Despite the government operating various preventive programs to ward off accidents and diseases on business sites, diseases rates are not decreasing, unlike accident rates. In many cases, diseases caused by work have a latent period before symptoms appear or progress over a longer term, making it difficult for workers to prove the causal relation between their work and the diseases. Moreover, data related to the business site are mostly owned by the employer. Even if the employee has access to parts of such data, his lack of medical expertise limits his ability to identify the characteristics of the diseases and how it appears. In August, 2017 the Supreme Court did an about-face with its ruling on the case involving diseases caused by exposure to harmful substances in work environments, by easing the burden of proof on the employees. As such, this study focuses on the case to analyze cases involving diseases that have occurred in work environments and present their implications. In doing so, the study seeks to provide a basic set of data that can help secure the employees' labor rights and rights to health by complementing the current law in relation to recognizing industrial incidents caused by rare diseases and making work environments safer for employees.
To investigate the effect of sulfate deposition un forest tree nutrition, 15 forest stands of Pinus thunbergii were selected throughout Yochon industrial complex, in which is influenced by chronic air pollution. Concentrations of sulfate sulfur, nitrogen, phosphorus, potassium, calcium, and magnesium were analysed fur current and 1-year-old needles of Pinus thunbergii tree. The results obtained were as follows ; 1. Significant higher accumulation of sulfate S, computed with that of unpolluted needles, was observed at all sites, ranging front 0.11% to 0.35% in current needles, and from 0.13% to 0.32% in 1-year-old needles. 2. Ranging from 0.60% to 1.42% in current needles, and from 0.58% to 0.88% 1-year-old needles, respectively, nitrogen concentrations were significantly lower at 7 sites for current needles, and at all sites for 1-year-old needles than at unpolluted site. 3. Phosphorus and potassium levels were significantly lower at very few sites, compared with unpolluted site. 4. Calcium concentrations were significantly lower at 8 sites and 9 sites for current and 1-year old needles than at unpolluted site, ranging from 0.123% to 0.352% and from 0.201% to 0.371% in 1-year old needles, respectively. 5. Ranking from 0.077% to 0.152% in current needles, and from 0.056% to 0.105% in 1-year-old needles, magnesium concentrations were lower at only 2 sites for current needles tut at 12 sites for 1-year-old needles. 6. There were significant declines of concentrations of calcium and magnesium in current needles as sulfate accumulation increased. For 1-year-old needles, there were significant negative correlations-hips between sulfate and nitrogen, potassium, calcium, and magnesium concentration. It is concluded that deposition of sulfuric air pollutant deteriorated nutrients status, resulting in tree decline, in Pinus thunbergii forest in Yochon industrial complex.
Journal of The Korean Association For Science Education
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v.30
no.6
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pp.681-692
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2010
The purpose of this study is to analyze the teaching-learning effect of using self-regulated learning strategy on experimental classes for the 'kinetics' unit of 10th grade science textbook. Six classes were chosen and classified into two groups: the first group, the control group, was taught with the regular laboratory activity and the other group, the experimental group, was taught with the teaching-learning method using self-regulated learning program. After the laboratory activity for the unit using self-regulated learning program, the mean values of the scientific inquiry, scientific attitudes, and performance assessment of the experimental group were larger than those of the control group. There were significant differences between the two groups in the post-test. With the results of the post-test for the experimental group, the self-regulated learning program has significant relationships on scientific inquiry, scientific attitudes, and scientific achievements.
Journal of the Korea Academia-Industrial cooperation Society
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v.18
no.4
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pp.58-66
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2017
This study was a descriptive correlational study investigating the mediating effects of resilience in the relationship between depression and rehabilitation motivation in middle-aged stroke patients. There was a total of 185 middle-aged patients aged 40 to 64 years, who were diagnosed with stroke at a university hospital and rehabilitated at three local hospitals located in S city and four hospitals in U city. The data were collected using a self-reported questionnaire between the 1st and 31st of December in 2016. The data were analyzed using t-test, ANOVA, Pearson's correlation coefficient, and step-wise causal method using SPSS/WIN 22.0 statistical program. To test the statistical significance of the mediation effect, PROCESS and bootstrapping were used. The mean age of the subjects were $56.26{\pm}6.37$ years. There were 70.3% male subjects, an average depression level was $21.21{\pm}7.09$, an average resilience was $25.52{\pm}9.63$, and rehabilitation motivation was $47.44{\pm}5.87$. Depression was negatively related to resilience and rehabilitation motivation. However, resilience and rehabilitation motivation have a static correlation. These results confirmed that resilience appears to be a complete mediating effect in the relationship between depression and rehabilitation motivation. Therefore, it is important to develop a resilience enhancement program to improve the motivation of rehabilitation for stroke patients.
Shin, Ye Som;Choi, Bo Youl;Kim, Mi Kyung;Yang, Yoon Jung
Journal of Nutrition and Health
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v.52
no.5
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pp.465-474
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2019
Purpose: This study examined the association between the serum 25-hydroxyvitamin D concentration and the cognitive functions in Korean elderly. Methods: The subjects were 393 adults aged 60 years or older who participated in the Yangpyeong cohort between July 2009 and August 2010. The subjects were classified into deficiency, insufficiency, or adequacy groups according to the serum 25-hydroxyvitamin D concentration diagnostic criteria suggested by the US Institute of Medicine (IOM). The cognitive function was assessed based on the Korean version of the Mini-Mental State Examination (MMSE-KC). The dietary intake was assessed using the quantitative food frequency questionnaire with 106 food items. Results: The proportions of deficiency, insufficiency, or adequacy in serum 25-hydroxyvitamin D were 6.6%, 44.5%, and 48.9%, respectively. The serum 25-hydroxyvitamin D concentration was significantly higher in men than in women and in outdoor workers than in other occupations. The adequacy group had higher MMSE-KC scores than the other two groups, but not to a significant degree. The proportion of cognitive impairment tended to decrease with increasing serum vitamin D concentration to deficiency, insufficiency, and adequacy (p for trend = 0.029). The deficiency group had a 2.28 times higher risk of cognitive impairment than the adequacy group, but the difference was not statistically significant (OR, 2.28; 95% CI, 0.18 ~ 1.07, p for trend = 0.119). Conclusion: The serum vitamin D concentration tended to be associated with the cognitive function in elderly Koreans living in rural areas. To confirm the associations, further longitudinal studies with large samples were required.
Objectives : To identify the relationship between somatization, stress, depression, anxiety, and psychological symptoms risk for nurses working in the intensive care unit. Create clinical evidence of psychosomatic medicine research and complement the meaning of somatization. Methods : Seventy of the mental health checkups conducted by the National Mental Health Center among the nurses using tools including Perceived Stress scale, Fatigue Severity Scale, Patient Health questionnaire-15, Korean Beck Depression Inventory, Korean Beck Anxiety Inventory, and Symptom Checklist-90-Revision. Results : 12.9% of the patients experienced more than moderate somatization. There was no statistical relationship between somatization and psychological stress perception, but feeling of anxiety and decreased self-confidence were related to the level of somatization. The group with severe somatization experienced more depression and anxiety. The group with high physical fatigue also had no statistical relationship with psychological stress perception, but had an effect on the feeling of tension, stress, or decreased control. Physical fatigue level was increased by experience of depression, not by anxiety. For psychological symptoms the higher the level of somatization, the higher the obsession and hostility was explored. In the linear regression model, stress, depression, and anxiety accounted for 39.3% of somatization and 16.1% of physical fatigue symptoms. Conclusions : We can estimate the decrease in stress cognitive symptoms, accompanying depression and anxiety, compulsion and hostility as characteristics of somatization. The causal relationship between somatization and psychological symptoms cannot be confirmed in this study, but the interrelationships are observed, can be referred to mediation strategies.
The purpose of this study is to understand the correlation between Master Jin Bodhi and practicing Medicine Buddha, and to examine the concept and value of the method of asceticism related to practicing Medicine Buddha. Accordingly, as a result of collecting and analyzing a wide range of literature data on Master Jin Bodhi, Master Jin Bodhi was able to capture and present various historical sources of using various method of asceticism based on practicing Medicine Buddha. In addition, the concept and value of the method of asceticism about The Method of Great Illuminated Asceticism, Throwing Five Parts of the Body, and Energy Bagua were considered and presented as representative practices among the various practices taught to modern people in physical and mental weaknesses across the world. This study is of academic significance in that it clearly distinguishes the concepts and unique values of each of the The Method of Great Illuminated Asceticism, Throwing Five Parts of the Body, and Energy Bagua based on the results of the correlation between Master Jin Bodhi and practicing Medicine Buddha. Nevertheless, this study did not fully reveal the historical causality of the process of expanding Master Jin Bodhi's method of asceticism related to practicing Medicine Buddha, and has limitations in not considering the concept and value of the method of asceticism other than the The Method of Great Illuminated Asceticism, Throwing Five Parts of the Body, and Energy Bagua. Specific methods for further research were suggested.
This study examines the experiences of 17 ex-offenders' wives who received housing support by the Korea Rehabilitation Agency using Strauss and Corbin's grounded theory. In open coding, 143 concepts, 43 subcategories, and 16 categories emerged from the data. In axial coding, the causal condition were 'ambivalence of wives who encounter the husbands' release from prison', 'anxiety about the husbands' release from prison and recidivism', and 'trials and tribulations of everyday life after husbands' release from prison'. Central phenomenon was 'precarious livelihood by concealment of imprisonment'. Strategies were 'compromise with reality' and 'support husbands to reentry to the society'. Consequence was 'thanks to life via adversity' and 'the road less traveled.' In process analysis, main theme was 'process towards family resiliency after get over the stigma and family conflicts', and five phases were derived from the data and in selective coding. Based upon the research outcomes, psychological experiences of ex-offenders' wives and the needs for ex-offenders' families resiliency was discussed.
The purpose of this study was to provide hotel bakery organizations with useful information for human resources management based on a substantial clarification of the relationship and correlation of hotel bakery employees' self-leadership, self-efficacy, and organizational commitment. Resources were gathered from June 20, 2015 to July 10, 2015 by distributing a total of 500 surveys, from which 377 were collected. Excluding 23 survey forms not suitable for the analysis, 354 survyes were processed through factor analysis, reliability test, and multivariant structural analysis using SPSS 18.0 and AMOS 18.0 to verify the hypotheses. The findings of the analysis can be summarized as follows: first, behavior-centered strategies, natural compensation, and constructive thinking strategies had a significantly positive impact on self-efficacy. Second, in the analysis of impact of self-efficacy on organizational commitment, it was significant for emotional immersion, but did not have a significantly positive impact on normative immersion. Third, in the relationship between self-leadership and organizational commitment, behavior-centered strategies and natural compensation did not have a significant impact on emotional immersion. However, constructive thinking strategies had a significant impact. The following implications can be derived based on the above findings: this study implies the possibility of future studies on the variables of self-efficacy as it set behavior-centered strategies, natural compensation, and constructive thinking strategies as the preliminary factors under hotel bakery employees' self-leadership; and it analyzed the causality of each factor with emotional immersion and normative immersion as the subordinate factors of self-efficacy and organizational commitment to show that self-leadership and self-efficacy of hotel bakery employees based on emotional immersion and normative immersion can stably improve the organization of hotel bakeries.
Korean Journal of Agricultural and Forest Meteorology
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v.15
no.4
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pp.234-244
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2013
This study was conducted to determine the factors affecting to seed characteristics and seedling growth of Zelkova serrata. The seeds were collected from sixteen populations of Z. serrata and the seed characteristics (i.e., seed length, width, weight and full seed rate) were measured. We also measured the 1-year-old seedling growth of each population at nursery. All seed characteristics showed significant differences in population level. Seed length and seed width were positively correlated with latitude, longitude, altitude and distance from coast line of sampling site. Seed length and seed width also negatively correlated with annual mean temperature, mean temperature of growing season (Mar.~Oct.). The ratio of seed length/seed width showed inverse trend in case of seed length and seed width. Seed weight/1,000 grains had no correlation with geographic factors but showed negative correlation with annual mean dryness index. Seed weight/L showed negative correlation with latitude and longitude and positive correlation with mean temperature of growing season of sampling site. Full seed rate showed negative correlation with latitude, longitude and annual mean dryness index of sampling site. There were significant differences among populations, among family within population and among individuals within family in seedling growth. Height and diameter of root collar of seedling showed negative correlation with longitude and mean humidity of growing season of sampling site. Height growth of seedlings was not correlated with any seed characteristics but, diameter at root collar showed low negative correlation with seed weight/1,000 grains and seed weight/L. We discussed the implications of the results in view of tree improvement of Z. serrata.
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