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문종국,박명호,김용준,Moon, Jong-Kook,Park, Myeong-Ho,Kim, Yong-Joon 대한예방의학회 1991 예방의학회지 Vol.24 No.2
Finances of health insurance can be explained by factors determining benefit expense and premium collection. This study was conducted to analyze factors contributing to the financial status of rural health Insurance. Nationwide 134 health insurance associations except the six pilot project counties were analyzed and obtained the followings. 1. In univariate analysis, statistically significant variables that explain 1) outpatient benefit expenditures include public health center utilization, proportion of pregnant women. premium and collection rate of premium 2) inpatient benefit expenditures include public health center utilization, Proportion of old age, proportion of pregnant women, premium and collection rate of premium 3) profits include public health center utilization, proportion of old age, proportion of pregnant women and collection rate of premium. 2. In multiple regression analysis, statistically significant determinants in 1) outpatient benefit include premium and public health utilization 2) inpatient benefit include premium 3) profit include public health center utilization, premium and collection rate of premium.
이덕희,문종국,배강우,이용환,김진하,박강원 大韓産業醫學會 1996 대한직업환경의학회지 Vol.8 No.3
This study was conducted to evaluate the blood lead levels in 141 pregnant women who were not occupationally exposed to lead and their umbilical cord, and to identify some differences in blood lead levels by living area. The subjects were all delivered at St. Benedict Hospital in Pusan and the blood lead levels were measured by graphite furance atomic absorption spectrophotometer. The summarized results were as follows. 1. The geometric mean lead levels in maternal and cord blood were 8.0±1.8μg/dl, 5.0±0.6μg/dl respectively. 2. Lead levels in maternal(8.7±1.7μg/dl) and cord blood(5.4μ±0.7μg/dl) of industrial area(n=24) were higher than residential area(n=124) which were 7.9±1.7μg/dl and 5.0±0.6μg/dl respectively(p<0.05). 3. Maternal blood lead concentration was significantly correlated to cord blood lead concentration(r=0.6090, p<0.001), but other variables(maternal age, paternal smoking, birth weight, etc) were not correlated.
한범구,조성준,문종국,김새봄,조도현 한국키틴키토산학회 2000 한국키틴키토산학회지 Vol.5 No.3
Low-cost enzyme sources are requested for the production of chitosan oligomers, which were recently spotlighted as functional oligosaccharides. Gizzard tissue of broiler and its chyme are selected for the production of chitosan oligomers, and chitosanolytic activities were investigated. Chitosanolytic activity of chyme was about two times higher than that of gizzard tissue. Repeated freezing and thawing did not affect the activity of crude enzyme preparations. Optimal pH for the gizzard and the chyme were 3.0 and 2.8, respectively. Optimal temperature of the crude enzymes ranged from 60℃ to 70℃ and their activities were maintained at 70% level at 80℃. At 50℃ for three days no decrease in their activity was observed. After 24 hour incubation, gizzard and chyme produced 40 yg oligomers/mg-protein and 80 yg oligomers/mg-protein, respectively. Under optimal conditions, 62% of total substrate were made water-soluble by the gizzard. Trimer of glucosamine was identified as its main reaction product.