• The Journal of the Convergence on Culture Technology
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• v.2 no.1
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• pp.35-43
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• 2016

The purpose of this study was to analyze the relationship between general characteristics, clinical practice stress, major satisfaction and employment stress, and check the effect on employment stress in order to provide baseline data of reduced amount of stress from nursing undergraduates. Methods: The cross-sectional descriptive study design was used. We selected 388 nursing undergraduate students from nursing college located in Daejeon, Jinju, Naju city by convenience random sampling and analyzed the data using SPSS 22.0 program. Results and Conclusion: Factors that effects on employment stress was clinical practice stress, major satisfaction and family economic status, and the explanatory power was 23.8%. The results show the need for development of pre-clinical practice adaptation education program and applying it for nursing students to reduce the clinical practice stress. Also, development of counseling program is needed, since nursing has higher employment rate compare to other major however it is difficult to get a job at wanted hospital, moreover there are students who are pressured from license examination.

• The Journal of the Korea Contents Association
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• v.9 no.11
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• pp.297-308
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• 2009

The purpose of this study is to explore the relationship between job stress and mental health of caretakers by SCL-90-R. This study are to offer basic information for patients the quality of service interventions. The sample for the study consisted of 247 caretakers who work in Busan. The results of this study are as follows: 1) Caretakers' mental health and job stress was not serious level. 2) There was an important factor in job stress, which was suitable pay. 3) Caretakers' job stress was positively related to mental health. There is a statistical correlation between the relationship with mental health and job stress. 4) Caretakers' mental health was affected by job stress level. Therefore, We need training and program that focuses on management job stress in caretakers.

• Korean Journal of Occupational Health Nursing
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• v.8 no.2
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• pp.115-129
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• 1999

This study was conducted to investigate the kinds of health promotion program which workers want, worker's intention for participation, proper method, time, duration and manager. A self-administered questionnaire method was used to collect data from 412 employees of 3 worksites in Chungpook and Kyungkee. This survey was carried out from Aug. 10 to Aug. 20, 1998. The results of this study are as follows: 1. In male, among health promotion programs, favorite ones were physical fitness(32.2%), periodic health check-up(24.6%), and stress management(18.0%). In female, among health promotion programs, favorite ones were periodic health check-up(26.0%), physical fitness(22.0%), and body weight control(19.5%). 2. The more young subjects are, the more they like physical fitness program, and the female like body weight control program regardless of BMI. Manufacturing worker preferred back pain prevention program to clerical worker did. In female, drinker preferred stress management program to non-drinker did. 3. The more old subjects are, the more they like back pain prevention program, and non-smoker preferred body weight control program to smoker did. 4. In health promotion program format which the subjects wanted, learning of self-examination techniques was 41.1%, worksite screening was 3l.0%, availability of pamphlets and audiovisual materials was 20.0%, presentation of worksite educational sessions was 7.9%, and the most wanted manager for the program was medical doctor and then nurse, physical trainer, psychological counselor. The favorite health promotion program duration was less than 30 minutes(49.6%), and the favorite time was before work(49.6%). 5. Among respondents, 48.5% was smokers, 81.8% was drinkers, 39.9% engaged in the regular exercise, 68.2% engaged in regular diet habit. In vaccination, 50.2%, if possible, wanted to be vaccinated and 37.6% never wanted to be vaccinated. 6. Ex-smoker, ex-drinker, the subjects in the regular exercise, and in the regular diet habit responded they were in good health. There was a significant difference between exercise and health status. Need and intention for participation of health promotion program were high in ex-smoker, ex-drinker, the subjects in the regular exercise, and in the regular diet habit. According to results for this study, if the favorite programs, exercise, periodic health check-up, stress management program, are operated at a proper time and with managers they want, this programs can really raise the participation of employees. And as employees want to learn self-examination techniques if worksite educational sessions are performed, health promotion program can effectively be operated.

• Journal of the Korea Safety Management & Science
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• v.19 no.1
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• pp.15-25
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• 2017

The findings were summarized as follows. The safety check by manufacturer showed that 6 of 13 companies are over the average occurrence of defects. It was expected that there would be a difference between manufacturing technology capability and production system of each manufacturer. Consequently, manufacturers should institutionally improve and strengthen certification items for the upward standardization of safety certification before factory. Second, the safety check by year showed that the results of this study accord with those of previous studies on defect time. Consequently, manufacturers should classify the 3-year-old equipment for vehicle-mounted MEWP into a special check subject to do a nondestructive test according to proven results, and also reflect the test in a safety test system to do regular preventive activities of equipment defects. Third, the safety check by part showed that the boom and outrigger parts of vehicle-mounted MEWP have the most defects. Stress concentration resulted in defects as the boom part was most frequently operated in the structural parts for a real work. To prevent this, it is suitable to improve the hardness of boom materials. The outrigger part needs improvement in safety devices with materials. As an outrigger supports the overturning moment of equipment, it is most affected by its load based on the operating radius, resulting in fatigue crack.

• Anxiety and mood
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• v.11 no.1
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• pp.26-32
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• 2015

Objective : The objective of this study was to examine the mental health status and its correlates of the marriage-migrant women in Seoul, Korea. Methods : One hundred and seventy marriage-migrant women and one hundred and sixteen married Korean women were recruited from community to complete Symptom Check List-90-Revision (SCL-90-R). Marriage-migrant women were also asked for their socio-demographic factors, acculturative stress, family-relationship stress, and social support. The scores on the SCL-90-R were compared between marriage-migrant women and married Korean women, and the correlates of marriage-migrant women's mental health were investigated. Results : Compared to married Korean women, marriage-migrant women showed lower levels of mental health problems including somatization, obsession-compulsion, interpersonal sensitivity, depression, anxiety, hostility, paranoid ideation, and psychoticism. Longer length of residence in Korea, lower family income, social support, higher acculturation stress, and family relationship stress were all associated with mental health problems of marriage-migrant women Results : Our results suggest that mental health of marriage-migrant women is not necessarily bad, and several factors may affect their mental health. However, further studies are required in a larger representative sample to confirm the study findings.

• International Journal of Advanced Culture Technology
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• v.7 no.4
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• pp.118-124
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• 2019

There is a strong connection between the diet rich in antioxidants and the decreased incidence of cardiovascular and cancerous diseases. Diets that are rich in anti-oxidants particularly include fruits and vegetables containing the high amounts of vitamin A-E, carotenoids, and minerals. Different processing conditions applied for vegetables and plants results in the alteration of the nutrients present in them. Therefore the rationale of our study was to compare the antioxidant effects of different processed vegetables and plants and to see that which one of them showed best anti-oxidant activity. For this purpose, we have used acetaminophen induced oxidative stress model in mice to check the effects of processed apple, pear, carrot, cabbage, broccoli and radish. Our results have shown that the administration of these samples effectively decreased the expression of parameters related with oxidative stress like ALT, AST, catalase, superoxide dismutase, GPx and 8-OHdG. Moreover they also significantly protected the mice livers from APAP induced damage as shown by histological changes. Therefore our results have demonstrated the effects of processed fruits and vegetables in mice model of oxidative stress.

• Progress in Superconductivity and Cryogenics
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• v.20 no.4
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• pp.36-40
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• 2018

In this study, the electromechanical properties in Sn-Cu double layer stabilized GdBCO coated conductor (CC) tapes with and without external lamination under uniaxial tension were examined at 77 K and self-field. Their irreversible stress and strain limits were determined using a loading-unloading scheme based on different critical current ($I_c$) recovery criteria. The repeated tests were performed and statistical estimation was done to check the reproducibility depending on the criterion adopted in evaluating the electromechanical properties. From the results, it showed that the Sn-Cu double-layer stabilized CC tapes have the higher irreversible stress limit, but lower irreversible strain limit as compared to brass laminated ones. Through the repeated tests, it can be found that a small scattering of irreversible limits existed in both CC tape samples. Finally, similar strain sensitivity of $I_c$ in both CC tapes was obtained.

• Journal of The Korean Society of Agricultural Engineers
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• v.66 no.1
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• pp.15-24
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• 2024

Unlike artificially created homogeneous materials, the process of calculating the elastic modulus of natural soil involves the possibility of errors. Because the stress-strain behavior of soil is nonlinear, the secant modulus of elasticity is often used based on 1/2 of the stress at failure. Since soil has the property of changing its elastic modulus depending on the confining pressure, numerical analysis models that analyze its behavior inevitably include complex elements. The hyperbolic model, which relatively accurately simulates the behavior immediately after loading in soft ground, assumes that the stress-strain curve of the consolidated undrained triaxial test is hyperbolic and requires the slope of the tangent line at the starting point. However, the slope of the initial tangent in the stress-strain curve obtained from an actual triaxial test is difficult to have regularity according to changes in confining pressure. Additionally, due to the characteristics of a hyperbola, even small changes in related factors cause large changes in the hyperbola. Therefore, there is a lot of randomness in the process of calculating model parameters from the triaxial test results, which causes large differences in the results. Therefore, the method of calculating the initial elastic modulus by the consolidation test presented in this study is also used to verify the method by the triaxial test. It can be applied. However, since this study was applied to only one sample showing typical consolidation characteristics, it is necessary to check samples with various physical properties in the future.

• The Journal of the Korea Contents Association
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• v.12 no.9
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• pp.211-216
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• 2012

In this study, the relationship between the organizational characteristics of police officers and the level of post-traumatic stress disorder in the comparative analysis was to check for post-traumatic stress disorder, according to the organizational characteristics affect. To accomplish this, a way ANOVA analysis of variance(One-way ANOVA) was conducted. The department in post-traumatic stress disorder level, a significant difference was found. It was more likely to be exposed to a traumatic experience if who is working in the front-line department. Post-traumatic stress disorder according to the work unit, a significant difference was found. The level of Post-traumatic stress disorder in outside job unit officers was higher than that of desk job unit offcers. Post-traumatic stress disorder according to the rank and duration of employment and the administrative district level, a significant difference was not found.

• Journal of Ocean Engineering and Technology
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• v.29 no.6
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• pp.454-462
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• 2015

An extended study was conducted on the fracture criterion by Choung et al. (2011; 2012) and Choung and Nam (2013), and the results are presented in two parts. The theoretical background of the fracture and the results of new experimental studies were reported in Part I, and three-dimensional fracture surface formulations and verifications are reported in Part II. How the corrected true stress can be processed from the extrapolated true stress is first introduced. Numerical simulations using the corrected true stress were conducted for pure shear, shear-tension, and pure compression tests. The numerical results perfectly coincided with test results, except for the pure shear simulations, where volume locking appeared to prevent a load reduction. The average stress triaxialities, average normalized lode parameters, and equivalent plastic strain at fracture initiation were extracted from numerical simulations to formulate a new three-dimensional fracture strain surface. A series of extra tests with asymmetric notch specimens was performed to check the validity of the newly developed fracture strain surface. Then, a new user-subroutine was developed to calculate and transfer the two fracture parameters to commercial finite element code. Simulation results based on the user-subroutine were in good agreement with the test results.