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평생교육강사의 프로티언 경력태도와 주관적경력성공의 관계에서 셀프리더십의 매개효과
유수란,배을규,이민영 한국직업교육학회 2018 職業 敎育 硏究 Vol.37 No.6
The purpose of this study was to identify the meditating effect of self leadership on the relationship between protean career attitude and subjective career success of lifelong learning educators. Based upon the results, several theoretical and practical suggestions were made to enhance self leadership, protean career attitude and subjective career success of lifelong learning educators. A survey questionnaire for this study was composed of four parts, such as the measurement tool of Protean Career Attitude(Briscoe, Hall & Demuth, 2006), Self Leadership Scale(Houghton & Neck, 2002), Subjective Career Success(Career satisfaction Scale: Greenhaus, Parasuraman & Wormley, 1990; Job Satisfaction Scale: Mobley, Jarret, Marsh & Lim, 1994; Employability Inventory: Johnson, 2001) and demographics. The subjects in this study were lifelong learning educators in Incheon. The survey questionnaires from 450 respondents were gathered, and the data from 426 respondents were used for analysis. The results of this study were as follows: First, protean career attitude of the lifelong learning educators had direct effect on subjective career success positively. Second, protean career attitude of the lifelong learning educators had indirect effect on the subjective career success with the partial mediating effect of self-leadership. Finally, based upon the above results, some implications and limitations of this study were discussed. 이 연구는 평생교육강사의 프로티언 경력태도와 주관적 경력성공의 관계에서 작용하는 셀프리더십의 매개효과를알아보고, 이들 간 관계에 대한 이론적 시사점 및 실천적 제언을 하고자 하였다. 연구의 목적을 달성하기 위해Briscoe, Hall과 Demuth(2006)의 프로티언 경력태도 측정도구, Houghton과 Neck(2002)의 셀프리더십 측정도구와Greenhaus 외(1990)의 경력만족, Mobley 외(1994)의 직무만족, Johnson(2001)의 고용가능성 측정도구를 사용하여 설문조사를 실시하였다. 인천지역 평생교육강사를 대상으로 총 450부를 배포하여 430부가 회수되었고, 회수된 430부중 불성실한 응답이라 판단되는 4부를 제외한 426부를 최종 분석에 사용하였다(유효 자료율: 95.6%). 수집된 자료는측정도구의 타당도 및 신뢰도를 검증하기 위해 확인적 요인분석을 실시했고, 연구의 가설을 검정하기 위해 구조방정식 모형 분석을 실시하였다. 분석 결과, 평생교육강사의 프로티언 경력태도는 주관적 경력성공에 직접적인 정(+)의 영향을 미치고 있었고, 셀프리더십의 매개를 통해 간접적 영향을 미쳤다. 이상의 연구결과를 바탕으로 평생교육사의 프로티언 경력태도, 셀프리더십과 주관적 경력성공의 관계에 대한 이론적 시사점과 각 변인들의 수준을 향상시킬 수 있는 몇가지 실천적 방안을 제시하였다.
Quantitative trait loci controlling the amino acid content in rice (Oryza sativa L.)
유수철 한국식물생명공학회 2017 JOURNAL OF PLANT BIOTECHNOLOGY Vol.44 No.4
The amino acid composition of rice is a major concern of rice breeders because amino acids are among the most important nutrient components in rice. In this study, a genetic map was constructed with a population of 134 recombinant inbred lines (RILs) from a cross between Dasanbyeo (Tongil-type indica) and TR22183 (temperate japonica), as a means to detect the main and epistatic effect quantitative trait loci (QTLs) for the amino acid content (AAC). Using a linkage map which covered a total of 1458 cM based on 239 molecular marker loci, a total of six main-effect QTLs (M-QTLs) was identified for the content of six amino acids that were mapped onto chromosome 3. For all the M-QTLs, the TR22183 allele increased the trait values. The QTL cluster (flanked by id3015453 and id3016090) on chromosome 3 was associated with the content of five amino acids. The phenotypic variation, explained by the individual QTLs located in this cluster, ranged from 10.2 to 12.4%. In addition, 26 epistatic QTLs (Ep-QTLs) were detected and the 25 loci involved in this interaction were distributed on all nine chromosomes. Both the M-QTLs and Ep-QTLs detected in this study will be useful in breeding programs which target the development of rice with improved amino acid composition.