• Korean Chemical Engineering Research
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• 제56권2호
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• pp.212-221
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• 2018

Process safety incidents and loss events can be prevented if we identify and adequately take measures on process safety incident precursors in a timely manner. If we look into and take action against the process safety hazard factors causing the incident in the refinery and petrochemical plant, major process safety incidents can be prevented through eliminating or decreasing hazardous factors. We conducted a survey for the major process safety incident precursor to look specifically into the potential process safety hazardous factors of refineries and petrochemical plants in the Yeosu chemical complex. A self-assessment checklist, which was published by Center for Chemical Process Safety "Recognizing catastrophic incident warning signs in the process industry" on major incidents warning sign, was used for the survey. Through this survey, the major process safety incident leading indicators in the process industry were found by process safety management elements, and each site and/or facility can use these leading indicators for activities for process safety incident prevention. In addition, we proposed action items required to eliminate the root cause of those process safety incident leading indicators.

• Journal of Preventive Medicine and Public Health
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• 제56권4호
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• pp.368-376
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• 2023

Objectives: Recent research indicates a potential association between workplace violence and an increased risk of cardiovascular disease (CVD) in the working-age population. However, the relevant evidence in the United States is sparse. Thus, this study was conducted to explore the possible relationship between workplace violence and CVD among United States workers. Methods: We utilized cross-sectional data from the 2015 National Health Interview Survey, which included a representative sample of 18 380 workers, to investigate the associations between workplace violence and the prevalence of CVD using logistic regression. Workplace violence was determined based on self-reported threats, bullying, or harassment at work over the past 12 months, supplemented with additional information regarding frequency. CVD included all forms of heart disease and stroke. Results: A total of 1334 workers reported experiences of workplace violence, and 1336 workers were diagnosed with CVD. After adjustment for covariates, participants who reported any instance of workplace violence had significantly higher odds of having CVD (odds ratio [OR], 1.76; 95% confidence interval [CI], 1.35 to 2.30) than those who reported no such violence. Furthermore, the highest odds of CVD (OR, 1.80; 95% CI, 1.23 to 2.63) were observed among those frequently exposed to workplace violence. Even occasional exposure to workplace violence was associated with 74% excess odds of CVD. Conclusions: Our study indicates an association between workplace violence and CVD in United States workers, exhibiting a dose-response pattern.

• 치위생과학회지
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• 제17권1호
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• pp.56-64
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• 2017

Systemic health conditions increase with advancing age, and may be linked to poor self-reported oral health. The purpose of this study was to evaluate the association between systemic health conditions and poor self-reported oral health among Korean elderly. The study used a nationally representative sample of Koreans (2012 Korea National Health and Nutrition Examination Survey) aged 65~98 years (n=1,595). Systemic health conditions in this population were assessed by the presence of one or more of the following conditions: obesity, hypertension, diabetes, and hypercholesterolemia. The relative risk of poor self-reported oral health according to the occurrence of systemic health conditions was estimated by multivariate logistic regression after controlling for several potential confounders (i.e., socio-demographic factors, oral health behaviors, health behaviors, and psychological factors). After adjustment for these confounders, the relative risk of having poor self-reported oral health was greater among the elderly with one or more systemic health conditions than in those without a systemic health condition. The odds ratio of having poor self-reported oral health according to the occurrence of systemic health conditions was 1.51 (95% confidence interval, 1.08~2.12). Among the Korean elderly, perception of poor oral health was associated with the presence of one or more systemic health conditions. Future studies are needed to examine the detailed causal relation between systemic health conditions and poor oral health longitudinally.

• 한국문헌정보학회지
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• 제44권1호
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• pp.53-74
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• 2010

본 연구는 대학 교수들이 셀프 아카이빙하는 저장소와 저작물의 종류 및 그러한 결정의 배경이 되는 이유에 대하여 조사하였다. 미국 17개 연구 중심 대학의 교수들을 대상으로 설문지와 전화 면담을 수행하였으며 본 연구는 480명의 설문 응답과 41명의 후속 전화 면담 분석을 바탕으로 하였다. 분석 결과 교수들은 개인 홈페이지나 연구 그룹 홈페이지를 통하여 심사를 거친 논문을 셀프 아카이빙하는 경우가 많았다. 이를 통해 교수들이 학술 자료의 질적 수준 관리 기제로서의 논문 심사를 셀프 아카이빙에서도 중요한 요소로 인식한다는 것을 알 수 있다. 기관 레포지토리에서의 셀프 아카이빙 참여도는 저조한 편이었으나 몇몇 교수들은 다양한 종류의 학술 자료들을 디지털 형태로 보존할 수 있다는 점에서 그 발전 가능성을 언급하였다.

• 한국컴퓨터정보학회논문지
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• 제26권12호
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• pp.265-271
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• 2021

본 연구에서는 다문화청소년의 학업적응 변화양상을 확인하고 이중문화수용태도, 자아존중감이 학업적응 변화에 미치는 영향의 종단변화를 탐색하는데 목적이 있다. 다문화청소년 패널 조사 자료를 분석에 사용하였으며 분석결과, 이중문화수용태도, 학업적응, 자아존중감은 각각의 선형변화모형을 통해 3년간 감소하는 양상을 나타냈다. 다변량잠재성장모형을 통한 이중문화수용태도와 학업적응 간 자아존중감의 종단적 매개효과를 분석해 본 결과, 다문화청소년의 이중문화수용태도와 학교생활적응 간의 관계에서 자아존중감이 매개변수로서 역할을 하고 있는 것으로 나타났다. 이러한 분석결과를 토대로 다문화청소년의 학교생활적응도를 높이기 위해 이중문화수용태도와 자아존중감을 향상시키기 위한 실천적 함의를 제시하였다.

• 벤처창업연구
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• 제15권6호
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• pp.155-166
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• 2020

본 연구는 재창업기업 대표를 대상으로 재창업자의 긍정심리자본 요인인 자기효능감, 희망, 회복탄력성이 흡수역량에 미치는 영향과 재창업자의 흡수역량이 의사결정의 질에 미치는 영향을 고찰하였다. 특히 본 연구는 재창업자에게 심리적 요인들 중 긍정심리자본이 어떠한 영향을 미칠까하는 궁금함에서 출발하였다. 연구대상은 중소벤처기업진흥공단으로부터 재창업 지원자금을 받은 재창업기업 대표를 대상으로 실시하였으며, 조사한 144명의 표본자료를 SPSS 24.0을 활용하여 빈도 분석을 Smart PLS 3.0을 활용하여 구조모형방정식 분석을 실시하였다. 재창업자의 심리적 특성인 긍정심리자본을 자기효능감, 희망, 회복탄력성의 3가지 요인으로 구분하여, 잠재적 흡수역량과 실행적 흡수역량에 미치는 영향을 분석한 결과, 자기효능감은 잠재적 흡수역량에 긍정적인 영향을 미치는 것으로 나타났고, 실행적 흡수역량에는 영향을 미치지 않는 것으로 나타났으며, 희망은 잠재적 흡수역량에 영향을 미치지 않는 것으로 나타났고, 실행적 흡수역량에는 긍정적인 영향을 미치는 것으로 나타났다. 회복탄력성은 잠재적 흡수역량 및 실행적 흡수역량에 긍정적인 영향을 미치는 것으로 나타났다. 그리고 잠재적 흡수역량 및 실행적 흡수역량은 의사결정의 질에 긍정적 영향을 미치는 것으로 나타났다. 이와 같은 연구결과를 바탕으로 실무적 시사점과 이론적 시사점을 제공하고자 한다.

• Asia pacific journal of information systems
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• 제16권2호
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• pp.123-141
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• 2006

Mobile games have emerged as the most innovative entertainment technology, adding new revenue streams, taking advantage of the potential of wireless applications and service offerings. Mobile games, as well as PC games, Video games and online games, offer a unique value for users in providing an exciting digital experience in virtual worlds. The overall trend for mobile games is towards bigger, more colorful, more involving and exciting contents, which might build upon the developing capabilities of mobile phones and networks, in order to bring new styles, concepts and experiences of game play to the users. In this paper, we investigate the factors influencing the usage and acceptance of the mobile games, based on the extended version of the Technology Acceptance Model (TAM). Based on data collected from online survey, we show that perceived usefulness, ease of use are the major determinants for mobile game users to play games. Four factors, including ease of use, self-expressiveness, visibility, and innovativeness are empirically shown to determine the level of perceived usefulness; additionally, innovativeness and facilitating conditions are shown to directly affect ease of use. Based upon the statistical results, some useful guidelines for game development and market penetration strategies are also provided.

• 한국주거학회논문집
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• 제18권4호
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• pp.17-25
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• 2007

The study analyzed the consciousness of mortgage loan of the prospective home-buying households using self-administered questionnaire surveys. The sample of the survey was chosen by convenience sampling method to be 366 prospective home-buying households in Ulsan, with the households head's age being younger than 50. These are the results. First, approximately 80% of the respondents had plans to buy a house through self-support and loan. Second, the consciousness of mortgage loan was relatively low, but the willingness to use it was very high. Third, the need for mortgage loan was relatively high, especially the need for specialists to facilitate the information circulation. Lastly, the awareness and need for mortgage loan were significantly influenced by the family and housing characteristics of households including family life cycle stages, the structure of dwelling, tenure type and monthly household income. It is necessary to provide potential house buyers with appropriate education and information on housing financing, the change of interest rate, and the effects of various financing packages.

• 한국학교보건학회지
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• 제36권3호
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• pp.82-91
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• 2023

Purpose: This study aims to identify gender-based differences in factors related to smartphone overdependence among middle school students. Methods: The subjects of the study were middle school students who participated in the 16th Korea Youth Risk Behavior Survey (2020). Frequency analysis, the Rao-Scott χ² test, and multiple logistic regression were performed using SPSS 27.0. Results: Identified risk factors were grade level, self-reported health, self-reported happiness, loneliness, smoking, drinking, poor sleep quality, physical activity, and generalized anxiety disorder, which were commonly found in all participants. Additionally, stress was found related only in boys, while the residential area and depression showed associations only in girls. In particular, the more severe was the level of generalized anxiety disorder, the higher was the risk ratio of the high-risk group, compared to the potential-risk group. Conclusion: Based on the findings of the study, a customized strategy that considers gender differences should be developed in order to prevent smartphone overdependence in middle school students.

• 농촌계획
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• 제13권2호
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• pp.93-105
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• 2007

Allotment gardens with log house in rural area as a rural growth tool are able to adapt to current market mechanisms by communication and promotion techniques. It is important to know what and how allotment garden's users seek their benefits to market segmentations. The primary purpose of this study was to segment and profile the benefits of allotment garden's potential users so as to provide a better understanding of allotment garden in Korea. A self-administered survey was obtained from 298 allotment gardens users in the study area. Four distinct segments were identified based on the benefits; relaxer(23.7%), educator(21.9%), want-it-all gardener(42.3%), and grower(12.2%), and these were profiled with respect to socio-demographics and civic garden-related features. We suggest that the relaxers are target market of allotment gardens with log house because they have willingly intented to pay a higher rent.