. oralis inhibited the formation of plaque and the replication of S. mutans,and this may result from the formation of hydrogen peroxide by S. oralis.

交通事故 特性과 發生地點의 類型化에 관한 硏究

오석기,고상선 東亞大學校 大學院 1996 大學院論文集 Vol.21 No.-

Traffic is very important function in metropolitan areas. Traffic problems in metropolitan areas are such social problems as traffic congeston, parking and tarffic accidents. Among them, the traffic accident is the only one that is related with hyman life. This study employs the principal component analysis and stepwise multiple regression analysis to estimate the characteristics and influential factors of traffic accident in the view-point of hyman, and to defining the typical patterns of happening lots of traffic accidents.

브랜딩 아로마 에센셜오일의 항스트레스효과에 대한 실험연구

오홍근,최진영,전겸구,이준석,박동기,최성돈,전태일,김미경,김석범 한국정신과학학회 2001 한국정신과학회 학술대회 논문집 Vol.14 No.-

Objectives: This study was performed to evaluate the antistress effects of two aromatic blends being composed of synergic essential oils and also to differentiate its effectiveness between two. Methods: The subject were 20(10 for men, 10 for women) for vital factors and another 20(10 for mem, 10 for women) for serum catecholamine. Vital factors(blood pressure, pulse), electroencephalograpy, psychological tests(SACL, STAI) and serum catecholamine were applied to the subjects. Results: 1. All two aromatic synergic blends revealed no significant differnce of vital factors after inhalation but stable conditions generally by lowering pulse and blood pressure after inhalation. 2. Both blends were significantly valuable in antianxiety and antistress effects statistically. There were no statistically difference between two blends. 3. There were no significant difference in all brain waves after inhalation of two blends but generally stable brain waves were seen in all areas. 4. There were antistress effects of both blends in accordance of decreased serum catecholamines after inhalation of both blends. There were no significantly difference between two blends statistically. Conclusion: Both two aromatic synergic blends reached effective antistress and antianxiety states after inhalation of each blends. There were no siginificant difference between two blends. Further studies about the effectiveness between the amount of aromatic essential oils and the duration of inhalation should be considered. Also clinical applications of these two aromatic synergic blending oils to develop the aromatic products would be affordable in the future.

K-WISC-Ⅲ의 요인구조 분석 : 소아정신과 내원 환자를 중심으로

오상우,백영석 圓光大學校 醫科學硏究所 2005 圓光醫科學 Vol.20 No.2

식품 중의 아크릴아마이드

오상석,김혜영,박재영 이화여자대학교 생활환경대학 인간생활환경연구소 2004 인간생활환경연구소 논집 Vol.- No.2

Swedish National Food Administration reported that acrylamide was detected in heat treated starch rich food products in April.2002. Acrylamide is considered as potential carcinogen and genotoxicant. It is noticed that formation of acrylamide in potato products was greater than other food products. It may be due to high concentration of asparagine and glucose in potato products comparing to that of other food products resulting in Maillard reaction during heat treatment. Research on acrylamide formation during food processing has been hot issue among other research groups. In this study, general issues on acrylamide in food products including risk assessment, mechanism, toxicity, anallfical method and reduction are discussed.

복싱선수의 운동수행능력 수준에 따른 정신력요인 분석

오인석,채성배,이창섭 忠南大學校體育科學硏究所 1995 體育科學硏究誌 Vol.13 No.1

The purpose of this study was to identify the relationship between mental toughness and the level of performance and playing experience in boxing players. Subjects were 138 boxing players of high schools and colleges in Korea. Mental Toughness Test was used which was developed by Loehr(1982). The analysis of data was conducted by using One-Way ANOVA and Scheffe's test. The results were as follows; 1. With regard to the performance level, the mental toughness showed a significant difference in the factors of Arousal Control, Attention Control, Visualization and Imagery Control, and Attitude Control. 2. With regard to the years of playing experience, the mental toughness showed a significant difference in the factors of Arousal Control and Attention Control.

電子式 船荷證券의 問題點에 관한 一考察

吳元奭,韓成一 동아대학교 경영대학 1992 經營硏究 Vol.- No.6

The purpose of this study is to examine the expected legal problems when a current bill of lading as a paper document is replaced by a electronic bill of lading in the near future. Our law and international rules or conventions about ED1 message, international transportation and payment are used as the tools of this analysis. Problems may be divided into three catagolies ;evidential issues, negotiability and key station. Furthermore the evidential issues can be classified into the admissibility in court authentification and formal problems. I tried to find any legal obstacles for these problems in common law and civil law jurisdiction. Electronic bill of lading has been proved not to be inconsistent with both jurisdictions. New international rules regarding EDI message and the liability of parties in operating electronic message have been almost enacted to meet above problems. What is important now is a general recognition for the necessity of commercial use in practice, for which a sea waybill may be used for the time being. Traders, who wish to use the electronic bill of lading in practice, would be advisable to insert a concrete clause in their contracts to eliminate any legal problems until both parties can fully understand the complex local and international rules and legal systems.