• Proceedings of the Korean Operations and Management Science Society Conference
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• 1996.04a
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• pp.407-410
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• 1996

This paper presents how to build a human sensibility database by multivariate method. And, we discribe a fuzzy based inference system which converts human sensibility data to design factors using the human sensibility database. We are able to obtain the values of multiple correlation coeffcient, partial correlation coefficient, and categories by the quantification theory which is multivariate analysis. So, the human sensibility database is constructed from those values. The inference system will be more useful, if the human sensibility database and graphic design factor database were integrated.

• Korean Journal of Child Studies
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• v.16 no.2
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• pp.23-36
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• 1995

The goal of this study was to investigate how adolescents' daily experience of schoolwork and leisure activities relate to depression. A sample of 58 high school seniors reported the amount of time spent in daily activities and their affect states in these activities seven times a day for a week. To evaluate the relationship between daily life experience and depression Pearson correlation analysis was conducted. The significant zero order correlations were followed up by conducting partial correlation analyses using background variables as control variables. While the amount of time spent in schoolwork and leisure activities was not an important factor relating to depression, affect states in specific daily activities were related to levels of depression. In particular, affect states during schoolwork activities were related to depression; however, these states during leisure activities were unrelated to depression. These findings suggest that the everyday manifestation of adolescent depression was not prevalent across daily contexts, but was limited to a specific context.

• Human Ecology Research
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• v.60 no.2
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• pp.231-242
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• 2022

This study examines the relationship of adult attachment, social support, and subjective happiness of university students, and confirm the mediating effect of social support in the relationship between adult attachment and subjective happiness. Participants in this study consist of 284 university students enrolled in G city. Data were analyzed using SPSS and AMOS to conduct descriptive statistics, correlation analysis, and a structural equation model. The main findings are as follows. First, Attachment anxiety and attachment avoidance showed negative correlations with social support and subjective happiness. And social support showed a positive correlation with subjective happiness. Second, social support showed a partial mediating effect on the effect of attachment anxiety and attachment avoidance on the subjective happiness of university students. This study is meaningful in providing basic data for educational and counseling interventions that enhance subjective happiness of university students.

• Korean Journal of Childcare and Education
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• v.20 no.1
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• pp.21-37
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• 2024

Objective: This study explores the correlation between adult attachment, empathy, and teacher efficacy among childcare teachers. Additionally, it analyzes the mediating effect of empathy on the relationship between adult attachment and teacher efficacy. Methods: The survey, conducted from July to August 2023, involved 198 childcare teachers as participants. Data Analysis was performed using SPSS 23.0 and the Process Macro. Results: First, a significant correlation was identified between childcare teachers' adult attachment (avoidance) and empathy, as well as between adult attachment (avoidance) and teacher efficacy among childcare teachers. Second, the study observed a partial mediating effect of empathy in the relationship between adult attachment (avoidance) and teacher efficacy. In essence, this research confirmed both the direct effect of avoidance attachment in childcare teachers on teacher efficacy and the indirect effect mediated by empathy. Conclusion/Implications: This research affirms the impact of adult attachment and empathy on teacher efficacy among childcare teachers, discussing implications for future training and development.

• Child Health Nursing Research
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• v.24 no.1
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• pp.9-17
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• 2018

Purpose: The purpose of this descriptive survey study was to characterize the relationship between clinical decision-making and job satisfaction among pediatric nurses and to elucidate the mediating effects of the nurse-parent partnership on that relationship. Methods: The subjects of the study were 174 nurses who had worked in a pediatric ward in a university hospital, general hospital, or children's hospital. Data were collected from June 20, 2016 to August 10, 2016 and analysed using descriptive statistics, the t-test, analysis of variance, the Pearson correlation coefficient, and three-step mediated regression analysis in SPSS version 22.0 for Windows. Results: The nurse-parent partnership had significant effects on clinical decision-making and job satisfaction, with an explanatory power of 19% and 26%, respectively. The nurse-parent partnership had a partial mediating effect on the relationship between clinical decision-making and job satisfaction (Sobel test: Z=4.31, p<.001). Conclusion: The nurse-parent partnership had a partial mediating effect on the relationship between clinical decision-making and job satisfaction among pediatric nurses. Therefore, in order to improve the job satisfaction of pediatric nurses, it is necessary to develop effective educational programs and strategies to address their clinical decision-making and their experiences of the nurse-parent partnership.

• Journal of the Korean Dietetic Association
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• v.11 no.3
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• pp.365-374
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• 2005

This study was conducted to compare the validity of obese index among body mass index(BMI), waist to hip ratio(WHR), and waist circumference(WC) and to determine which is the best in relation to cardiovascular risk factors of middle aged Korean(40-64yr).Data from the 1998 Korean Health and Nutrition Survey were used(N=3380). Anthropometric indices and cardiovascular risk factors were measured. Chi-square test, analysis of variance following duncan's multiple range test, partial correlation analysis, and Receiver Operator characteristic(ROC) curves were used in the analysis. There was a significant increasing trend in WHR, systolic blood pressure(SBP), high density lipoprotein cholesterol(HDL), and fasting blood sugar(FBS) with age categories of male and in BMI, WC, WHR, diastolic blood pressure(DBP), SBP, total cholesterol(TC), low density lipoprotein cholesterol(LDL), triglycerol(TG), and FBS with those of female. Specially female had the characteristics of upper body fat and systolic blood pressure risk(p<0.05). Proportions of subjects with lifestyle factors related to cardiovascular risk in overweight or upper body fat group were higher than that of normal group. Higher proportions of subjects were practiced exercise in upper body fat group of male than in other groups. Among 7 cardiovascular risk factors in partial correlation analysis, BMI had the highest correlation coefficient in 6 risk factors in male, whereas WC in 4 risk factors in female. Mean of each obese index according to cardiovascular risk groups except smoker was higher than that of normal(p<0.05). These trends were shown in upper body fat group and female. In ROC analysis of 12 risk factors and health conditions, the largest area under curve among obese indices for risk factors were BMI in male and WHR in female. The optimal cutoff values of each index(BMI: WHR: WC) for one or more cardiovascular risk factors were 23.13: 0.89: 85.35 in male and 23.57: 0.84: 78.35 in female. The results showed that cardiovascular risk factors were prevalent in middle aged Koreans within normal limits of obese indices like another Asians. For the identification of cardiovascular risk factors of middle aged Koreans, BMI for men and WHR for women are appropriate indices. But it is recommended that BMI, WHR, and WC, all three indices should be considered, when using these indices.

• Korean Journal of Childcare and Education
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• v.13 no.4
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• pp.19-35
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• 2017

Objective: This study aimed to investigate the mediating effect of stress-coping strategies of childcare teachers' creative personality on teacher efficacy. Methods: Study subjects were 204 childcare teachers working at nursery schools located in S city of Gyeonggi province, and this study collected materials from childcare teachers through a self-report survey. For materials collected, this study conducted frequency analysis, correlation analysis and multiple regression analysis using spss 21.0, and verified the mediating effect through the Sobel Test. Results of this study are as follows. Results: First, there was a positive correlation among creative personality, teacher efficacy and stress-coping strategies. Second, results show that stress-coping strategies mediate the effect of childcare teachers' creative personality on teacher efficacy. Lastly, problem-focused coping strategies turned out to be full mediation, whereas coping strategies seeking social support was partial mediation. Conclusion: Based on the results, this study suggested the necessity to prepare a practical plan for enabling childcare teachers to use stress-coping strategies in a successful way.

• Journal of the Korean Home Economics Association
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• v.45 no.7
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• pp.35-48
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• 2007

The purpose of this study was to examine the difference between the depression and anxiety related with maternal attachment security and those with self-esteem. The study subjects were 240 children's mothers from seven Community Social Welfare Service Centers in Seoul, Incheon, and Pyeongtaek, including those from 1st graders to 6th graders of 2 elementary schools in Seoul. Consequently, a total of 200 mothers were selected for this study. The data in this study were analyzed with SPSS 12.0 program by frequency analysis, technical statistics analysis, Cronbach's $\alpha$, Pearson's correlations, partial correlation analysis, and two-way ANOVA. The results of this study are as follows: (1) Paternal attachment security and maternal attachment security indicated a moderate level of negative correlation with depression and anxiety. Self-esteem showed a high level of negative correlation with depression and anxiety. For self-esteem, we divided the subjects into two groups of high and low self-esteem. In the former, anxiety was significantly negatively correlated with paternal attachment security and depression was not significantly correlated with maternal attachment security and paternal attachment security. In the low group, neither depression nor anxiety showed meaningful correlation with paternal attachment security and maternal attachment security. (2) Married women's depression and anxiety had a main effect both in paternal attachment security and self-esteem level, and in maternal attachment security and self-esteem level. However they had no interactive effect in paternal attachment security and self-esteem level, and in maternal attachment security and self-esteem level.

• Korean Chemical Engineering Research
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• v.45 no.1
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• pp.87-92
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• 2007

Recently, developments of process monitoring system in order to detect and diagnose process abnormalities has got the spotlight in process systems engineering. Normal data obtained from processes provide available information of process characteristics to be used for modeling, monitoring, and control. Since modern chemical and environmental processes have high dimensionality, strong correlation, severe dynamics and nonlinearity, it is not easy to analyze a process through model-based approach. To overcome limitations of model-based approach, lots of system engineers and academic researchers have focused on statistical approach combined with multivariable analysis such as principal component analysis (PCA), partial least squares (PLS), and so on. Several multivariate analysis methods have been modified to apply it to a chemical process with specific characteristics such as dynamics, nonlinearity, and so on.This paper discusses about missing value estimation and sensor fault identification based on process variable reconstruction using dynamic PCA and canonical variate analysis.

• Environmental Mutagens and Carcinogens
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• v.22 no.4
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• pp.303-311
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• 2002

This study evaluated the concentrations of urinary metabolites of polycyclic aromatic hydrocarbons (PAHs) in industrial waste incineration workers. The effect of genetic polymorphisms of xenobiotic metabolism enzymes on urinary concentration of PAH metabolites was assessed. And, aromatic DNA adduct levels were also determined in total white blood cells. Fifty employees were recruited from a company handling industrial wastes located in Ansan, Korea: non-exposed group (n=21), exposed group (n=29). Sixteen ambient PAHs were determined by GC/MSD (NIOSH method) from personal breathing zone samples of nine subjects near incinerators. Urinary 1-hydroxypyrene glucuronide (1-OHPG), a major pyrene metabolite, was assayed by synchronous fluorescence spectroscopy after immunoaffinity purification using monoclonal antibody 8E11 (SFS/IAC). Multiplex PCR was used for genotyping for GSTMI/TI and PCR-RFLP for genotyping of CYP1A1 (MspI and Ile/Val). PAH-DNA adducts in peripheral blood WBC were measured by the nuclease P1-enhanced postlabeling assay. Smoking habit, demographic and occupational information were collected by self-administered questionnaire. The range of total ambient PAH levels were 0.00-7.00 mg/㎥ (mean 3.31). Urinary 1-OHPG levels were significantly higher in workers handling industrial wastes than in those with presumed lower exposure to PAHs (p=0.006, by Kruskal-Wallis test). There was a statistically significant dose-response increase in 1-OHPG levels with the number of cigarettes consumed per day (Pearson correlation coefficient=0.686, p<0.001). Urinary 1-OHPG levels in occupationally exposed smoking workers were highest compared with non-occupationally exposed smokers (p=0.053, by Kruskal-Wallis test). Smoking and GSTMI genotype were significant predictors for log-transformed 1-OHPG by multiple regression analysis (overall model R²=0.565, p<0.001), whereas smoking was the only significant predictor for log-transformed aromatic DNA adducts (overall model R²=0.249, p=0.201). Aromatic DNA adducts was also a significantly correlation between log transferred urinary 1-OHPG levels (pearson's correlation coefficient=0.307, p=0.04). However, the partial correlation coefficient adjusting for Age, Sex, and cigarette consumption was not significant (r=0.154, p=0.169). The significant association exists only in individuals with the GSTMI null genotype (pearsons correlation coefficient=0.516, p=0.010; partial correlation coefficient adjusting for age, sex, and cigarette consumption, r=0.363, p=0.038). Our results suggest that the significant increase in urinary 1-OHPG in the exposed workers is due to higher prevalence of smokers among them, and that the association between urinary PAH metabolites and aromatic DNA adducts in workers of industrial waste handling may be modulated by GSTMI genotype. There results remain to be confirmed in future larger studies.