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최경규 梨花女子大學校 醫科大學 醫科學硏究所 1988 EMJ (Ewha medical journal) Vol.11 No.2
Diplopia may result from a variety of causes. The cases reported here illustrate several etiologies, progneses, and diagnostic investigation. The most common ocular motor palsy was the abducens nerve palsy(48%), and the others were oculomotor nerve palsy(24%), convergence palsy(16%), trochlear nerve palsy(8%) and divergence palsy (4%) in this order. The most common cause of ocular movement palsy was vascular disorder (44%), and the other causes were trauma(16%), aneurysm(8%), neoplasm(4%) and hydrocephalus(4%). The ocular motor palsy due to vascular disorder was best prognosis.
최경규,박기덕 梨花女子大學校 醫科大學 醫科學硏究所 1995 EMJ (Ewha medical journal) Vol.18 No.4
Present knowledge of brain mechanism is mainly based on anatomical and physiological studies. Such studies are however insufficient to understand the information processing of thebrain. The present new focus on neural network studies is the most likely candidate to fill thisgap. We made a simulation of striaum by neural network model, which is capable of limitedgeneralization and completion and possesses characteristic property of brain such as termedgrceful degradation.
치과용 가시광선중합형 복합레진의 잔류단량체 정량분석에 관한 연구
최경규,민병순 大韓齒科保存學會 1992 Restorative Dentistry & Endodontics Vol.17 No.1
The purpose of this study was to estimate the contents of the resicual monoers, such as Bis-GMA and TEGDMA. In this study, materials used were six kinds of anterior and posterior visible lightpcured resins. Resins were placed in disk- shaped Teflon mold (8.5mm in diameter, 2.0mm in thickness), and cured for 20 seconds with visible light soruce attached wide diameter lightguide. The specimens were immersed in 10ml ethanol and stored for 5 days at 37℃. The concentration of residual monomers in eluate solution was analysed by HPLC, and the following results are obtained. 1. The residual Bis-GMA and TEGDMA were detected in all materials used, and the ranges of quantly of the residual Bis-GMA was 0.101-1.346 wt% and that of TEGDMA was 0.230-5.794wt%. 2. The contents of residual TEGDMA was detected higher than that of residualBis-GMA(P<0.01). 3. The content of residual monomers was detected to be highest in Bis-Fil M as microfilled type. 4. In most of the materials used, there was no significant difference in the contents of residual monomers between anterior and posterior light-cured resins.
파킨슨병에서 선조체의 신경망적 모델 : 예비적 연구 Preliminary Study
최경규,박기덕 梨花女子大學校 醫科大學 醫科學硏究所 1996 EMJ (Ewha medical journal) Vol.19 No.2
Objective : To construct the neural network model in the striatum that can explain the clin-ical effect of Parkinson disease. Methods : We use an approach to studying the function of neural systems that is based on the use of a class of computer models known as parallel distributed processors(PDPs).And the focus of this study is the nigrostriatal dopaminergic effects on the corticostriatal fibers and the striatal medium spiny neurons. Results : A model that explains hypokinesia in Parkinson disease is presented for the opation of the striatum. Conclusions : In order to study the brain funcion and mechanism of physiopathology, te-stable theories that consider brain as a whole system are needed. We think neural network model with PDPs would be an important field in neuroscience in near future.