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혼합성 운동장애를 가진 뇌성마비 환자들에게 MRI를 이용한 뇌정위적 시상핵 파괴술의 효과
최승제,이규호 대한신경외과학회 1996 Journal of Korean neurosurgical society Vol.25 No.2
A few neurosurgical alleviate to alleviate some dyskinesias of cerebral palsy(CP) have been tried. For the spastic and tremor type, the selective posterior rhizotomy and thalamotomy are regarded as treatments of choice but other dyskinesias remains a tough challenge. The authors have performed 48 cases pof MRI-guided stereotactic thalamotomy(MGST) in 37 CP patients with mixed dyskinesias from Jun. '92 to Jan, '95 using CRW stereotactic frame and MRI, without any ventriculogram. Depending upon the types of main dyskinesias, the target including ventrolateral nucleus of thalamus or medial nucleus of globus pallidus was(were) selected. Clinical results were verified in terms of preoperative symptoms improvement and patient's satisfaction. In athetoid(42 MGSTs in 32 CPs) : excellent 6, good 26, fair 10, and in dystonia(30 MGSTs in 23 CPs) : excellent 2, good 18, fair 10, and in spasticity (20 in 17 CPs) : excellent 3, good 12, fair 5, and in choreo or choreoathetoid(7 in 6 CPs) : good 5, fair 2. Recurrence of symptoms after operation was noted in 6 cases(12.5%). Postoperative morbidity including motor weakness, speech disturbance, swallowing difficulty, and sensory abnormality were transiently noted in 9 cases(18.8%). It is the authors observation that MGST seems to be one of the beneficial procedures for relieving symptoms of CP with mixed dyskinesias.
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동정맥 기형을 동반한 두개강내 정맥 혈관종 : 증례보고 Case Report
최승제,이상형,한대희 대한신경외과학회 1994 Journal of Korean neurosurgical society Vol.23 No.12
Intraerebral venous angiomas with arterial components have been reported rarely. A case of venous angioma with arterial mmponant is presented. The patient was a 29-year-old-female who presented with abrupt headache followed by left hemiparesis. Computerized tomography and magnetic resonance imaging revealed intracerebral hematoma in right temporoparietal lobe and basal ganglia with sumunding signal voids. The cerebral angiography showed the characteristic umbrella appearance and single large draining vein of venous angioma in right temporoparietal lobe and fine arterial branches supplyins the vascular malformation At the operation, multiple arkriovenous fmdas without nidus were observed and delicate angiomatous network with red veins were found around the hematoma cavity. Histologic examination of the angiomatous network proved it to be an arteriovenous malformation. It was a variant of mixed angioma, venous angioma combined with arteriovenous malformation. Clinical, angiographic, and pathological features of intracerebral venous angiomas with arterial components were reviewed from literatures.
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퇴적토 배출을 수반한 연직수문의 수리특성에 관한 실험적 연구
최승제,이지행,최흥식 응용생태공학회 2018 Ecology and resilient infrastructure Vol.5 No.4
하단배출 형태의 연직수문에서의 퇴적토사 이동을 수반한 유량계수, 수력도약 높이, 수력도약 길이의 수리특성을 분석하기 위해 수리 모형실험과 차원해석을 수행하였다. Froude 수와 수리특성의 상관관계를 퇴적토 이동 유무에 따라 도식화하고, 무차원 매개변수와 수리특성의 상관성을 분석하고 다중회귀분석식을 개발하였다. 퇴사의 이동을 수반한 수리특성은 퇴적토의 이동이 없을 경우와는 다른 양상을 확인하여 퇴적토 이동을 특성을 나타낼 수 있는 변수의 도입이 필요함을 확인하였다. 유량계수, 수력도약 높이와 수력도약 길이에 대한 각 다중회귀분석식의 결정계수는 유량계수 0.749, 수력도약 높이 0.896, 수력도약 길이 0.955로 높게 나타났다. 개발한 수리특성식의 적용성을 평가하기 위해 실제 측정값과 회귀분석식에 의해 계산된 값의 95%의 예측구간 분석을 수행하였고, 유량계수, 수력도약 높이와 길이에 대한 예측의 정확도 분석차원의 NSE (Nash-Sutcliffe Efficiency), RMSE (root mean square)와 MAPE (mean absolute percentage error)는 적절한 것으로 판단되었다. In order to analyze hydraulic characteristics of discharge coefficient, hydraulic jump height, and hydraulic jump length, accompanied sediment transport, in the under-flow type vertical lift gate, the hydraulic model experiment and dimensional analysis were performed. The correlations between Froude number and hydraulic characteristics were schematized according to the presence and absence of sediment transport; the correlation of hydraulic characteristics and non-dimensional parameters was analyzed and multiple regression formulae were developed. In the hydraulic characteristics accompanied the sediment transport, by identifying the aspect different from the case that the sediment transport is absent, we verified that it is necessary to introduce variables that can express the characteristics of sediment transport. The multiple regression equations were suggested and each determination coefficient appeared high as 0.749 for discharge coefficient, 0.896 for hydraulic jump height, and 0.955 for hydraulic jump length. In order to evaluate the applicability of the developed hydraulic characteristic equations, 95% prediction interval analysis was conducted on the measured and the calculated by regression equations, and it was determined that NSE (Nash-Sutcliffe Efficiency), RMSE (root mean square), and MAPE (mean absolute percentage error) are appropriate, for the accuracy analysis related to the prediction on hydraulic characteristics of discharge coefficient, hydraulic jump height and length.
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최승제,이시원 한국거버넌스학회 2016 한국거버넌스학회보 Vol.23 No.1
The objective of this study is to search priority of policy alternatives related with youth employment. To do this, review the types of youth employment policy and budget allocations. And through previous studies and FGI, it was selected policy alternatives related with youth employment. The selected policy alternatives were classified as micro and macro policy alternatives. And micro policy alternatives were classified as six policy areas (direct employment, training, employment services, employment subsidies, start-up support, operating policy), macro policy alternatives were classified as five policy areas (industry-economic, law-system, youth-welfare, education, social-culture). Thus classified policy alternatives made a structured questionnaire and conducted AHP survey, and search priority of policy alternatives related with youth employment. And FGI and written survey were conducted to complement validity of the results of AHP which is a quantitative methods. Finally, it derived policy implications for improving the youth employment policies based on the survey results. 본 연구의 목적은 청년고용관련 정책대안의 우선순위를 탐색하는 것이다. 이를 위해서 우선 우리나라청년고용정책의 유형을 검토하고, 정책유형별 예산배분을 분석하였다. 그 다음으로 선행연구 분석과 FGI 조사를 통해서 우선순위 탐색을 위한 정책대안들을 선정하였다. 선정된 정책대안들을 미시적 정책대안과거시적 정책대안으로 분류한 뒤, 미시적 정책대안은 여섯 가지 정책영역(직접일자리, 직업훈련, 고용서비스, 고용장려금, 창업지원, 정책운영)으로 구분하고 거시적 정책대안은 다섯 가지 정책영역(산업경제, 법제도, 청년복지, 교육, 사회문화)으로 분류하였다. 이렇게 분류한 정책대안을 구조화된 설문지로 제작하여전문가 대상 AHP 조사를 실시한 뒤, 그 결과를 분석하여 청년고용관련 정책대안의 우선순위를 탐색하였다. 그리고 양적방법인 AHP 조사결과의 타당성을 보완하기 위해서 FGI와 서면조사를 실시하였다. 마지막으로 조사결과를 토대로 현행 청년고용정책을 개선하기 위한 정책적 함의를 도출하였다.
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