• Korean Journal of Child Studies
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• v.35 no.3
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• pp.1-14
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• 2014

This study examined the moderated mediating effect of stress by self-concept on the influence of ego-resiliency on school adjustment in children. The participants consisted of 278 4th-graders, who completed self-report questionnaires designed to assess ego-resiliency, school adjustment, self-concept, and stress. The results indicated the following: First, stress mediated the effect of ego-resiliency on school adjustment. Second, self-concept moderated the effect of stress on school adjustment. Third, the mediating effect of stress on the influence of ego-resiliency on school adjustment was moderated by self-concept. The mediating effect of stress was statistically significant when self-concept was positive, but was not statistically significant when self-concept was negative. Methods to improve children's school adjustment are also included, based on the results of this research.

• The Korean Journal of Community Living Science
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• v.17 no.4
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• pp.137-149
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• 2006

The purpose of this study was to examine the relation of middle school students' stress in relation to certain variables, those of grade, gender, academic achievement, coping behavior and self-concept. The subjects were 574 students selected from 4 middle schools in the Incheon area. The instruments included a stress index, coping behavior questionnaire and self-concept inventory. The statistics used from this data were t-test, one-way ANOVA (Scheff test), correlation analysis and multiple regression analysis. This study showed that middle school students' stress was influenced significantly by the grade, gender and achievement in school. Also, coping behavior and self-concept were influenced significantly by the grade, gender, and achievement in school. Correlation analysis indicated that student's stress and certain coping behavior were postively correlated, especially avoidance coping behavior indicated a higher correlation to students' stress than active coping behavior. The relationship between stress and self-concept indicated a negative high correlation. It was also found that avoidance coping behavior, family self-concept, general self-concept, school and class self-concept, grade and academic achievement were significant predictors of middle school students' stress.

• Journal of Korean society of Dental Hygiene
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• v.18 no.3
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• pp.399-410
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• 2018

Objectives: The purpose of this study was to examine the current status of the relationship between clinical practice stress, satisfaction and self-concept of dental hygiene department students in order to effectively implement the clinical practice, which is a necessary course for professional dental hygienists. Methods: The subjects in this study were 299 dental hygiene department students who participated in clinical practice. The survey was conducted from November 1, 2017 to December 31, using self-filling questionnaire (INJE 2017-08-004-002). Statistical analysis was conducted to identify the clinical practice characteristics, clinical practice stress, satisfaction and self-concept and the results according to clinical practice characteristics were compared through t-test and ANOVA. The regression analysis was conducted to identify the effects on self concept. Results: Clinical practice stress, satisfaction and self concept were identified to be significant(p<0.01). Multiple regression analysis results of the factors affecting self concept of study subjects showed that self concept was statistically significant in grade, education programs and satisfaction. Conclusions: Self-concept, clinical practice stress and satisfaction were significantly correlated. In order to raise the quality of clinical practice and to become a professional dental hygienist, it is necessary to continue research on the measures to improve the stress management and satisfaction in clinical practice for establishing self-concept.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.19 no.2
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• pp.120-127
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• 2008

Objectives : The aim of this study was to examine the effects of maternal sociodemographic characteristics, especially education and employment, and parenting stress on the child's self-concept. Attention was also paid to the mediating impact of parenting style on the relationship between the maternal variables and a child's self-concept. Methods : A questionnaire and three scales were completed by fifth graders and their mothers, and 270 sets of paired data were analyzed. Results : The results showed that mothers with higher education experienced less child-related parenting stress, were perceived to be more achievement-oriented and rational by their children, and also had children with more positive self-concept. The relationship between maternal education and child's self-concept was mediated by the rationality dimension of parenting style. Maternal employment was not related to parenting stress, parenting style and most aspects of the child's self-concept. Lastly, child-related parenting stress had a negative effect on the child's self-concept, and this effect was mediated by the warmth and rationality dimensions of parenting style. Conclusion : Parenting style had a mediating effect on the relationships between the child's self-concept and maternal education and child-related parenting stress.

• Journal of Families and Better Life
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• v.27 no.2
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• pp.227-241
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• 2009

This study examined to find out mediating variable between ordinary stress and anxiety-depression. The subjects were 2,844 4th grade elementary school in Korea. The instruments used were questionnaires about anxiety-depression, ordinary stress, anger control ability and negative self-concept. Data were analyzed by t-test and regression. Major findings were as follows: (1) There were significant difference in parent-, appearance-, possession-related stress, anger control ability, negative self-concept and anxiety-depression according to sex. (2) Parent-, schoolwork-, peer-, appearance-related stress and anger control ability had a significant effect on the anxiety-depression. The principal finding was that anger control ability had mediating role between ordinary stress(schoolwork-, peer-, appearance-related stress) and anxiety-depression in male, one side parent-related stress and anxiety-depression in female. (3) Parent-, schoolwork-, peer-, appearance-related stress and negative self-concept had a significant effect on the anxiety-depression. The principal finding was that negative self-concept had mediating role between ordinary stress(parent-, schoolwork-, peer-, appearance-, possession-related stress) and anxiety-depression in male, one side parent-, peer-related stress and anxiety-depression in female.

• Journal of Korean Academy of Nursing
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• v.38 no.3
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• pp.353-362
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• 2008

Purpose: This study was conducted to analyze and clarify the meaning of the concept for relocation stress -focusing on patients transferred from an intensive care unit to a general ward. Methods: This study used Walker and Avant's process of concept analysis. Results: Relocation stress can be defined by these attributes as follows: 1) involuntary decision about relocation, 2) moving from a familiar and safe environment to an unfamiliar one, 3) broken relationship of safety and familiarity, 4) physiological and psychosocial change after relocation. The antecedents of relocation stress consisted of these facts: 1) preparation degrees of transfer from the intensive care unit to a general ward, 2) pertinence of the information related to the transfer process, 3) change of major caregivers, 4) change in numbers of monitoring devices, 5) change in the level of self-care. There are consequences occurring as a result of relocation stress: 1) decrease in patients' quality of life, 2) decrease in coping capacity, 3) loss of control. Conclusion: Relocation stress is a core concept in intensive nursing care. Using this concept will contribute to continuity of intensive nursing care.

• Transactions of Materials Processing
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• v.10 no.6
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• pp.449-456
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• 2001

The concept of stress wave was introduced through the quantized kinetic energy which is related to the potentional energy change of atom, molecular bond energy. Differentiated molecular bond energy $\varphi$() by the lst order displacement u becomes force F(F = d$\varphi$($u_i$)/du), if resversely stated, causing physically atomic displacement $u_i$. Such physical phenomena lead stress(force/area of applied force) can be expressed by wave equation of linearly quantized physical property. Through the stress wave concept, formation of dislocation, which could not explained easily from a theory of continuum mechanics, can be explained. Moreover, this linearly quantized stress wave equation with a stress concept for grains in a crystalline solid was applied to three typical metallic microstructures and a simple shape. The result appears to be a product from well treated equations of a quantized stress wave. From this result, it can be expected to answer the reason why the defect free and very fine diameters of long crystalline shapes exhibit ideal tensile strength of materials.

• The Korean Journal of Rehabilitation Nursing
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• v.17 no.2
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• pp.81-89
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• 2014

Purpose: The purpose of this study was to define the relationships between job stress, professional self-concept, and job satisfaction among nurses in rehabilitation units and to identify factors that influence job satisfaction. Methods: This study surveyed 240 nurses working at the rehabilitation units of 10 hospitals located in G City. To collect the data, nurses' job stress, the professional self-concept of nurses instrument (PSCNI), and the Korean-Minnesota Satisfaction Questionnaire (K-MSQ) were used. The data were analyzed through t-tests, ANOVA, Pearson's correlation coefficient, and multiple regression using the SPSS/WIN 18.0 program. Results: The scores for job stress, professional self-concept, and job satisfaction were $3.34{\pm}0.61$, $72.36{\pm}8.64$ and $3.17{\pm}0.39$, respectively. Job satisfaction and job stress showed a low-level negative correlation with statistical significance (r=-.13, p=.042), whereas a medium-level positive correlation was found between job satisfaction and professional self-concept (r=.46, p<.001). Job stress, professional self-concept, total career length and size of working hospital explained approximately 25.8% of job satisfaction (F=17.52, p<.001). Conclusion: Considering the results in this study, it is necessary to develop a practical educational program to establish positive professional self-concept for nurses in rehabilitation units. Such efforts must be supported by clinical nursing administrations through policies aimed at reducing job stress and increasing job satisfaction.

• The Journal of Korean Academic Society of Nursing Education
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• v.22 no.4
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• pp.452-461
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• 2016

Purpose: This study was conducted to investigate the relationships among communication competence, professional self-concept, and stress in clinical practice of nursing students. Methods: The study participants were 308 senior year nursing students in D city and K province. Collected data were analyzed using t-tests, analysis of variance, Pearson's correlation coefficient, and stepwise multiple regression with the SPSS Version 20.0. Results: There were significant differences in participants' stress of clinical practice based on their level of satisfaction on clinical practice, self-confidence of nursing and difficulty with relationships in clinical practice. A negative correlation was detected between stress in clinical practice and the professional self-concept of nursing students. Significant predictors of the perceived stress of clinical practice were satisfaction in clinical practice and pride in nursing. These accounted for 18% of the perceived stress of clinical practice in a regression model. Conclusion: The results may serve as basic data in support of the need to the develop effective systematic stress management programs and clinical training courses in order to attenuate the stress experienced during clinical practice of nursing students.

• Proceedings of the Korean Geotechical Society Conference
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• 2003.03a
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• pp.569-576
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• 2003

Based on the equivalent uniform stress concept Presented by Seed and Idriss, sinusoidal cyclic loads which simplified earthquake loads have been applied in evaluating the liquefaction resistance strength experimentally. However, the liquefaction resistance strength of soil based on the equivalent uniform stress concept can not exactly reflect the dynamic characteristics of the irregular earthquake motion. The liquefaction assessment method which was invented by using the equivalent uniform stress concept is suitable for the severe earthquake region such as Japan or USA, so the proper method to Korea is needed. In this study, estimation of the resistance to liquefaction was conducted by applying real earthquake loading to the cyclic triaxial test. From the test results, the characteristics of the fine sand under moderate earthquake were analyzed and compared with the results under strong earthquakes. Typically real earthquake loads used in this study are divided into two types - impact type and vibration type. Furthermore, results of the liquefaction resistance strength based on the equivalent uniform stress concept and tile concept using real earthquake loading were compared.