• 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 Korean Biological Nursing Science
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• v.10 no.2
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• pp.141-146
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• 2008

Purpose: The objective of this study was to study the effect of the obesity control program to the extent of the overweight children's knowledge about obesity, physical exercise, dietary habits and the extent of obesity. Methods: A total of 61 elementary school children between the age of 9-12 were chosen for this study: 31 overweight children whose extent of obesity exceeded over 20% when measured using Broca index and other 30 overweight children of the same category for the comparison as a control group. The obesity control program made up of regular physical exercise for five days per week and a weekly diet education and consultation was implemented for the period of 8 weeks. Results: The knowledge about obesity, regular physical exercise, and diet habits were significantly improved after implementing the obesity control program, as compared to the control group. But the extent of obesity was not significantly decreased. Conclusion: These results suggest that the studies are needed to define factors of effective program and develop the effective program for decreasing the extent of obesity.

• Journal of Korean Society of Occupational and Environmental Hygiene
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• v.31 no.2
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• pp.119-127
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• 2021

Objectives: We aimed to find the relationships between employment status and hs-CRP level among Korean wage workers using the 2016 Korean National Health and Nutrition Examination (KNHANE, revised). Methods: This study was conducted on 1,937 daytime wage workers over the age of 19 and within a normal weight range (18.5≤BMI≺25). Regular workers were defined as those granted an employment guarantee until reaching retirement age, and non-regular workers were defined as temporary, non-typical, dispatched, short-term workers and contractors. For hs-CRP, three divisions were classified as recommended by the Centers for Disease Control and Prevention (CDC) and American Heart Association (AHA) with less than 1.0 mg/L indicating low risk of cardiovascular disease, above 1.0 mg/L and below 3.0 mg/L considered moderate risk, and more than 3.0 mg/L indicating high risk. To find the relationship between work type and hs-CRP level in Korean wage workers, multinominal logistic regression analysis was performed. Results: For non-regular workers, the odds ratio of the cardiovascular moderate-risk group and cardiovascular high-risk group was statistically significant compared to regular workers. After adjusting for factors such as gender, age, subjective health status, income, education, smoking, and physical labor, the odds ratio of the cardiovascular high-risk group was statistically significant. Conclusions: In this study, the relationship between non-regular workers and high hs-CRP level was examined. Based on this, institutional strategies should be pursued to prevent and manage cardiovascular disease among non-regular workers.

• Journal of the Society of Naval Architects of Korea
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• v.33 no.2
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• pp.36-43
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• 1996

An Attitude Control System for a high speed catamaran with contorl fins in waves is designed and investigated by the experimental methods. An optimal control theory is applied to design the automatic attitude control system of the high speed catamaran for its good seaworthiness. The experimental results performed in KRISO model basin for the displacements and accelerations for the model ship are measured in regular hear waves. Form the epxerimental results the effect of control planes is thought to be incroeasing with speed.

• 제어로봇시스템학회:학술대회논문집
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• 1999.10a
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• pp.41-44
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• 1999

Nonlinear sliding surface design in variable structure systems for spacecraft attitude control problems is studied. A robustness analysis is performed for regular form of system, and calculation of actuator bandwidth is presented by reviewing sliding surface dynamics. To achieve non-singular attitude description and minimal parameterization, spacecraft attitude control problems are considered based on modified Rodrigues parameters(MRP). It is shown that the derived controller ensures the sliding motion in pre-determined region irrespective of unmodeled effects and disturbances.

• Asian Pacific Journal of Cancer Prevention
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• v.14 no.12
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• pp.7427-7431
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• 2013

Aims: To examine the pretreatment effects of regular aerobic training on the IGF system (IGF-I, IGFBP-3 and IGF/IGFBP) and doxorubicin(DOX) induced hepatotoxicity in rats. Materials and Methods: Forty-eight male rats were divided into groups:(1) control+placebo (2) $control+DOX_{10}mg{\cdot}kg^{-1}$ (3) $control+DOX_{20}mg{\cdot}kg^{-1}$ (4) training+placebo (5) $training+DOX_{10}mg{\cdot}kg^{-1}$ (6) $training+DOX_{20}mg{\cdot}kg^{-1}$. Hepatotoxicity was induced by DOX with dosages of 10 and 20 $mg{\cdot}kg^{-1}$. The rats in groups 4, 5 and 6 performed treadmill running of 25-54 min/day and 15-20 m/min, 5 days/wk for 6 wks. At the end of the aerobic training protocol, rats in the 1 and 4 groups, in the 2 and 5 groups and in the 3 and 6 groups received saline solution, $DOX_{10}mg{\cdot}kg^{-1}$ and $DOX_{20}mg{\cdot}kg^{-1}$, respectively. Results: Administration of $DOX_{20}mg{\cdot}kg^{-1}$ caused a significant increase in IGF-1 and IGF-1/IGFBP-3, an insignificant decrease in IGFBP-3, as compared to the control+placebo group. However, after six weeks of aerobic training and DOX treatment with $10mg{\cdot}kg^{-1}$ and or/ $20mg{\cdot}kg^{-1}$ an insignificant decrease in IGF-1, an insignificant increase in IGFBP-3 and a significant decrease in IGF-1/IGFBP-3 were detected, in comparison to $C+DOX_{10}$ and $C+DOX_{20}$. Conclusions: Hepatotoxicity of doxorubicin is dose-dependent and pretreatment with regular aerobic training may improve DOX-induced hepatotoxicity by up-regulation of IGFBP3.

• Journal of Korean Academy of Nursing
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• v.27 no.4
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• pp.765-776
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• 1997

Hospitals accomodate patients who have a high risk of infection due to reduced immunity as well as people who require surgical, medical or other treatments. Consequently, the role of clinical nurses, who come into close contact with these patients is very important in the control of nosocomial infection. This study was done to investigate and compare the level of perception of the importance of the control of nosocomial infections as well as the level of actual performance, and the level of satisfaction with the control of nosocomial infection by the clinical nurses. Thus, the purpose of this study is to contribute basic data for improving policies and educational programs to control nosocomial infection. A summary of the survey results is as follows. 1) The means of scores on all categories of the inquiry were 4. 51 for awareness 4.42 for actual performance, and 3.20 for satisfaction, of a possible high score of 5.00. 2) Correlations of the level of perception of importance between characteristics of nurses and hospital control of nosocomial infection differed significantly according to the type of hospital establishment type (p=.005), age(p=.000), career(p=.000), position (p=.002), and regular conferences on infection control in working departments(p=.003), Correlation of the level of actual performance between characteristics of nurses and hospital control of nosocomial infection diffesed significantly according to type of hospital(p=.000), hospital size (p=.009), working department(p=.000), age(p=.000), career (p=.000), school career(p=.040), position (p=.000), education experience on nosocomial infection(p=.020), and regular conferences on infection control in working department(p=.000). Correlation of degree of satisfaction between characteristics of nurses and hospital control of nosocomial infection also differed significantly according to the type of hospital establishment (p=.003), working department(p=.000), age (p=.000), and regular conferences on infection control in working department (p=.000). 3) Correlation between clinical nurses, level of perception of importance and actual level of performance for the control of nosocomial infection was relatively positive (r=.57, p=.000). Correlation between clinical nurses degree of satisfaction and level of actual performance for control of nosocomial infection was relatively positive (r=.47, p=.000). Correlation between clinical nurses, level of perception of importance and degree of satisfaction degree with the control of nosocomial infection was also relatively positive (r=.27, p=.000).

• 한국전산유체공학회:학술대회논문집
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• 2003.10a
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• pp.135-136
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• 2003

• Steel and Composite Structures
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• v.4 no.5
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• pp.403-418
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• 2004

Lateral sway is most likely to control the design of semi-rigid steel frames where the frame arrangements do not include any form of bracing. This paper investigates the sway behaviour of semi-rigid regular steel frames i.e., frames having the same arrangement of beam and column sections at all levels, and hence proposes some design charts for the prediction of sway that eliminate the need for doing any numerical modelling. Schueller's equation has also been modified to incorporate connection flexibility in addition to its original rigid frame considerations. All the proposed methods have been validated using results obtained from numerical analysis.

• Korean Journal of Occupational Health Nursing
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• v.32 no.4
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• pp.215-224
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• 2023

Purpose: This study uses data from the 12th~17th Korea Welfare Panel (2017~2022) to analyze changes in depression scores due to the COVID-19 outbreak and the factors that influenced depression scores according to employment type. Methods: The difference in depression scores according to employment types before COVID-19 (12th~14th) and after COVID-19 (15th~17th) was analyzed. A fixed-effect model analysis was conducted before and after the occurrence of COVID-19. Results: After the outbreak of COVID-19, job satisfaction and family life satisfaction influenced the depression scores of regular wage workers. After the outbreak of COVID-19, annual income, health status, and satisfaction with family life affected the depression scores of non-regular wage workers. After the outbreak of COVID-19, leisure life satisfaction and family relationship satisfaction influenced the depression scores of self-employed. Self-esteem played a role as a control variable in lowering the depression scores of regular and non-regular workers, but did not play a role as a control variable for self-employed. Conclusion: Rather than the direct impact of infectious diseases such as COVID-19, social and economic changes resulting from policies implemented to prevent the spread affect workers' depression, and the impact varies depending on the type of employment. When implementing policies to prevent the spread of infectious diseases in the future, policies that take employment type into consideration rather than uniform policies should be prepared, and measures for mental health also need to be prepared.