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成台慶,李永根,宋鎭彦 中央醫學社 1974 中央醫學 Vol.27 No.6
Supratentorial hemangioblastomas are extremely rare since almost all of the hemangioblastomas of the central nervous system were occurred in the cerebellum. We have experienced a case of the right parieto-occipital hemangioblastoma which was removed successfully and confirmed histologically. A 64-year-old woman was admitted to St. Mary's Hospital, Catholic Medical College in October, 1973, because of headache, vomiting, left hemiparesis and mental confusion. She had had severe headache since 6 months prior to admission and associated with frequent nausea and vomiting. Mental confusion and progressive left hemiparesis were detected by family since 2 months prior to admission. On admission, neurological examination revealed drowsiness and disorientation. Ophthalmological examination disclosed visual impairment, papilledema and left inferior quadrantanopsia. There was left face supranuclear type weakness and left hemiparesis with positive pathological reflex. Right carotid angiogram showed a well demarcated homogenous round tumor stain at paramedian area of the right parieto-occipital Iobe. Brain scan with 99'Tc pertechnetate showed a round uptake at the right parieto-occipital region. Through the right temporo-parieto-occipital craniotomy we found a brownish red solid mass which was embedded into medial aspect of the occipital lobe adjacent to falx. The tumor was not attached to the meninges or falx. The tumor was successfully removed en bloc, and it was measured 5. 5cm X4. 5cm X2. 5cm in size. Postoperative course was uneventful and follow-up observation noted improvement of previous symptoms and signs except visual defect. Histological features of the tumor showed numerous delicate vascular channels primarily of capillary type with blood in the lumina of the large vessels. Histological diagnosis was hemangioblatoma.
성태경 대한경영정보학회 2008 경영과 정보연구 Vol.26 No.-
In the knowledge and network economy, standards and standardization become an important factor in determining the competitiveness of nations and firms. This paper analyses some cases of firms' strategic standardization. We defined the concept of standards, standardization, strategic standardization, and standardization management, which have been unfamiliar in the academic society. The standardization strategy can be categorized into four types according to firm's management objectives or benefits, including technological innovation, market creation/extension. cost-down, and accreditation. This classification of standardization strategy is very useful in analysing the various kinds of the cases of strategic standardization implementation. We found that standards and standardization have a positive influence on firm's overall performance. In some cases, for example, Dell Computer, Sun Microsystems, Deere & Company, etc., strategic standardization plays a role as a key success factor(KSF).
기업의 기술혁신 활동 결정요인: 자원기반 관점에서 본 탐색적 연구
성태경 기술경영경제학회 2002 Journal of Technology Innovation Vol.10 No.2
This paper investigates the determinants of the firm`s decision to carry out innovative activities in terms of the resource-based view(RBV) in strategic management. Two types of resources are distinguished: tangible(financial autonomy, firm size, capital intensity) and intangible(human resource, entrepreneurship, and commercial resource). R&D intensity and patent statistics are used as proxies for innovative activity. Specific hypotheses about their effect on the probability of a firm carrying out innovative activities are derived and tested on a sample of 337 listed firms in Korean manufacturing industry for the year 1999, using the logistic regression model. Empirical findings suggest that firm size and human resource are the main determinants of firm`s internal innovative activities. The results show that the hypotheses concerning financial autonomy, debt ratio, capital intensity, entrepreneurship, and commercial resource are rejected.