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만성 신부전증 환자에서 혈청 Prolactin 치의 변동에 관한 연구
양승호,김형준,강영준,문희식 대한내과학회 1986 대한내과학회지 Vol.30 No.6
In order to clarify the influence of chronic renal failure and hemodialysis on plasma prolactin concentration, plasma prolactin concentration was measured in 7 patients with chronic renal failure receiving conservative treatment, 12 uremic patients on intermittent hemodialysis and 10 subjects with normal renal function. The results were as follows: 1) There was marked elevation of plasma prolactin concentration in the patients with chronic renal failure as compared to the patients with normal renal function. 2) There was a positive correlation between plasma prolactin concentration and plasma creatinine, but there was no significant correlation between plasma prolactin concentration and BUN. 3) In 12 subjects undergoing hemodialysis, there was no significant change of plasma prolactin concentration between before and after hemodialysis.
梁承浩,元忠淵 成均館大學校 科學技術硏究所 1994 論文集 Vol.45 No.1
In this study, a Self-Learning Neuro -Fuzzy Controller is presented. Due to the fuzzy controller property, the designing problems of fuzzy if then rules, membership and inference methods are very complex task. Thus in this paper we proposed the Neuro-Fuzzy Networks composed by Sugeno and Takagi's fuzzy inference method and learned by using temporal back propagation algorithm. The proposed method can refine automatically the fuzzy if-then rules without human expert's knowledges. The induction motor servo system is used to de-monstrate the effectiveness of the proposed control scheme and the feasibility of the acquired neuro-fuzzy controller. All results are supported by simulation.
소뇌 반구에 발생한 원발성 난황낭종양- 증 례 보 고 -
양승호,홍용길,강준기,김문찬 대한신경외과학회 2003 Journal of Korean neurosurgical society Vol.33 No.4
Primary intracranial yolk sac tumor usually arises in the pineal or suprasellar area and shows poor prognosis. Several children with primary yolk sac tumor in the cerebellum have been reported in the literature, and none of these survived beyond 30 months. We report a case of primary yolk sac tumor in the cerebellum showing longer survival with intensive multimodal combined therapy using surgery, preirradiation chemotherapy, and irradiation. Key words:Yolk sac tumor;Cerebellum;Chemotherapy;Radiotherapy.
梁承鎬 충남대학교 경영대학원 1975 經營學論文集 Vol.2 No.-
In deciding the source of financing, the characteristics of the financial status of each enterprise should be considered, so that the lowest capital cost and the highest earning per share of common stocks can be secured. The purpose of this study is to analyze and evaluate the reasonability of the financial policy of issucing preferred stock as a source of financing in Korean enterprises in these years. And this study is to find out the prodlems about the terms of preference, the preferencial devidend rate, the maturity of preference, etc. The problems, in effect, are as follows; Fist, most of preferred stocks issued are participating preferred stocks, that weaken the ability of self financing by the higher rate and long term maturity of preferencial dividend. Second, the capital cost of preferred stock financing are lower than that of other sources. Third, the dividend rate of preferred stock is much higher than the earning per share of common stock, that means the possibility of changing the source of financing or the terms of prerefence by securing the sound financial structure and self financing. Above all, it has been comperatively successful for the issuer to use the preferred stock financing in the light of internal and external conditions at the time. But, considering of changes both in economical conditions and security maket changes in these days, the most important thing for the issuer to do is to secure a sound financial structure, as soon as possible, so that it enables basicaly to change the policy of inancing as the use of common stock financing or the use of convertible bonds.
양승호 건국대학교 교육대학원 1982 敎育論叢 Vol.2 No.-
1. In the past, the leadership type of the elementary school teachers was generally autocratic one. We can find that autocratic type mixed with democratic type and the democratic leadership type are gradually coming into being. 2. Young and high-educated elementary school teachers are inclined to follow the democratic leadership, while old and low-educated ones to follow the something similar to the autocratic leadership. And the questionnaire also says that much difference lies between the urban and the rural areas. 3. It also points out that as for the home education many pupils brought up under the democratic home education are from the parents young, high-educated, living in cities, while the other pupils brought up under autocratic home education are from the parents old, low-educated, living in small towns and villages in poor cultural facilities. 4. Many pupils in questionnaire think that the future desirable type of leadership should be a democratic one, while the elementary school teachers now accupied think that a desirable leadership type should be a mixed one(autocratic and democratic). I suppose this is the result due to the differences in consciousness structure between the generations. 5. The comparative analysis of the preliminary and the main study proved that autocratic types decreased from 35.2% to 16.0% and the democratic ones rapidly changed 7.8% to 50.7% in the past 10 years or so. From the above statements we find that our education is changing from autocratic type into democratic one, that nowdays a generation after the liberation the democratic leadership type is not widely used, that improvement in consciousness in structure takes more than a generation. It also suggests that the leadership in elementary school teachers is developing into a desirable one, that we have a bright future in education.