• Journal of the Korean Society of Safety
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• v.10 no.3
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• pp.96-105
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• 1995

The better industry develops, the more spaces need but in the limited area. Most building become larger and more complicated if the more spaces need in the constant area. And this leads to do underground work in long period generally six(6) months for 6 basement stories due to the selection of TOP DOWN technique. Working environment in this underground area can be problems and should not be overlooked, because air quality in underground spaces become quickly worse. Recently, department name to control construction safety has been changed to ENVIRONMENT & SAFETY TEAM from SAFETY TEAM. This means that it is very important to control against environmental condition at site so much. Overall construction work as well as underground work should conform to the requirement of working environment, particularly against inhabitants around the construction area. Strut protection, one of earth protection method, in case to 40m long strut may become weaker due to thermal stress or its longitudinally compressive strain and the another one, earth anchor protection may not be applied to the site In case of encroaching on vertical underground borderline because of regulation to prohibit it. It is necessary that TOP DOWN technique should be introduced in order to solve the external and internal problem of the site such as difficulty level of the work, potential danger with excavating depth, and shortening workperiod. It is needed that improving way of working condition should be shown and simplified computer simulation program should be also provided for checking pollution level & ventilation, excluding of lighting problem here. Results measured with conformance to the Regulation for Working Environment Measurement, enforced by Ministry of Labor have been applied to the computer program developed here. Sample air taken at unit workplace which was considered as exposing condition of pollutant at breathing point and within a range of behavior of the workers, Identified exposing group in underground work, using Moded Flow Life Finally, three types of ventilation system, type I with blower & ventilator, type II natural supply with mechanical ventilation system, and type I mechanical ventilation with Drivent Fan Unit System are selected for this study.

• Korean Journal of Health Education and Promotion
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• v.19 no.2
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• pp.139-154
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• 2002

This study was conducted to examine to causes and symptoms of stress and factors influencing stress management of workers in beauty shops. 811 people who were working in the shops located in Daegu City and Kyungbuk Province were selected as subjects of this study. Data were collected from April 10, 2000 to July 10, 2000. The results of this study can be summarized as follows. According to general characteristics of the respondents, female was 90.8%. 42.1 % of them was in their twenties and 73.7% of them did not marry. 57.5% of the respondents grew up in big cities and 41.1% had no religion. 63.6% was graduated from junior colleges. 44.6% of them worked for below I year and 33.9% earned below four hundred and ninety thousand won per month. 55.8% of them was satisfied with their work aptitude, while 34.2% was not satisfied with it. In the case of satisfaction level with working environment, ‘common level’ was 46.3%, while 12.8% of them was unsatisfied with it. In the case of stress level by factors of stress related to working, male was higher (9.34 $\pm$ 2.38 points). Those who grew up in towns or villages and those who belonged to the middle class showed high stress level. Those who married and those who graduated from high school also displayed high stress level. It also appeared that monthly income influenced the stress level related to working.. The extent of stress level influencing physical causes appeared in order of health condition, education level, sex, satisfaction level with work aptitude, economic status, and working hours. The extent of stress level influencing whole organizational level appeared in order of satisfaction level with work aptitude, working hours, education level, health condition, and sex. The extent of stress factors influencing depressed feeling of stress symptom appeared in order of working hours, sex, amount of smoking, absence due to stress, age, health condition, and education level. The extent of influencing factors on active stress management appeared in order of satisfaction level with work aptitude, health condition, size of the shop, drinking, sex, and the number of day off. The extent of influencing factors on avoidable stress management appeared in order of age, absence due to stress, drinking, health condition, and sex.

• The Korean Journal of Nuclear Medicine Technology
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• v.14 no.1
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• pp.61-66
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• 2010

Purpose: Recently, Department of Nuclear Medicine have an interest in Video Display Terminals (VDT) syndrome including musculoskeletal disorders, ophthalmologic disorders, trouble of electromagnetic waves and stress disorders occur to VDT workers as the growing number of users and rapid pace of service period supply in large amount. This study research on the actual condition for VDT syndrome in Nuclear Medicine, Seoul National University Hospital (SNUH), discover the problem and draw a plan of upcoming improvement. The aim of this study establish awareness about VDT syndrome and is to prevent for it in the long run. Materials and Methods: Department of Nuclear Medicine, SNUH is composed Principle part, Pediatric part and PET center. We estimated risk factors visit in each part directly. Estimation method use "Check list for VDT work" of Wonjin working environment health laboratory and check list is condition of VDT work, condition of work tables, condition of chairs, condition of keyboards, condition of monitors, working position, character of health management and other working environment. Analysis result is verified in Department of Occupational and Environment, Hallym University Sacred Heard Hospital. Results: As a result of analysis, VDT condition of Department of Nuclear Medicine, SNUH is rule good. In case of work tables, recent of things are suitable to users upon the ergonomical planning, but 15% of existing work tables are below the standard value. In case of chairs are suitable, but 5% of theirs lost optimum capacity become superannuated. The keyboards are suitable for 98% of standard value. In case of monitors, angle control of screen is possible of all, but positioning control is impossible for 38%. In case of working position, 10% is fixed positioning for long time and some of the items researched unsuitable things for standard. At health management point, needed capable of improvement. Also, other working condition as lighting, temperature, noise and ventilation, discovered the problem, but is sufficient to advice value. Conclusion: VDT syndrome is occurrences of possibility continuously, come economical expensive about improvement, is inherent in various causes and originate without your knowledge. So, there is need systematic management system. In Nuclear Medicine, VDT syndrome make it better that constant interest and effort as improvement of ergonomical working environment, improvement of working procedure, regular exercise and steady stretching, and can be prevented fairly. This promote physical and mental condition of worker in top form in comfortable working environment, so this is judged by enlargement of operations efficiency and rising of satisfaction ratings of the inside client.

• The Journal of Korean Academy of Prosthodontics
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• v.34 no.1
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• pp.31-69
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• 1996

The purpose of this investigation was to analyze stress distribution in implant supporting tissue according to different types of attachments such as combination bar attachment, Hader bar attachment, O-Ring attachment and Dal-Ro attachment that are used in mandibular overdenture by using two osseointegrated implants, to study the influence that POM IMC used in bar type attachment has in implant supporting tissue and compare the preceding analyses to find out an effective stress distribution method. Three dimensional photoelastic method was used to obtain the following results. (A) Analysis of stress distribution according to attachment type 1. Under vertical load condition, compressive stress was seen at implant supporting area of working side on all the photoelastic models but in Hader bar attachment tensional stress was seen at distal upper area of implant supporting area. Relatively Hader bar and O-Ring attachment showed even stress distribution pattern. 2. Under vertical load condition, compressive stress at implant apex area and tensional stress at implant lateral supporting area were seen at nonworking side of all models. 3. Under $25^{\circ}$ lateral load condition, general compressive stress was seen at working side implant supporting area in most of the models, especially at distal upper supporting area higher compressive stress concentration was seen in combination bar attachment and tensional stress concentration, in Hader bar attachment. 4. Under $25^{\circ}$ lateral load condition, compressive stress at implant apex area and tensional stress at implant lateral supporting area were seen at nonworking side of all models, except O-Ring model which showed compressive stress only. (B) Influence of POM IMC to stress distribution in bar type attachment 5. Under vertical load condition, better stress distribution pattern was seen at working side of combination bar and Hader bar attachment model using POM IMC. 6. Under vertical load condition, stress value was increased at nonworking side of combination bar attachment model using POM IMC and tendency of increasing compression was seen at nonworking side of Hader bar attachment model using POM IMC. 7. Under $25^{\circ}$ lateral load condition, better stress distribution pattern was seen at working side of combination bar attachment model using POM IMC but tendency of increasing stress was seen on working side of Hader bar attachment model using POM IMC. 8. Under $25^{\circ}$ lateral load condition, stress reduction was seen at nonworking side of combination bar attachment model using POM IMC but tendency of increasing stress was seen at nonworking side of Hader bar attachment model using POM IMC.

• The Korean Journal of Emergency Medical Services
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• v.17 no.3
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• pp.39-51
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• 2013

Purpose: The purpose of the study is to investigate the influencing factors of turnover intention in hospital paramedics. The factors included the job condition, job stress, and turnover intention. Methods: The subjects were 200 paramedics in hospital. Data were analyzed using frequency, t-test or one way ANOVA, Pearson's correlation, and multiple regression analysis with SPSS WIN 20.0 program. Results: Job stress was 3.59 points; job condition, 2.96 points; turnover intention 3.64 points. When the job stress was high, the satisfaction with job condition was very low and the turnover intention increased. When the job satisfaction was high, turnover intention decreased. factors affecting the turnover intention were annual income, turnover frequency, workload, and working department, role conflict, and personal relationship. Conclusion: It is necessary to establish the job description of paramedics and improve the working condition in the hospitals.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2016.05a
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• pp.72-73
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• 2016

Working Posture is an important factor directly connected with quality and productivity of the construction project. In particular, High-rise building construction is required to manage the working posture due to the repetitive task and unfavorable working condition such as high place work, limited space. However existing construction planning of high-rise building construction has a negative effect on the labor's productivity because it is not insufficiently considered for working posture. Therefore the purpose of this study is to suggest a work that needs improvement by analyzing labor's working posture quantitatively using OWAS method. These results would provide the basic information to improve the productivity of the construction project by supporting the construction plan considering the working posture in high-rise building.

• Journal of the Korean Society of Safety
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• v.37 no.5
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• pp.62-73
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• 2022

This study investigates the working conditions of shift workers according to age group by analyzing the sixth Korean Working Conditions Survey's data. A total of 1,323 shift workers were extracted from the dataset. Three age groups (A: 20s-30s, B: 40s-50s, C: 60s and above) were statistically compared in terms of health problems, emotional hazard exposure, work-life imbalance, and satisfaction with working conditions. Elderly shift workers (those in their 60s and above) had significantly more severe health problems and work-life imbalance, greater exposure to emotional hazards, and lower satisfaction with working conditions than young shift workers (those in their 20s-50s). The study's findings reveal the characteristics of working conditions for elderly shift workers and would be useful for improving shift workers' quality of life, as well as safety and productivity in the workplace.

• Journal of the Ergonomics Society of Korea
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• v.30 no.4
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• pp.525-534
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• 2011

This paper describes the current status of musculoskeletal disorders(MSDs) and its ergonomic risk factors, including the preventive intervention in terms of the working conditions and health promotion among agricultural workers. Korean agricultural workers have been exposed to the poor working condition. They have suffered from a variety of work-related injury and diseases more than the general population or the other occupational group. MSDs are one of the most prevalent problems threatening the agricultural worker's health and quality of life. Low back pain, osteoarthritis of hip and knee joint and carpal tunnel syndrome are well known MSDs that was found easily and frequently among agricultural workers. MSDs are worsened by poor ergonomic working conditions such as heavy weight lifting, repetitive movement and awkward posture which involves squatting with long sitting work on the ground, long working hours and heavy workload which are inherent in the greater part of agricultural works. Even though Korean agricultural workers are very weak population in terms of occupational safety and health, no many studies were conducted in the past and no many social and institutional supports were provided sufficiently. We need more interests and efforts in agricultural fields to improve its working condition and to promote health status of agricultural workers.

• Journal of Korean society of Dental Hygiene
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• v.12 no.6
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• pp.1138-1147
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• 2012

Objectives : The purpose of this study was to grasp association with dental hygienists' job expectation through correlation between curricular subjects for the department of dental hygiene and job. Methods : It carried out convenience sampling of dental hospitals where are located in Capital Area, and then conducted a self-administered questionnaire survey targeting 274 dental hygienists who are working here. The statistical program was analyzed by using PSAW 18.0. Results : Research subjects' 60.2% experienced turnover. Its reason accounted for 31.7% with the working condition. As a result of examining difference in experience of turnover according to dental hygienists' individual characteristic and working form, the significant difference was shown in age, marriage, annual salary, working institution, and career. In consequence of confirming association between curricular subjects and job, the majority showed high correlation. However, the correlation with oral physiology, clinical dental hygiene, and dental clinics showed low correlation as the insignificant variable. Conclusions : As a result of this study, the high correlation between curricular subjects and job can be considered to reflect dental hygienists' job expectation. On the other hand, the working condition, professional sense, and turnover experience, which are factors related to dental hygienists' job expectation, were indicated to fail to meet job expectation.

• Journal of Korean Academy of Rural Health Nursing
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• v.5 no.1
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• pp.25-32
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• 2010

Purpose: The purpose of this study was to provide a fundamental data for improving nurses' working environment and securing quality of nursing care. Method: It was consisted of analyzing education system and employment status of nursing personnel, and focus group interviews in Cheju Island. Results: Total graduates were 4,139 by 2006 from two nursing schools in Cheju. Difficulties in working conditions from focal group interviews were classified into four categories; Lack of anonymity of nurses, the burden from performing nontraditional nursing roles due to shortage of physicians, irregularity of working schedule and too many night shifts for taking care of female colleague's condition related with pregnancy, and poor support for implementing and developing professional nursing. Conclusion: A survey revealing working condition of nursing personnel of all health care institutions in Cheju Island will provide the comparison between Cheju Island and other areas. It needs to cultivate the public opinion about the importance of quality of nursing care proceeded by the broad support for improving nurses' working environment. It is essential to support continuing education to bring professional nurses and establishing the system to utilize them to overcome the shortage of physicians in Cheju Island.