• Journal of Korean Society of Occupational and Environmental Hygiene
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• v.8 no.2
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• pp.254-263
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• 1998

A worker employed in a serpentine mine was found developed mesothelioma as the first case of Korea in 1997. Asbestos was known as a causative agent for mesothelioma. Thus, asbestos contamination in mines could be a big health threat to those workers who were unknowingly exposed. However, there was no report that any minerals found in Korea contained asbestos. This study was carried out to find the presence of any asbestiform fibers in minerals which could be obtained in Korean mines. We examined fifteen minerals from 44 mines which were suspected contaminated with asbestiform fibers. Asbestiform analysis was done with high resolution transmission electron microscope(TEM), with energy dispersive X-ray spectroscope(EDX) and X-ray diffraction(XRD) analyses. Among asbestiform fibers, chrysotile was found in chrysotile, serpentine, talc and pyrophylite specimens from 11 mines. Tremolite was found in tremolite and talc specimens from three mines. Mordenite was found in zeolite specimens from two mines. Wallastonite and sepiolite were found in wallastonite and sepiolite specimens respectively. Crocidolite, antigorite and actinolite were found from talc specimens. But no asbestiform fiber contaminants were found in doromite, vermiculite, limestone, marble, gypsum, kaolin, and clary specimens. Thus, these asbestiform fibers such as such as chrysotile, tremolite, mordenite, crocidolite, antigorite and actinolite could be the responsible agents for the health hazards such as mesothelioma and other cancers.

• Journal of Korean Society of Transportation
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• v.17 no.5
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• pp.19-32
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• 1999

In this study, the trip characteristics of workers in the city are systematically analyzed. The trip behaviors and socioeconomic characteristics of workers are analyzed using Person Trip Survey Data of 1988 and 1992 in Taegu Metropolitan area. With the results of behavioral analyses, the daily travel pattern of workers is shown as one tour contained two trips and it is relatively simple and stable. Also the rate using the same mode in a day is Presented as high ratio. So, it can be explained that the choice of worker\`s first trip is fixed his/her travel mode for his/her daily travel mode. Based on these analyses, the mode choice model for workers is developed by applying the Multi-nominal Logit Model with the choice set of bus, taxi, and car. The explanatory variables of this model include sex, age, auto, travel time, and cost. Empirical tests of the model show encouraging results. After that, the temporal transferability of the model is examined by the Pairwise t-test and five indexes far the model of 1988 and 1992. The results of examination are satisfied with each significance level of the explanatory variables and five indexes. Therefore. it can be concluded that the temporal transferability of this model developed in this study is resonable.

• The Journal of the Korea Contents Association
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• v.20 no.8
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• pp.223-231
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• 2020

This research has been conducted among 809 social workers in I city to examine the effects of professional autonomy and collaboration on the job satisfaction of social workers. Moreover, the study has been assessed with resources and data to reliably attain the results. Accordingly, the data findings for the research was used with SPSS 25, to examine its frequency, correlation, regression, and other necessary measures. Firstly, there were significant correlations among professional autonomy, collaboration, and job satisfaction. Second, professional autonomy has directly influenced the social workers without the mediator variable on their job satisfaction. Lastly, the collaboration with professional autonomy had also shown decisive effects on the job satisfaction level. Therefore, based on the results of this research, we need a sustainable strategy and advanced collaboration with professional autonomy to enhance and reform our current social service system.

• The Journal of the Korea Contents Association
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• v.17 no.1
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• pp.242-261
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• 2017

The purposes of this research are to explore factors that affect re-employment revitalization of the semi-aged workers and to seek practical and specific improvement plans to activate the semi-aged worker's re-employment. For the purposes of this research, face to face interviews were conducted between March 18th and April 10th, 2016 among 375 semi-aged who are currently searching for a job or re-employed among the semi-aged between 50 and 64 years old and reside in Daegu Metropolitan City. According to logistic regression analysis, sex, subjective health condition, working period, and information supply have statistically significant positive impacts on re-employment of the semi-aged workers. On the other hand, simple labor work and seeking job period have statistically significant negative impacts on re-employment of the semi-aged workers. Finally, policy implications for the improvement of re-employment of the semi-aged workers were introduced and discussed.

• Journal of the Korean Home Economics Association
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• v.27 no.1
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• pp.111-126
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• 1989

The aim of the present study is to research into the household work time change and its structure in urban home makers by the choosen eleven studies and KBS's Data 1981, 1983, 1985, 1987. This study were proceeded under some limitations, it is choosen eleven studies that is different region: large city, medium and small town, and the household work's categories of original auther were changed. And KBS's Data was composed of general formation without personal character of home maker: FLC, number of childeren, family type, education, region. Although this study have a certain meaning of implementation, research into the household work time change and its's structure. The major findings of this study can be autlined as follows: (1) Total household work time did'nt so much changed through the choosen eleven studies compared with the last twenty years ago. In the change of each province household work time, time connected with meals and dwelling did not showed consistancy of change. But cloth laundering and mending time of 80's were declined compared with 70's. Family care time of 80's was increased, home management and buying time was declined untill '85, but again increasing trend '87. In choosen eleven studies, the household work time structure of urban home makers can be outlined: time connected with Meals>Family care>Cloth laundering and mending>Dwelling>Home management and Buying. (2) KBS's time-series data were analized as follows: a) Total household work time of '87 was declining gradually in weekday (34 minutes), sat. (41 minutes), sun (1 house and 2 minutes) compared with '81. b) The change of each province household work time: the time of cooking and sewing home management were declining gradually in its Mean time and its ratio of acters. The acter ratio of household worker in '81, '83, '85 was composed Cooking > Cleaning > Laundering > Home management > Buying > Child care > Sewing. In '87 was composed Cooking > Cleaning > Laundering > Buying > Home management > Child care > Sewing. c) The structure of household work time revealed some differences in each year and a day of the week.

• Journal of Digital Convergence
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• v.16 no.2
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• pp.225-234
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• 2018

The purpose of this study was to examine relationships among drinking motives, acculturative stress and problem drinking, and then to identify the influencing factors of problem drinking in foreign workers. A total of 120 foreign workers recruited from two shipyards in G city. Self-reported questionnaire survey was conducted from October to December, 2016. As a result, a rate of problem drinking in foreign workers was 39.2%. According to the multiple regression analysis, their problem drinking was significantly influenced by social motives (${\beta}=.368$ p=.003) and conformity motives (${\beta}=.337$ p=.005) as a subscale of drinking motives and homesickness (${\beta}=-.197$, p=.009) as a subscale of acculturative stress, explained 39.5% of the total variance (F=26.849, p=.000). Based on our results, an education program using drinking motives, acculturative stress should be developed to prevent problem drinking in foreign workers.

• Fashion & Textile Research Journal
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• v.8 no.2
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• pp.203-208
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• 2006

The purpose of this study is to examine the ergonomic working uniform. Developing a prototype uniform will be the first stage in aiming to create a working uniform in the construction field. This study was conducted using a questionnaire in the construction field of Daegu city, and the data was gathered from 121 questionnaires. Some of the questions that were asked, were about the case of putting on and removing the uniform and if any areas of uniform caused discomfort. The areas of the uniform that caused problems were the waist, knee, shoulder, arm and neck regions. The free range of movement of these regions were restricted and caused the person to feel cramped. The results of the questionnaire called for improvements to the knee, waist, shoulder and crotch area. The prototype that was developed offered more range of movement in the knee and crotch area, while not causing the uniform to be cramped too much during motion. The prototype also improved comfort by raising the waist line of back part, and by having the ability of the uniform to be tightened or loosened with zipper according to the persons preference. The upper area of the uniform was improved by dropping the shoulder seam line which enhanced comfort and also allowed a better fit for the elbow and wrist. The prototypes additional feature included a slit zipper in the sides of the trousers and a gusset in the under arm area to improve breathability and sweat elimination.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.4
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• pp.1612-1619
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• 2013

This study is to investigate on the influence of mental health and job satisfaction on perceived job stress of financial companies. The subjects of research were total 132 working at the financial company in T and J city Gangwon Province from September 20 to October 15, 2012. The survey instrument used was 43-item scale for evaluating financial worker KOSS and 18-item scale for mental health, 12-item scale for job satisfaction. Data was analyzed by using SPSS Win17.0 program, ANOVA, t-test, pearson's correlation coefficient, Multiple regression analysis. In a comparison of factors of Job stress and mental health demonstrated positive correlation and showed significantly. Job satisfaction demonstrated negative correlation and showed significantly. Also, for the financial workers solve the Job stress and support positive significant in there's job satisfaction, it need to nursing intercession to supply more better service and financial environment.

• Journal of Labour Economics
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• v.24 no.1
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• pp.1-33
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• 2001

Public investment in education has been justified by assumed positive externalities of education. Using the 1995 10% Population and Housing Census and 1998 Korean Labor and Income Panel Study, this study first examines the distribution of human capital across Korean cities and industries, and second, investigates the sizes of external economies of education by exploring how the average schooling of workers in cities and industries affect an individual worker's hourly wage. Generally, the average schooling of workers in the capital region cities is much higher than in other cities and the average schooling of workers in high tech industries is much higher than in other industries. As the average years of schooling in a city increases by one year, workers with the same personal and job characteristics such as sex, education, experience, occupation, and firm size, earn about 3% more. Also as the average years of schooling of workers in an industry increases by one year, the workers with the same personal and job characteristics earns about 5~7% more.

• Journal of Korean Society of Occupational and Environmental Hygiene
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• v.26 no.2
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• pp.210-218
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• 2016

Objectives: The objectives of this study were to investigate female labor workers' occupational stress and musculoskeletal symptoms and to identify the effects of their occupational stress and musculoskeletal symptoms on their health-related quality of life. Methods: A survey was conducted through direct interviews using a musculoskeletal symptoms questionnaire, the Korean Occupational Stress Scale(KOSS), and the Short-Form 36-Item Health Survey(SF-36). Subjects were 112 female labor workers in three factories in D city who were selected by convenience sampling. Results: Factors significantly affecting health-related quality of life were found to be: occupational stress(${\beta}$=-.36); degree of pain, with medium pain(${\beta}$=-.31) and extremely severe pain(${\beta}$=-.24); duration of pain, with more than 1 week-less than 1 month(${\beta}$=-.25) and more than 6 months(${\beta}$=-.16); frequency of pain, with once per 2-3 months(${\beta}$=-.22); responses to pain such as medical leave, use of worker's compensation insurance, task change, etc.(${\beta}$=-.16), and Slightly difficult(${\beta}$=-.16) versus Not hard at all. These variables demonstrated that health-related quality of life is 48%(F=11.72, p<.001) in female workers. Conclusions: To improve female labor workers' health-related quality of life based on the above results, occupational health managers should reduce the workers' occupational stress, develop and apply health interventions regarding musculoskeletal symptoms, prevent the early onset of musculoskeletal symptoms, and protect and promote the workers' health.