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        검색결과 1,591

        1584.
        1997.12 KCI 등재 서비스 종료(열람 제한)
        This study has been conducted to investigate the mating behavior, time sequence of mating and time limit with which female can fulfill spawning and brooding after pre-spawning molting in the giant fresh-water prawn, macrobrachium rosenbergii reared in the laboratory. the results obtained were summarized as follows. Mating happened spontaneously as the following sequences: courting gesture, seizure of female by male, mounting, turning of female, copulation. The entire mating lated approximately seven minutes. The endopodite of 2nd pleopod of male bore the appendix masculins whcih are male's secondary sex characteristic. cinciulli was formed at the distal portion of appendix interna which are on the upper portion of appendix masculins and helped stabilizing the connection of each side of 2nd pleopod during mating. After the connection of each side of 2nd plepod was fixed on the posterior portion of the thoracic sternum in female, a gelatinous spermatophore that emitted at the basipodite of 5th pereiopod during courting gesture was deposited on the ventral groove of 2nd, 3rd, 4th and 5th pereiopod. time limit which female can fulfill copulation and brooding was from 3 hours to 15 hours after pre-spawning molting.
        1585.
        1997.12 KCI 등재 서비스 종료(열람 제한)
        This study has been conducted to investigate the molting behavior and the effects of rearing temperature and day length on molting in the behavior and the effects of rearing temperature and day length on molting in the giant freshwater prawn, Macrobrachium rosenbergii reared in the laboratory. The results obtained were summarized as follow: 1. After pre-spawning molting, the protopodites of 1st, 2nd, 3rd, and 4th except 5th pleopod bore new breeding setae which conserve eggs in the brooding chamber and the basis of 3rd, 4th, and 5th pereiopods bore new breeding dresses which transport the ovulated eggs into the brooding chamber. 2. Adult females reared in 27.5- molted 10-12 times per year at interval of 27-35 days, of which four or six moltings were common molting for growth and another four or five moltings were pre-spawning molting for spwaning and brooding. In winter season, pre-spawning molting did not happen to most of adult females in spite of the same temperature. 3. Duration of intermolt cycle was 31-38 days and 26-30 days at 25.3- and 28.7- of rearing temperature, respectively.
        1588.
        1991.11 KCI 등재 서비스 종료(열람 제한)
        The study of personality has intrigue psychologists for most of twentieth century. Sport psychologist have been no exception, almost six hundered orignal studies of the relationship of personality to sport performance had been conducted by the mid-1970s alone. The present review deals with investigations which have been directed toward an understanding of the personality characteristics of various athletic sub-groups and between athletes and non-athletes. The purpose of this study was to determine possibility to change through sport activities through review of literature. It was found that athletes more emotional stability, aggressiveness, self-control and outgoing activities, and lower anxiety than those of non-athletes, and sport sub-groups were differently formed in personality characters because they were differently placed situation and experience.
        1589.
        1990.11 KCI 등재 서비스 종료(열람 제한)
        In every reciprocal crosses of self pollination, interspecific pollination through ordinary stigma pollination of L. longiflorum and L. × elegans, pollen vigorously germinated in stigma, and pollen tube was growing. But, 5 days after pollination, pollen tube stopping their growth in the same style as was observed in the cross of self pollination and interspecific pollination. Intrastylar pollination of L. × elegans and L. longiflorum passed stylar cannal through the basal part of styles. But, pollen tube that was growing to the ovule of the ovary was extremely small. In morphogical observation of ovary 10 days after pollination, it was observed, that every reciprocal crosses of L. longiflorum × L. × elegans was fertilized through intrastylar pollination, so that this technique was used to overcome cross incompatibilities.lities.
        1590.
        1988.12 KCI 등재 서비스 종료(열람 제한)
        본 연구는 인간관계 교육 프로그램을 통하여 친화적인 아동들의 인간관계를 형성하여 비사회적 행동을 교정하고자 시도한 현장 실천 연구이다. 현대 산업 사회의 가속적인 발전과 인구의 도시 집중화로 인한 학급당 인구수의 증가, 시험 등은 지나친 경쟁심과 이기심을 불러 일으켰고 그 결과 인간의 존엄성을 상실하게 하였으며 교사와 학생의 관계는 물론 학생상호간의 관계 마저 저해하고 있다. 이와 같은 문제점으로 인하여 몇몇 어린이는 학교에서 즐겁고 재미있게 생활하지 못하고 지나치게 위축되어 있거나 고립되어 있다. 따라서 이와 같이 고립되어 있거나 위축되어 있는 어린이를 발견하고 친화적인 인간관계를 형성할 수 있는 분위기를 조성하여 비사회적인 아동들의 문제행동을 교정해서 그들로 하여금 즐겁고 보람된 나날을보낼 수 있도록 하는데 연구의 목적을 두고 본 연구를 추진하였으며 구체적인 목적은 다음과 같다.
        1591.
        1988.12 KCI 등재 서비스 종료(열람 제한)
        어떻게 하면 학생들을 보다 잘 가르칠 것이냐 하는 교사의 당면과제를 해결하기 위해서는 교사들의 수업행동을 설명.예언하고 나아가 이를 통제할 수 있는 기초연구가 필요에 따라 본 연구에서는 첫째, 도덕적판단수준이 높은 교사와 낮은 교사들이 각기 수업분석법의 10개 항목에 소비하는 시간량의 관계를 탐색해 봄으로서 도덕적판단수준에 따른 수업의 경향성을 밝히고, 둘째, 도덕적판단수준에 따라 교사들이 어떻게 수업활동을 전개하고 있는 지를 밝히는데 그 목적이 있다. 이러한 목적을 달성하기 위하여 도덕적판단수준에 따라 교사간에는 수업활동에 차이가 있을 것이란 기본가정하에 본 연구에서 해결할 문제를 다음과 같이 설정하였다.