• Journal of Construction Engineering and Project Management
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• v.3 no.3
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• pp.42-48
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• 2013

Construction industry is considered as the most hazardous industry due to its unique nature. Safety and quality management are essential to control hazards and improve success in project implementation. This paper focuses on evaluating the crucial factors influencing safety and quality management in construction projects. In order to achieve this, the qualitative and quantitative approaches were used for data collection. The findings of this study reveal the crucial safety factors as management commitment, safety awareness of top management practices/ procedures/ reviews, and errors in judgement or carelessness. Project supervision, employee involvement/ altitude, and expertise knowledge/ training were considered as the crucial quality factors influencing safety and quality management. The study shows that safety and quality issues cannot be overlooked therefore proper implementation is paramount to achieve project success.

• The Journal of Korean Medicine
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• v.32 no.4
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• pp.128-138
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• 2011

Objective: This study aimed at providing preliminary data useful in reducing participant dropout and improving the quality of clinical trials, by analyzing the factors related to dropout. Methods: The data came from 15 acupuncture and/or moxibustion clinical trials (n=638; August 2005 to December 2009). Logistic regression analysis was used to reveal factors influencing participant dropout. Results: Gender, age, treatment method (intervention), treatment frequency, availability of follow-up, and presence of compensation treatment for the control group were factors influencing participant dropout. Conclusion: Subsequent studies of large-scale acupuncture and moxibustion clinical trials should address dropout factors that consider the character of each clinical trial, or general characters like participants' gender, age, occupation, and diverse diseases.

• Journal of Korean Academy of Nursing
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• v.42 no.1
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• pp.136-147
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• 2012

Purpose: This study was conducted to compare the degree of depression between men and women and to identify factors influencing their depression. Methods: Participants in this cross-sectional descriptive study were 263 persons over 65 years old (men: 103, women: 160). Data were collected through face to face interviews using questionnaires and were done in two urban areas in 2010. Research instruments utilized in this study were SGDS, MMSE-K, SRH, FILE, sleep pattern scale, family and friend support scale, and social support scale. Multivariate regression analysis was performed to identify factors influencing depression in elders. Results: The proportions of participants with depression were significantly different between men and women (52.4% vs. 67.5%). Regression model for depression in elderly men significantly accounted for 54%; disease stress (32%), economic stress (10%), perceived health status (4%), and family support, educational level, age, and hypertension. Regression model for depression in elderly women significantly accounted for 47%; disease stress (25%), perceived social loneliness (8%), friend support (5%), family stress (4%), and sleep satisfaction, and family support. Conclusion: Results demonstrate that depression is an important health problem for elders, and show gender differences for factors influencing depression. These results could be used in the developing depression prevention programs.

• Journal of Korean Academy of Nursing
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• v.40 no.5
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• pp.747-755
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• 2010

Purpose: This study was conducted to investigate the degree of dry mouth and oral health-related quality of life and to identify factors contributing to oral health-related quality of life for community-dwelling elders. Methods: A descriptive correlational study design was used. Participants were 156 older adults from two senior welfare centers. Data were collected on February 21, 22 and 29, 30, 2009 using structured questionnaires. Enter type multiple regression analysis was used to identify factors influencing oral health-related quality of life according to general and oral health characteristics. Results: There were significant differences in oral health-related quality of life according to living arrangement, insurance, smoking, number of natural teeth, and denture type. The oral health-related quality of life had significant correlations with the number of chronic disease, number of medications, and dry mouth. Factors influencing oral health-related quality of life for community-dwelling older adults were dry mouth, number of chronic disease, and medical aid, which explained about 47.9% of total variance. Conclusion: These results indicate that in order to promote oral health-related quality of life for older adults, prevention or management of chronic diseases as well as oral health and dry mouth are needed for this population, and especially economically poor elders.

• Journal of Korean Society of Rural Planning
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• v.24 no.3
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• pp.55-62
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• 2018

This study analyze factors influencing business performance by types of agricultural corporation for improving performance. The number of agricultural corporations have been increasing but their profitability has been decreasing. In this situation, it is important to analyze factors influencing business performance for improving their profitability. We estimate a model including financial indexes and corporation's characters using ordinary least square. We use agricultural corporations survey data for 10years(2005~2014) of Statistics Korea. This study analyze bookkeeping recorded agricultural corporations for the same period. As a result, we find factors to influence Return on Assets(ROA). Additionally, we calculate optimized current ratio and debt ratio for ROA maximization. Operation period and the number of full-time workers also have a positive effect on ROA. Agricultural production, processing and distribution variables by business types have a positive effect on ROA, but some of their interaction terms have a negative effect on ROA. We expect that this result will help for improving corporation's business performance.

• Korean Journal of Occupational Health Nursing
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• v.30 no.4
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• pp.196-205
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• 2021

Purpose: This study aimed to identify the factors influencing health-promoting behaviors (HPB) among fish market merchants. Methods: A cross-sectional descriptive design including 117 merchants working at a fish market in city C. Data were collected using self-reported questionnaires during April 19-30, 2021, and were analyzed using descriptive statistics, t-test, ANOVA, Scheffé's test, Pearson correlation coefficients, and stepwise multiple regression analysis with SPSS/WIN 23.0. Results: The scores were 2.68±0.49 for HPB among fish market merchants. Factors significantly influencing HPB among fish market merchants were perceived disabilities (β=-.42, p<.001), self-efficacy (β=.26, p<.001), perceived benefits (β=.16, p=.012), exercise (β=.14, p=.023) and daily working hours (β=-.13, p=.030). These factors accounted for 60.3% of the HPB of fish market merchants. Conclusion: These findings suggest that efforts are needed to reduce perceived disabilities, reduce working hours per day, and develop programs to enhance self-efficacy, perceived benefits, and exercise in order promote HPB among fish market merchants.

• Proceedings of KOSOMES biannual meeting
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• 2018.06a
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• pp.51-51
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• 2018

• Proceedings of the KSR Conference
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• 2006.11b
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• pp.1501-1507
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• 2006

The accidents are often resulted from multiple causes with hardware failure and human errors. So to ensure the safety of rail operation, human error should be prevented effectively. The purpose of this paper is to present an analysis system on factors of influencing human error in korean rail industry especially for engine driver and train despatcher. To achieve it, ESFs(error shaping factors) classification system was derived from several PSFs(performance shaping factors) classification system. Based on them, two kinds of questionnaires for engine driver and train despatcher each were developed. Then Analytic Hierarchy Process (AHP) methodology was used to evaluate what factors were critical to human error.

• Korean Journal of Environmental Agriculture
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• v.39 no.3
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• pp.228-236
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• 2020

BACKGROUND: The closed chamber method is the most commonly used for measuring greenhouse gas emissions from rice fields. This method has the advantages of being simple, easily available and economical. However, a measurement result using the chamber method is an estimated value and is complete when the uncertainty is estimated. The methane emissions from a rice paddy account for the largest portion of the greenhouse gas emissions in the agriculture sectors. Although assessment of uncertainty components affecting methane emission from a rice paddy is necessary to take account of dispersion characteristics, research on these uncertainty components is very rare to date. The goal of this study was to elucidate influencing factors on measurement uncertainty of methane concentrations measured by a closed automated chamber system from a rice paddy. METHODS AND RESULTS: The methane sampling system is located in the rice paddy in Gyeonggi-do Agricultural Research and Extension Services (37°13'15"N, 127°02'22"E). The primary measurement uncertainty components influencing methane concentrations (influencing factors) investigated in this research were repeatability, reproducibility and calibration in the aspects of methane sampling and analytical instrumentation. The magnitudes of the relative standard uncertainty of each influencing factor were quantified and compared. CONCLUSION: Results of this study showed what influencing factors were more important in determination of methane concentrations measured using the chamber system and analytical instrumentation located in the monitoring site. Quantifying the measurement uncertainty of the methane concentrations in this study would contribute to improving measurement quality of methane fluxes.

• Journal of Korean society of Dental Hygiene
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• v.15 no.4
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• pp.565-574
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• 2015

Objectives: The purpose of the study is to investigate the oral health of the elderly people receiving nursing care and home care services in Chungnam. Methods: The subjects were 350 elderly people receiving 21 nursing care and home care services in Chungnam. The direct interview with the elderly people and oral examination was carried out from July, 2012 to December, 2013 after explanation fo the purpose of the study. The subjects consisted of 178 elderly people receiving nursing care services and 172 elderly people receiving home care services. Except incomplete answers, 315 data were analyzed. The questionnaire consisted of general characteristics of the subjects, characteristics by facility, oral condition, oral care behavior, correlation by factors on oral health, influencing factor on dental caries, influencing factor on periodontal disease, and influencing factor on elasticity of gingival muscle. Data were analyzed by frequency analysis, chi-square test, and multiple regression analysis using SPSS 21.0 program. Results: Multivariate analysis of influencing factors on oral health revealed that the elderly people with low education level tended to have higher incidence rate of dental caries. The influencing factors on oral health were the elasticity of gingival muscle, periodontal disease, educational level, and economic level. (p<0.05). The explanation power was 26.2%. Conclusions: Oral Health Promotion should be obligatorily established as one of the medical system and medical fee system to promote oral health condition for the aged.