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李恩奉,鄭光,朱榮淑,李鍾淑 덕성여자대학교 고등교육연구소 1988 敎育硏究 Vol.1 No.-
The purpose of this study was to develop a curriculum model for the small, private and women's university in Seoul area. The curriculum was deeply interrelated with the missions of the university stated with the resources, the tradition and tile adopted view oil education. For the example university, the speciality web counted as follows : undergraduate education rather than research as a small sine university, integrated identity of the harmonious women as a women's university and preserving diversity as a university in Seoul area was considered. The principles for a curriculum model drawn from these consideration was as follows : 1) The university curriculum should be relevant to the ideal of the university, i. e. the whole person. 2) The university curriculum should be composed of general education, concentration, and electives. These should be distributed harmoniously. 3) The general education ie the breadth component of the curriculum, and the essential area should be prescribed by the university authority. 4) The concentration is the depth component of the curriculum. The students should be given the depth experience relevant to undergraduate level at least in one area. 5) The electives can be used fer the diverse academic and individual interest and need. 6) The curriculum should be operated with the help of the university curriculum committee. The models of the undergraduate curriculum was composed under the above principles and suggested as a conclusion.
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이은봉,박석천 順天大學校 農業科學硏究所 1995 農業科學硏究 Vol.9 No.-
The purpose of this study was to determine the effect of high density lipoprotein (HDL) and low density lipoprotein (LDL) on the growth of porcine embryos in vitro. A total 229 embryos ranging from 4 cell to blastocyst stage were recovered from 12 sexually mature crossbred gilts through midventral laparotomy. Only morphologically normal embryos were randomly allocated into culture in one of the following media : 1) mKRB without lactate and pyruvate (n=65), 2) mKRB plus HDL (n=64), 3) mKRB plus LDL (n=66). They were incubated in an atmosphere of 5% CO_2/, 5% O_2/, 90% N_2. Daily observations stopped when embryos failed to develop for two consecutive observations. In no case did 4-8 cell embryos advance more than 1 developmental stage. Morulas tended to advanced 2 stage when HDL and LDL were added. Blastocysts advanced 1 stage and 2 stage when HDL and LDL were added respectively. The statistical evaluation showed no significant differences (p<0.05) between treatments.
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Silver Nitrate 용액의 정소내 주입에 의한 가토의 거세효과에 관한 연구
이은봉,박충생,강대진,윤창현 ( E . B . Lee,C . S . Park,D . J . Kang,C . H . Yun ) 한국축산학회 1985 한국축산학회지 Vol.27 No.12
This experiment was carried out to develop a chemical castration with a single intratesticular injection of silver nitrate solution in domestic rabbits. A total of 44 bucks of 4 to 5 months old were alloted at random into the following 4 groups: 9 bucks for controls, 6 bucks for 0.3㎖ injection of 1% AgNO₃, 14 bucks for 0.5㎖ injection of 1% AgNO₃ and 15 bucks for 0.5㎖ injection of 5% AgNO₃. Changes in body weight, testicular width in scrotum. weight and histology of testis at necropsy, blood cell counts and plasma levels of testosterone of the buck were measured for 4 weeks after treatment. The results obtained were summarized as follows: Compared with the controls, the body weight gain of bucks treated with AgNO₃ was not significantly (P$lt;0.05) different during the experimental period for 4 weeks. The white blood cell counts were tended to be increased slightly but insignificantly 1 day after injection of AgNO₃ and then decreased to normal level soon. There was no significant change in red blood cell counts in the bucks treated with AgNO₃. Most of the testis of bucks were swollen significantly (P$lt;0.05) by 6 to 12㎜ in the width of testis in scrotum 1 day after injection of AgNO₃, but began to decrease in sue from 3 days after treatment and to their normal size in a week. The AgNO₃ injection was not sufficient to castrate some bucks successfully. Only 60.0 to 66.7% of the bucks treated with 0.0㎖ of 1 or 5% AgNO₃ solution showed the plasma levels of testosterone of !sower than 0.1 ng/㎖ by 28 days after treatment. This result was considered to be due to the fact that not a whole but a limited part of testis was injured by the present method of injection. The weight of testis of the bucks of which plasma testosterone were less than 0.1 ng/㎖ by 7 to 28 days after treatment was not significantly(P$lt;0.05) different between the treatments or periods after treatment. This result indicates that the period of 4 weeks following treatment might be insufficient for the injured testicular tissue to be necrotized and absorbed fully. The extent of damage of testis by injection of AgNO₃ was much different by the local effect in the parts of distance from injection. The proximal portion of testis injected with AgNO₃ was fully damaged and necrotized, but a distal part of testis was not severely damaged.
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