• Proceedings of the Korean Society of Crop Science Conference
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• 한국작물학회 2005년도 춘계학술발표회 요지
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• pp.296-297
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• 2005

• Journal of Families and Better Life
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• 제11권1호
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• pp.218-234
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• 1993

A study focused on the wives'managerial behavior and their life satisfaction according to wives'stress level ad their coping behavior. The statistical procedures used were percentile mean cronbach's a T-test F-test cluster analysis. Duncan's Multiple Range test. For the purpose the sample were conducted using questionnairs on 548 housewives that lived in seoul. The major findings wee ; 1) The wives's education level of background variables significantly was differentiated from wives' managerial behavior and their life satisfaction respectively. 2) The wives'stress level and their coping behavior respectively was higher than average. from wives'managerial behavior respectively. 4) The variable i.e. wives'stress level wives'coping behavior significantly was differentiate from wives'life satisfaction respectively In conclusion to improve wives'managerial behavior and their life satisfaction this study suggests we have to try to release or decrease wives'stress level and to do the resonable wives'co-ping behavior.

• Journal of the Korean Home Economics Association
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• 제38권6호
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• pp.117-133
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• 2000

The purpose of this study was to examine the effect of perceived economic stress & marital conflict on the quality of life under economic crisis in Korea. Data were collected from 236 couples during May and June 1998, when the Korean economy was under the control of International Monetary Fund (IMF). Many couples reported the unstability of job and the experience of economic strain events. However, the perceived level of marital conflict and the quality of life were not so bad. Husbands perceived economic stress and quality of life higher than wives did. The path analysis showed gender difference in the perceived economic stress as well as in the indirect effect of economic strain events on the quality of life through economic stress and marital conflict. In addition, family income directly affected the quality of life for husbands, but not for wives.

• Proceedings of the Korean Society of Crop Science Conference
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• 한국작물학회 2017년도 9th Asian Crop Science Association conference
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• pp.175-175
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• 2017

To understand molecular mechanisms underlying adaptation of plant cells to saline stress and stress memory, we developed Arabidopsis callus suspension-cultured cells adapted to high salt. Adapted cells to high salt exhibited enhanced tolerance compared to control cells. Moreover, the salt tolerance of adapted cells was stably maintained even after the stress is relieved, indicating that the acquired salt tolerance of adapted cells was memorized. In order to characterize metabolic responses of plant cells during adaptation to high salt stress as well as stress memory, we compared metabolic profiles of salt-adapted and stress-memorized cells with control cells by using NMR spectroscopy. A principle component analysis showed clear metabolic discrimination among control, salt-adapted and stress-memorized cells. Compared with control cells, metabolites related to shikimate metabolism such as tyrosine, and flavonol glycosides, which are related to protective mechanism of plant against stresses were largely up-regulated in adapted cell lines. Moreover, coniferin, a precursor of lignin, was more abundant in salt-adapted cells than control cells. Cell morphology analysis using transmission electron microscopy indicated that cell wall thickness of salt-adapted cells was significantly induced compared to control cells. Consistently, salt adapted cells contained more lignin in their cell walls compared to control cells. The results provide new insight into mechanisms of plant adaptation to saline stress as well as stress memory in metabolic level.

• Journal of Hospice and Palliative Care
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• 제24권4호
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• pp.235-244
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• 2021

Purpose: This study aimed to provide basic data for developing interventions to relieve the end-of-life care stress experienced by pediatric nurses by examining the relationships of end-of-life care stress with compassionate competence and attitudes toward end-of-life care. Methods: Data were collected via a survey that was conducted from September 10 to September 30, 2018 and administered to 113 nurses who had worked for more than 6 months in a pediatric unit at a tertiary hospital in Seoul, South Korea. The data were analyzed for frequency, percentage, mean, and standard deviation, and the independent t-test, one-way analysis of variance, and Pearson correlation analysis were conducted using SPSS version 25.0. Results: End-of-life care stress among pediatric nurses had a weak positive correlation (r=0.216, P<0.05) with compassionate competence and had no significant correlation with attitudes toward end-of-life care. Among the sub-factors of end-of-life care stress, psychological difficulties had a weak positive correlation with sensitivity (r=0.309, P<0.01) and communication (r=0.230, P<0.05), which are aspects of compassionate competence. Lack of knowledge about end-of-life care had a weak positive correlation with communication (r=0.209, P<0.05) as an aspect of compassionate competence. Conclusion: To improve the quality of end-of-life care provided by pediatric nurses, it is necessary to improve their compassionate competence and reduce their end-of-life care stress by developing education and support programs tailored to the characteristics of children and specific communication methods.

• Women's Health Nursing
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• 제16권1호
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• pp.10-19
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• 2010

Purpose: The purpose of this study was to investigate the relationship among family support, stress and quality of life according to the phases of illness in breast cancer patients. Methods: A descriptive correlational study was employed with 121 breast cancer patients. The data was collected by using self reported questionnaire. Self reported data was collected by using the Family support scale, Perceived Stress Scale (PSS), and EORTC QLQ-BR23. Phases of illness consisted 1st phase, 2nd phase, 3rd phase. Results: The score of family supporting, stress and quality of life showed a statically differences according to the phase of illness. Family supporting and stress had negative relation in the first, second and third phase. Family supporting and quality of life in function area had positive relation in the first, second phase. There was no relation between family supporting and quality of life in symptom area. Stress, quality of life in symptom area and quality of life in function area had correlation in the first, third phase. Conclusion: This study suggest that the new nursing implementation should be considered according to the phase of illness in order to improve the family supporting and quality of life and reduce the stress in breast cancer patients through this study results.

• Journal of the Korea Convergence Society
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• 제8권6호
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• pp.325-336
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• 2017

In this study to identify a causal relationship between daily stress, ego-resilience and the quality of life of the elderly in long-term care facility, a causal relationship model was set up and path analysis was performed. The data collected from 380 elderly users in private long-term care facilities in Greater Seoul Metropolitan area were analyzed using SPSS 22.0 and AMOS 22.0 to analyze the correlation between daily stress, ego-resilience, and the quality of life of the elderly. The results of this study are as follows; First, daily stress of the elderly showed a negative (-) direct effect on the quality of life. Second, the ego-resilience of the elderly had a positive (+) direct effect on the quality of life. Third, daily stress of the elderly showed a positive (+) direct effect on ego-resilience. Fourth, daily stress of the elderly showed indirect effect and partial mediating effect on the quality of life through ego-resilience. Therefore, in order to improve the quality of life of the elderly, it is necessary to develop programs and institutional support to reduce daily stress and increase ego-resilience.

• Transactions of the Korean Society of Mechanical Engineers
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• 제12권4호
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• pp.790-805
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• 1988

Static strength and fatigue life scattering of glass fiber reinforced epoxy composite materials has been studied. Normal, lognormal, two-parameter and three-parameter Weibull distribution functions are used for strength and one-stress fatigue life distribution. The value of mean fatigue life is analysed using mean fatigue life, mean log fatigue life and expected value of 2 and 3-parameter Weibull distribution functions. Modification on non-statistical cumulative damage models is made in order to interpret the result of two-stress level fatigue life scattering. The comparison results show that 3-parameter Weibull distribution has better predictions in static strength and one-stress level fatigue life distributions. However, no advantage of 3-parameter Weibll distribution is found over 2-parameter Weibull distribution in two-stress level fatigue life predictions. It is found that two-stress level fatigue life prediction by the expanded equal rank assumption is close to the experimental data.

• International Journal of Reliability and Applications
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• 제17권1호
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• pp.85-105
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• 2016

In this paper accelerated life testing is incorporated in quality control technique of acceptance sampling plan to induce early failures in high reliability products.Stress under accelerated condition can be applied in constant-stress, step-stress and progressive-stress or combination of such loadings. A ramp-stress results when stress is increased linearly (from zero) with time. In this paper optimum failure-censored ramp-stress accelerated life test sampling plan for log-logistic distribution has been formulated with cost considerations. The log-logistic distribution has been found appropriate for insulating materials. The optimal plans consist in finding optimum sample size, sample proportion allocated to each stress, and stress rate factor such that producer's and consumer's interests are safeguarded. Variance optimality criterion is used when expected cost per lot is not taken into consideration, and bilevel programming approach is used in cost optimization problems. The methods developed have been illustrated using some numerical examples, and sensitivity analyses carried out in the context of ramp-stress ALTSP based on variable SSP for proportion nonconforming.

• Journal of Korean Biological Nursing Science
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• 제18권1호
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• pp.60-67
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• 2016

Purpose: The purpose of this study was to investigate the disease-related knowledge, stress and quality of life for the patients with varicose veins. Methods: Data were collected via questionnaire from 138 patients with varicose veins in C University Hospital in Korea from November in Korea 2012 to August 2013. Results: Knowledge of the symptoms and diagnosis was the lowest. The scores from patients with disease-related knowledge tended to be low for both subjects over the age of 60 and subjects with low education (less than high school). The score for stress over complications was the highest. The level of stress is higher for women, subjects without spouses, subjects with higher severity of disease and patients who had been taking hormones in the past or are still taking hormones. The disease-related quality of life tended to be lower for women and subjects without spouses. 21% of the variance in quality of life was explained by the level of disease-related stress, disease severity and knowledge. Conclusion: Education and the management of nurses to improve disease-related knowledge for patients with varicose veins is highly recommended. Intervention, by reducing stress, is necessary to improve the quality of life for women, subjects without spouses, and subjects with higher severity of the disease.