• Safety and Health at Work
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• 제2권3호
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• pp.273-281
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• 2011

Objectives: Studies examining healthcare workers' exposure to antineoplastic drugs have focused on the drug preparation or drug administration areas. However, such an approach has probably underestimated the overall exposure risk as the drugs need to be delivered to the facility, transported internally and then disposed. The objective of this study is to determine whether drug contamination occurs throughout a facility and, simultaneously, to identify those job categories that are potentially exposed. Methods: This was a multi-site study based in Vancouver, British Columbia. Interviews were conducted to determine the departments where the drugs travel. Subsequent site observations were performed to ascertain those surfaces which frequently came into contact with antineoplastic drugs and to determine the job categories which are likely to contact these surfaces. Wipe samples were collected to quantify surface contamination. Results: Surface contamination was found in all six stages of the hospital medication system. Job categories consistently found to be at risk of exposure were nurses, pharmacists, pharmacy technicians, and pharmacy receivers. Up to 11 job categories per site may be at risk of exposure at some point during the hospital medication system. Conclusion: We found drug contamination on select surfaces at every stage of the medication system, which indicates the existence of an exposure potential throughout the facility. Our results suggest that a broader range of workers are potentially exposed than has been previously examined. These results will allow us to develop a more inclusive exposure assessment encompassing all healthcare workers that are at risk throughout the hospital medication system.

• 간호행정학회지
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• 제15권1호
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• pp.81-90
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• 2009

Purpose: The purpose of this study was to identify nurses' perceptions on the older adult's dignity, and identify the risk factors that threaten older adult dignity and nurses' experiences of ethically difficult care in nursing homes. Method: Qualitative content analysis was done using an analysis scheme developed by the investigators. The data were collected from 51 nurses in 10 different nursing homes, who have agreed this study. Using a self-completion questionnaire was developed by the authors. The questionnaire which consisted of 3 items about dignity definitions, risk factors, and experiences on ethical dilemma. Results: The scheme consisted of 14 categories and 33 subcategories of the 261 significant statements. The categories of the dignity perception analyzed were respect, social right and equality. The categories of risk factors analyzed were loss of control, abuse, physical restraint, invasion of privacy, decision limitation and staff qualification. The categories of dignity experiences were abuse, physical restraint, invasion of privacy, staff qualification and decision limitation. Conclusions: This study may suggests interpretation for compromised older adult's dignity and provides data to use in the development of the useful guidelines and educational programs for the nurses in nursing homes.

• Imaging Science in Dentistry
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• 제52권1호
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• pp.67-74
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• 2022

Purpose: To focus on the effects of the presence of mesiodens on adjacent teeth and to investigate the timing of its safe removal. Materials and Methods: Cone-beam computed tomography examinations, obtained at Okayama University Hospital over a three-year period, were inspected. Data were recorded including the number of mesiodens; associated abnormalities; and the relationship with neighboring structures. Depending on multiple factors, the risk of developing complications due to early extraction of a mesiodens was divided into three categories: high, medium, and low risk. Results: A total of 5,958 cone-beam computed tomography exams were obtained, 460 patients aged 3-85 years were diagnosed with a total of 568 mesiodens, 382 (67.3%) of which were discovered in young patients (age <10 years), and 333 (87.2%) of these were associated with abnormalities. Regarding the risk categories, 11 (1.9%) were considered to be in the high-risk, five (0.9%) in the medium-risk and 552 (97.2%) in the low-risk categories. Moreover, eight out of 11 high-risk mesiodens were extracted and no post-operative complications have been seen. Conclusion: As the results showed that no postoperative complications were seen in all the extracted cases of high-risk mesiodens, this indicates the possibility of safe extraction at an early age which could reduce related future complications.

• 대한가정학회지
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• 제40권6호
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• pp.69-83
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• 2002

This study examined the effects of demographic variables on buying behavior, and investigated buyers'perceived value and risk perception of the internet shopping mall. The sample was collected by a department store in Daegu, and it included 1,732 individuals using the Cyber Mall. Research methods used in this study were simple statistics, t-test and ANOVA. The buyers perceived values through the internet shopping mall were classified into five categories-price, time, convenience, intrinsic attributes, reliability and the risk perception also was classified such as the overall purchasing process, quality of products, exposure of the personal information, delivery system, refund and exchange. The major findings of this study were 1) most important categories affecting their buying behavior were the value of convenience and following values in order were time, price, reliability, intrinsic attributes. 2) the risk perception were overall purchasing behavior, quality of products, exposure of personal information, delivery, and refund & exchange in order. 3) age of buyers, buying experience on the internet shopping mall, and gender were the important factors affecting the buyers'perceived value and risk. 4) the study also, showed that according to the variety of products, buyers perceived the value and risk differently, for example, the price was the most important perceived value in case of food product. The implication of the study is to strategically suggest how to enhance the buyers'perceived value and diminish perceived risk of different products.

• 한국환경보건학회지
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• 제42권6호
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• pp.419-429
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• 2016

Objectives: According to the new Chemical Control Act from the Korean Ministry of Environment (2014-259), workers handling hazardous chemicals should wear personal protective equipment (PPE). However the act simply states in basic phrases that every worker handling one or more of the 69 listed chemicals should wear PPE and does not consider the unique hazard characteristics of chemicals and work types. The main purpose of this study is to provide basic data to revise the act to suit particular work processes and situations. Methods: The hazard rank of the substances was classified based on hazardous characteristics such as LC50 and vapor pressure using matrix analysis. The workplace exposure risk of the substances was also determined through a matrix analysis based on the previously determined hazard ranks and the demands of manual handling together with the likelihood of accident frequency of the operation combined with the exposure of workers during spill accidents. Results: To meet the demands for developing subsequent guidelines for the risk-based application of PPE in hazardous workplaces, this study sorted the 69 listed chemicals into five hazardous categories based on their LC50 and vapor pressures, and also assigned exposure categories according to exposure vulnerability for various types of work which are frequently performed throughout the life cycle of the chemicals. Conclusion: In the next study, an exposure risk matrix will be produced using the hazard rank of chemicals and workplace exposure risk, and then PPE will be selected to suit the categories of the exposure risk matrix.

• Journal of Preventive Medicine and Public Health
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• 제55권5호
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• pp.475-484
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• 2022

Objectives: This study aimed to determine the association between metabolic syndrome (MetS) and the incidence of colorectal cancer (CRC) in Korean women with obesity. Methods: Cancer-free women (n=6 142 486) aged 40-79 years, who underwent National Health Insurance Service health examinations in 2009 and 2010 were included. The incidence of CRC was followed until 2018. The hazard ratio (HR) of MetS for the incidence of colon and rectal cancer was analyzed according to body mass index (BMI) categories, adjusting for confounders such as women's reproductive factors. In addition, the heterogeneity of associations across BMI categories was assessed. Results: Women with MetS were at increased risk of colon and rectal cancer compared to women without MetS (HR, 1.20; 95% confidence interval [CI], 1.16 to 1.23 and HR,1.15; 95% CI, 1.11 to 1.20), respectively. The HR of MetS for colon cancer across BMI categories was 1.12 (95% CI, 1.06 to 1.19), 1.14 (95% CI, 1.08 to 1.20), and 1.16 (95% CI, 1.12 to 1.21) in women with BMIs <23.0 kg/m², 23.0-24.9 kg/m², and ≥25.0 kg/m², respectively. The HR of MetS for rectal cancer across corresponding BMI categories was 1.16 (95% CI, 1.06 to 1.26), 1.14 (95% CI, 1.05 to 1.23), and 1.13 (95% CI, 1.06 to 1.20). The heterogeneity of associations across BMI categories was not significant in either colon or rectal cancer (p=0.587 for colon cancer and p=0.927 for rectal cancer). Conclusions: Women with MetS were at increased risk of colon and rectal cancer. Clinical and public health strategies should be considered for primary CRC prevention with an emphasis on improving women's metabolic health across all BMI groups.

• 대한안전경영과학회지
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• 제21권4호
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• pp.7-15
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• 2019

This paper proposes the FMEA-based model to avoid backdoor transactions when purchasers select suppliers for products and services. In the model, backdoor transactions consist of two categories: backdoor selling and maverick buying. Both of which influence negative effects on cost savings due to not only uncompetitive advantage but also unusable purchasing leverage by unethical and misbehavior of purchase requestors. For the risk evaluation based on FMEA, three and five risk types of backdoor selling and maverick buying are identified respectively. Current risk priority numbers(RPN) based on those risk types are calculated by three categories: occurrence, detection and severity. Six risk mitigation strategies and fourteen mitigation tactics are identified to improve current RPN. In order to validate the model, questionnaires are collected from fifteen companies and statistically analyzed. The analysis result shows that the model reduces backdoor transaction risks and has no differences in reduction of backdoor transaction risks regardless of the type of purchasing organization units and existence of purchasing procedures in the organization.

• 정보처리학회논문지D
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• 제19D권3호
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• pp.257-262
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• 2012

본 연구는 화주와 물류업체의 협업을 통하여 급변하는 물류 환경에 유연하기 대응하기 위한 공급사슬망에서의 리스크 관리의 중요성과 리스크 분류체계를 제시하는데 있다. 이를 위하여 첫째, 공급사슬리스크와 관련된 기존연구를 고찰하여 18가지의 리스크 발생 원인별로 47개의 리스크요인을 파악하였다. 둘째, 파악된 리스크 요인을 토대로 기업 전문가 집단의 의견을 수렴하여 공급사슬망 관점에서 3개의 대분류와 10개의 중분류로 분류하였다. 셋째, 분류된 리스크에 대해 화주기업과 물류기업을 대상으로 설문 실시 후 확인적 요인분석, 집중타당성, 판별타당성 검증기법을 이용하여 공급사슬망 리스크 분류의 타탕도를 검증하였다. 마지막으로 검증결과를 바탕으로 시사점을 제시한다.

• 한국경제지리학회지
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• 제13권4호
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• pp.681-696
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• 2010

본 연구는 부동산 개발사업 각 단계별로 발생 가능한 위험요인의 중요도를 평가하고, 이에 대한 관리방안을 제시하는데 목적이 있다. 이를 위해 부동산 개발사업에 영향을 미칠 것으로 예상되는 단계별 위험요인을 선행연구를 통해 사전적으로 도출한 다음, 부동산 개발사업 전문가들을 대상으로 설문조사를 실시하여, 단계별 위험요인들의 중요도를 AHP 기법을 이용하여 평가했다. 본 연구결과를 요약하면 다음과 같다. 첫째, 부동산 개발사업의 대분류별 위험요인을 분석한 결과, 개발 전 단계에서는 기획 위험, 개발준비 단계에서는 개발사업 인허가 위험, 개발 단계에서는 현금흐름 위험이 가장 중요한 것으로 평가되었다. 둘째, 부동산 개발사업의 소분류별 위험요인을 분석한 결과, 개발 전 단계에서는 소비자 선호도의 변화, 개발준비 단계에서는 계약 및 인허가 관련업무, 개발 단계에서는 시행사 및 건설사의 부도, 관리 및 운영 단계에서는 사고 및 재해의 발생에 의한 시설보상이 가장 중요한 위험요인으로 평가되었다. 셋째, 이러한 위험요인의 중요도 평가결과에 따라 단계별 위험관리 방안을 제시했다.

• Nuclear Engineering and Technology
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• 제53권11호
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• pp.3465-3473
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• 2021

For a long time, research into integrated deterministic-probabilistic safety assessment has been continuously conducted to point out and overcome the limitations of classical ET (event tree)/FT (fault tree) based PSA (probabilistic safety assessment). The current paper also attempts to assert the reason why a technical transformation from classical PSA is necessary with a re-interpretation of the categories of risk. In this study, residual risk was classified into interpolating- and extrapolating-censored categories, which represent risks that are difficult to identify through an interpolation or extrapolation of representative scenarios due to potential nonlinearity between hardware and human behaviors intertwined in time and space. The authors hypothesize that such risk can be dealt with only if the classical ETs/FTs are freely relocated, entailing large-scale computation associated with physical models. The functional elements that are favorable to find residual risk were inferred from previous studies. The authors then introduce their under-development enabling techniques, namely DICE (Dynamic Integrated Consequence Evaluation) and DeBATE (Deep learning-Based Accident Trend Estimation). This work can be considered as a preliminary initiative to find the bridging points between deterministic and probabilistic assessments on the pillars of big data technology.