• Korean Journal of Childcare and Education
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• v.11 no.2
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• pp.221-238
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• 2015

This study examined the effects of emotional intelligence, teaching efficacy and job stress on happiness among early childhood teachers. Data were collected from 246 early childhood teachers. To collect the data, emotional intelligence, teaching efficacy, job stress, and happiness instruments were used. All research variables were measured using self-reported questionnaires, and were analyzed with one-way ANOVA, t-test, Pearson's correlation and pathway analysis. The results indicated teachers' happiness had no difference by demographic variables. Emotional intelligence had a direct effect and an indirect effect through teaching efficacy and job stress on happiness among early childhood teachers. Teaching efficacy and job stress had a direct effect on happiness among early childhood teachers. Additionally, emotional intelligence was the most important variable predicting early childhood teachers' happiness. Teaching efficacy and job stress had a mediating effect between emotional intelligence and happiness.

• The Korean Journal of Health Service Management
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• v.10 no.2
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• pp.205-216
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• 2016

Objectives : The purpose of this study was to determine the association between musculoskeletal workload and job stress in early childcare teachers. Methods : This study was based on The Korean Working Condition Survey conducted on wage workers. The total number of individuals included in the analysis was 395 (286 childcare teachers and 109 kindergarten teachers) early childcare teachers in 2011. The collected data were analyzed by frequency statistic, cross-tabulation analysis and logistic regression. Results : The adjusted odds ratio showed a statistically effective association for job stress exposure. The results were as follows: education level, service environment, emotional labor, fatigue or posture led to pain for a high level of job stress. Additionally, for childcare teachers, the results showed that fatigue or posture led to pain when moving a heavy object frequently. Conclusions : When childcare teachers are assigned a task to lift heavy or awkward or objects, care should be taken on who is assigned the task, and it should be done safely. An intervention program should be developed to train childcare teachers to safely and efficiency do heavy labor in early childcare education classes.

• Korean Journal of Child Studies
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• v.33 no.1
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• pp.63-80
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• 2012

The purpose of this study was to analyze the effects of stress perception and social support on subjective well-being according to differing levels of optimism. The participants in this study were 230 pre-service early childhood teachers, majoring in early childhood education at two universities located in Daegu, Gyeongbuk province. The results of this study could be summarized as follows. First, pre-service early childhood teachers were shown to be more optimistic, be more satisfied with life, and had higher positive emotion rates than average. They also showed lower stress perception and negative emotion rates than average. Second, the highly optimistic group showed higher levels than the less optimistic group in terms of both satisfaction with life and positive emotions. Third, the stress perception in both the highly optimistic group and the less optimistic group had an impact on their satisfaction with life, positive emotions, and negative emotions. The degree of peer support perceived by the highly optimistic group showed an impact on satisfaction with life and negative emotions, whereas the degree of parental support perceived by the less optimistic group showed an impact on their levels of satisfaction with life.

• Journal of Korean Neurosurgical Society
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• v.38 no.1
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• pp.77-79
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• 2005

We report a case of early stress fracture of the pelvic ring following an extension of a multilevel instrumented lumbosacral fusion in an osteopenic female. Surgeons should be aware of possibilities of pelvic complications in osteopenic patients with lumbosacral arthrodesis and should take care when harvesting iliac bone graft.

• Proceedings of the Korea Concrete Institute Conference
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• 2001.11a
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• pp.641-646
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• 2001

In early-age concrete, volumetric deformations due to thermal expansion and moisture transfer are restrained by various boundary conditions, and then restraint stresses occur in proportion to developed stiffness. With increase of the age, these stresses are gradually relieved by significant relaxation behavior of early-age concrete. Therefore, it is necessary to consider the stress relaxation in order to analyze the behavior of early-age concrete more accurately. In this paper, we propose a unified algorithm which combines a relaxation model with hydration model, heat conduction model, micropore structure formation model, moisture diffusion model and mechanical properties development model and develop a finite element program based on the algorithm. The program is applied to evaluate stress development if a temperature-stress test machine (TSTM) specimen and a massive concrete structure, and then validity of the program is discussed and evaluated.

• Korean Journal of Childcare and Education
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• v.11 no.1
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• pp.191-208
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• 2015

The purpose of this study was to identify the relationship among beginning early childhood teachers' stress coping strategies, role performance, and self leadership. The subjects in this study were 491 beginning early childhood teachers working in kindergarten and child care centers across the country. Stress coping strategies questionnaire(Chang-Soon Park, 2005) and role performance questionnaire(Bog-Mae Park, 2011), and self-leadership questionnaire(Dong-Hyen Park,2014) were used for this study. For the research analysis, frequency, Cronbach's ${\alpha}$ coefficient, and Pearson's correlation were calculated and regression analysis were conducted. The results are as follows. Firstly, it was revealed that passive stress coping strategies does not have statistically meaningful influences on role performance, but active stress coping strategies have statistically meaningful positive influences on role performance. Also, 491 beginning early childhood teachers' active stress coping strategies have statistically meaningful positive influences on role performance through the mediation of self leadership. That is, the results explain that the higher the self-leadership of beginning early childhood teachers is, the higher the role performance that they have experienced is. It shows that beginning early childhood teachers'self leadership mediates partially between active stress coping strategies and role performance. Through this study, it is possible to provide basic information to configure the subject content that enhance their self-leadership and develop active stress coping attitudes in a curriculum for beginning early childhood teachers.

• Korean Journal of Child Studies
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• v.22 no.4
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• pp.167-188
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• 2001

This study investigated the relationship of daily life activity experiences to violent behaviors and their moderating effects on the relationship between stress and violent behaviors in early adolescence. A sample of 134 second year middle school students carried electronic watches for one week and provided reports on their objective activity situation and subjective states when signalled at random times. Stress was positively correlated with violent behaviors. Daily activity experiences were correlated with violent behaviors and moderated the relationship between stress and violent behaviors. More time spent in socializing and passive leisure, and negative emotional states during schoolwork and active leisure were correlated with higher violent behaviors. Lower motivational states during schoolwork were correlated with higher violent behaviors. Lower cognition of importance and attention states during schoolwork and higher cognition of importance and attention states during active leisure and maintenance activities were correlated with higher violent behaviors. Finally, the moderating effects of negative emotion during active leisure, motivation and attention states during schoolwork on the relationship of stress with violent behaviors were found among girls only.

• Journal of the Korean Home Economics Association
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• v.40 no.1
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• pp.69-84
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• 2002

This study investigated characteristics of daily life activity experiences and their relations to stress in early adolescence. A sample of 134 8th graders carried electronic watches programmed to signal 7 times a day for a week at random times and reported their daily life activity experiences when signaled. Boys spent 33% of their waking hours in schoolwork, 46% in leisure, and 21% in maintenance activities. Girls spent 32% in schoolwork, 43% in leisure, and the other 25% in maintenance. Both boys and girls experienced more positive affect, cognitive, and motivation during leisure, whereas more negative psychological states during schoolwork. The major stress was schoolwork-related. The stress was significantly related to objective and subjective experiences of daily life activity.

• Journal of Korean Public Health Nursing
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• v.7 no.2
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• pp.89-97
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• 1993

The purpose of this study was to analyze early adolescent-family stress and family coping according to differences in general charactiristics. This study is also intended to analyze relationship between early adolescent family stress and coping. The subjects of this study consisted of (292) middle school students of the city of sokcho. The data were collected between Aug. 23, 1993 to Aug. 28, 1993. At tools of measurement, McCubbin & Patterson's 'A-FILE (Adolescent-Family Inventory of Life Events & changes)' and 'A-COPE (Adolescent Coping Orientation for Problem Experiences)' were amended and made use. For the statistical analysis of data, t-test, ANOVA, Pearson Correalation Coefficient were utilized The results were summarized as follows: 1) General characteristics influencing the level of adolescent-family stress were parents status. (p=.000) 2) General characteristics influencing coping were parent's religions. (father: p=. 003) (mother: p=.039) 3) There was a significant difference between the level of adolescent-family stress & coping. (p=.000)

• Steel and Composite Structures
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• v.45 no.2
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• pp.263-279
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• 2022

With the span and arch rib size of concrete-filled steel tube (CFST) arch bridges increase, the hydration heat of pumped mass concrete inside large-size steel tube causes a significant temperature variation, leading to a risk of thermal stress-induced cracking during construction. In order to tackle this phenomenon, a hydration heat conduction model based on hydration degree was established through a nonlinear temperature analysis incorporating an exothermic hydration process to obtain the temperature field of large-size CFST. Subsequently, based on the evolution of elastic modulus based on hydration degree and early-age creep rectification, the finite element model (FEM) model and analytical study were respectively adopted to investigate the variation of the thermal stress of CFST during hydration heat release, and reasonable agreement between the results of two methods is found. Finally, a comparative study of the thermal stress with and without considering early-age creep was conducted.