• 한국산업보건학회지
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• 제1권1호
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• pp.82-88
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• 1991

Determination of Cu, Fe, Ni, Pb, and Zn concentrations in coal and respirable coal dust were performed by atomic absorption spectrophotometry. The coal samples of 18 coal mines in Gangneung area were collected and 25 coal mines in Taebaek area. Crushed coal samples were divided into three mesh sizes. The results were as follows : 1. Metal concentrations of coals in Gangneung area by sieve sizes( -100/+200 mesh, -200/+325 mesh, -325 mesh) were as follows: Cu ; 20, 18, 19, Fe ; 1,830, 1,765, 1,107, Pb ; 6, 8, 14, Ni ; 17, 17, 14, Zn ; 4, 2, $4{\mu}g/g$, respectively. Metal concentrations in coals in Taebaek area by sieve sizes(-100/+200 mesh, -200/+325 mesh, -325 mesh) were as follows: Cu ; 30, 32, 26, Fe ; 1,741, 1,822, 1,773, Pb ; 8, 9, 7, Ni ; 13, 13, 13, Zn ; 8, 5, $4{\mu}g/g$, respectively. There were not significant differences of Cu, Fe, Ni, Pb, and Zn concentrations of coals statistically in Gangneung and Taebaek area by sieve size. 2. Metal concentrations of coals in Gangneung and Taeback area were as follows : Cu ; 19, 30, Fe ; 1,514, 1,778, Pb ; 9, 8, Ni ; 16, 13, Zn ; 3, $6{\mu}g/g$, respectively. Differences of copper and zinc concentrations of coal samples were significant between Gangneung and Taebaek area, but those of iron, nickel and lead concentrations were not significant. 3. Copper, iron, lead, nickel and zinc concentrations of coals and respirable coal dust were as follows : Cu ; 30, 6, Fe ; 1,779, 5,075, Pb ; 8, 7,814, Ni ; 13, 5,681, Zn ; 5, $134{\mu}g/g$, respectively. Differences of nickel, lead and zinc concentrations were significant between coals and respirable coal dust but those of copper and iron concentrations were not significant.

• 한국산업보건학회지
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• 제1권2호
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• pp.117-127
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• 1991

The exposure level of chromium and nickel for chrome and nickel plating workers were evaluated. Chromium and nickel concentrations in serum from 82 exposed workers and 66 controls, who were not exposed occupationally to metals, were analyzed by flameless atomic absorption spectrophotometry. The results were as follows : 1. The recovery percent of chromium and nickel concentrations in personal air samples were 95-108.2%, 88.0-107.7%, precisions (C.V., %) were 2.7-3.1%, 2.1-4.4%. respectively. 2. The recovery percent of chromium and nickel concentrations in serum were 93.6-106.4%, 91.3-107.9% and precisions (C.V. %) were 1.1-7.6%, 2.4-5.4% respectively. 3. The exposure level of chromium and nickel concentrations in the place of preparation process were $2.0{\pm}2.00{\mu}g/m^3$, chromplating were $35.7{\pm}53.07{\mu}g/m^3$, $2.8{\pm}3.42{\mu}g/m^3$, nickelplating were $4.6.0{\pm}5.8{\mu}g/m^3$, $18.62{\pm}4.41{\mu}g/m^3$, and covering were $2.9{\pm}2.02{\mu}g/m^3$, $1.1{\pm}0.47{\mu}g/m^3$ respectively. There were significant difference of concentrations for chromium and nickel in workplaces by groups statistically. 4. Chromium concentrations in serum of exposed group and control were $0.68{\pm}0.399{\mu}g/l$, $1.41{\pm}0.748{\mu}g/l$, respectively. There were significant difference of concentrations for chromium and nickel in serum by groups statistically. 5. Chromium and nickel concentrations in serum of exposed group were not significant by workplaces.

• 한국유통학회지:유통연구
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• 제2권2호
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• pp.153-172
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• 1997

The distribution sector is affected by a wide range of regulations. Many of these are related to health and safety, others are related to urban planning and environmental issues, whereas some mainly have an economic basis. But, regulations many be unduly restrictive, in which case they can drive up costs and ultimately prices, or they may, in some cases, reduce consumer choice. Unduly restrictive regulations could also increase costs indirectly, by reducing competition and thus lead to lower productivity growth. In the past few years, distribution sector has gone through drastic changes due to deregulation and market opening. Implementation of regulatory reforms served as an opportunity to change laws and systems which had been an obstacle to development of distribution sector. Market opening of distribution sector became a turning point to promote competition among domestic and foreign firms. However, for small and medium scale of the typical retail enterprises which were in no position to compete in terms of prices, additional facilities, and services, faced a threat of diminished trading area, and even of their existence. Because, large firms may have greater market power than small firms, as they can more easily extract favorable terms when procuring goods, and may also be able to deter entry by advertising outlays or access to the best sites. In addition, larger chain stores armied with sufficient capital dominated trading area and reduced customer's welfare by abusing their monopoly power when competing with other shops, and are often cited as an example of adverse effects of local monopoly. In order to minimize such adverse effects and to foster competition, regulatory reforms in distribution sector should set its goal to promote sound and stable distribution activities through market principle and restoring competition principle, and ultimately to boost customers welfare. Therefore, deregulation in distribution sector should be implemented in a way to promote customers welfare, eliminate entry barriers, and expand competition principle such as productivity and efficiency competition. However, it should be also recognized that deregulation of system alone is not enough to develop the distribution sector. To compete in a increasingly concentrated industry, small enterprises increasingly engage in co-operative arrangements, such as buying groups, strategic alliances or franchise agreements.

• 한국사회복지학
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• 제58권2호
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• pp.197-222
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• 2006

본 연구는 노인의 범주를 60세 혹은 65세 이상으로 구분할 때 동질적이라고 보기 힘든 전기노인과 후기노인으로 구분하여 노인의 신체적, 심리적, 사회적, 경제적, 환경적인 요인들과 삶의 질의 차이 및 하위영역이 삶의 질에 미치는 영향력을 각각 조사하였으며, 전 후기여성노인의 삶의 질에 영향을 주는 요인들의 차이를 비교하였다. 연구대상은 대구, 경북지역의 노인 310명이며 전기, 우기노인들의 특성을 비교하기 위하여 t-test와 $X^2$검증을 사용하였다. 또한 각 변인들의 삶의 질에 미치는 영향을 조사하기 위하여는 위계적 다중회귀분석을 사용하였다. 연구결과에 의하면 전기, 후기노인 모두 배우자, 건강인지, 자긍심, 사회적 지지는 유의미하게 삶의 질에 긍정적인 영향을 주었으며 전기노인의 경우 역할수행은 삶의 질에 영향을 미치지 않았고 경제적 어려움은 삶의 질에 부정적인 영향을 주었다. 또한 사회참여는 긍정적인 영향을 주었다. 반면에 후기노인의 경우 역할수행은 삶의 질에 긍정적인 영향을, 사회참여는 삶의 질에 부정적인 영향을 미쳐 전기와 후기노인의 삶의 질 영향요인에 차이점을 나타내고 있다.

• 한국사회복지학
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• 제47권
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• pp.272-309
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• 2001

It is a recent trend to emphasize community services for the rehabilitation of the mentally ill. However, it is also necessary to provide social work services for those living in the institutions, who is the most underprivileged in our society. To deal with interpersonal skill deficits which is one of the main characteristics of the mentally ill, social skills programs are being utilized, usually in the communities, but not in the institutions. Therefore, the objective of this study is to develop and evaluate institution-relevant program for the improvement of assertiveness, which is the basic ability among the interpersonal skills, and self-esteem, which is the emotional basis of assertiveness. Because there has been little literature on such a program, a preliminary program had been implemented in order to include the peculiarities of the life in the institutions on the main program. The evaluation of the program effect was done by pretest-post test control group design, and its results are as follows. Firstly, in regard to program effectiveness, the pre and post test showed that self-esteem improved in a statistically meaningful way, but that assertiveness did not so. However, the staff verified the improvement of the group members' assertiveness to some degree in their actual lives. Secondly, in regard to the group process, the group interaction improved in a statistically meaningful way between 2nd and 5th session, and the improvement maintained till the program termination. Also the group members evaluated the program as helpful in their everyday lives. Therefore it can be said that the result of this program is encouraging. In light of this, several suggestions were made: utilizing more dynamic techniques in the program; developing the advanced level of the program; making an effort to change environmental structures as well as individuals; applying this kind of program to another living facilities such as those for the homeless or handicapped.

• 한국산업보건학회지
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• 제33권3호
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• pp.291-297
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• 2023

Objectives: An epidemiological investigation was requested for a worker who developed COPD and IPF after long-term molding and firing at a domestic tile manufacturing site. We would like to share the results of the exposure assessment and the estimation of past work. Methods: The content of crystalline silica in four raw materials was analyzed, and the respirable fraction of crystalline silica and dust generated in the air from molding and firing workers and other processes were measured. The measurement and analysis method referred to the NIOSH method. Results: The crystalline silica content of the raw material was 24~47%. The concentration of crystalline silica in the molding and firing process workers and the surrounding area was at the level of the exposure standards set by the Ministry of Employment and Labor and ACGIH, and the respirable and total dust exposure levels were generally low. The crystalline silica concentration of the area samples measured to estimate past work was about twice as high as the exposure standard of the Ministry of Employment and Labor (0.05 mg/m3), and the exposure levels of respirable dust were also quite high at 0.903 and 1.332 mg/m3. Conclusions: It was confirmed that tile molding and firing workers are currently exposed to a fairly high level of crystalline silica, and a high level is also confirmed in area samples to estimate past work. In the past, it is judged that the level of exposure would have been much higher due to differences in production volume, working method, presence/absence of local ventilation facilities, and process layout. When working in such a working environment for a long time, respiratory diseases such as lung cancer, COPD, and IPF can occur.

• 한국식생활문화학회지
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• 제25권6호
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• pp.708-718
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• 2010

This study was conducted to examine the effects of a healthy dietary life and purchase of environmental-friendly food materials according to a mother's lifestyles of health and sustainability (LOHAS) attitudes. The subjects consisted of 295 mothers. The findings are summarized as follows. The mother's LOHAS attitude index averaged 3.39 points out of 5 points. High LOHAS attitude items were "I participate actively in separating the trash collection" (4.16 points), and "I recycle dresses that I do not wear by taking them to the recycling center" (4.08 points). In contrast, LOHAS attitude items for "I do community service activity on the weekend" (2.57 points), and "I try to serve in the local community" (2.63 points) scored very low. A high LOHAS behavior index occurred for mothers who were "resource saving", whereas "social welfare" scored low. Mother's intention to purchase environmental-friendly food materials averaged 3.61 points. Mother's health dietary life attitude score averaged 3.52 points. When age, monthly income, and the environmental-friendly food materials purchase ratio of the mother was high, the health dietary life performance was high. The LOHAS attitude index of mothers had an impact on the purchase intention of environmental-friendly food materials in resource saving and environmental-friendly oriented propensity groups. The LOHAS attitude index of mothers impacted healthy dietary life in environmental-friendly, family and health oriented propensity groups.

• 아동학회지
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• 제37권2호
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• pp.143-155
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• 2016

Objective: The purpose of the study was to investigate the effects of psychological well-being on married immigrant women's parenting efficacy. Methods: The participants consisted of 145 married immigrant mothers who were members of multi-cultural family support centers in Andong, Young-ju, Uiseung, and Munkyung cities in Gyeongsangbuk-do province. Results: The main results are as follows. First, the levels of language competence and education were significantly related to psychological well-being, suggesting that the level of language competence as well as the level of education could be main factors for psychological well-being. Further, numbers of children and monthly household income were significantly related to parenting efficacy. Second, psychological well-being was correlated with parenting efficacy of married immigrant women, demonstrating that psychological well-being was the most effective variable for parenting efficacy. Third, self-acceptance, environmental mastery, and personal growth in the psychological well-being significantly predicted parenting efficacy. Conclusion: These findings suggested that we should reconsider the importance of psychological well-being in supporting programs for parenting.

• Human Ecology Research
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• 제55권3호
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• pp.249-261
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• 2017

This study grasps the structural relationships between temperament, social support, and school adjustment by adolescents as well as investigates the mediating effect of positive psychological capital from relationships between temperament, social support, and school adjustment. Participants in this study consisted of 763 students in the second grade of five middle schools. Productive correlation analysis were conducted on data collected for this study using PASW statistics ver. 18.0 program; in addition, structural equation modeling analysis was conducted using AMOS ver. 18.0 program. The main findings are as follows. Paths appeared in different ways according to the investigation of mediating effect of positive psychological capital under the impact of temperament and social support on school adjustment of adolescents. Investigation showed that harm avoidance temperament had a statistically significant indirect effect on school adjustment with a medium of positive psychological capital. Novelty seeking temperament and persistence temperament had a direct impact on the school adjustment of adolescents; however, it appeared to also indicate an indirect impact through a medium of positive psychological capital. Social support seemed to indicate a direct impact on school adjustment of adolescents as well as an indirect impact through a medium of positive psychological capital. This study provides basic data to help in the school adjustment of adolescents using personal, environmental, and psychological variables that proves the importance of positive psychological capital in adolescence.

• 동아시아식생활학회지
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• 제21권4호
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• pp.587-599
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• 2011

The purpose of this study was to examine self-perception of body image and dieting behaviors by gender among high school students. The data were collected by a self-administered questionnaire during April, 2010, and analyzed by SPSS Windows V.18.0. The results were as follows. First, many respondents showed a desire to be underweight and regarded themselves as overweight, even though they had a normal BMI. Second, female respondents showed a higher level of concern about diet than male respondents. Third, male respondents received information about diet mostly from their family or friends, whereas female respondents received information from blogs, mini-homepages, or Kin-search on the Internet. Finally, female respondents showed a higher level of practice for fasting therapy than male respondents, whereas male respondents showed a higher level of practice for food therapy, drug therapy, oriental medicine therapy, and steam bath therapy. Therefore, high school should educate students to get right recognition and knowledge of diet.