• Journal of the Society of Cosmetic Scientists of Korea
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• v.43 no.4
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• pp.281-287
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• 2017

Stress in skin plays a significant role in both the direct/indirect regulation of cellular processes occurring in hair, which in turn affect the hair cycle. However, experimental data regarding the effects of stress-related corticotropin releasing factor (CRF) released by stress on the apoptotic process involved in hair is limited. Therefore, we investigated the acceleration of early-stage apoptosis induced by atopy-related stress using a 2,4-dinitrochlorobenzene NC/Nga mice model. Expression of CRF, its related proteins, annexin V, and mitochondrial dysfunction were measured by immunohistochemical analyses. Atopic stress strongly stimulated stress hormones response, such as CRF and adrenocorticotropic hormone, in outer epithelial sheath of the hair. Moreover, its stress induced mitochondrial damage and early-stage apoptosis of cells in hair root. These findings suggest that hair damage due to apoptosis in atopy model is accelerated in a high CRF environment. Importantly, the effect of stress-related CRF on apoptosis processes involved in atopy dermatitis-related hair loss, suggests that the CRF-regulating development or maintenance materials may provide effective therapeutic strategies for hair health.

• Journal of Industrial Technology
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• v.25 no.B
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• pp.73-80
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• 2005

Durability of concrete structures is seriously compromised by cracking at early-age concretes, particularly in high-strength or high-performance concrete structures. Since early-age cracking is influenced by various factors that affect the hydration process, early-age shrinkage and stress/strain development, the behavior at early-age is highly complex and no rational methodologies for its control have yet been established. Concrete structures often present volumetrical changes particularly due to thermal and moisture related shrinkages. Volumetric instability is detrimental to the performance and durability of concrete structures because structural elements are usually restrained. These restrained shrinkages develope tensile stresses which often results in cracking in combination with the low fracture resistance of concrete. Early-age defects in high-performance concrete due to thermal and autogenous deformation shorten the life cycle of concrete structures. Thus, it is necessary to examine the behavior of early-age concrete at the stages of design and construction. The purpose of this study was to propose a shrinkage models of VES-LMC (very-early strength latex-modified concrete) at early-age considering thermal deformation and autogenous shrinkage.

• Korean Journal of Culture and Social Issue
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• v.28 no.3
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• pp.483-512
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• 2022

This study examined the patterns of coping strategies among Koreans during the early stage of the COVID-19 pandemic, explored the influence of demographic information (gender, age, economic level, household type), along with the unusual experiences due to COVID-19 (fear, stress of COVID, constraints of routine, income risk) on the classification of subclasses, and analyzed the latent profile differences in psychological wellbeing (life satisfaction, depression, and anxiety). An online survey was conducted among Korean Adults(n=600) between April 13, 2020 and 21, when WHO declared COVID-19 a global pandemic and Daegu as well as Gyeongsangbuk-do was nominated as a special disaster zone. First, Latent Profile Analysis (LPA) was used to identify subclasses of coping strategies and results suggested that the 4-class model had the best fit. Second, Class memberships were predicted by gender, age, economic level, as well as fear, stress, constraints of routine, and income risk, among the unusual experiences due to COVID-19. Finally, there are differences in psychological wellbeing among latent profiles. 'High level of adaptive coping group 3' showed the highest level of life satisfaction, 'Adaptive-maladaptive coping group 4' showed the highest level of depression, anxiety. Implications and suggestions are discussed based on the study results.

• Proceedings of the Korea Concrete Institute Conference
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• 2006.05a
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• pp.474-477
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• 2006

To predict thermal stress independent of uncertain material properties of early age concrete, such as elastic modulus and creep, thermal stress device is used. In order to verify the application of various degree of constraint in the thermal stress device, a series of experiments were performed on mass concrete followed by numerical simulation. The application of various degrees of constraint can be achieved by using constraint frame material with different thermal expansion coefficient, length, and cross sectional area. Temperature development in the real structure has been simulated using temperature and humidity control chamber. The results from experiments and numerical analysis show that the thermal stresses estimated from simulation agree well with the general stress variations in the real structure even though the properties of concrete are uncertain.

• Journal of the Korean Home Economics Association
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• v.49 no.6
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• pp.109-122
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• 2011

The major purpose of this research was to explore the mediating effects of ego-resiliency between parent communication style and stress coping styles in adolescence. The subjects who participated in this study included 247 high school students from Gyeong-gi province. They completed questionnaires on parent-adolescent communication, ego-resilience, and stress coping styles using the cognitive appraisal model by Lazarus & Folkman(1984). Data were analyzed by t-test, Pearson's correlation coefficients, and multiple regression. It was found that parent-adolescence communication as well as ego-resilience had significant effects on stress coping styles. In particular, female teenagers showed evidence that ego-resilience had complete mediation over relationships between a parent's communication styles and their stress coping styles.

• Korean Journal of Child Studies
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• v.28 no.4
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• pp.127-144
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• 2007

Mothers of 101 5- to 6-year-old children were administered the Parenting Efficacy Test (Shin & Jung, 1998; Ann & Park 2002) and the Parenting Stress Index (Lee, Yeom, & Shin, 2000). Children's emotional intelligence (EI) was measured by the Emotional Intelligence Test for Children (Lee & Lee, 2004b). Data were analyzed by correlation and multivariate analysis of variance (MANOVA). Correlation analysis demonstrated a relationship of parenting efficacy and stress with child's EI. MANOVA revealed that children, whose maternal parenting efficacy was in the upper thirty percent, showed higher EI than parenting efficacy in the lower thirty percent : children whose maternal parenting stress was in the upper thirty percent, showed lower EI than those with stress in the lower thirty percent.

• Perspectives in Nursing Science
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• v.2 no.1
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• pp.48-60
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• 2005

The relationship of psychological stress to human health is of interest to health care providers and researchers in the field of psychoneuroimmunology. The effect of stress on wound healing is a sub-component of study within the larger context, with relevance to both wounds that are acute and chronic in nature. Data from several studies that explore the influence of stress on events early in the trajectory of wound healing suggest that activation of both the sympathetic nervous system and the hypothalamic-pituitary-adrenal axis are involved. There is consistent evidence that psychological stress is associated with dysregulation of immune and other responses to tissue injury that are required for healing and also to the final wound healing result. Current data pertinent to psychological stress and its wound healing consequences is reviewed and a biopsychosocial framework for future studies in this area is suggested and described.

• The Korean Journal of Community Living Science
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• v.28 no.2
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• pp.229-239
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• 2017

The study investigated the interrelations between infant temperament, mothers' affective parenting, and maternal parenting stress. The study also studied the moderating effects of mothers' affective parenting between infant temperament and maternal parenting stress. Data on 1,863 mothers with children aged under 12 months from the 2008 Panel Study on Korean Children were analyzed using PASW ver. 23.0 to carry out descriptive statistics, correlation co-efficiencies, and hierarchical multiple regression. The results show that infant temperament and mothers' affective parenting were significantly correlated with maternal parenting stress. The findings also prove the moderating effects of mothers' affective parenting on the relationship between infant emotionality, negative temperament, and maternal parenting stress.

• Journal of the Ergonomics Society of Korea
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• v.17 no.2
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• pp.33-48
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• 1998

This paper illustrates the application of Fuzzy Theory and Analytic Hierarchy Process(AHP) for developing Occupational Stress Index(OSI). The purpose of the OSI development is for future prediction and problem solving of prevailing occupational stress. In developing OSI, the concept of fuzzy set theory was introduced to determine the existence and level of perceived occupational stress instead of actually measuring the strain parameters. The AHP is adopted to collect different weighting factors, since there exist various perceptions and responses to the occupational stress by different individuals. The validation study revealed that the OSI is a reliable predictor of work-related accident and illness and the physiological health of employees. Creating preventive measures, such as early detection of stress, proper placement and promotion of employees, and job enlargement will be possible by using this OSI effectively.

• Journal of the Korean Home Economics Association
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• v.41 no.3
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• pp.31-44
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• 2003

The purpose of this study is to investigate the difference of maternal parenting stress through early childhood between urban(Seoul and Incheon) and rural area(Iksan and Kimpo). The subjects were 286 unemployed mothers who have less than 5-year-old children. The statistics used for this data were frequency, percentile, t-test, ANOVA, and multiple regression. The finding from the present study certainly suggested that mother's level of self-differentiation, marital satisfaction, father's parenting support turned out to a significant variables on maternal parenting stress. Results of the regression analysis that the etiologic model of this study was more proper to urban than rural area, and father's parenting support is the most effective variable in predicting maternal parenting stress in both area. Implications based on this study are as follows ; parenting education programs to encourage for father's parenting support with be developed, and various empirical studies about maternal parenting stress in with area will be needed.