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김웅흠,김우택,이창연,김동욱,박성기,장무환 동국대학교 경주대학 1993 東國論集 Vol.12 No.-
Hemolytic uremic syndrome is characterized by Coombs-negative microangiopathic hemolytic anemia, thrombocytopenia, and acute renal failure in infant and children. At present, E. coli 0157 : H7 and other verotoxin-producing E. coli(VTEC) seem to be a major cause of this illness. The majority of patients have a prodrome of bloody diarrhea, and acute renal failure develops several days to weeks later. Although an optimal treatment remains unknown, the general management of hypertention and renal failure with early and frequent dialysis is the mainatay of treatment, and intravenous administration of immunoglobulin G is like to be effective. We experienced a case composed of bloody diarrhea, seizures, coma, and anuria in 1 year old girl who was diagnosed as HUS and recovered renal function completely with slight impairment of cognitive ability and behavioral function. We presented this case with a review of literatures.
韓國 自生 범부채(Belamcanda chinensis (L.) DC.)의 種子發芽에 關한 硏究
朴潤点,劉成吾,崔權雄,鄭然玉 한국화훼연구회 1995 화훼연구 Vol.4 No.1
These studies were carried out to investigate the seed germination of Belamcanda chinensis (L.) DC. The results obtained are as follows : 1.Optimum temperature of seed germination was 25℃, and the seed germination rate was raised to 92% by 20/30℃ alternative temperature treatment. 2.Under the condition of moist low temperature storage, the germination rate was 53% at 42 days after sowing, but showed the germination rate of 11% at same period with dry low temperature storage. 3.The germination rate was higher in the light condition than in the dark condition. 4.The germination rate was higher when the seed coat was removed than when the seed coat was not removed or the seed coat was stratificated. 5.The germination rate was 80% with 100ppm GA3 treatment, and 76% wihh soaking treatment of 1% KOH solution for 24 hours.
장섬유강화 고분자 복합판의 프레스 성형에 있어서 니트라인에 관한 연구
조선형,이국웅,안종윤,윤성운 한국공작기계학회 2001 한국생산제조학회지 Vol.10 No.2
In recent years, compression molding of lone fiber-reinforced thermoplastics has been increased in commercial aspects. In the process of compression molding of composites, the flow analysis must he developed in order to accurately predict the finished part properties as a function of the molding process parameters. In this model FRTP is assumed to be nonisothermal fluid, which has different viscosities in extensional and in shear. For verification of the model, the formation of a knit line in the L-shaped parts is compared with that of experiments results. In this paper we will discuss the effects of extensional & shears viscosity ratio ξ and slip parameter α on the other mold fill-ing parameters
조선형,안종윤,이국웅,윤성운 한국공작기계학회 2001 한국생산제조학회지 Vol.10 No.2
During a compression molding process of Unidirectional Fiber Reinforced Thermoplastic Composites, control of filling patterns in mold and distribution of fiber is needed to predict the effects of molding parameters on the flow characteristics. To obtain an excellent product and decide optimum molding conditions, it is important to know the relationship between molding conditions and viscosity. In this study, the anisotropic viscosity of the Unidirectional Fiber-Reinforced Polymeric Composites is measured by using the parallel plastometer. The model for flow state has been simulated by using the viscosity. The composites is treated as an incompressible New-tonian fluid. The effects of longitudinal transverse viscosity ratio A and slip parameter α on buldging phenomenon and mold filling patterns, are also discussed.
혈중납이 흰쥐의 Microsomal Cytochrome P-450 Monooxygenase 활성도에 미치는 영향
박기현,장성근,윤영안,김기웅,박종안 순천향대학교 1993 논문집 Vol.16 No.3
In rats treated with lead nitrate and/or red ginseng extract mixture we observed a change in the level of hepatic cytochrome P-450 and electron transport system for P-450 dependent reaction, and content of Zincprotoporphyrin(ZPP) and Hemoglobin(Hb) in whole blood. The content of cytochrome P-450 and ?? , and the activity of ECHEase, AHHase and NADPH-cytochrome C(p-450) reductase were slowly decreased according to the dosage of lead nitrate. On the other hand, the activity of ?? reductase was increased according to the dosage of lead nitrate, but in case of treatment with red ginseng mixture, this enzyme activity was slightly decreased. In whole blood, the content of hemoglobin and ZPP were not shown any critival change but lead content increased according to dosage of lead nitrate. These results suggest that content and activity of cytochrome P-450-dependent monoxygenase may be dependent on specificity of substrates, and the acute exposure of lead nitrate and red ginseng extract mixture was not affected any biological significance.
( Sang Woong Youn ),( Bo Ri Kim ),( Joo Heung Lee ),( Hae Jun Song ),( Yong Beom Choe ),( Ji Ho Choi ),( Nack In Kim ),( Kwang Joong Kim ),( Jai Il Youn ) 대한피부과학회 2015 Annals of Dermatology Vol.27 No.2
Background: The development of therapies for psoriasis has led to the need for a new strategy to the treatment of patients with moderate-to-severe psoriasis. New consensus guidelines for psoriasis treatment have been developed in some countries, some of which have introduced treatment goals to determine the timing of therapeutic regimens for psoriasis. Objective: To investigate the opinions held by Korean dermatologists who specialize in psoriasis about treatment goals, and to compare these with the European consensus. Methods: Korean dermatologists who specialize in psoriasis were asked 11 questions about defining the treatment goals for psoriasis. The questionnaire included questions about the factors used to classify the severity of psoriasis, defining the induction and maintenance phases of psoriasis treatment, defining treatment responses during the induction phase, and defining treatment responses during the maintenance phase. Results: The Korean consensus showed responses that were almost similar to the European consensus, even without using the Delphi technique, which uses repeated rounds of questions to reach a consensus. Only one response that related to psoriasis severity in the context of the quality of patients` lives differed from the European consensus. Conclusion: The concept of using treatment goals in the treatment of moderate-to-severe psoriasis can be applied to Korean psoriasis patients. Since a tool for assessing the quality of patients` lives is not commonly used in Korea, the development of a simple, rapidly completed, and region-specific health-related quality of life assessment tool would enable treatment goals to be used in routine clinical practice.(Ann Dermatol 27(2) 184∼189, 2015)
( Sung Hwan Youn ),( Chong Won Choi ),( Jae Woo Choi ),( Bo Ri Kim ),( Sang Young Byun ),( Sang Woong Youn ) 대한피부과학회 2013 대한피부과학회 학술발표대회집 Vol.65 No.2
Background: We usually divided cosmetic facial zone into the T zone and U zone by the level of sebum secretion. Our recent studies suggested that the perioral area showed different characteristics in the aspect of acne development. Objectives: To investigate the unique characteristics of the O zone (perioral area) among the three facial areas. Methods: A total of 102 patients clinically diagnosed as acne vulgaris were included. The acne lesions were counted from the clinical digital photographs by facial areas. The sebum level was measured using Sebumeter®. Area-weighted (AW) sebum and AW density of three areas of face were calculated. Statistical analysis was performed according to age and gender. Results: There were no differences in the mean AW sebum level between the gender and age groups. Male has higher AW density of acne lesions than female at the O zone. The mean AW density of acne lesions on the NT zone, U zone, and whole face showed decrease by age, but at the O zone, 21-30 years group showed the highest mean AW density of acne. Conclusion: We suggested that the O zone is an independent facial zone, which showed a moderate-to-high sebum secreting area, maintained the acne lesions development by age, and predominated acne lesions in the male acne patients than female acne patients. Therefore, the O zone should be separated from the usual cosmetic T zone, and NT zone should replace the old T zone.