• 한국가금학회지
• /
• 제39권2호
• /
• pp.105-112
• /
• 2012

Genetic resource conservation of indigenous species is important to conserve terrestrial, aquatic and avian species throughout the world. The native Korean Oge (KO) chickens are important and protected indigenous avian species in Korea. This KO breed is very popular in Korea because of its external appearances of blackish color. The characterization of morphology and growth performances of KO were performed since 1980s, however the information is still not sufficient for breed selection. In this study, we compared various growth performances including body growth, tibia length, shank length, chest width, chest grith and length of tail feather between male and female chickens of KO and widely known White Leghorn (WL) breeds at 1 week, 2 weeks, 5 weeks, 10 weeks, and 24 weeks. We observed differences on various growth performances at different aged groups between KO and WL chickens. This study may help for the selection of chicken breeds based on age, body growth and meat production.

• 한국컴퓨터정보학회논문지
• /
• 제23권8호
• /
• pp.123-131
• /
• 2018

The purpose of this study is to investigate the clinical nursing competence and self-efficacy of 4th and 2nd semester nursing college students who completed most of the performance-based nursing education curriculum. It was attempted to develop competency evaluation and competency-based curriculum. The collected data were analyzed using descriptive statistics, t-test, one-way ANOVA, $scheff{\bar{e}}$ test, Pearson's correlation coefficients and Stepwise multiple regression in SPSS WIN 24.0 program. The findings of this study were as follows. 1) The knowledge level of essential basic nursing skills received a score of 88.95. The overall average score of clinical performance was 3.15 out of 5. The mean score of self-efficacy was $4.14{\pm}0.57$ points on 6 points 2) Among the general characteristics of subjects, 'motivation of major selection' and 'satisfaction of practice time' differed in the knowledge of essential basic nursing skills, 'religion' and 'health status' differed in clinical performance ability and 'interpersonal relationship', 'motivation of major selection', 'major satisfaction', 'satisfaction of practice time', 'nursing satisfaction', 'desired working period' and 'average rating' differed in self-efficacy. 3) The self-efficacy showed a significant positive correlation with the clinical nursing competency including the knowledge of essential basic nursing skills and clinical performance ability. The nursing satisfaction, clinical performance ability, the knowledge of essential basic nursing skills, interpersonal relationship and average rating influenced significantly and explained 23.7% of the subjects' self-efficacy.

• International Journal of Advanced Culture Technology
• /
• 제4권4호
• /
• pp.13-22
• /
• 2016

The purpose of this study is to identify the characteristics of school life and to examine the influencing factors of academic adjustment and social adjustment in university students. This cross-sectional descriptive study by using secondary data from 2,064 subjects who responded to a self-rated student adjustment test. Descriptive, t-test, ANOVA, Pearson correlation and multiple regression analyses were conducted. Satisfaction with college selection, expectation for college, satisfaction with college service, emotional stability, and relationships with faculty were significantly higher among male students, whereas confidence in major, support from others were significantly higher among the female students. There was a significant positive relationship between academic adjustment and confidence in major, and between social adjustment and expectation for college. Confidence in major, relationships with faculty, emotional stability, expectation for college, satisfaction with college selection, and commitment to college life accounted for 31.8% of the variance in academic adjustment. In addition expectation for college, emotional stability, support from others, gender, commitment to college life, and satisfaction with college services accounted for 44.7% of the variance in social adjustment for university students. Overall, the results of this study suggest that understanding the levels of expectation for college, commitment to college life, and levels of emotional stability may be important for facilitating their transition and adjustment to university life.

• 대한간호학회지
• /
• 제37권2호
• /
• pp.213-220
• /
• 2007

Purpose. The purpose of this review is to explore cultural influences on the experiences of Korean, Korean American, and Caucasian American family caregivers caring for frail older adults in terms of the selection of a primary caregiver, caregiving motivation, support/help-seeking, and negative emotional responses (depression and burden). Methods. Seven electronic databases were searched to retrieve studies from 1966 to 2005. Thirty-two studies were identified. Results. This review supported cultural influences on the selection of primary caregiver, caregiving motivation, and support/help-seeking among the three caregiver groups. In Korean caregivers, the major primary caregivers were daughters-in-law while among Korean American and Caucasian American caregivers, the major primary caregivers were daughters or spouses. As a major caregiving motivation, Caucasian American care￢givers reported filial affection while Korean caregivers and Korean American caregivers reported filial obligation. Korean caregivers reported higher extended family support, while Caucasian American caregivers reported higher utilization of formal support. Korean caregivers showed the highest levels of depression followed by Korean American caregivers and Caucasian American caregivers. Conclusion. In order to develop culturally appropriate interventions and policies, more research is needed to further explain these differences among the three groups, especially regarding support/help-seeking and negative emotional responses.

• 농촌계획
• /
• 제30권1호
• /
• pp.81-97
• /
• 2024

This study examines the effects of adopting Information and Communication Technology (ICT) in livestock farm management on farm sales revenue. Using the 2020 Census of Agriculture, Forestry, and Fisheries, a nationally representative data set constructed by Statistics Korea, this study focuses on a sample of 9,020 livestock farms in South Korea. We employ Propensity Score Matching (PSM) methods to address the potential selection bias between 2,076 farms that used ICT for livestock farm management and 6,944 farms that did not. The findings consistently show that the use of ICT significantly increases farm revenue, taking into account the selection bias. The utilization of ICT in livestock farms leads to a higher increase in sales revenue, particularly for farms with greater sales.

• 융합정보논문지
• /
• 제11권3호
• /
• pp.34-45
• /
• 2021

본 연구는 코로나19(COVID-19)라는 위기 상황에서 간호학생의 전공선택동기, 학업 스트레스, 자기효능감 및 대학생활적응 정도를 파악하고, 대학생활적응에 영향을 미치는 요인을 파악하기 위한 서술적 조사연구이다. 2개 지역의 간호학생 243명을 편의모집하였고, 수집된 자료는 SPSS for Windows Ver. 22.0을 이용하여 기술통계, t-test, ANOVA, Scheffé test, Pearson's correlation coefficient, Multiple linear regression으로 분석하였다. 연구결과 전공선택동기와 자기효능감은 높을수록, 학업스트레스는 낮을수록 대학생활적응이 높은 것으로 나타났다. 대학생활적응에 영향을 미치는 요인은 자기효능감, 전공선택동기, 한 달 용돈 금액 순으로 나타났으며, 대학생활적응에 대한 이들 변수의 설명력은 65.6%로 나타났다. 이에 간호학생의 대학생활적응을 높이기 위해서는 자기효능감을 높여주기 위한 대학생활적응 프로그램의 개발 및 적용이 필요하다.

• Plant Breeding and Biotechnology
• /
• 제7권3호
• /
• pp.272-286
• /
• 2019

Developing elite hybrid rice varieties is one important objective of rice breeding programs. Several genes related to male sterilities, restores, and pollinators have been identified through map-based gene cloning within natural variations of rice. These identified genes are good targets for introducing genetic traits in molecular breeding. This study was conducted to breed elite hybrid lines with major genes related to hybrid traits and disease/insect resistance in 240 genetic resources and F₁ hybrid combinations of rice. Molecular markers were reset for three major hybrid genes (S5, Rf3, Rf4) and thirteen disease/insect resistant genes (rice bacterial blight resistance genes Xa3, Xa4, xa5, Xa7, xa13, Xa21; blast resistance genes Pita, Pib, Pi5, Pii; brown planthopper resistant genes Bph18(t) and tungro virus resistance gene tsv1). Genotypes were then analyzed using molecular marker-assisted selection (MAS). Biological assay was then performed at the Red River Delta region in Vietnam using eleven F₁ hybrid combinations and two control vatieties. Results showed that nine F₁ hybrid combinations were highly resistant to rice bacterial blight and blast. Finally, eight F₁ hybrid rice varieties with resistance to disease/insect were selected from eleven F₁ hybrid combinations. Their characteristics such as agricultural traits and yields were then investigated. These F₁ hybrid rice varieties developed with major genes related to hybrid traits and disease/insect resistant genes could be useful for hybrid breeding programs to achieve high yield with biotic and abiotic resistance.

• Journal of Construction Engineering and Project Management
• /
• 제6권3호
• /
• pp.1-7
• /
• 2016

The purpose of this paper is to develop a model for selecting the best contractor in the Gaza Strip using the Artificial Neural Network (ANN). The contractor's selection methods and criteria were identified using a field survey. Fifty four engineers were asked to fill a questionnaire that covers factors related to the selection criteria of contractors practiced in Gaza Strip. The results shows that the dominant part of respondents (91%) confirmed that the current awarding method "the lowest bid price" is considered one of the major problems of the construction sector, "award the bid to the highest weight after combination of the technical and financial scores" represented 50% of the respondents. The criteria weights were determined based on Relative Importance Index (RII. Ninety-one tenders(13 projects) were used to train and test the ANN model after re-evaluating the contractors depend on the weights of factors to select the best contractor who achieves the highest score. Neurosolution software was used to train the models. The results of the trained models indicated that neural network reasonably succeeded in selection the best contractor with 95.96% accuracy. The performed sensitivity analysis showed that the profitability and capital of company are the most influential parameters in selection contractors. This model gives chance to the owner to be more accurate in selecting the most appropriate contractor.

• 대한기계학회논문집
• /
• 제16권4호
• /
• pp.696-706
• /
• 1992

본 연구에서는 공구선정 작업의 자동화를 목표로 하였다.공구선정을 완전 자동으로 행하기 위해 해결해야 할 문제는, 현재 공구대(turret)에 장착되어 있는 공 구중에서 어떤 공구를 얼마칸큼 직선, 회전 이동시키면 판재 경계와 정확하게 일치하 는가 하는 문제와, 복잡한 형상의 펀칭을 위해선 효과적인 공구조합은 어떻게 해야하 나 하는 문제로 귀결되므로 이 두가지 문제의 해결방안을 기술한다.

• 복식문화연구
• /
• 제7권1호
• /
• pp.141-153
• /
• 1999

To be successful, Korean exporters must understand how importers identify and select suppliers. This empirically based study investigate Korean exporter\`s perceptions of the supply selection criteria and information sources in US importers use. The specific purposes of this study were to identify the importance of the supply selection criteria and information sources and to examine the effects of the amount of export on the supply selection criteria and information sources in US importer use. For this study, data were obtained from Korean exporters by means of self-administered questionnaires. The questionnaires consisted of a series of statements covering a broad of specific selection criteria and information sources and exports\` characteristics including average annual amount of export. Using a base of 312 exporters, data were analysed by using mean, one-way ANOVA, and Ducan test. Major findings if this study summarized as follows; 1) Korean exporters perceived that US importers would place importances on product price, deliverly reliability, product wordsmanship-quality, and length of deliverly lead-time, in orders. Also, the more amount of export was, the higher product wordsmanship-quality, availability of piece goods and trims, and communication channel were importantly rate. 2) Korean exporters considered the third party sources, such as recommendation from trade association and buying office and import agency, as the most important information source in US importer use. Also, There was tendency that the more amount of export was, the more information sources on suppliers was importantly evaluated. From this study, several recommendation were suggested forward to encourage export in international apparel market.