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김대현,김효경,박지강 대한신경과학회 2005 대한신경과학회지 Vol.23 No.1
We report a case of acute Wernicke encephalopathy in which diffusion-weighted imagings (DWI) revealed symmetrical high signal intensities in the medial thalamus, bilateral hemispheres of the cerebellum and periaqueductal gray matter. Calculation of the apparent diffusion coefficient demonstrated a mildly decreased diffusion on the affected regions. The high signal lesions were slowly resolved on the acute phase follow-up images with the administration of thimaine. We propose DWI should be included in the imaging protocols of patients suspected to suffer from Wernicke encephalopathy.
도시가로 보행자 공간의 만족요인 분석에 관한 연구 -대전시 도시 가로 보행자 공간을 중심으로-
김대현 한국조경학회 1994 韓國造景學會誌 Vol.22 No.3
The purpose of this study was to investigate factors and variables which have significant effects on satisfaction of urban pedestrian sidewalk in taejon city, and to suggest basic information for urban pedestrian sidewalk. These works consist of two phase; The first, tested the user's degree of satisfaction for 37 spots of pedestrian sidewalk slide and then selected 10 spots slide by the stratified random sampling method. The second, analyzed factors and variables of satisfaction of urban pedestrian sidewalk using the semantic differential scale method, and then processed by mean score, correlation, factor analysis, multiful algorithm. The results were summarized as follows; 1) The relationship between the man group and the woman group was highly correlated as well as between the student group.1 and the student group.2 hense these groups statistically showed no difference in satisfaction ratings. 2) Pedestrian sidewalk width, cleanness, pavement materials and construction condition can be significant variables of satisfaction of urban pedestrian sidewalk. 3) Factors covering the satisfaction of urban pedestrian sidewalk have been found to be Environment of pedestrian sidewalk, Vegetation of pedestrian sidewalk and Form of pedestrian sidewalk. By using the control method for the number of factors, C.P. has been obtained as 62.8%.
김대현,김태형,김지희,김선희,이순애,서광석,이국현,박종두 대한마취과학회 2002 Korean Journal of Anesthesiology Vol.42 No.2
Background : The radial artery pressure is known to differ from central arterial pressure in normal patients (distal pulse amplification) and in the early postcardiopulmonary bypass period. We assumed that there may be a change in the normal relationship between central and peripheral arterial pressure in patients with hepatic failure due to an arterio-venous shunt caused by vasodilation and a complex surgical procedure with major vessel clamping. This study was done to examine the adequacy of the radial artery as a site for blood pressure monitoring in liver transplantation (TPL). Methods : We investigated when the pressure gradient developed and what mechanism could be responsible by comparing femoral artery pressures, systemic vascular in 11 patients undergoing liver transplantation. Radial and femoral artery pressures, systemic vascular resistance, cardiac output and temperature were compared during surgery in all 11 patients. Additionally measurements included pH, P_aO_2, P_aCO_2, central venous pressure, pulmonary artery pressure and mixed venous oxygen saturation. Results : The femoral artery systolic pressure was higher than the corresponding radial artery pressures during the operation. Although not statistically significant, the radial mean and diastolic artery pressures were lower than corresponding the femoral artery pressure. Conclusions : Radial artery systolic pressures underestimate the femoral artery pressure when undergoing a liver TPL. Failure to recognize these effects on pressure recordings can lead to inappropriate patient management decisions. (Korean J Anesthesiol 2002; 42: 183~189)
김대현,김지희,이순애,장성호,박종두 대한마취과학회 2002 Korean Journal of Anesthesiology Vol.42 No.2
Background : This study was designed to identify overtransfusion- triggering clinical factors in patients undergoing total hip replacement surgery. Methods : The discharge hematocrit was chosen for evaluation. Estimated red cell loss for each patient during the admission was calculated by the differences between admission and discharge hematocrit, multiplied by patient whole blood volume. Total RBC lost was then determined by the sum of RBC volume lost plus the RBC volume transfused. RBC volume in each patient at admission. Comparison of transfusion practice was done on the basis of sex, age, preoperative hematocrit, surgical procedure and anesthetic method. Results : Forty-six (37.7%) of 122 patients were identified to have been transfused with red cell volumes in excess of red cell volumes lost. Significant differences for patients transfused in excess of needs were found by sex (52.4% of women vs. 22.0% of men, P = 0.001) and by preoperative hematocrit (71.4% of patients with lower hematocrit vs. 24.1% of patients with higher hematocrit, P = 0.001). Conclusions : Preoperative hematocrit and sex can be a overtransfusion-triggering index. (Korean J Anesthesiol 2002; 42: 167~171)
김대현 대한건축학회 2003 建築 Vol.47 No.3
아파트는 주변건물과의 부조화로 인해 도시경관을 파괴시키고, 획일적인 건물형태와 배치로 인하여 단조로운 공간을 형성하고 있다는 지적과 노약자에게는 불만족스러운 주택 유형이라는 평가를 받아오고 있다. 그러나 최근의 아파트는 이러한 평가와 달리, 환경 친화적 개발을 표어로 에너지가 절약되고 부하가 없는 자연 아파트, 생태 아파트, 전원 아파트 그리고 미적으로도 아름다운 공원 같은 아파트로 변해져가고 있다.<br/> (본문중에서)
농촌지역 공간의 벽돌 담장 줄눈에 나타난 심리적 특성 분석
김대현 한국농촌계획학회 2012 농촌계획 Vol.18 No.4
Recently, brick walls are being widely introduced in rural areas. Walls are a very important design element of space. However, most brick wall works do not consider the human psychological characteristics. The purpose of this study was to investigate psychological characteristics on brick wall bonds such as the stack bond, running bond, english bond, flemish bond, america bond. The results of the research can be summarized as follows: 1)There is no statistical difference of psychological evaluation results among student groups using the semantic differential scale method using 10 adjectives. 2)Stack bonds have an uninspiring, artificial, simple, restful, boring and ordered psychological characteristic. Running bonds have an uninspiring, restful and ordered psychological characteristic. America bonds have a unique and modernistic psychological characteristic. English bonds have a unique, modernistic, complex and chaotic psychological characteristic. Flemish bonds have no critical psychological characteristics. 3)The running bond earned the highest score in preference, while the stack bond scored the lowest. Employment of brick wall bonds on this study was not highly preferred, hence it is necessary to develop a new brick wall bond design. 4)In conclusion, the proper selection of brick wall bonds is very important and we should consider human psychological characteristics in the design of rural areas.