• Nuclear Engineering and Technology
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• 제31권3호
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• pp.294-302
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• 1999

The influence of source term release parameters on offsite health effects was examined for the YGN 3&4 nuclear power plants. The release parameters considered in this study are release height, heat content, and release time. The effects of core inventory change as a function of fuel burnup was also examined. The health effects by the change of release parameters are early fatalities, cancer fatalities, and early fatality distance. The results showed that early fatalities and early fatality distance decrease as release height increases, although it does not have significant influence on cancer fatalities. The values of both early and late health effects decrease as heat content increases. As release time increases, health consequence shows maximum value in 2 hours of release time and then decreases rapidly. As fuel burnup increases, early fatalities decrease rapidly, while cancer fatalities increase rapidly. Both cases show little variation afterward. Early fatality distance is almost same in all fuel turnup history. The information obtained through this research is very useful in developing strategies for reducing offsite consequences when combined with the influence of weather conditions on offsite risks.

• International Journal of Advanced Culture Technology
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• 제12권3호
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• pp.355-361
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• 2024

The purpose of the study was to examine the effects of early childhood teachers' professional development and Grit on their teacher-child interactions. The subjects were 363 early childhood teachers working at kindergartens or childcare centers of South Korea. We used self-reporting survey questionnaires to measure the major variables and utilized the SPSS 28.0 Program to analyze the collected data. Cronbach's alphas were calculated and the descriptive statistical analyses were conducted. To investigate the research questions, Pearson's correlation analysis and multiple regression analysis were done. As results, the higher early childhood teachers' professional development and Grit were, the higher their teacher-child interactions were. Early childhood teachers' professional development and Grit were found to have positive effects on their teacher-child interactions, which showed that professional development and Grit would predict the quality of interactions between teacher and young children. Based on these results, we suggest the importance of early childhood teachers' professional development and Grit so that they practice excellent interactions with young children in order to support development and learning through play.

• 통상정보연구
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• 제10권4호
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• pp.63-79
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• 2008

Present paper aims to examine the effect relation among component factors of WOM effects in on-line. Specially, to examine the comparative study on market maven and early adopter. For that purpose, we categorize WOM effect into two subcategories; knowledge improvement, Image improvement, purchase intention. And as the of study, chose student a college. Through these methods, we were able to obtain participation of 96 people from student a college. Using 68 responses(19 responses removed). we derived statistics by means of Win SPSS Version 12.0 statistics program package. The result can be summarized as follow; First, market maven has stronger WOM Effects in On-line on consumer's knowledge improvement, and Image improvement, purchase intention than early adopter. Second, the market maven has stronger effect on early adopter. Finally, we discuss the results of analysis and suggest research limitation and future and future study.

• International Journal of Advanced Culture Technology
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• 제12권3호
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• pp.257-261
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• 2024

The purpose of the study was to examine the relations of early childhood teachers' resilience, empowerment, and job satisfaction, and to investigate the effects of resilience and empowerment on their job satisfaction. The research subjects were 419 early childhood teachers in charge of 3-5 year olds in kindergartens or daycare centers located in South Korea. The collected data were analyzed using the SPSS 28.0 Program. We calculated the Cronbach's alphas and conducted the descriptive statistical analysis, Pearson's correlation analysis, and multiple regression analysis. The results showed the statistically positive correlations between the major variable. The positive effects of early childhood teachers' resilience and empowerment on their job satisfaction were also found. In the relative influence on job satisfaction, the empowerment was greater than resilience. Based on the study results, we suggest academic and practical importance of early childhood teachers' resilience and empowerment, which enables them dedicate on excellent teaching and caring young children via satisfaction with work settings.

• Nuclear Engineering and Technology
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• 제33권6호
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• pp.557-565
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• 2001

Variations in the number of early health effects resulting from the severe accidents of the YGN 3&4 nuclear power plants were examined for different combinations of release parameters and meteorological data . The release parameters and meteorological data were selected in combination to define a limited number of basic spectra characterized by release height, heat content, release time, warning time, wind speed, rainfall rate, and atmospheric stability class. Variant seasonal spectra were also defined in order to estimate the potential significance of seasonal variations as a factor determining the incidence or number of early health effects. The results show that there are large differences in consequences from spectrum to spectrum, although an equal amount and mix of radioactive material is released to the atmosphere in each case. Also, there are large differences in the estimated number of health effects from season to season due to distinct seasonal variations in meteorological combinations in Korea. Therefore, it is necessary to consider seasonal characteristics in developing optimum emergency response strategies.

• International Journal of Advanced Culture Technology
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• 제12권3호
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• pp.441-448
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• 2024

The purpose of the study was to examine the effects of pre-service early childhood teachers' pedagogical content knowledge in mathematics and constructivist educational belief on mathematics teaching efficacy. The subjects were 187 pre-service early childhood teachers who enrolled in universities majoring early childhood education. We used self-reporting survey questionnaires to measure the major variables and utilized the SPSS 28.0 Program to analyze the collected data. Cronbach's alphas were calculated and the descriptive statistical analysis were conducted. To investigate the research questions, Pearson's correlation analysis and multiple regression analysis were done. As results, the higher the levels of pre-service early childhood teachers' pedagogical content knowledge in mathematics and constructivist educational beliefs, the higher their mathematics teaching efficacy. In addition, both pedagogical content knowledge in mathematics and constructivist educational belief were validated as the predictors of increased mathematics teaching efficacy of pre-service early childhood teachers.

• 가정과삶의질연구
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• 제16권2호
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• pp.165-178
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• 1998

The purpose of this study was to explore the effects of family and employment characteristics on the psychological well-being of Korean men in their early/middle adulthood. For this purpose total-sample of 415 married white collar male workers in Seoul were selected. Major findings were as follows; First There was no significant difference between early adulthood and middle adulthood in the level of psychological well-being of married male workers. Second marital satisfaction parental role satisfaction and th employment rate of their spouses were higher among men in the early adulthood whereas the rate of specialized and managerial jobs and job flexibility were higher among men in the middle adulthood. Third parental status parental role satisfaction work flexibility job security and job satisfaction significantly affected the psychological well-being in the early adulthood whereas parental status parental role satisfaction the quality of relationship with colleagues and job s tisfaction had significant effects on it in the middle adulthood.

• 아동학회지
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• 제28권6호
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• pp.73-84
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• 2007

This study investigated the influence of director's leadership on teachers' empowerment and organizational effectiveness in early childhood educational institutes. The subjects in this study were 627 teachers who worked at kindergartens and childcare centers located in Seoul and Gyeonggi province. The results showed that (1) transformational leadership had stronger effects on teacher empowerment than transactional leadership. (2) Directors' transformational leadership had meaningful effects on organizational commitment, but their transactional leadership didn't have effects on commitment. (3) Directors' transformational leadership had stronger effects on job satisfaction and job performance than transactional leadership.

• 대한간호학회지
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• 제37권1호
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• pp.35-43
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• 2007

Purpose: This study was to explore the prevalence of alcohol experiences and to identify the expectancy on the effects of alcohol and alcohol knowledge in early adolescents. Method: The cross-sectional survey of 1854 students from seven middle schools in one district of Seoul was conducted by convenience sampling. Alcohol experience and early onset of alcohol use were measured by the Youth Risk Behavior Survey. Alcohol expectancy was measured by an Alcohol Effects Questionnaire. Result: Over sixty five percent of adolescents reported that they had previous drinking experiences. The participants with no alcohol drinking experience had a lower level of alcohol knowledge than those with experience(t=2.73, p=.007). In expectancy on effects of alcohol, girls had a more positive alcohol expectation than boys(t=-2.54, p=.011). Alcohol knowledge negatively correlated with alcohol expectancy(r=-.40 p=.000). In regression of alcohol expectancy, gender and alcohol knowledge were significant predictors explaining 17%. Conclusion: The results support that alcohol expectancy is an important link with early drinking experiences and alcohol knowledge, focusing on the importance of gender differences. Therefore, an alcohol prevention program in early adolescence is needed and should be focused on multidimensionality of the alcohol expectancy with developmental and psychosocial factors for early adolescents.

• 대한가정학회지
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• 제51권1호
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• pp.97-106
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• 2013

The purpose of this study is to examine the effects of the Seesaw & Swing early intervention program on the positive changes of mothers with young children who come from low-income families. It measures their child-rearing efficacy and their child-rearing behaviors. The Seesaw & Swing early intervention program was developed by the Community Chest of Korea [13]. The subjects for this study consisted of 96 mothers (49 in the service group, 47 in the control group) from low-income families. The instruments used were the child-rearing efficacy scale [4] and the child-rearing behavior scale [29]. The results of this study indicated that the Seesaw & Swing early intervention program produced positive effects in child-rearing efficacy as well as in child-rearing behaviors: namely, healthy-rearing abilities, guidance abilities, and discipline abilities in child-rearing efficacy; and affection, rational guidance, authoritative control, encouragement and concern in child-rearing behaviors. In conclusion, for mothers with young children coming from low-income families, the Seesaw & Swing early intervention program can be said to be an effective parent education program, which goes some way towards ending the intergenerational transition of poverty in Korea.