기업의 재무성과와 환경성과의 관련성에 관한 연구

이경주,이춘덕 제주대학교 경상대학 경영경제연구소 2001 경영경제연구 Vol.3 No.-

캔디다균이 분비하는 단백질 분해효소의 순수 분리와 특성 및 교차 항원성

이경호,신운섭,박주영,김수기,박윤선,고춘명 연세대학교 원주의과대학 1995 원주의대논문집 Vol.8 No.1

아동과 청소년이 지각한 부모의 양육행동과 심리사회적 적응

이주희,이춘재 가톨릭대학교 사회과학연구소 2003 社會科學硏究 Vol.19 No.-

본 연구에서는 아동과 청소년이 지각한 부모의 양육행동과 심리, 사회적 적응의 지표인 자기개념, 또래수용, 문제행동의 상호관계와 경로를 알아보았다. 이를 위해, 초등학교 5학년과 중학교2학년 학생 922명이 양육행동과 자기개념, 문제행동척도 등 약120여 개의 문항으로 구성된 질문지를 작성하였으며, 각 학급별로 또래거명법을 실시하여 또래수용도를 측정하였다. 그 결과, 초등학생과 중학생 모두가 어머니가 아버지보다 더 애정·수용적이라고 보고하였고, 초등학생은 어머니가 아버지보다 더 통제적이라고 보고하였다. 군집분석으로, 부모애정·수용 유형, 어머니 통제유형, 아버지 통제유형의 세 유형을 분류하였다. 부모 애정·수용유형은 모든 변인에서 가장 적응적이었다. 어머니 통제 유형의 여아는 전반적 자기-가치감이 낮았고, 어머니 통제유형의 초등학생은 사회적 수용에 대한 자기개념이 낮았다. 또래수용도는 어머니 통제유형의 여자중학생이, 그리고, 아버지 통제유형의 남자 중학생이 더 낮았다. 중학생은 아버지 통제유형>어머니 통제유형>부모 애정·수용 유형의 순으로 내면화문제행동 수준이 높았다. 마지막으로, 구조방정식 모형 검증 결과, 부모의 애정·수용적 양육행동은 자기개념을 매개로 문제행동에 간접적인 영향을 미치나, 강압적 통제는 문제행동에 미치는 간접효과와 직접효과가 모두 유의하였다. 또한, 강압적 통제의 문제행동에 대한 직접효과는 또래수용도가 낮을 때 더 컸다. This research is to examine the effects on perceived parenting on psychological adjustment of children and adolescents. For this purpose, 922 children and adolescents were surveyed with 120 questionnaires, concerning parenting, peer acceptance, self-perception scale of Harter, K-YSR. First, as the result of confirmatory factor analysis, 2 factors model that warmth·acceptance and coercive control was more appropriate than pervious four factor structure. And than, the cluster analysis of subjects produced three cluster and each type of parenting contributed specifically to each type of clusters to analysis effect on adjustment of children and adolescents. First parenting type (high warmth·acceptance and low coercive control or father and mother in all) is the most adaptive on self-concept, peer acceptance and level of behavior problems. Parenting effect of other two type(high coercive control of mother/high coercive control of father) is differentiated on sex and grade of subjects. The relation among several adjustive characteristics that lead to peer acceptance and behavioral problems was examined by means of path analysis method of EQS. The results indicated that the self-concept is fully mediating between parental warmth·acceptance and behavioral problems and partially mediating between parental coercive control and behavioral problems. The mediate effect of the self-concept between peer acceptance level and behavioral problems was investigated. The results showed that has different effect size in the path of coercive parenting depending on the level of peer acceptance. The mediate effect of self-concept was more strong when was high level of peer acceptance in the path of coercive control. The implications and limitations of the study were discussed along with some suggestions for future researches on parenting.

CONVERGENT THEOREM FOR FUZZY MAPPING

이희춘,김주목 尙志大學校 生産技術硏究所 1998 生産技術論叢 Vol.6 No.-

퍼지 확률변수의 개념과 그의 기대값을 정의함으로써, 퍼지사상의 수준집합의 성질과 응용성을 연구하였다. 또한, 어떤 조건하에서의 퍼지사상에 대한 수렴정리를 증명하였다.

Aggregate Packet Process having Pareto distribution as Source

이희춘,김주목 尙志大學校 生産技術硏究所 1998 生産技術論叢 Vol.6 No.-

독립적이며 같은 분포를 갖는 ON/OFF source를 갖는 패킷을 고려하자. ON/OFF source가 무한한 분산을 갖는 파레토분포일 때, 누적 패킷확률과정이 브라운 운동 ??와 경과된 시간 t에 대한 일차 결합 ???(t) 으로 표현된다. 이 때, 파레토 분포의 평균과 자체-유사 계수 H 에 의존되며 정하여지는 상수 a, b를 구하였다.

사회봉사활동 교육과정 운영 연구

이동규,이영춘,조주연 서울敎育大學校 學生生活硏究所 1998 學生生活硏究 Vol.24 No.-

This study is a base research on which the Seoul National University of Education implements the subject of 'Social Service Activities' as part of the formal curriculum. The purpose of this study was to suggest a systematic program for the curriculum implementation. The major research methods of this study were the analysis of precedent literature regarding Social Service Actities, and the interview method. As the research results, this study presents the discussion products regarding the concept·characteristics·contents of social service activites, the present situation of service activites in Korea and other countries, the preparation/attitude of university students who are going to practise those activites. As far as the concrete curriculum implementation is concerned, this study suggests twofold specific ideas. First, this study presents ideas on the curriculum form such as regarding in which semeter the subject is open, how students apply for the subjects, how to designate advising professors, what is the role of the professors, how to evaluate the activity results of students, and how to select the relevant institutions in which the activities are carried out. Second, this study suggests to construct an curriculum implementation committee and to make a implementaion guide. The committee is supposed to carry out manage/control the social service curriculum, and consider important matters on the curriculum impletation.

광원의 종류에 따른 복합레진의 중합거동 및 중합률에 관한 연구

류주희,이인복,유현미,김미자,석창인,권혁춘 大韓齒科保存學會 2004 Restorative Dentistry & Endodontics Vol.29 No.4

Objectives: The purpose of this study was to observe the reaction kinetics and the degree of polymerization of composite resins when cured by different light sources and to evaluate the effectiveness of the blue Light Emitting Diode Light Curing Units (LED LCUs) compared with conventional halogen LGUs. Materials and Methods: First, thermal analysis was performed by a differential scanning calorimeter(DSC). The LED LCU (Elipar Freelight, 320㎽/㎠) and the conventional halogen LCU (XL3000, 400㎽/㎠) were used in this study for curing three composite resins (SureFil, Z-250 and AEliteFLO). Second, the degree of conversion was obtained in the composite resins cured according to the above curing mode with a FTIR. Third, the measurements of depth of cure were carried out in accordance with ISO 4049 standards. Statistical analysis was performed by two-way ANOVA test at 95% levels of confidence and Duncan's procedure for multiple comparisons. Results: The heat of cure was not statistically different among the LCUs (p > 0.05). The composites cured by the LED (Exp) LCUs were statistically more slowly polymerized than by the halogen LCU and the LED (Std) LCU (p< 0.05). The composite resin groups cured by the LED (Exp) LGUs had significantly greater degree of conversion value than by the halogen LCU and the LED (Std) LCU (p = 0.0002). The composite resin groups cured by the LED (Std) LGUs showed significantly greater depth of cure value than by the halogen LCU and the LED (Exp) LGU (p < 0.05).

방선균 WCM-9가 생산하는 Polyene 항진균성 항생물질(AF1)의 생물학적 성상

신운섭,정선호,이동희,이경호,김수기,박주영,고춘명 대한의진균학회 1996 대한의진균학회지 Vol.1 No.1

Background: Pathogenic fungi infect humans, especially immunocompromised patients, with superficial or deeply invasive pattern. In the past 20 years, fungal infections have been increased dramatically resulted by increment of organ transplantation, cancer, AIDS patients, or use of broad-spectrum antibacterial agents. Fungal infections are now important causes of morbidity and mortality of hospitalized patients. but there is no effective antifungal antibiotics as well as antibacterial antibiotics Objective: Effective new antifungal antibiotics are needed for the treatment of mycosis. So in an effort to develop effective antifungal antibiotics, we screened over 600 isolates of Streptomyces spp. from soil. Methods: Antifungal producing strain was selected using disk diffusion method, An antifungal substance (AF1) was purified with ethyl acetate extraction, silica gel column chromatography and reverse phase HPLC. MICs of AF1 were detected by agar dilition method. Results: The compound showed UV maxima of 307, 321, 340, 359 nm indicating methylpentaene. Minimum inhibitory concentrations of the AF1 were 3.7 ㎍/ml against mold, and 3.7 - 7.4 ㎍/ml against Candida species. AF1 was also active against Cryptococcus neoformans, with MIC of 0.9 ㎍/ml. The concentration of AF1 for K^+ ion release from human red blood cell and hemolysis were 5 ㎍/ml. Conclusion: The antibiotic purified from culture broth of Streptomyces sp. WCM-9 was a polyene antifungal antibiotic which have broad spectrum antifungal activity.

배양 조건이 Candida albicans의 phospholipase 생성에 미치는 영향

신운섭,이경호,박주영,고춘명 대한의진균학회 1997 대한의진균학회지 Vol.2 No.2

Background : The dimorphic yeast, Candida albicans, is considered as a dangerous opportunistic pathogen in immunocompromised hosts. Several phospholipases of C. albicans are known to be secreted into the culture medium. Phospholipases have been proposed as a virulence factor in the pathoenesis of Candida infections. Objective : In order to investigate enzyme production, we examined culture condition of secreted phospholipase production from C. albicans. Methods : C. albicans ATTCC 10231 was cultivated in various media at 37℃ for 3 days. Phospholipase activity was measured by fatty acid soap precipitaiton in plate containing 0.04T lecithin, 0.1 M citrate buffer, pH 4.2 and 1.5% noble agar. Results : Phospholipase was highly induced when C. albicans was cultivated in broth medium(containing glucose 2%, albumin 0.2% and Fe^++ ion 0.01%) and Saboulaud's dextrose agar supplemented with 0.01% sodium deoxycholate. Conclusion : Highly induction of secreted phospholipase by albumin from C. albicans may be play an importans role in tissue invasion in the pathogenesis of C. albicans.

제주 차귀도 연안해역 미생물 분포 및 이화학적 특성

문영건,김만철,이준백,송춘복,여인규,김종만,박근태,손홍주,최우봉,허문수 한국환경과학회 2006 한국환경과학회지 Vol.15 No.3