• 한국직업건강간호학회지
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• 제20권3호
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• pp.240-249
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• 2011

Purpose: The purpose of this study was to identify the factors influencing the nursing students' job-esteem. Methods: The data were collected from March 1 to 30, 2011 using questionnaires. The subjects were recruited from the department of nursing at a college in Kyungnam. The collected data were analyzed using SPSS descriptive statistics, mean and standard deviation, t-test and ANOVA, Pearson's Correlation Coefficient, and Stepwise Multiple Regression Analysis. Results: The significantly factor which is a variable predicting best job-esteem of college nursing students by ability and opportunity to getting accounting for 13.4% (${\beta}$=.277) of the prediction, followed by work conditions, lifestyles, and sense of honor that accounted for 27.6%. Conclusion: Based on the results of this study, nursing educational program and curriculum development should give nursing students a variety of experience for their career.

• 한국산업보건학회지
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• 제3권2호
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• pp.141-151
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• 1993

Blood samples obtained from 200 adults who had visited the "S" general hospital were analyzed to compare the zinc protoporphyrin (ZPP) levels quantified by high performance liquid chromatograph (HPLC) and by hematofluorometer (HF) to investigate the methodological difference if any and the relationship between the levels of blood lead and ZPP among no-lead exposed adults. Also investigated were the distribution of ZPP and protoporphyrin IX (PPIX) concentrations, the establishment of normal levels of blood ZPP and blood lead, and the contribution of age and sex factors to these values. These subjects had no previous occupational exposure to lead. The results obtained were as follows : 1. The mean values of blood lead for male and female subjects were $9.46{\pm}2.44{\mu}g/dl$ and $8.09{\pm}2.17{\mu}g/dl$, respectively. The difference observed in the mean concentrations between male and female subjects was statistically very significant. 2. The mean values of blood ZPP by HPLC for male and female subjects were $15.94{\pm}4.55{\mu}g/dl$ and $22.26{\pm}6.61{\mu}g/dl$, respectively. The difference observed in the mean concentrations between male and female subjects was statistically not significant. The mean values of blood PPIX by HPLC for male and female subjects were $2.51{\pm}1.78{\mu}g/dl$ and $2.81{\pm}1.56{\mu}g/dl$, respectively. The difference observed in the mean concentrations between male and female subjects was statistically not significant. 3. The mean values of blood ZPP by HF for male and female subjects were $28.44{\pm}7.11{\mu}g/dl$ and $37.77{\pm}8.04{\mu}g/dl$, respectively. The difference observed in the mean concentrations between male and female subjects was statistically very significant. 4. No statistically significant correlation was found between the levels of blood ZPP and blood lead. 5. The ratio of ZPP and protoporphyrin IX (PPIX) concentration to erythrocyte protoporphyrin (EP, EP=ZPP+PPIX) concentration was 87.4% and 12.6%, respectively. 6. A statistically very significant correlation was found between the ZPP concentrations determined by HPLC and the values by HF (r=0.7565). The ZPP concentraitons quantified by HF were 1.75 times as high as the values obtained by HPLC. 7. The blood ZPP concentrations quantified by HPLC, HF, and spectrofluorometer (SF) from the blood samples obtained from 14 lead-exposed workers and from 16 no-lead exposed adults showed wide variations. The ZPP concentrations by HF were the highest followed by the levels obtained by SF and by HPLC. In the exposed group, no statistically significant difference was found among three methods of quantifying blood ZPP levels. In the no-lead exposed group, however, statistically significant difference was observed among these methods. The ZPP concentrations by HF were about twice as high as those of by HPLC or by SF. Among three methods of quantifying blood ZPP (HPLC, SF and HF), the results revealed significant difference. Therefore it is suggested that objective methods of quantifying blood ZPP and a system of correcting different ZPP levels be developed by the ministry of Labor.

• 한국융합학회논문지
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• 제11권2호
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• pp.199-205
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• 2020

이 연구는 OECD 국가 중에서 유일하게 없는 공인탐정제도를 도입할 경우에 발생할 수 있다는 직업적 가치와 타당성에 대해서 논의하였다. 연구의 절차와 방법의 다양한 선행연구검토와 사례연구를 통한 질적연구 방식으로 전개되었다. 이러한 과정을 통해 얻어진 연구결과는 다음과 같다. 첫째, 탐정은 공공재로써 다양한 사회적 가치를 가지고 있는 것으로 나타났다. 근본적으로 공공서비스의 질적 향상과 더불어 국가재정의 건전성을 확보할 수 있는 정책대안이라고 할 수 있다. 이를 통해 국민들의 국가기관에 대한 신뢰는 더욱 향상될 수 있다. 둘째, 탐정은 이미 다른 국가에서도 합법적으로 인정되는 만큼, 양성화를 통해 신 직업으로써의 사회적 역할을 충분히 수행할 수 있을 것이다. 다음으로 공인탐정제도 분야에 대한 연구가 발전하기 위해서는 양적 데이터에 기반한 연구가 더욱 활발하게 이루어져야 할 것으로 판단된다.

• 한국도서관정보학회지
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• 제41권4호
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• pp.99-126
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• 2010

본 연구는 질적 다방법을 적용하여 복합 현상인 직업 사회화 경험의 실체이론을 구성하는 요인들을 통합 도출한 것이다. 순차적으로 이루어진 일련의 3개 질적 선행연구의 총 참여자는 이론적 표집에 의한 42명의 현직 사서 및 사서교사들이다. 질적 다방법 접근의 최종 통합방법으로서 근거이론 접근을 적용하여 3개의 선행연구 결과 및 심층면담자료의 최종분석과 비교, 재검토, 통합이 이루어졌다. 그 결과 도출된 통합 구성요인은 다음과 같다: 전공 공감, 주변부 인식 극복하기, 사회적 몰이해, 열악함, 업무 공감, 사회 변화, 이용자에 대한 인식, 도서관 조직문화, 조직인간관계, 지속교육과 교류, 전문성 추구, 업무 전략, 대인관계 전략, 슬럼프와 위기 대응 전략, 개인 성장 및 발전도모전략, 조직 대응 및 몰인식 대응 전략, 사서직과 자아일치, 자아 불일치.

• Nuclear Engineering and Technology
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• 제55권2호
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• pp.725-733
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• 2023

The Korea Institute of Radiological and Medical Sciences has started a radiation epidemiological study, titled "Korean Radiation Worker Study," to evaluate the health effects of occupational exposure to radiation. As a part of this study, we investigated the methodologies and results of reconstructing organ-specific absorbed doses based on personal dose equivalent, H_p(10), reported from 1984 to 2019 for 20,605 Korean radiation workers. For the organ dose reconstruction, representative exposure scenarios (i.e., radiation energy and exposure geometry) were first determined according to occupational groups, and dose coefficients for converting H_p(10) to organ absorbed doses were then appropriately taken based on the exposure scenarios. Individual annual doses and individual cumulative doses were reconstructed for 27 organs, and the highest values were observed in the thyroid doses (on average 0.77 mGy/y and 10.47 mGy, respectively). Mean values of individual cumulative absorbed doses for the red bone marrow, colon, and lungs were 7.83, 8.78, and 8.43 mSv, respectively. Most of the organ doses were maximum for industrial radiographers, followed by nuclear power plant workers, medical workers, and other facility workers. The organ dose database established in this study will be utilized for organ-specific risk estimation in the Korean Radiation Worker Study.

• Safety and Health at Work
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• 제13권4호
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• pp.415-420
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• 2022

Background: Healthcare workers perform an emotionally exhausting daily work activity, making them prone to occupational hazards, namely psychosocial ones. This study aims to assess the impact of psychosocial risk factors on healthcare workers' mental health. Methods: A cross-sectional study was developed between May and June of 2021 with 479 healthcare workers from Portuguese hospitals. The Depression, Anxiety and Stress Scale was used to assess mental health, and psychosocial risks were assessed through the Health and Work Survey - INSAT. Statistical analysis was performed to identify the psychosocial risk factors related to anxiety, depression, and stress. Subsequently, a multiple linear regression was performed to identify the models that better explained psychosocial risk factors' relationship with anxiety, depression, and stress. Results: Data showed a strong exposure to psychosocial risks. Work pace and intensity, work relationships, and emotional demands stood out with higher global average percentages for yes answers to "exposure and discomfort." The analysis of the b values and p-values from the multiple linear regression shows that some cross-sectional psychosocial risks are predictors of anxiety and stress dimensions, and other psychosocial risks differ in the two mental health dimensions. However, it is important to highlight that healthcare workers still showed great joy and pleasure in performing their work activities. Conclusion: Support network development in the work environment is needed to prevent healthcare workers' emotional stress and promote their psychological well-being. Therefore, new research is essential to understand the psychosocial risks that affect healthcare workers and assess the less visible effects of work-health relationships.

• 대한임상검사과학회지
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• 제49권1호
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• pp.48-54
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• 2017

본 연구는 임상병리사를 대상으로 직무스트레스의 정도를 파악하고, 이들 간의 상관성을 규명함으로써 직무스트레스의 감소를 위해 건강을 높일 수 있는 방안을 마련하는데 기초자료를 제공하고자 수행한 서술적 조사 연구이다. 임상병리사의 직무스트레스는 최대 100점에 49.74점으로 나타났고, 하부영역별로 직무불안정이 64.42점으로 가장 높았고, 조직체계가 52.46점, 보상부적절이 52.30점, 물리적환경이 51.15점, 직무 요구도는 49.57점, 직무자율성결여는 48.43점, 관계갈등은 39.78점 순이었고, 직장문화는 39.77점으로 가장 낮게 나타났다. 본 연구결과를 통해 임상병리사의 직무스트레스에 관련한 요인들의 상관성을 확인하였고 직무스트레스가 높은 군에서는 직무불안정을 감소시키고 건강증진에서의 신체활동을 증가시키는 활동이 요구되고, 이를 통해 직무스트레스 감소를 위해 절실한 프로그램의 개발이 요구되고. 건강상태 인자에 대한 정보를 향후 조사해야 할 것으로 사료된다.

• 한국산업보건학회지
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• 제15권1호
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• pp.8-18
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• 2005

Adsorption capacity for the charcoal were tasted in this study to verify the performance of them for the use of the sampling media in industrial hygiene field. Two set of experiments were conducted. The first experiment was to test performance of the tested charcoal tube that were assembled in the laboratory with the use of the GR grade charcoal. The other tests were investigate the adsorption capacity of the charcoal tested in this study and charcoals embedded in the commercial charcoal tubes. Known air concentration samples for benzene, toluene, and o-xylene were prepared by the dynamic chamber. 1. At low air concentration levels (0.1${\times}$TLV), there was no significant differences between the tested charcoal tubes and the SKC charcoal tubes. This implies that there is no defect with the adsorption capacity of the charcoal. 2. At high concentration with 60 minutes sampling, the breakthrough were found only in the tested charcoal while no breakthrough were shown in the SKC charcoal. 3. From the breakthrough tests for the charcoal, the micropore volume(Wo) were calculated by the curve fitting with the use of Dubinin/Radushkevich(D/R) adsorption isotherm equation. The calculated values were 0.687cc/g for SKC, 0.504cc/g for Sensidyne, and 0.419cc/g for the tested charcoal(Aldrich). 4. Adsorption capacities were obtained from the isotherm curves shown adsorption capacities at several levels of the challenge concentration. All range of the air concentration concerned in industrial hygiene, the SKC charcoal showed approximately two times of adsorption capacity compared to the tested charcoal.

• 대한인간공학회지
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• 제32권4호
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• pp.321-331
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• 2013

Objective: The aim of this study is to review the literatures on the regulation, standard and guideline for the human vibration in Korea and other countries. Background: This review can be used to prevent various diseases caused by the human vibration as a basis for the development of the policy. Results: In Korea, the general employers' duties related to human vibration are set forth the Health Measures(Article 24) in the Occupational Safety and Health Act. And then an employer shall take measures to protect the health of the workers concerned by improving other working conditions relating to working hours for the vibration prevention measures referred to in Article 24 of the Act. The European Union adopted a Directive in 2002 on minimum requirements for the health and safety of workers exposed to vibration. New Regulations on Vibration at Work will be introduced in Great Britain on 2005 to implement the Directive. In the U.S., both ANSI and ACGIH adopted the ISO standard for measurement and suggested exposure action and limit values. In Japan, the Ministry of Labor decided that the vibration syndrome among operators of rock drills and riveters etc. could be included in an occupational disease(1947). In addition, ISO standard was based on proposals and draft documents of many countries such as U.K, Japan and European, etc. Conclusion: In Korea, Occupational Safety and Health Act prevent vibration to health, but do not include exposure limits. It is therefore important to consider the new duties regarding to vibration risks added to the general duties.

• 한국산업보건학회지
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• 제23권1호
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• pp.27-34
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• 2013

Objectives: The purpose of this study is to calculate the worker-DNEL (Derived No Effect Level) values using the REACH guidance and compare the calculated DNELs with existing Korea occupational exposure limits (KOELs) for evaluation of the applicability of the worker-DNELs as provisional occupational exposure limits for chemicals that are not established KOELs in the workplace. Methods: The worker-DNELs for 46 chemicals among 113 hazardous substance requiring management were calculated using the REACH guidance, and a paired t-test was performed to see if there is any statistical difference between two lists (worker-DNELs vs KOELs). The ratios of KOELs over worker-DNELs were also calculated to compare the overall levels of two lists using the geometric means method. Results: The calculated worker-DNELs for 46 chemicals ranged from 0.001 to $329mg/m^3$ (GM= 6.9, GSD = 10.8), and appeared to be a significant difference between the worker-DNELs and the KOELs (p < 0.01). In addition, the ratios of KOELs over worker-DNELs ranged from 0.3 to 394 times (GM = 10.2, GSD = 3.9), indicating that the worker-DNELs were, on average, 27 times lower than the KOELs. Conclusions: Therefore, the study results show that the calculated worker-DNELs can be applied and used as provisional occupational exposure limits in the workplace in order to reduce worker exposures to chemicals and health risks, and manage potential worker exposures based on the precautionary principle through comprehensive chemical risk assessment.