• Korean Journal of Occupational Health Nursing
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• v.7 no.1
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• pp.65-82
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• 1998

This study was carried out in order to confirm the reliability and validity of the commitment inventory developed by Meyer and Allen, and to investigate commitment level of health manager, to compare two different professionals of health manager such as industrial health nurse and industrial hygienist to find out some characteristics that have effect on commitment. This survey was done by self-administered questionnaire to 227 respondents as the trainees of Industrial Safety Training Center, KISCO from June to December 1996. Authors classified commitment into two categories ; professional commitment and organizational commitment, and these two types of commitments have three different aspects ; affective, continuance, and normative commitment based on Meyer's inventory. The results were as follows; 1. Items of whole scales of the both type of commitments have three factors that represent three aspects of commitment ; affective, continuance, and normative commitment. This means that each type of commitment was reliable to use as measurement tool of three different aspects of commitment. Classification of items by factor analysis was more consistent in professional commitment than organizational commitment. Among 16 items of organizational commitment, four items were classified into different aspects of commitment with similar factor loading. 2. Commitment level of industrial health nurse was higher than that of industrial hygienist in affective, continuance professional commitment controlled by other characteristics. These differences can be due to other characteristics of specific task and background of health managers that were not used in this study. 3. The level of affective professional commitment was statistically different in age, sex, educational level, and that of organizational commitment was statistically different in only two variables such as age, and job tenure. The level of continuance professional and organizational commitments were different in sex group, but past history of employment have effect on continuance organizational commitment. The level of normative organizational commitment was affected by only age. As the above results, the tools of measurement of commitment developed by Meyer and Allen can be useful to measure the level of commitment of health manager. Three aspects of two types of commitments were influenced by different characteristics of health manager. Authors suggested future study on the affecting variables to the commitment such as background, task of health manager and organizational characteristics.

• Journal of Korean Society of Occupational and Environmental Hygiene
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• v.16 no.3
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• pp.264-275
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• 2006

MSDs(Musculoskeletal Disorders) and Job Stress have been recognized as one of major problems in industry these days according to the results of most industrial health/safety studies. Specifically, MSDs have been growing problems in Korea as well as in US and European countries with higher incidence rate every year. This study tries to understand characteristics of job stress and association between MSDs and job stress for the workers at automobile manufacturing industry. This study also tries to understand the differences in terms of job stress between white collar and blue collar workers. The results showed that there was definite association between symptoms of MSDs and some of major job stress factors. However, there were big differences in terms of associations between two groups(white collar and blue collar workers). The first group(white collar workers) showed more associations between symptoms of MSDs and some of major job stress factors than that of the second group(blue collar workers) although symptom rate of the second group was higher than that of the first group. It could be concluded that symptoms of the first group had more effects from job stress while symptoms of the second group had more effects from typical job risk factors based on the results of the study.

• International Journal of Industrial Entomology and Biomaterials
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• v.45 no.2
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• pp.115-125
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• 2022

In this study, we investigated the developmental characteristics and genetic diversity of seven populations of two-spotted crickets (Gryllus bimaculatus De Geer, 1773 (Orthoptera: Gryllidae)) raised in South Korea. Regarding the developmental characteristics of the species, we observed no statistically significant difference in the weight of the nymphs in the six populations we tested. After molting, although weight differences were observed between the populations in each stage of the developmental period, the average weight for each developmental stage was constant. We also analyzed mitochondrial COI gene sequences (DNA barcoding region) of the reared crickets collected from five insect farms and two national insect rearing facilities and the resultant sequences were analyzed together with the 12 sequences from foreign countries specimens obtained from public data. We detected six haplotypes from 111 specimens, indicating a low intraspecific genetic distance (~1.8%). The most dominant haplotype was overwhelmingly haplotype 1, which was found in all South Korean specimens and four specimens from China, Indonesia, and Germany. These findings indicate that the low genetic diversity of South Korean specimens can be explained by the fact that the G. bimaculatus population imported for feed from Japan in the early 2000s became a maternal group that spread throughout cricket farms in South Korea. In order to breed healthy cricket strains, it is necessary to increase genetic diversity by importing them from other countries through appropriate quarantine procedures.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.20 no.41
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• pp.61-78
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• 1997

Traditionally most of studies on voluntary turnover have focused on identifying the determinants of it under the implicit assumption that negative attitudue raises turnover rate and, in turn, it undermines organizational effectiveness. But, recently many scholars have argued that more focus be placed on the functionalty than the frequency of turnover. Based on the recent trend of voluntary turnover, this paper is to analyse the differences of the Intention to Leave(IL) level according to job characteristics(job variety, job importance, job autonomy, job identity, feedback)$\times$functionality(employee ability, attitude). Resulting from 2-way ANOVA, the Negative-attitude Group(NG) is found to expose significantly high IL level than the Affirmative-attitude Group(AG) in low job variety, low job autonomy, low job importance.

• Journal of Korean Society of Occupational and Environmental Hygiene
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• v.27 no.4
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• pp.333-351
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• 2017

Objectives: This study examines the relationships between indoor radon concentrations and distribution from soil geological mapping in the Hwacheon and Jangsu areas. Methods: GIS and a pivot table were used for inquiries about indoor radon contents, soil characteristics, and geological differences. Results: The Hwacheon area was characterized by the presence of normal and reverse faults as a passage of runoff for radon, sufficient occurrences of minerals containing uranium within granite as a radon source, a high concentration of radon within the granite area and clear differences of radon concentrations between granitic and metamorphic areas. The Jangsu area was characterized by the presence of normal faults, wide distributions of alluvium, and ambiguities on radon concentrations indoors among areas of geological differences. Considering the granite area and alluvium surrounded with granite areas, the characteristics of radon concentrations within soils and indoors in the Jangsu area are similar to those of the Hwacheon area. High concentrations are found with entisol and inceptisol in the Hawcheon area, but with entisol, inceptisol, and ultisol in the Jangsu area. High radon concentrations are found in sandy loam and/or loam. High concentrations are found in recently constructed or brick buildings, but low concentrations in traditional or prefabricated houses showing a high possibility of outward flow. Conclusions: The overall results suggest that radon concentrations in the Hwacheon and Jangsu area are dominantly influenced by geological characteristics with additional artificial influences.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.8
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• pp.456-465
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• 2018

This study was conducted to examine the correlations between fatigue, health perception, happiness, and health promoting behaviors, and to identify the influencing factors on health promoting behaviors of clinical nurses in two general hospitals. Data were collected from 153 clinical nurses from February 5 to March 30, 2018. Data were collected through personal interviews using a questionnaire. Data were analyzed using t-test, one-way ANOVA, Pearson's correlation coefficients, and stepwise multiple regression. Fatigue according to the general characteristics showed significant differences in drinking and job stress. Health perception according to the general characteristics showed significant differences in disease. Happiness according to the general characteristics showed significant differences in marital status, type of work, clinical career, nursing unit satisfaction, economic level, and job stress. Health promoting behavior according to the general characteristics showed significant differences in clinical career and economic level. Health promoting behaviors showed significant positive correlations with health perception and happiness, but a significantly negative correlation with fatigue. Happiness and economic level, which accounted for 24% of the variance, were significant predictors influencing health promoting behavior in clinical nurses. To improve health promoting behavior in clinical nurses, it is necessary to develop a program that can raise the happiness considering the economic level.

• Journal of Biosystems Engineering
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• v.34 no.4
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• pp.260-268
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• 2009

As a basic study to develop a high sensitive biosensor using film bulk acoustic resonator, the mathematical model for analyzing the resonance characteristics of bulk acoustic resonator with acoustic Bragg reflectors was investigated. The simulation results due to the number of acoustic Bragg reflectors with low and high acoustic impedance materials were compared with the experimental results for 1, 2.25 and 5 MHz of PZT based bulk acoustic resonators with various acoustic Bragg reflectors. At the fabricated bulk acoustic resonator with an odd number of acoustic Bragg reflectors, low and high acoustic impedance materials in sequence under the bottom electrode showed better resonance characteristics than even number of acoustic Bragg reflectors. The changes of resonance frequencies due to the increase of number of acoustic Bragg reflectors by simulation and experiment, respectively showed approximately similar tendency but some differences in input impedance between the experiment and simulation were found. The derived mathematical model for describing the resonance characteristics of the bulk acoustic resonator with acoustic Bragg reflector will be available for analyzing the design parameters for development of biosensor using bulk acoustic resonator.

• Journal of the Ergonomics Society of Korea
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• v.16 no.3
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• pp.61-70
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• 1997

This study is undertaken to investigate the differences of accident characteristics between occupational deaths and nonfatal injuries in overall industry of Korea. The national statistics of industrial accidents in the years 1991-1994 were extracted from the annual publications of Ministry of Labor. To make the statistical comparisons for the accident characteristics, we derived the destributions of occupational deaths and injuries in terms of injured person's age, work experience, tiem of accident, activity at time of accident, accident type, injury type, injured part of body, and agency of accident. The results show that the distributions of the occupational deaths are significantly different from those of the nonfatal injuries in all characteristics investigated in this study. These findings indicate that the accident prevention programs should be developed and implemented by taking into account the characteristics of working environments based on accident analysis.

• Journal of the Korean Society of Safety
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• v.28 no.5
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• pp.78-82
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• 2013

The purpose of this study is to review the labor force partitpation rate and work environment characteristics of female workers to provide basic information for establishment and implementation of effective policies related to accident prevention and workers health protection for female workers. It was analyzed employment status, work environment and injuries and illnesses based on economic activity census results, compensation of industrial injury and the second working condition survey. According to economic activity census results, female labor force participation rate has been steadily increased, whereas male labor force participation rate has been decreased since 1970. Industrial accident rate has been declined in male workers but that in female workers has been steadily increased even though male workers were higher accident rate than female workers. It was evaluated that female workers are vulnerable to industrial injuries and illnesses in the aspect of their working environment and employment status. Also, Substantial differences between female and male workers in occupational exposure patterns, occupational disease and occupational environments were observed. Therefore it was recommended that special care programs for female workers such as a specialized monitoring and management program should be introduced in the near future.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.11
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• pp.8001-8011
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• 2015

This study aims to find evaluative criteria of quality on the organic clothes with college student consumers, categorize them, establish the basis of evaluation criteria, and examine the roles of each attribute according to their demographical characteristics and the association between their quality evaluation and their purchase intention. College students' evaluative criteria of quality factors of organic clothes were three factor; "aesthetic symbolism", "mainterance efficiency", and "functionality". As a result, first this study showed significant differences from the evaluation criteria of organic clothes in sex, major and pocket money among demographical characteristics Second, this study found that college student consumers' experience of purchasing organic clothes considered "aesthetic symbolism", "mainterance efficiency", and "functionality" more important compared to non-purchase group. Third, it was found that there might be differences between future purchase intention group and non-repurchase intention group according to evaluation standard of organic clothes. There was significant differences in "functionality" between the two groups.