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      • KCI등재후보

        Arachidonic acid 대사산물이 배양골조직의 골흡수에 미치는 영향에 관한 연구

        오귀옥,김세원 대한구강생물학회 1989 International Journal of Oral Biology Vol.13 No.2

        This experiment was performed to study the arachidonic acid metabolites (prostaglandin E_2, leukotriene B_4 and HETE) and indomethacin of the bone resorption and the effect of indomethacin on the PGE_2-stimulated bone resorption in the organ culture. Ulnae and radii or calvaria were removed from 19-day fetal rats prelabelled by subcutaneous injection of 200 μCi ^45CaCl_2 into mother rats at the 17th day of gestation. The control groups were cultured in fresh BGJb media, while experimental groups were cultured in media containing PGE_2 (10^-6M), indomethacin (10^-5M), leukotriene B_4 (0.1pM, 1pM, 10pM, 100pM and 1nM) or HETE (0.1pM, 1pM, 10pM, 100pM and 1nM) for 48 or 72 hours. Radioactivities of ^45Ca released into media and remained in bone after culture were respectively determined. The effects of each drugs were observed by the ratios of %-release of ^45Ca between control and experimental group. The observed results were as follows. 1. PGE_2, at concentration of 10^-6M, increased ^45Ca release significantly after 24 and 48 hours of culture. 2. Indomethacin, at concentration of 10^-5M, decreased ^45Ca release after 24 and 48 hours of culture, but there was no significant difference. 3. LT and HETE, at all concentrations, had no effect on the bone resorption after 72 hours of culture. 4. Indomethacin, at concentration of 10^-5M, had no effect on the PGE_2-stimulated bone resorption after 72 hours of culture.

      • KCI등재후보

        Streptococcus mutans에서의 세포외다당류 합성효소의 활성에 미치는 수종약물의 영향

        오귀옥,정동균 대한구강생물학회 1980 International Journal of Oral Biology Vol.4 No.1

        Streptococcus mutans synthesize insoluble glucans from sucrose by the cell-associated and extracellular glucosyltransferase and these glucans gives the characteristic adhesive nature to the plaque which contains S. mutans. As the insoluble glucans in dental plaque apparently play a cardinal role in the cariogenic otential of S. mutans inhibition of glucan synthesis could be a contributory factor in the prevention of dental plaque, and ultinatively dental caries. The water extract of capsicum and several antibacterial compounds, including surface-active agents previously shown to be plaque inhibiting, were tested for their effect on glucan synthesis by an extracellular glucosyltransferase preparation from S. mutans B-13. The results were as follows. 1. Crude enzyme preparation was found to contain 0.23 unit/ml of enzyme activity (1 unit transforms 1 μmole of sucrose in 1 minute) as measured turbidimetrically and also by measuring the incorporation into polysaccharide of radioactivity from radioactive sucrose. 2. Surface-active agents (chlorhexidine, cetylpyridinium, sodium lauryl sulfate) were found to be potent inhibitors of enzyme activity. Both electrostatic and hydrophobic interactions appear to be occurring between the cation of test agents and the glucosyltransferases, with hydrophobic interaction being more important for enzyme inhibition. 3. Iodine preparation (providone iodine) was also found to inhibit enzyme activity perhaps through the iodination mechanism. 4. Some unknown agents in water extract of capsicum could stimulate the enzyme activity in the presence of strong inhibitory effect of glucose.

      • 거주지역과 나이에 따른 유아의 장독립성 인지양식

        나귀옥 순천향대학교 1994 논문집 Vol.17 No.3

        A group of 96 young children were administered the Preschool Embedded Figures Test (PEFT). A two way analysis of variance was performed utilizing residence (big city, small city) and gender as indepdendent variables. Neither the residency main effect nor gender main effect were statistically significant. The interaction effect between residence and gender was not significant either. The two way analysis of variance utilizing age (6.2 yrs, 5.1 yrs) and gender as independent variables yielded a significant age difference on the PEFT. Older children scored higher on the PEFT than younger children. However, the interaction effect between age and gender was not significant.

      • KCI등재
      • 인지적 도덕발달이론의 단계이행과정에 대한 분석

        문경상,나귀옥 순천향대학교 1994 논문집 Vol.17 No.1

        The purpose of this study is to re-examine the differences between traditional modes of Kohlberg's moral developmental theory and the assumption of Kim Sang-yun. Kim's moral developmental theory is that stage 2 and P are of cognitive features whereas stage 3 and 4 are noncognitive, and there are differences between boys and girls in moral development. The hypotheses set up in this study are as follows. In the stage of morality related to cognitive characteristics Hy.1-1 Morality of stage 2 will reveal differences with increasing age. Hy.1-2 Morality of stage P will reveal differences with increasing age. In the stage of morality related to noncognitive characheristics Hy.2-1 Morality of stage 3 will reveal no differences with increasing age. Hy.2-2 Morality of stage 4 will reveal no differences with increasing age. In the trend of moral development between the sexes Hy.3-1 There will be no sex differences in morality of stage 2 and stage P. Hy.3-2 There will be sex differences in morality of stage 3 and stage 4. This study covered the period from February 8 to 13, 1993. The object of this study sampled at random are 6th graders of a primary school. 2nd graders of a middle school, and 1st graders of a high school in Sosan in Chunguam. The number of whole sampling was 412. The 186 samples were meaningless and without consistency. At last 226 samples were used on this study. This study used Rest's DIT translated by Kim and Park. The average score of the groups was analyzed by One-Way ANOVA and the differences between the groups by Tukey test. The result of this study is that there was a meaningful difference in the average score between the age groups in stage 2 and 3, and that there was a trend in which the score gets lower with increasing age. On the other hand, moral development of stage 4 didn't reveal any meaningful difference in the average score between the age groups. And morality of stage P reveals the meaningful difference of the average score in the different age groups and the average score increased with age. In moral development, there is no sex difference in stage 2, 3, and 4, but the girls are different from the boys in stage 4. This corresponds with Kim's study. The following conclusions are derived from the result. First, Kim suggests like this : morality contains both cognitive and noncognitive characterstics, and in the developmental trend related to cognitive characteristics, stage 2 and P can be replaced, whereas stage 3 and stage 4 related to noncognitive characteristics are adopted at the very early age and last without regard to age. But Kim's assumption can not be proved validity. Second, Kim's assumption that the developmental trend in stage 2 and P reflecting cognitive charcteristics will reveal sex differences has no validity. The cognitive theory of moral development that the sex differences have no influence on moral development can be more valid.

      • KCI등재

        취업주부와 전업주부의 성역할 정체감과 우울수준의 비교

        이수영,조옥귀 경남대학교 인문과학연구소 2000 人文論叢 Vol.13 No.-

        The differences of depression levels between career women who are also responsible for house works and housewives who devote themselves mainly to our traditional female's roles are studied from the viewpoint of occupation and sex role identity in this thesis. Two hundred and twenty four career women and two hundred housewives are sampled for this from teachers, public officials, nurses, insurance saleswomen, and so on. Beck depression Inventory and Bem Korea Sex Role Inventory are used as a measuring tool. The median values of masculinity and femininity scores are calculated. Then the whole people is divided as four groups (1)Androgyny group, who are those of both scores than median values. (2) Masculine group, who are those of the only masculinity score higher than median. (3) Feminine group. who are those of the only feminine score higher than median, (4) Undifferentiated group, who are those of both scores than lower than median. The results may be summarized as follows. First, career women's depression level is lower than that of housewives. The difference has significance of p<.01. Second, the depression level of androgyny group is lowest among the all groups and the difference has significance of p<.001. Third, the effects of co-relation between having occupation and sex role identity has no significant difference. However, it is worth to indicate that masculine group shows lower depression level than feminine in the case of career women and conversely, in the case of housewives, feminine group shows lower level than masculine group. It is recommended, in the future, that the more women are studied from wider areas and occupations in order to overcome their depression and the relationship between sex role and depression of man is also studied for happiness of home.

      • 어머니의 취업이 양육태도 및 아동의 성격에 미치는 영향

        김신형,나귀옥 순천향대학교 1994 논문집 Vol.17 No.3

        The aim of this study is to analyze the influences of the mother's employment on her child rearing attitude and her children's personality. And the subdivisicnal aim is to provide aids for mothers who are at work about desirable child education by investigating a) the influence of mother's employment status on her child rearing attitude and her children's personality, b) the realtionship between mother's child rearing attitude perceived by children and children's personality, c) the realtionship between mother's recognition of her employment and her children's personality. In order to analyze above tasks I randomly selected 180 persons who are 60 sixth grade students and their mothers at work and 60 sixth grade students whose mothers are not at work respectively at elementary schools in Cheonan. One-way analysis of variance was employed using mothers employment status as independent variable and child rearing attitude scores observed by children and children'personality as dependent variables. And I tested the relationship among mother's child rearing attitude, mother's recognition of her employment, and her children's personality by computing Pearson product moment correlation coefficient. The results of this analysis are summed up as follows. Mother's employment influenced children's personality partly but not entirely and there was no significant difference in mother's child rearing attitude according to mother's employment status. Also irrespective of mother's employment status children who are conscious of their mother's child rearing attitude as receptive are shown to have more self-control and responsibility and children whose mother experienced difficuilties in childbirth owing to employment are conscious of much more achievement pressure. In short, because children's personality development is much more influenced by mother's child rearing attitude than by mother's employment status, mothers at work should have desirable nurturing attitude and by qualitatively enhancing the time which mother interacts with children.

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