• Journal of the Korean Society of School Health
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• v.26 no.3
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• pp.195-204
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• 2013

Purpose: The purpose of this study was to examine the relationship between body image, weight-control self-efficacy, and body mass index of high-school girls. Methods: Body image, gender role identity, weight-control self-efficacy, and body weight control behavior were measured by structured questionnaires. Date were analyzed by descriptive statistics, the t-test, the one-way ANOVA, and Pearson correlation, using the SPSS program. Results: Body weight control behavior was positively correlated with weight-control self-efficacy and objective body mass index. Body weight control behavior showed significant differences according to the interest in weight control, current weight control effort, reasons for weight control, secret method for weight loss, eating breakfast or not, and the amount of time exposed to mass media. In regard to the body weight control behavior according to the gender role identity type, the androgynous showed significantly higher tendency than other types. Conclusion: These findings suggest that health providers need to educate high-school girls about appropriate body image and weight control behavior. Also, more studies are needed to identify factors influencing weight control behavior.

• Journal of Power Electronics
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• v.18 no.4
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• pp.1099-1110
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• 2018

In this paper, a loss minimization control method for interior permanent magnet synchronous motors is presented with considering self-saturation and cross saturation. According to variation of the d-axis and q-axis inductances by different values of the d-axis and q-axis components of currents, it is necessary to consider self-saturation and cross saturation in the loss minimization control method. In addition, the iron loss resistance variation due to frequency variation is considered in the condition of loss minimization. Furthermore, the loss minimization control method is compared with maximum torque per ampere (MTPA), unity power factor (UPF) and $i_d=0$ control methods. Experimental results verify the performance and proper dynamic response of the loss minimization control method with considering self-saturation and cross saturation.

• Journal of the Korean Home Economics Association
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• v.46 no.10
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• pp.147-157
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• 2008

The purpose of this study was to ascertain if psychological home environment and parental verbal control type had gender-specific affects on a child's self-resilience. Questionnaires were used to collect information on 356 children who attend elementary school. The major findings were as follows : (1) Positive correlations were established among psychological home environment and parental verbal control type;(2)Fathers' verbal control type was significantly positively related to a child's gender;(3) Father's verbal control type affected self-resilience of boys, while mother's verbal control type affected self-resilience of girls.

• Journal of Families and Better Life
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• v.27 no.5
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• pp.123-135
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• 2009

The purpose of this study was to investigate the effects of family conflict and self-control on school maladjustments of early adolescents. Subjects of this study consisted 662 middle school students drawn from 4 middle schools in Cheong-ju city. The results of this study were as follows: First, younger students' maladjustment to teachers was influenced by variables such as school year, economic levels, conflict strength between parents, conflict settlement between parents, reliability between parents and children, communication between parents and children and self-control, etc. In other words, students' maladjustment to teachers was high at the students in the 2nd year rather than in the 1st year, low economic level, high conflict strength between parents that younger students perceived, low conflict settlement between parents, low reliability between parents and children, high hostility between parents and children and low self-control. Second, younger students' maladjustment to the class was influenced by variables such as gender, school year, economic levels, conflict strength between parents, reliability between parents and children, communication between parents and children, and self-control, etc. In other words, young students' maladjustment to the class was high at the 2nd year students rather than at the 1st year students, low economic level, high conflict strength between parents, low reliability between parents and children, poor communication between parents and children, and low self-control. Third, younger students' maladjustment to rules was influenced by variables such as school year, economic level, conflict level between parents, hostility between parents and children, and self-control, etc. In other words, younger students' maladjustment to rules was high at the 1st year students rather than the 2nd year students of middle school, low economic level, high conflict strength between parents, high hospitality between parents and children and low self-control, etc. Fourth, younger students' maladjustment to friends was influenced by variables such as conflict strength between parents, conflict settlement between parents, hospitality between parents and children, and self-control, etc. In other words, younger students' maladjustment to friends was high at high conflict strength between parents, low conflict settlement between parents, high hospitality between parents and children and low self-control, etc. In the study, self-control was found to be the most important variable at younger students' maladjustment to teachers, class and rules, etc, and conflict settlement between parents was found to be the most significant variable at younger students' maladjustment to friends.

• Journal of Korean Public Health Nursing
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• v.13 no.2
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• pp.45-58
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• 1999

This study was conducted to compare the practice of health promoting behaviors between hospital workers and government officers. The subjects for this study were consisted of 344 hospital workers in four university hospitals and 340 government officers in four district offices in the Kyong-in area. Data were collected by using constructed questionnaires from January to February in 1997 and analyzed by Chi-square test, t-test. ANOVA, Pearson correlation coefficient and stepwise multiple regression. The results were as follows : 1. There was no significant difference between hospital workers and government officers in practice of health promoting behaviors as a whole. but among five domains of the health promoting behaviors, hospital workers was significantly higher than that of government officer in the domain of health responsibility, while they were significantly lower than those of government officer in the domain of exercise & nutrition and stress management. The mean score of health promoting behavior for hospital workers and government officer were 2.40, and 2.47, respectively. The health promoting behavior in relation to the characteristics of the hospital workers varied significantly according to sex and age. The domain of self-actualization ranked highest in health promoting behaviors of hospital workers, interpersonal support came next. stress management, health responsibility and exercise & nutrition followed them. While those of government officers. the domain of self-actualization ranked highest. interpersonal support came next, stress management, exercise & nutrition and health responsibility followed them. 2. There were no significant difference between hospital workers and government officers in the health perception with mean score of 3.32 and 3.34 respectively, in the self esteem with mean score of 2.82 and 2.84 respectively, in the self-efficacy with mean score of 70.50 and 72.35 respectively. in the internal health locus of control with mean score of 2.95 and 3.03, respectively, m the chance health locus of control with mean score of 2.10 and 2.13, respectively, m the powerful others health locus of control with mean score of 2.39 and 2.46, respectively. 3. The practice of health promoting behavior of hospital workers were strongly associated with self-esteem and self-efficacy, and self-esteem was strongly correlated with self-efficacy. And the practice of health promoting behavior of government officers were strongly associated with self-esteem, powerful others health locus of control and internal health locus of control. and self-esteem was strongly correlated with self-efficacy. 4. The combination of self-esteem, powerful others health locus of control. health perception. self-efficacy. internal health locus of control. age and marital status explained $45.7\%$ of variance of likelihood to engage in health promoting behavior of hospital workers. And the combination of self-esteem. powerful others health locus of control. health perception. self-efficacy. internal health locus of control. sex and marital status explained $48.2\%$ of variance of likelihood to engage in health promoting behavior of government officers.

• Korean Journal of Adult Nursing
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• v.15 no.4
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• pp.660-669
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• 2003

Purpose: The purpose of this study was to identify the effects of self-efficacy promoting program on self-efficacy, self-care, and anxiety in cancer patients receiving chemotherapy. Method: A quasi-experimental nonequivalent control group pre and post design was used. Subjects were 52 cancer patients who received chemotherapy in a hospital. Twenty-six patients were assigned to the experimental and the control groups, respectively. For the experimental group, the CD image for fifteen minutes and two consultations for about ten minutes each were applied. For the control group, ordinary hospital care was applied. The data was collected before and 2 weeks after chemotherapy. Result: The scores of self-efficacy and self-care of the experimental group was higher than those of the control group while the state of anxiety of the experimental group was not lower than that of the control group at posttest. Conclusion: The self-efficacy promoting program about prevention of infection and hemorrhage increased cancer patients' self-efficacy and self-care but did not decrease anxiety. Further study is needed to find other factors to decrease anxiety and nurses need to consider the concept of self-efficacy in cancer patients receiving chemotherapy when they plan to increase cancer patients' self-care.

• East Asian mathematical journal
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• v.38 no.1
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• pp.21-31
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• 2022

This paper is concerned with the optimal control problem associated to the self-organizing target detection model in 1D domains. That is, we show the global existence of weak solution and the existence of optimal control.

• Journal of the Korea Convergence Society
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• v.7 no.4
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• pp.163-172
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• 2016

This research was convergence study conducted to understand the effect that parent-son/daughter communications have on the addiction to smartphones, with stress level, self-control, and self-efficacy as the mediator. The subjects were college students located in J province and K province, and 232 questionnaires were used as the data for analysis. As a result, addiction to smartphones had negative correlations with parent-son/daughter communication, self-control, and self-efficacy and had positive correlations with stress level. In addition, parent-son/daughter communication influenced the degree of addiction to smartphones, with stress level, self-control, and self-efficacy as the mediator. Therefore, in order to reduce college students' addiction to smartphones, programs should be developed specifically and systematically to increase their communication with their parents, and it is necessary to draw up measures to reduce students' stress levels and increase their self-control and self-efficacy levels.

• Journal of Convergence for Information Technology
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• v.7 no.6
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• pp.103-111
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• 2017

The purpose of this study is to identify the factors affecting the adaptation, Self-esteem and self-control of college students to smart addiction. We surveyed 380 university students in Gwangju area. Data were analyzed by t-test, one-way ANOVA, Pearson correlation analysis. Smart phone addiction according to general characteristics showed the lowest in fourth grade and high in health-related majors. Smart phone usage time was the lowest in less than 3 hours due to the actual usage of smart phone. School life adaptation, self-esteem, and self-control according to general characteristics were higher in satisfaction with college life and majors. The most influential factors on the addiction of smart phone were perceived smart phone addiction, and the self-esteem and self-control were more likely to be addicted to smart phone. Therefore, it is necessary to develop education and programs to enhance self-esteem and self-control of college students and to find ways to prevent smart phone addiction.

• Women's Health Nursing
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• v.24 no.4
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• pp.367-378
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• 2018

Purpose: To examine effects of a postnatal care program on self-efficacy, self-management, and glycemic control in women with gestational diabetes mellitus (GDM). Methods: A non-equivalent control group non-synchronized quasi-experimental design was used. Sixty-two women with GDM were enrolled and assigned to either an experimental group (n=30) or a control group (n=32). The experimental group received an intervention which was postnatal care program for women with GDM. The postnatal care program for GDM included an individual education with leaflet and mobile web-based video with three times of telephone counseling. Effects of the intervention were measured with self-efficacy, self-management questionnaire, and a 75 g oral glucose tolerance test (75g OGTT). Statistical significance was examined using independent t-test and $x^2-test$. Results: Although there was no significant difference in 75g OGTT ($x^2=.11$, p=.748) or self-management (t=-1.28, p=.206), there was a statistically significant increase in self-efficacy (t=-2.02, p=.048) in the experimental group compared to that in the control group. Conclusion: A postnatal care program is needed for women with GDM to improve their self-efficacy. Further studies are warranted to improve self-management and glycemic control through tailored education for GDM postpartum women.