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고충석 제주대학교 1984 논문집 Vol.18 No.2
The purpose of this article is to analize some aspects of the ideological orientation of workers' self-management system in Yugoslavia. From the viewpoint of Marxism, the system has accomplished what Marx means by socialization of production-means and self-determination free producer while, on the other hand, from the viewpoint of the proponents of an industrial democracy, the system is judged to be orientated toward equalization of power relations in organization.
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(-)-엔도-(1R, 3R, 5S)-1.3-디메틸-2.9-디옥아비시클로[3, 3, 1]노난의 합성
강석구,박충실 성균관대학교 1991 論文集 Vol.42 No.1
Ambrosia beetle Trypodendron lineatum Oliv의 기생 숙주 물질인 (-)-엔도-(1R, 3R, 5S)-1.3-디메틸-2.9-디옥아비시클로[3, 3, 1]노난을 O-크실로스를 출발물질로 하여 거울상 특이성이 있게 합성하였다. (-)-Endo-(1R, 3R, 5S)-1,3-dimethyl-2,9-dioxabicyclo[3, 3, 1] Noane, a host specific substance for the ambrosia beetle Trypodendron lineatum oliv., was Synthesized enantiospecifically starting from O-Xylose.
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민춘기,염동삼,현광석 忠南大學校體育科學硏究所 2001 體育科學硏究誌 Vol.19 No.1
The Purpose of this study was to investigate the effects of program for improving blood lipid level. This study employed 36 healthy older people who were 60∼65 years old(mean age 62.5years). The subjects were randomly assigned to one of three groups (two experimental groups and one control). Each group ended up with 12 subjects. The subjects in the utilized the 3×4 factorial ANOVA repeated measure design. The results of the study were as follows: 1. There were statistically significant difference between the HDL-C means of the control group and the two experimental groups. 2. The total cholesterol(TC), triglyceride(TG) are meaned among the control group and the experimental groups show statistically significant differences.
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스테인리스 鋼纖維 强化알루미늄 基地金屬 複合材料의 界面反應에 관하여
金錫胤,南勝義,朴忠河,玄昌容 弘益大學校 1987 弘大論叢 Vol.19 No.2
This study is based an the reaction of the Interface stainless steel and aluminium to which specific elements were added. The aluminium and aluminium alloy which had been reinforced with stainless steel fiber was made by the liquid infiltration method an the researchs. When the composite material was made, cobalt was appeared but the other elements didn't appear at the interface. In the microscopic examination, the thickness of each Interface didn't change and the diameter of the fiber was reduced. Most of the composite material had been higher strength than theoretical value, which establishs the fact that the Interface cohesion is good when the composite materials are made.
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第3世界에 대한 소련의 共産化 戰略 : 民族主義革命을 中心으로
고충석 평범서당 1995 승공논문집 Vol.2 No.-
第三世界에 대한 소련의 共産化戰略은 統一戰線 形成에 의한 쿠데타라고 하는 레닌(Lenin)의 革命戰略 理論에 그 起源을 찾을 수 있다. 이런 의미에서 第三世界에 대한 소련의 共産化戰略의 起源을 레닌의 論文인 〈左翼小兒病〉, 그 중에서도 〈英國의 左翼共産主義〉를 中心으로 分析했다. 여기에서는 이 以外에도 統一戰線에 관한 일반적인 考案이 加味되었다. 다음에는 第三世界에 대한 소련의 이데올로기 體系를 다루었다. 왜냐하면, 共産主義運動에 있어서 이데올로기란, 戰略의 기초가 되는 認識體系이기 때문에, 이데올로기에 대한 硏究는 必須的이라고 할 수 있다. 여기에서는 東西鬪爭의 現段階에서 아시아, 아프리카, 라틴 아메리카의 低開發國家들의 共産化를 위해서 소련이 내놓은 民族民主主義 革命理論을 中心으로 分析했다.
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CT performance phantom을 이용한 cone beam형 전산화단층영상의 특성
한충완,김규태,최용석,황의환 대한구강악안면방사선학회 2007 Imaging Science in Dentistry Vol.37 No.3
Purpose : To evaluate the characteristics of (widely used) cone beam computed tomography (CBCT) images. Materials and Methods : Images were obtained with CT performance phantoms (The American Association of Physicists in Medicine; AAPM). CT phantom as the destination by using PSR 9000N™ dental CT system (Asahi Roentgen Ind. Co., Ltd., Japan) and i-CAT CBCT (Imaging Science International Inc., USA) that have different kinds of detectors and field of view, and compared these images with the CT number for linear attenuation, contrast resolution, and spatial resolution. Results : CT number of both PSR 9000N™ dental CT system and i-CAT CBCT did not conform to the base value of CT performance phantom. The contrast of i-CAT CBCT is higher than that of PSR 9000N™ dental CT system. Both contrasts were increased according to thickness of cross section. Spatial resolution and shapes of reappearance was possible up to 0.6 mm in PSR 9000N™ dental CT system and up to 1.0 mm in i-CAT CBCT. Low contrast resolution in region of low contrast sensitivity revealed low level at PSR 9000N™ dental CT system and i-CAT CBCT. Conclusion : CBCT images revealed higher spatial resolution, however, contrast resolution in region of low contrast sensitivity was the inferiority of image characteristics.
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인체 B 림프구 활성화의 신호전달과정에서 IL-4 수용체와 CD40 분자간의 상호작용
이충은,윤석란,변광호 大韓免疫學會 1995 大韓免疫學會誌 Vol.17 No.3
Stimulation of B cells through CD40 antigen has been reported to agument the interleukin-4(IL-4)induced B cell proliferation and differentiation. In order to elucidate mechanisms underlying the synergistic action, we examined the effect of CD40-mediated signal on the IL-4-induced B cell activation. Treatment of dense, resting tonsillar B cells with agonistic anti-CD40 mAb caused a noticeable induction of IL-4 receptor(IL-4R) mRNA expression within hours, which was followed by a significant enhancement of the IL-4-induced surface IL-4R and CD23 expression, suggesting a role of CD40 in amplifying the IL-4-induced signal. Signal interplay between the IL-4 and the CD40 system was further supported by the observation that, in tonsillar B cells, IL-4 plus anti-IgM induced CD40 expression and tyrosine phosphorylation of IL-4R, and that anti-CD40 co-immunoprecipitated the IL-4R and the IL-4R associated tyrosine kinase activity, which implies a possible molecular interaction between IL-4R and CD40. Together these results suggest that there is a cross-talk between CD40-and the IL-4R-mediated signal transduction system during the T cell-dependent B cell activation.
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김충수,신석철,강민희 충남대학교 의과대학 지역사회의학연구소 1995 충남의대잡지 Vol.22 No.2
To evaluate the effect of stress on immunological functions, lymphocyte subpopulation measure by flow cytometry technique, lymphocyte stimulation test using Con A and PHA, and the NK cell activity measure were performed on 12 medical students during test and vacation periods. The results were as follows : 1. The scores of GARS, SAS and SDS were significantly increased during test compared to the vacation periods (P<0.001). 2. There were no differences in the absolute numbers and percentages of the total lymphocyte, B-cell, T-cell, T-cell subset and NK cell between the test and vacation periods. 3. NK cell activities were significantly decreased during the test periods compared to the vacation periods (P<0.001 or P<0.01). 4. Lymphocyte proliferation response by PHA was significantly decreased during test periods compared to the vacation periods (P<0.05). 5. There were no significant correlations between the amount of increase in stress and the amount of decrease in NK cell activity or lymphocyte proliferation response.
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