• Asian-Australasian Journal of Animal Sciences
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• 제6권3호
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• pp.423-426
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• 1993

A total 930 outbreaks of Foot and Mouth Disease (FMD) were recorded in Bangladesh from 1988 to 1991. Number of FMD outbreaks was recorded highest in Rajshahi division (304) followed by Dhaka (272), Khulna (203) and Chittagong (151). During 1988 to 1991, FMD outbreaks reached in peak level in 1990 (540) followed by 1989 (209), 1988 (95) and 1991 (86). Outbreaks though occurred throughout the year were higher in premonsoon and winter seasons. Morbidity rate was found significantly higher (p<0.01) in cattle (35.5%) than buffaloes (23.3%) and sheep/goats (4.8%). Of the cattle, bull/bullock infected more (p<0.01) than cows and calves. Morbidity rate in different animals was observed significantly higher (p<0.01) in Rajshahi and Dhaka divisions than in Khulna and Chittagong. Mortality specially in calves was found at the rate of 50.9%. Loss in milk yield was found to be 66.6%. Disease period for a FMD affected cattle varied from 16 to 26 days (average 22.7 days). Loss of working days per working cattle ranged from 14 to 24 days (average 21.2 days) and the loss in draft energy per cattle was found to be 12.7 to 18.9 KW hour.

• 한국직업건강간호학회지
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• 제26권2호
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• pp.114-123
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• 2017

Purpose: This study aimed to explore personal as well as occupational factors and health status associated with work-life balance in Korean registered nurses. Methods: This study was a secondary data analysis using cross-sectional nationally representative data from the Korean Working Conditions Survey (KWCS) in 2014. Study participants included 450 registered nurses in South Korea. Descriptive analysis, Independent t-test, $x^2$ test, and Logistic regression analyses were performed using the SPSS 21.0 statistical program. Results: Work-life balance was reported in 70.6% individuals with 85.7% being male and 70.0% being female nurses. Logistic regression analysis revealed that being male good health state, having less than 40-hour working week, lower number of night duty, policy on flexible work arrangement were significant predictors of work-life balance. Conclusion: This study provided evidence that identify predictors of work-life balance in registered nurses in South Korea. Therefore, we need the actively support health care service promotion and prevention for work-life balance predictors.

• 한국전기전자재료학회논문지
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• 제25권1호
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• pp.53-57
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• 2012

In this paper, by designing 20 W class driving circuit for driving high-power LED (Light Emitting Diode), we are going to comparatively carry out the analysis of characteristics for power circuit according to each design method. In this case, 200 V 60 Hz was performed as input data. The electrical characteristics such as voltage, current and ripple are checked for constant current circuit and constant voltage circuit in the LED module. In addition, as the ripple has an influence on illumination of LED light, low temperature working (-20 [$^{\circ}C$]) and high temperature working(80 [$^{\circ}C$]) are measured to make sure the ripple characteristics in accordance with temperature. In low temperature operation -20 [$^{\circ}C$] measurements, both constant current circuit and constant-voltage circuit were less impacted on input fluctuation, whereas in the high temperature operation 80 [$^{\circ}C$], current voltage in constant voltage circuit was surge after 430 [hour]. Voltage current ripple of constant current circuit was much less than constant voltage circuit, therefore we can show that constant current circuit is more stable.

• 한국직업건강간호학회지
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• 제25권4호
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• pp.268-276
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• 2016

Purpose: The purpose of this study was to identify ego-resilience, self-leadership, stress coping which might influence job satisfaction in ED nurses. Methods: Data were collected by self-reporting questionnaires from 123 nurses in 10 EDs. Data analysis was done with SPSS/WIN 18.0 program. Results: Job satisfaction showed statistically significant differences depending on age, academic background, religion, clinical career, clinical career in emergency department, position, sleeping hour and reason for working. Job satisfaction showed significantly positive correlations with ego-resilience (r=.70, p<.001), self-leadership (r=.46, p<.001) and stress coping (r=.57, p<.001). Ego-resilience (${\beta}$=.54), sleeping hours over 8 hours (${\beta}$=.17) and reason for working (${\beta}$=.17) were significant predictors and accounted for 56.6%. Conclusion: Based on these results, it is needed to develop a program in order to improve ego-resilience of ED nurses.

• 대한가정학회지
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• 제45권6호
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• pp.61-75
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• 2007

This paper examines the intergenerational time transfers between married women and their co-residing elderly parents, and how they affect married women's labor force participation and work hour. The sample was drawn from the "2004 Time Use Survey" conducted by Korea National Statistical Office and the Heckman's 2-step model was estimated to examine these relationships. We find that women's caregiving time for their elderly parents reduces their likelihood of participating in the labor force. On the contrary, parental time transfers for married women increases the probability of their labor force participation. We find no evidence that the actual hours of paid work is related to the time transfers between married women and their elderly parents. In other words, after married women decide to participate in the labor force, their work hours are not affected by the time spent for parents and time gained from parents to them. Parental income is positively associated with the married women's labor force participation whereas husband's income is negatively related. The married women working in service occupation and earn salaries work longer hours than those employed as laborer and wage workers. Having older parents and owning the second home reduce working hours of married women.

• 한국산업보건학회지
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• 제26권2호
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• pp.219-224
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• 2016

Objectives: Lung cancer occurred with worker working in an urban bus garage. A survey was conducted to investigate whether lung cancer had causal relationship with work. Exposure to asbestos and diesel engine exhaust were suspected. Methods: Airborne asbestos was sampled on membrane filter and analyzed using phase-contrast microscopy. Airborne diesel exhaust was sampled using quartz filter and analyzed with thermal-optical analyzer. Polynuclear aromatic hydrocarbons was sampled using PTFE filter and XAD-2 tube and analyzed with gas chromatography-mass selective detector. Results: Airborne asbestos concentration was under 0.01 fiber/cc. Worker who warmed up an engine of urban bus for 2 hours was exposed to elemental carbon concentration, $15.5{\mu}g/m^3$. Only naphtalene among polynuclear aromatic hydrocarbons was detected. Conclusions: It was difficult to conclude about worker exposure to asbestos because working hour related asbestos was too short. In reviewing papers, the exposure to asbestos over 0.01 fiber/cc during exchange brake lining was found. It was identified that worker's occupational exposure to diesel exhaust based on elemental carbon was higher than the other occupational exposure to diesel exhaust.

• 한국산업보건학회지
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• 제24권3호
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• pp.383-392
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• 2014

Purpose: In this study, we sought to understand the risk factor for chronic disease of workers by studying the association between occupational standing time and metabolic syndrome(MetS) in full-time 300 male workers. Materials: Data on age, life habit, work related information of the subjects were surveyed using self-reported questionnaire and interview. MetS was identified based on the report of Alberti et al.(2009). As for the data analysis, SPSS 19.0 was used to conduct the descriptive statistic, ANOVA, Pearson correlation coefficient and multiple logistic regression analysis. Results: Daily working hour affects on the lifting heavy objects, running and strenuous exercise(r=-0.137, p<0.01), and total physical function decreased with the increase in age(r=-0.145, p<0.01). Also, obese was significantly associated with genuflection and bend over(r=-0.110, p<0.05). On multiple logistic regression analysis for the diagnostic indices of MetS, occupational standing time were significantly associated with waist circumference(odds ratio=0.885, ${\beta}$ value=-0.122, 95% CI=0.797-0.983, p<0.05) and triglyceride (odds ratio=0.873, ${\beta}$ value=-0.136, 95% CI=0.800-0.953, p<0.01). Conclusions: These results suggest that the working posture may be important risk factor in pathogenesis and growing of MetS and cardiovascular disease.

• The Journal of Korean Physical Therapy
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• 제4권1호
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• pp.59-67
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• 1992

This study was carried out by using questionnaires with 230 lumbago patients who visited the general hospitals, orthopedic clinics, neurosurgery clinics and physical treatment centers in Taequ. Korea for one month from December 20, 1991 to January 20, 1992. The result of this study is summarized as follows. 1. 203 patients consisted of 113 males and 90 females, while 65 patients were was which was the highest percentage. 2. The relation between their occupational properties and lumbago indicated that there was significant relation in their total employed period, job hours, monthly average incomes(P<0.01), job satisfaction, working posture, mental stress(P<0.01), excessive usage of bark during working, lifting of heavy thing and serious noises. 3. The relation between social properties and lunbago showed that there was a remarkable relation in their introspective character(P<0.05). daily average riding hour(P<0.05), smoking(P<0.01), drinking(P<0.01) and insufficient physical exercise. 4. The relation between the clinical properties and lunbago indicated that the lumbago was mainly caused by lifting the heavy thing, which was continued fur three months or longer. And, it was shown that they consider the lumbago as one of serious diseases. In addition. they positively evaluated their physical treatment. Therefore, it is required to accomplish the comprehensive treatment of this lumbago on the basis of the educational contents centering around its prevention by performing more suitable health education.

• 가족자원경영과 정책
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• 제13권1호
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• pp.1-21
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• 2009

The purposes of this study are to provide background information to develop a family-friendly work policy and to increase the effectiveness and feasibility of this policy. We surveyed the performance of family-friendly work policies, and workers‘ needs and utilizations of 17 family-friendly work policies. We also examined the factors that influence the utilization of family-friendly work policies. The study sample consists of 197 working mothers who have at least one child under age 10. The major findings are as follows: 1) The most-needed family-friendly work policy among working mothers is child care leave 2) Of those family-friendly work policies that are not currently provided, the most-needed policy is family care leave 3) The size of firms, the provision of substitutes, and 40-hour work schedules are statistically significant variables that influence the provision of necessary family-friendly work policies and 4) In addition, the work place culture is a very important factor related to the utilization of work- and family-friendly policies.

• 가족자원경영과 정책
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• 제24권2호
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• pp.23-48
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• 2020

This qualitative case study focuses on five small and medium-sized enterprises which have put family-friendly management into successful practice. Through in-depth unstructured interviews with five human resources managers and ten employees, we describe each firm's approach to work-life balance including working hour reductions, breaks, work flexibility, and parental leave to build an overall picture. We also discuss the four key factors of the CEO's role; democratic communication between all staff, the usefulness of family-friendly certification as a starting point; and governmental support for promoting work-life balance at small and medium-sized enterprises. Finally, we suggest three political implications of governmental support, namely CEO education, changing the criteria of family-friendly certification to redefine working hours and work flexibility, and incentives specifically for small to medium-sized enterprises.