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흰쥐 척수 손상후 Parvalbumin과 Calbindin D-28K 함유신경세포에 관한 면역세포화학적 연구
김종중,정윤영,임유택,박상수,박영란,김현곤,문정석 조선대학교 부설 의학연구소 2002 The Medical Journal of Chosun University Vol.27 No.2
Background and Objectives: This study was done to compared the distribution of the two calcium-binding proteins immunoreactive neurons, parvalbumin immunoreactiv (PV-IR) and calbindin D-28K immunoreactive (CB-IR) neurons in the spinal cord after transection. Materials and Methods: Twenty rats were divided into 3 groups (control, complete spinal cord injury (SCI), and right and left spinal cord hemisection). SCI was produced by cutting the spinal cord use blades 11 with scalpel handles. Results: In this experiment, CB-IR neurons were mainly found in many pyramidal cells distributed in the brain stem and spinal cord of rats. PV-IR Neurons were demonstrated in all lamina of the gray matter of the spinal cord. These immunoreactive cells had the highest density in the layer I and II of dorsal horn and several nuclei of the ventral horn of the all the segments of the spinal cord. CB-IR neuropil labeling was strongly noted in all the segments of the spinal cord. In contrast PV-IR neurons were different in distribution, size and morphology in the spinal cord. The number of PV-IR neurons were greater than in the spinal cord compared with the CB-IR neurons. CB-IR and PV-IR somata were round, oval, spindle and polygonal in shape, and were unipolar, bipolar, multipolar and horizontal in types. The diameters of the somata of the PV-IR and CB-IR neurons were 40-50 ㎛, respectively. Also dendrites of PV-IR and CB-IR neurons were densely arrayed in network.
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김종중 대한국토·도시계획학회 2009 국토계획 Vol.44 No.2
This study aims to analyze a spatial concentration and network of Seoul Digital Valley as a representative case of urban industrial complex in Korea and secondly, to identify locational factors of Seoul Digital Valley and finally to suggest a policy implication. Also this study extract variables affecting business' decision to stay or leave to other areas and interpret its meaning. The frequency of firms surveyed by business type, business scale, development phase etc is analyzed. The forward and backward linkage of planning-R&D-production-marketing are also analyzed. And also the location of R&D service is almost in Seoul Digital Valley. The results show that the businesses in Seoul Digital Valley are R&D-oriented small and medium enterprises. The frequency and the magnitude of the locational advantages is analyzed. The result shows that the advantages responded frequently are as follows: location cost, transportation infrastructure, service facilities, pleasant environment, telecommunication infrastructure, accessibility to urban center or major facilities. This show the result of factor analysis on locational advantages to extract new factors representing the similar group of locational advantages. There are five factors which has eigen value over 1.0. And those five factors can explain 62.8% of all variance. Five factors could be named as locational factor of business support, locational factor of physical facilities, locational factor of environment, locational factor of business clustering, locational factor of support policies. The probability of continuous stay is analyzed to find out which locational advantage affect the decision on stay or not of the firms in Seoul Digital Valley. The result of logistic regression shows that the variables positively affecting the decision of remaining are accessibility to customers and market, concentration of the same business type for technology cooperation, technology cooperation with a higher research and education institute, easiness of using technology support institute, support policy or program of local government, easiness of expansion, brand value of Seoul Digital Valley, transportation easiness to related firms, telecommunication infrastructure, linkage with R&D and production, accessibility to urban center or major facilities, service facilities. The result of logistic regression shows that the variables negatively affecting the decision of remaining are accessibility to suppliers, easiness of securing a high class work force, concentration of business support service, enlargement of market, regional quality for innovation and cooperation, support policy or program of central government, plenty of learning opportunity, location cost, transportation infrastructure, pleasant environment. In summary, the locational advantages of Seoul Digital Valley are formed focusing on physical and environmental factors and these could induce high technology firms to Seoul Digital Valley. But the support on technology innovation and R&D related innovation is necessary to upgrade the competitiveness of Seoul Digital Valley.
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김종중,문정석,정주현 順天鄕大學校 1980 의대논문집 Vol.5 No.-
Authors took an abnormal spleen from a korean male adult cadava aged about 52 years in the Anatomy department of medical College, Chosun University. After dissection, we report views on autopsy and discussion on references. Particular matters were as follows 1. Spleen weight : 3,760gm; Speen length: 32,50cm ; Spleen width : 17,25cm, Spleen thickness : 11,50cm. 2. Spleen type : tetraheadral type.
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