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대장균(E. coli B)의 항생제처리가 $T_3$ phage의 부착에 미치는 영향
정상진,김은수,Chung, Sang-Jin,Kim, Woon-Soo 한국현미경학회 1980 Applied microscopy Vol.10 No.1
E. coli B was treated with colistin and kanamycin and the influence of these antibiotics on the absorption of $T_3$ phage was studied using the plaque counting method and the electron microscope. E. coli B treated with colistin was sharply inhibited on phage absorption and cell walls were severely damaged showing some spiny appearance around the walls. No influence of kanamycin was noted on phage absorption. Bacterial cells treated with kanamycin showed wave form in the structure of walls and a profound change was noted in the cytoplasm where it was concentrated along the periphery of the inner wall leaving the center of the cell to appear almost empty.
정상진,유갑봉 ( Sang Jin Chung,Kap Bong Yoo ) 한국환경생물학회 1990 환경생물 : 환경생물학회지 Vol.8 No.2
The heavy metal contents of freshwater fishes in the Keum river were investigated during from March 1985 to February 1986. The contents of cadmium, chromium, copper, manganese and zinc in muscle and bone of several species of fishes were analysed. The heavy metal contents of the freshwater fishes collected at Dae-Dong Ri and Bu-yeo were comparatively higher than those of the Dae-Chong lake. The heavy metal contents in fish muscles were analysed as Cd 0.004∼0.028㎍/g, Pb 0.157∼0.937㎍/g, Cr 0.039∼0.235㎍/g, Cu 0.278∼1.472㎍/g, Mn 0.252∼1.189㎍/g and Zn 3.199∼12.772㎍/g, and in fish bones as Cd 0.250∼0.158㎍/g, Pb 1.173∼5.050㎍/g, Cr 0.769∼2.711㎍/g, Cu 1.275∼2.429㎍/g, Mn 2.917∼21.032㎍/g and Zn 29.052∼45.348㎍/g. The heavy metal contents in bones were significantly higher than those of muscles in almost all kinds of fishes. And accumulation of heavy metals in tissues of fishes tended to increase with the body weight .The heavy metal contents of fishes in the Keum river were lower than the limit contents of the heavy metis in food permitted by FAO.
서울시내(市內) 일부(一部) 저소득층(低所得層) 비급식국민학교(非給食國民學校) 아동(兒童)의 식생태(食生態)에 관한 연구(硏究)
정상진,최선혜,모수미,이수정,Chung, Sang-Jin,Choi, Sun-Hae,Mo, Su-Mi,Lee, Soo-Joung 한국식생활문화학회 1991 韓國食生活文化學會誌 Vol.6 No.4
A study of eating behavior was conducted among 274 children of Nan Hyang elementary school, located in low income area of Seoul, where a school lunch program is not operated. During weekdays, 19.6% of children ate breakfast and 18.4% ate supper alone or with their siblings. The school provided boxed lunches for 10.5% of the children with governmental funds, who were chosen by the school based on their household income. But the percentage of the children skipping breakfast was 14.6%, lunch 10.3% and supper 8.0%. The results of nutritional analysis of the children who had three meals a day and those of children skipped one of the regular meals were compared. The group who had three meals consumed more nutrients except vitamin C than the group skipped meal (p<0.01). Most common meal pattern was consisted of cooked rice, Kimchi and side dishes. When the children didn't have afternoon classes, 10.0% of the children ate Ramen only at home without any side dishes. Among the protein sources, the beans and bean products were the most common items. When we studied the three different lunches such as A) the boxed lunches provided by school, B) the boxed lunches from home and C) the lunches ate at home, the A) lunches provided the most common items. When we studied the three different lunches such as A) the boxed lunches provided by school, B) the boxed lunches from home and C) the lunches ate at home, the A) lunches provided the milk products, fruits, ice cakes${\cdots}$etc. Their favorite foods were fruits, yoghurt, Chinese black noodle, and sweet potatoes whereas being not prefered foods, were aromatic vegetables. It seemed that the increasing rate of working mothers and the overflooding of instant foods have caused to neglect children's meal management. To solve these problems, nutrition education and extend of school lunch programs should be emphasized.