• Korean Journal of Child Studies
• /
• v.29 no.2
• /
• pp.109-124
• /
• 2008

The objective of this study was to identify how child's gender, temperament, mother's stress and their interactions predict parenting behavior. The subjects were 97 2-year-olds(47boys; 50girls) and their mothers. Data were gathered by questionnaires. Results of a series of hierarchical regression analyses showed combinations of variables that predicted parenting behaviors : (1) mothers reported higher over-protectiveness toward girls and when they were under higher stress. (2) An interaction effect showed that mothers with sons who had higher 'difficult' temperaments reported greater over-protective parenting under greater stress. (3) There were no significant differences in over-protective parenting under low stress, regardless of the level of difficult temperament. (4) Mother's stress was a strong predictor of supportive parenting behaviors.

• Journal of Preventive Medicine and Public Health
• /
• v.42 no.2
• /
• pp.89-95
• /
• 2009

Objectives : To assess the protective effects of wearing protective devices among the residents and volunteers who participated in the cleanup of the Hebei Spirit oil spill. Methods : A total of 288 residents and 724 volunteers were surveyed about symptoms, whether they were wearing protective devices and potential confounding variables. The questionnaires were administered from the second to the sixth week following the accident. Spot urine samples were collected and analyzed for metabolites of 4 volatile organic compounds(VOCs), 2 polycyclic aromatic hydrocarbons(PAHs), and 6 heavy metals. The association between the wearing of protective devices and various symptoms was assessed using a multiple logistic regression adjusted for confounding variables. A multiple generalized linear regression model adjusted for the covariates was used to test for a difference in least-square mean concentration of urinary biomarkers between residents who wore protective devices and those who did not. Results : Thirty nine to 98% of the residents and 62-98% of volunteers wore protective devices. Levels of fatigue and fever were higher among residents not wearing masks than among those who did wear masks(odds ratio 4.5; 95% confidence interval 1.23-19.86). Urinary mercury levels were found to be significantly higher among residents not wearing work clothes or boots(p<0.05). Conclusions : Because the survey was not performed during the initial high-exposure period, no significant difference was found in metabolite levels between people who wore protective devices and those who did not, except for mercury, whose biological half-life is more than 6 weeks.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.12 no.2
• /
• pp.653-664
• /
• 2011

In this study, I collected materials through the survey whose object is 573 students of technical high schools and 512 students of academic high schools in Seoul and Kyunggi areas, for examining dangerous factors and protective factors which influence on school resilience in technical high schools. The studying results are as followed. First, as the result of analyzing correlation between school resilience and dangerous factor, the higher dangerous factor was, the lower school resilience was. Second, as the result verifying the effects of dangerous factor on school resilience, discrimination of teacher, delinquency bond and anti-sociality made an effect on students in technical high schools and discrimination of teacher, delinquency bond and depression made an effect on students in academic high schools. Third, as the result analyzing correlation between school resilience and protective factor, the higher protective factor was, the higher school resilience was. Forth, as the result verifying the effects of protective factor on school resilience, support of teacher, democratic atmosphere of school, sense of responsibility, family cohesion, self-worth, rational supporting attitude made an effort on students in technical high schools and support of teacher, democratic atmosphere of school, sense of responsibility and family cohesion made an effect on students in academic high schools. Fifth, as the result analyzing the difference between dangerous factor and protective factor according to grade of school and standard of school resilience, there was an interaction in variables of anti-sociality, depression, delinquency bond and self-worth.

• Journal of the Korean Home Economics Association
• /
• v.43 no.2
• /
• pp.143-158
• /
• 2005

The purpose of this study was to determine the protective factors that strengthen the adaptation ability by analyzing individual, family, and social activities variables which impact on the adjustment of retired men. The sample for final data analysis was 233 questionnaires completed by retired men aged from 45 to 65 years living in Seoul and the Metropolitan area. Statistical analyses were carried out using SPSS/WIN which included Frequencies, t-test, one-way ANOVA, and regression analysis. The results were as follows: 1. The degree of the retired men's adaptation was 3.22 out of 5. 2. The retired men's adaptation was affected by the variables in the following order: marital satisfaction, economic life satisfaction, acceptance for retirement, recreational facilities satisfaction, recognition for retirement, and cohesion. These variables explained 65.3% of the retired men's adaptation to life. The findings of this study could be utilized as basic data for developing educational programs and guiding policy-making to help retired men achieve development.

• Journal of Fisheries and Marine Sciences Education
• /
• v.29 no.3
• /
• pp.732-745
• /
• 2017

The purpose of this study was to analyze the influence of collective self-esteem on teachers' job stress. For the study, 223 teachers in elementary school, junior high school, and high school were selected and data on teachers' background variables, collective self-esteem, and job stress were collected. The relationship between variables was analysed by using multiple regression analysis. The results were as follows: The job stress of teacher was significantly different according to teacher's gender, school level, and career experience. When the influence of background variables was controlled and multiple regression analysis was performed, the group self-esteem of teachers had a great influence on mitigating the perception of job stress. Particularly, it was shown that private collective self-esteem and importance to identity are the most important factors in mitigating job stress perception among the sub-variables of collective self-esteem. These results showed that it is an important task for our society to find an effective way to elevate the teacher's collective self-esteem. Teachers' collective self-esteem is expected to play a positive role not only in mitigating job stress but also in enhancing self-fulfillment and personal self-esteem of teacher.

• Proceedings of the KIEE Conference
• /
• 2001.05a
• /
• pp.290-293
• /
• 2001

This paper presents the reach accuracy of a distance relay for protection of transmission line according to power system conditions. The apparent impedance of distance relay is considerably affected by source impedance, load current, power factor, fault point and resistance etc. For protective coordination on the variables power system parameters, trip characteristics of distance relay at sending and receiving terminal are discussed.

• The Korean Journal of Applied Statistics
• /
• v.9 no.1
• /
• pp.1-15
• /
• 1996

This paper discusses the effectiveness of an infection rate under a certain disease on an immunity rate by a protective inoculation. A sequence of dependense models concerning the infection rate is derived by defining conditionally nested binary random variables for the analysis of polytomous data with hierarchical response scale. Maximum likelihood estimates based on the marginal log-likelihood functin are obtained numerically in the Nelder and Mead's(1965) simplex method.

• Journal of Fisheries and Marine Sciences Education
• /
• v.26 no.3
• /
• pp.510-524
• /
• 2014

The purpose of this study was to investigate the influence of teacher efficacy and collectivistic self-esteem on alleviation of teacher burnout. In order to achieve these research purpose, data were collected from 161 elementary and secondary school teachers using teacher efficacy scale, collectivistic self-esteem scale and psychological burnout scale. Collected data were analyzed using correlation analysis and hierarchical multiple regression. The major results of statistical analyses were as follows: First, generally background variables were significantly associated with burnout and therefore, background variables were controlled in the analysis of teacher efficacy and collectivistic self-esteem. Second, teacher efficacy influenced on the total burnout(38%) and sub-factors which were emotional exhaustion(27.3%), depersonalization(20.7%) and diminished personal accomplishment(36.1%), and collectivistic self-esteem influenced on the total burnout(38.8%) and sub-factors which were emotional exhaustion(27.1%), depersonalization(29.6%) and diminished personal accomplishment(25.1%). Third, the analysis of additional influence of collectivistic self-esteem in addition to the influence of teacher efficacy on teacher burnout revealed additional influence in the alleviation of total burnout(18.2%), emotional exhaustion(13.9%), depersonalization(16.6%) and diminished personal accomplishment(10.3%). These results showed that teacher's collectivistic self-esteem is an important factor in the alleviation of psychological burnout with teacher efficacy which was well known as a protective factor for psychological burnout. Based upon the above results, implications of these results and limitations of this study were discussed.

• Journal of Nutrition and Health
• /
• v.34 no.2
• /
• pp.165-175
• /
• 2001

We performed case-control study to evaluate relationship between food intake and risk of breast cancer. We interviewed breast cancer cases(n=108) who were newly histologically identified and selected from Hanyang and Soonchunhyang University Hospital in Seoul. We used hospital-based control subjects(n=121), who were selected from the patients in the department of plastic surgery, general surgery and opthalmology of the same hospital by frequency matching. Matching variables were age($\pm$4 age) and menopausal status. We collected information on general characteristics of subjects, history of disease, family history of breast cancer, vitamin supplementation, alcohol intake, and food intake through individual interview. Dietary information was ascertained via a food frequency questionnaire method(total item=98). All analyses was conducted according to menopausal status. Especially, pepper and grape intake in premenopausal women, showed protective effect in breast cancer. Otherwise consumption of meat, pork, and fish was not associated with breast cancer risk in this study. At milk and dairy products, milk intake was associated with lower risk of breast cancer in postmenopausal women and overall intake of soy products was associated with breast cancer risk, but not significant. These findings suggested that consumption of some fruit and vegetable intake was a protective factor on breast cancer and further study with more number of subjects should be need to evaluate the breast cancer risk. (Korean J Nutrition 34(2): 165~175, 2001)

• Korean Journal of Human Ecology
• /
• v.18 no.6
• /
• pp.1199-1208
• /
• 2009

The purpose of this study was to understand a mother's parenting behavior and home environment in relation to the stress of a male child. The subjects were 200 mothers of 4-6 years old children in early childhood programs located in Seoul and Gyeonggi province. Instruments used in this study were the Mother's Parenting Behavior Scale (Park Seong Yeon & Lee Suk, 1990), Home Scale (Jang Yeong Ae, 1981), and Children's Usual Stress Scale (Yeom Hyeon Gyeong, 1998). Data was analyzed by descriptive statistics, Pearson's correlation, and multiple regression analysis. Results indicated that (a) stress was shown to be higher if the mother's parenting behavior was authoritarian and over-protective, (b) children of lower economic background showed a higher stress level than middle and upper economic background subjects, and (c) the mother's educational background, authoritarian and over-protective parenting behavior and quality of the family background were meaningful variables for children's stress.