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최혜숙,이은해 연세대학교 생활과학연구소 1998 生活科學論集 Vol.12 No.-
The purpose of this study were: 1) to describe fathers' involvement in housework and child care in dual-earner couples and 2) to examine variables which can predict fathers' involvement in housework and child care. The subjects were one hundred and seventy-three couples who placed their children, 3 to 6 years old, at day care centers. Data were analyzed by percentages, means, standard deviations, correlations, and multiple regression. The results showed that (1) fathers' involvement in housework was very low even in dual-eaner couples, but their involvement in child care was a little higher compared to the involvement in housework. (2) The variables significantly influenced to the fathers' involvement in housework were: fathers' sex role orientation, the difference between fathers' and mothers' working hours, positive reactions by social network members, and mothers' sex role orientation. (3) The variables significantly influenced to the fathers' involvement in child care at home were: the negative and positive reactions by social network members and fathers' sex role orientation.
崔惠淑 고려대학교 의과대학 1964 고려대 의대 잡지 Vol.1 No.2
Substantial number of studies on mechanism of abortion and premature labor have been reported, however, dearth of the literature on pathological observation upon abortion is found, As an aid to clarify mechanism of abortion, residual tissue and regenerated endometrial tissue following abortion and premature labor were observed histologically. Results are as follows : 1) Total cases observed, 24 represent hemorrhagic picture in residual tissues following abortion. 2) 14 cases out of 24 show the presence of chorionic villi on the surface of endometrium in various fashion. 3) Hemorrhage, leucocyte infiltration and fibrinoid degeneration are observed in decidual tissues. 4) In cases accompanying marked villous degeneration, hemorrhage usually occurs afterward, whereas in cases with mild villous degeneration, hemorrhage antecedes the villous changes. 5) Degeneration of chorionic villi are observed even during the course of threatened abortion. 6) Following abortion, incomplete regeneratoin of endometrium is gradually replaced by proliferative pattern. 7) Residual villi adherent to endometrium cause incomplete regenration of endometrium, thereby produce continuous hemorrhages. 8) Residual villi or decidual tissues cause tardy restoration of the endometrium, assuming functional bleeding.
상아질의 치면 처리에 따른 합착용 레진 강화형 글라스 아이오노머 시멘트의 전단결합강도
최혜숙,이청희,조광헌,Choi Hye-Souk,Lee Cheong-Hee,Jo Kwang-Hun,Kim Kyo-Han 대한치과보철학회 2001 대한치과보철학회지 Vol.39 No.5
The purpose of this study was to evaluate the effect of dentin pretreatment with Dentin Conditioner, Ultra-Etch, conditioner of Fuji Plus cement on the shear bond strength of resin-reinforced glass ionomer cements to dentin and analyze the fractured surfaces. To evaluate the bond strength, the extracted human teeth which had uniform area of exposed dentin were cemented with conventional glass ionomer cement, 3M $RelyX^{TM}$ Luting (Vitremer luting cement), Fuji Plus cement after dentin pretreatment. The shear bond strength was measured using the Universal testing machine (Instron Co., USA) with a crosshead speed of 1mm/m. The effect of dentin pretreatment was evaluated by observing pretreated dentin surfaces under the scanning electron microscope, measuring the shear bond strength and observing the fractured surfaces under the scanning electron microscope. The results were as follows : On the SEM observation of surface morphology, the specimens treated with Dentin Conditioner. Ultra-Etch and conditioner of Fuji Plus cement were removed the smear layer and funneled dentinal tubules in dentin surfaces. In $RelyX^{TM}$ Luting cement group, shear bond strength of pretreated group was significantly higher than control group. In Fuji Plus cement group and Fuji I group, regardless of the type of pretreatment agents, there was tendency of increase in the shear bond strength. On the SEM observation of fractured surfaces, as the shear bond strength increase, it were shown thicker cement layers and were not shown dentinal tubules According to these results. it were shown that dentin pretreatment have much effect on bonding states.