• Journal of Families and Better Life
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• v.34 no.6
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• pp.41-54
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• 2016

The purpose of this study was to examine the effects of husband's emotional support and mother-teacher partnership on maternal parenting stress. The participants in this study consisted of 216 mothers with children(aged 4-5years). Husband's emotional support was measured by the Parenting Alliance Inventory(PAI, R. R. Abidin, 1988) revised by R. R. Abidin and J. F. Brunner(1995). Mother-teacher partnership was measured using the Caregiver-Parent Partnership Scale(A. M. Ware, B. Barfoot, A. S. Rusher & M. T. Owen, 1995) revised by M. T. Owen, A. M. Ware and B. Barfoot(2000). Parental Stress was measured by the Parenting Stress Index-Short Form(PSI-SF, R. R. Abidin, 1995) revised by M. E. Haskett, L. S. Ahern, C. S. Ward and J. C. Allaire(2006). The data were analyzed through mean, standard deviation, t-test, ANOVA, Pearson's correlation, and hierarchical multiple regression. The results of this study were as follows: First, the mean score of husband's emotional support was higher than average and the mean score of mother-teacher partnership was an average level. Parenting stress was lower than average. Second, there were statistically differences in maternal parental stress according to number of children and mother's educational level. Third, husband's emotional support and mother-teacher partnership were influenced by maternal parental stress. The results of this study are important because they show mothers, fathers, and teachers ways to reduce maternal parental stress.

• Journal of Environmental Science International
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• v.15 no.12
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• pp.1125-1139
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• 2006

The cluster analysis of diurnal precipitation patterns is performed by using daily precipitation of 59 stations in South Korea from 1973 to 1996 in four seasons of each year. Four seasons are shifted forward by 15 days compared to the general ones. Number of clusters are 15 in winter, 16 in spring and autumn, and 26 in summer, respectively. One of the classes is the totally dry day in each season, indicating that precipitation is never observed at any station. This is treated separately in this study. Distribution of the days among the clusters is rather uneven with rather low area-mean precipitation occurring most frequently. These 4 (seasons)$\times$2 (wet and dry days) classes represent more than the half (59 %) of all days of the year. On the other hand, even the smallest seasonal clusters show at least $5\sim9$ members in the 24 years (1973-1996) period of classification. The cluster analysis is directly performed for the major $5\sim8$ non-correlated coefficients of the diurnal precipitation patterns obtained by factor analysis In order to consider the spatial correlation. More specifically, hierarchical clustering based on Euclidean distance and Ward's method of agglomeration is applied. The relative variance explained by the clustering is as high as average (63%) with better capability in spring (66%) and winter (69 %), but lower than average in autumn (60%) and summer (59%). Through applying weighted relative variances, i.e. dividing the squared deviations by the cluster averages, we obtain even better values, i.e 78 % in average, compared to the same index without clustering. This means that the highest variance remains in the clusters with more precipitation. Besides all statistics necessary for the validation of the final classification, 4 cluster centers are mapped for each season to illustrate the range of typical extremities, paired according to their area mean precipitation or negative pattern correlation. Possible alternatives of the performed classification and reasons for their rejection are also discussed with inclusion of a wide spectrum of recommended applications.

• Journal of Korean Society of Occupational and Environmental Hygiene
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• v.21 no.3
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• pp.146-155
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• 2011

Objectives: This study was conducted to investigate the association between job stress and mental health among male and female workers in a large electric manufacture company. Methods: A cross-sectional study was carried out on 3,228 employees who participated in annual medical check-up working in a large electric manufacture company in Gyeonggi Province. Medical check-up and self-administrated questionnaire were performed at the same time. Korean Occupational Stress Scale Short Form (KOSS-SF) and Psychosocial Wellbeing Index Short Form (PWI-SF) were applied to assess occupational stress and mental health. Hierarchical multiple linear regression and multiple logistic regression were performed to estimate the association between job stress and mental health. Results: The proportion of high risk of mental health was 17.1% in male, and 46.9% in women. Job stress had a greater effect on mental health than other general and work characteristics. All subscales of job stress were revealed to affect mental health. Bad occupational climate and lack of reward are the strongest risk factors in mental health of male and female respectively. Conclusions: Our results suggest that job stress could affect mental health among large electronic manufacture workers.

• Journal of Conservation Science
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• v.36 no.1
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• pp.1-14
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• 2020

This study investigates the crystallinity distribution of ancient silk. Owing to the inherent multi-hierarchical structure of silk protein and the complicated structural changes that occur due to various burial environments, it is challenging but worthwhile to study ancient silk ageing behavior, which is based on the fact that ageing begins with a single fiber and then spreads to a whole fabric. Crystallinity was one of the most effective indicators found to reveal the ageing status of silk. Therefore, a synchrotron radiation-based X-ray diffraction(SR-XRD) method was employed to study the crystallinity distribution of single fibers of ancient silk unearthed from seven archaeological sites in China from historical periods including the warring states, Han dynasty, Song dynasty, and Ming dynasty. In comparison, the conventional X-ray diffraction method, which uses large amounts of samples, was also performed to determine the integral crystallinity of ancient silk. Thermal stability experiments by thermogravimetry(TG) as well as morphology observations by scanning electron microscopy(SEM) and optical microscopy(OM) all confirmed the deterioration of ancient silk. Moreover, the ageing mechanism of ancient silk was proposed with the assistance of an artificial ageing study. The results confirmed the effectiveness of SR-XRD as an ageing indicator, revealing the crystallinity distribution. This research could provide motivation to determine the deterioration status of ancient silk, and would also aid in explaining the fragility of ancient silk due to ageing.

• Journal of the Korean Society for information Management
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• v.19 no.3
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• pp.5-30
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• 2002

In this paper, classification feature is selected with focus of musical content, note sequences pattern, and measures similarity between note sequences followed by constructing clusters by similar note sequences, which is easier for users to search by showing the similar note sequences with the search result in the CBMR system. Experimental document was $\ulcorner$A Dictionary of Musical Themes$\lrcorner$, the index of theme bar focused on classical music and obtained kern-type file. Humdrum Toolkit version 1.0 was used as note sequences treat tool. The hierarchical clustering method is by stages focused on four-type similarity matrices by whether the note sequences segmentation or not and where the starting point is. For the measurement of the result, WACS standard is used in the case of being manual classification and in the case of the note sequences starling from any point in the note sequences, there is used common feature pattern distribution in the cluster obtained from the clustering result. According to the result, clustering with segmented feature unconnected with the starting point Is higher with distinct difference compared with clustering with non-segmented feature.

• Knowledge Management Research
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• v.13 no.4
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• pp.31-54
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• 2012

This study examines whether employees' legitimacy perceptions of corporate social responsibility (CSR) affect their organizational citizenship behavior (OCB). It also investigates whether CEO's visionary leadership can moderate this causal relationship. CSR legitimacy is defined in the current study as employees' personal beliefs about the appropriateness of corporate CSR activities. In fact, employees evaluate the appropriateness of CSR activity based on its consistency with corporate philosophy (e.g. corporate mission, vision, and values) which functions as employees' referencial belief structure. If CSR activity is perceived as one of firm's effort to fulfill its mission, vision, and values, which means that espoused theory and theory-in-use of CSR activity are congruent, employees will consider firm's CSR activity as legitimate. If, however, employees think that CSR activity is not congruent with firm's mission, vision, and values, which means that espoused theory and theory-in-use of CSR activity are inconsistent, they will perceive that CSR activity of their firm is not legitimate. In the current study, we propose that employees who perceive that the CSR activity of their firm is legitimate are more likely to engage in OCB. In addition, we hypothesize that CEO's visionary leadership can strengthen the positive effect of employees' perception of CSR legitimacy on their OCB. We tested these hypotheses with the sample of 383 employees from 32 companies listed on DJSI (Dow Jones Sustainability Index) Korea 2009. We employed the HLM (hierarchical linear modeling) program to decompose the multi-level random effects. We found that CSR legitimacy perceptions of employees increase employees' OCB and that CEO's visionary leadership moderates this relationship. We discussed implications of these findings in more detail.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.21 no.11
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• pp.2089-2094
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• 2017

Altmetrics is the measurement index and quantitative data to complement the traditional indicators based on the citation. Altmetrics research has acquired greater importance in the past few years, partly due to the complement to the traditional bibliometrics. This paper aims to reveal the research status and trends in altmetrics research. A total of 187 articles from 2005 to 2017 are obtained and analyzed, illustrating a steady rise (S-mode) in altmetrics research since 2005. Using social network analysis and co-word analysis, the author cooperation network and keyword co-occurrence network are developed. The core scientists and eight international research groups are discovered, reflecting that researchers in this field have a low degree of cooperation. Four topics of altmetrics research are discovered by hierarchical clustering. The results can be useful for the advanced research of altmetrics.

• Journal of Korean Academy of Nursing
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• v.47 no.1
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• pp.133-141
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• 2017

Purpose: The aim of this study was to identify the relationship between awareness of nutrition labeling and menstrual cycle irregularity in women from a nationally representative sample of the Korean population. Methods: A cross-sectional analysis was performed using hierarchical multi-variable logistic regression analysis models. A total of 4,324 women aged 19~54 years from the 2010~2012 Korean National Health and Nutrition Examination Survey participated in the study. The participants were classified into three groups based on self-report responses to a questionnaire about their awareness of nutrition labels: Reading, Not-Reading, and Not-Knowing Groups. Results: The Reading, Not-Reading, and Not-Knowing Groups comprised 46.4%, 44.9%, and 8.7% of the participants, respectively, and 53.6% of the participants had never used nutrition labels. In the Not-Knowing Group, irregular menstrual cycles for more than 3 months were significantly more common than women with irregular menstrual cycles for up to 3 months and women with regular menstrual cycles. Women in the Not-Knowing Group were more likely to exhibit menstrual cycle irregularity (adjusted odds ratio: 1.63, 95% confidence interval: 1.10~2.41) compared to women in the Reading Group after adjusting for age, body mass index, smoking status, alcohol intake, exercise regularity, stress, depression, suicidal ideation, metabolic syndrome, age at menarche, parity, and use of oral contraceptives. Conclusion: No awareness of nutrition labeling appears to be associated with a higher prevalence of menstrual cycle irregularity in a nationally representative group of Korean women.

• Journal of muscle and joint health
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• v.22 no.1
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• pp.1-12
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• 2015

Purpose: The purpose of this study was to explore the relationships among pain, depression, health behaviors, and activities of daily living (ADL) in older adults after femur fracture surgery. Methods: This was a descriptive correlational study. Ninety seven outpatients aged 65 or older were selected, who agreed to participate and visited the four hospitals located in G providence. Numeric Rating Scale (NRS) for pain, a Short form Geriatric Depression Scale (SGDS) for depression, health behavior scale and Korean version of Bathel Index for ADL were used. Data were analyzed using t-test and ANOVA, Pearson's correlation and the hierarchical regression analysis in SPSS 18. Results: Pain and depression were positively correlated (r=.35, p<.001). Pain and health behaviors (r=-.30, p=.010), pain and ADL (r=-.21, p=.044), depression and health behaviors (r=-.51, p<.001), depression and ADL (r=-.29, p=.004) were negatively correlated. The variables affecting the ADL was intake of a painkiller or not (${\beta}$=-.32), age (${\beta}$=-.25), transitional period after discharge (${\beta}$=.23) and depression (${\beta}$=-.23). ADL was accounted for 33.4% in total by these four variables. Conclusion: Interventions for alleviating pain, and managing depression would be effective in enhancing ADL in older adults after femur fracture surgery.

• Korean Journal of Childcare and Education
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• v.8 no.4
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• pp.33-51
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• 2012

The purpose of this study is to investigate the effect of social support and self-efficacy for parenting task on parent involvement of early childhood education. Subjects were 181 mothers with children ranging in age from three to five years old. Instruments used in this study were: 1) Self-efficacy for parenting task index(Colemen, Karraker, 2000), 2) Social support(Shin, 1997 ; Lee, 2006) and 3) Parent involvement(Conduct Problem Prevention Research Group(CPPRG), 1995; 2002). Data were analyzed using Pearson's correlation and hierarchical multiple regression analysis. Results of this study show that self-efficacy for parenting related to children's achievement and recreation, social support from the husband were positively correlated to the parent involvement of early childhood education. Also, mothers' self-efficacy for parenting task mediated between social support and parent involvement of early childhood education.