• 제목/요약/키워드: risks

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RISK MANAGEMENT IN CIVIL CONSTRUCTION PROJECTS - FROM COST ESTIMATING PERSPECTIVE

  • Ashley Jaensch;Jian Zuo;Nicholas Chileshe
    • 국제학술발표논문집
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    • The 4th International Conference on Construction Engineering and Project Management Organized by the University of New South Wales
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    • pp.162-167
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    • 2011
  • Construction projects are full of risks. This is particularly the case in civil construction projects that are often featured with large scale, complexity and involving a large number of participating parties. The eventuation of risks typically results in extended project durations leading to an increase in the total project budget. The consequence can be amplified considering the significant impacts of civil construction projects on the society, from economical, environmental and social perspectives. This research investigates the significance of risks within civil construction projects and approaches to deal with risks. Semi-structured interviews were undertaken with local industry practitioners in South Australia on this matter. It is found that the industry is fairly aware of risks associated with civil construction projects and subsequently has procedures in place to attempt to minimize the impacts of these risks on the project outcomes. The interview results also indicate that there is limited utilization of software for the risk management purpose from the cost estimation perspective.

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Roles of Malaysian Online Newspapers in the Construction of Public Opinion on Rare Earth Risks

  • Hasan, Nik Norma Nik;Dauda, Sharafa
    • Asian Journal for Public Opinion Research
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    • 제8권4호
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    • pp.432-452
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    • 2020
  • This study explored the representation of risks from the controversial Lynas rare earth refining as a risk event by five Malaysian online mainstream and alternative newspapers using qualitative content analysis. The aim is to uncover the role of the news media in the social amplification and attenuation of risks within the literature evidence as those roles are still uncertain. Content analysis is used to explore the online newspapers' roles guided by the Social Amplification of Risk Framework (SARF). The representations typified environmental, financial, health, occupational, property, radioactive, and technological risks and established connections between four risk types (environmental, financial, radioactive, and health risks). Radioactive risk was repeatedly associated with other risks, suggesting that the volume and information flow focused on radioactive risk as a key ingredient for amplification. This connection shows that the nature of the relationship between risks is multidimensional, contradicting the unidirectional type found in previous studies. Alternative online newspapers amplified and attenuated more risks, thus, providing more diverse coverage than mainstream sources. Consequently, this study provides evidence that risk representation from rare earth refining in a digital news environment is multidimensional and intensified or weakened in a multi-layered pattern. The stakeholders are engaged in a contestation by positioning their narratives to oppose or support their interests, which are amplified or attenuated by the online newspapers as social amplification stations.

Cancer Risks among Welders and Occasional Welders in a National Population-Based Cohort Study: Canadian Census Health and Environmental Cohort

  • MacLeod, Jill S.;Harris, M. Anne;Tjepkema, Michael;Peters, Paul A.;Demers, Paul A.
    • Safety and Health at Work
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    • 제8권3호
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    • pp.258-266
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    • 2017
  • Background: Welders are exposed to many known and suspected carcinogens. An excess lung cancer risk among welders is well established, but whether this is attributable to welding fumes is unclear. Excess risks of other cancers have been suggested, but not established. We investigated welding cancer risks in the population-based Canadian Census Health and Environmental Cohort. Methods: Among 1.1 million male workers, 12,845 welders were identified using Standard Occupational Classification codes and followed through retrospective linkage of 1991 Canadian Long Form Census and Canadian Cancer Registry (1992-2010) records. Hazard ratios (HRs) were calculated using Cox proportional hazards models based on estimated risks of lung cancer, mesothelioma, and nasal, brain, stomach, kidney, and bladder cancers, and ocular melanoma. Lung cancer histological subtypes and risks by industry group and for occasional welders were examined. Some analyses restricted comparisons to blue-collar workers to minimize effects of potential confounders. Results: Among welders, elevated risks were observed for lung cancer [HR: 1.16, 95% confidence interval (CI): 1.03-1.31], mesothelioma (HR: 1.78, 95% CI: 1.01-3.18), bladder cancer (HR: 1.40, 95% CI: 1.15-1.70), and kidney cancer (HR: 1.30, 95% CI: 1.01-1.67). When restricted to blue-collar workers, lung cancer and mesothelioma risks were attenuated, while bladder and kidney cancer risks increased. Conclusion: Excess risks of lung cancer and mesothelioma may be partly attributable to factors including smoking and asbestos. Welding-specific exposures may increase bladder and kidney cancer risks, and particular sources of exposure should be investigated. Studies that are able to disentangle welding effects from smoking and asbestos exposure are needed.

The efficacy of mobile application use on recall of surgical risks in nasal bone fracture reduction surgery

  • Kim, Choong Hyeon;Cheon, Ji Seon;Choi, Woo Young;Son, Kyung Min
    • 대한두개안면성형외과학회지
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    • 제19권1호
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    • pp.41-47
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    • 2018
  • Background: The number of surgical risks recalled by a patient after surgery can be used as a parameter for assessing how well the patient has understood the informed consent process. No study has investigated the usefulness of a self-developed mobile application in the traditional informed consent process in patients with a nasal bone fracture. This study aimed to investigate whether delivery of information, such as surgical risks, through a mobile application is more effective than delivery of information through only verbal means and a paper. Methods: This prospective, randomized study included 60 patients with a nasal bone fracture. The experimental group (n=30) received preoperative explanation with the traditional informed consent process in addition to a mobile application, while the control group (n=30) received preoperative explanation with only the traditional informed consent process. Four weeks after surgery, the number of recalled surgical risks was compared for analysis. The following six surgical risks were explained: pain, bleeding, nasal deformity, numbness, nasal obstruction, and nasal cartilage necrosis. Results: The mean number of recalled surgical risks among all patients was $1.58{\pm}0.56$. The most frequently recalled surgical risk was nasal deformity in both groups. The mean number of recalled surgical risks was $1.72{\pm}0.52$ in the experimental group and $1.49{\pm}0.57$ in the control group. There was a significant association between mobile application use and the mean number of recalled surgical risks (p=0.047). Age, sex, and the level of education were not significantly associated with the mean number of recalled surgical risks. Conclusion: This study found that a mobile application could contribute to the efficient delivery of information during the informed consent process. With further improvement, it could be used in other plastic surgeries and other surgeries, and such an application can potentially be used for explaining risks as well as delivering other types of information.

초기 건설공사 리스크인자의 중요도 산정 (Weight Evaluation of Risk Factors for Early Construction Stage)

  • 황지선;이찬식
    • 한국건설관리학회논문집
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    • 제5권2호
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    • pp.115-122
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    • 2004
  • 이 논문은 건설공사 과정에서 불확실성과 위험성이 비교적 높은 토공사, 지정공사 및 기초공사에서 발생할 수 있는 리스크인자의 중요도 산정에 관한 것이다. 이 연구는 리스크 $식별\cdot분석\cdot대응$으로 이루어지는 리스크관리 3단계 중 리스크 식별과 분석단계를 중심으로 연구를 진행하였다. 리스크 식별은 기존의 건설공사 작업분류체계를 참고하여 대상 공종을 $공통\cdot토공사\cdot지정$ 및 기초공사로 구분하여 초기 건설공사의 리스크 분류체계를 제시하였다. 리스크 분석은 리스크분류체계를 바탕으로 퍼지이론에 기반하여 실시하였다. 리스크인자의 중요도는 AHP기법에 의한 상대적 중요도와 퍼지척도로부터 구한 리스크인자들 사이의 절대적 중요도를 고려하여 산정하였으며 리스크 인자의 최종적인 중요도는 Sugeno $\lambda$-퍼지척도를 사용하여 구하였다.

Psychosocial Risks Assessment in Cryopreservation Laboratories

  • Fernandes, Ana;Figueiredo, Margarida;Ribeiro, Jorge;Neves, Jose;Vicente, Henrique
    • Safety and Health at Work
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    • 제11권4호
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    • pp.431-442
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    • 2020
  • Background: Psychosocial risks are increasingly a type of risk analyzed in organizations beyond chemical, physical, and biological risks. To this type of risk, a greater attention has been given following the update of ISO 9001: 2015, more precisely the requirement 7.1.4 for the process operation environment. The update of this normative reference was intended to approximate OHSAS 18001: 2007 reference updated in 2018 with the publication of ISO 45001. Thus, the organizations are increasingly committed to achieving and demonstrating good occupational health and safety performance. Methods: The aim of this study was to characterize the psychosocial risks in a cryopreservation laboratory and to develop a predictive model for psychosocial risk management. The methodology followed to collect the information was the inquiry by questionnaire that was applied to a sample comprising 200 employees. Results: The results show that most of the respondents are aware of the psychosocial risks, identifying interpersonal relationships and emotional feelings as the main factors that lead to this type of risks. Furthermore, terms such as lack of resources, working hours, lab equipment, stress, and precariousness show strong correlation with psychosocial risks. The model presented in this study, based on artificial neural networks, exhibited good performance in the prediction of the psychosocial risks. Conclusion: This work presents the development of an intelligent system that allows identifying the weaknesses of the organization and contributing to the enhancement of the psychosocial risks management.

IS 아웃소싱의 위험과 아웃소싱의 정도에 관한 연구 (The Effect of Risks and Strategic Recognition on the Degree of IT Outsourcing)

  • 문용은;박유진
    • 한국정보시스템학회지:정보시스템연구
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    • 제11권1호
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    • pp.1-28
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    • 2002
  • Today, IT outsourcing has become a very important management strategy of implementing information systems in organizations. This paper investigates the risks and strategic recognition as a key factors effecting on the degree of outsourcing, Specifically the risks of outsourcing and its four components-control risk, economical risk, technical risk, relational risk-are examined to be a negative effect on the degree of outsourcing. And strategic recognition about outsourcing is examined to be a mediator factor between the risks and the degree of outsourcing. To empirically test these relationships, data are gathered from senior IT managers in 62 corporations. Results of this study show that the degree of outsourcing is strongly influenced by control risk, economical risk, relational risk. But technical risk does not influence on the degree of outsourcing. And strategic recognition about outsourcing is found that is mediator concern with the risks and the degree of outsourcing. The results indicate to provide a good framework to minimize the risks for IT outsourcing success.

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A Basic Study on the Introduction of Professional Indemnity Insurance for Construction Project Managers

  • Cho, Young-Jun
    • 한국건축시공학회지
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    • 제13권2호
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    • pp.102-111
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    • 2013
  • During the administration of a construction project, various types of participants are engaged in the project. From the design phase to the maintenance phase, these participants may confront many risks. To avoid these risks, participants should utilize an insurance company or a bond company. The types of risks and liability that a construction manager may face are listed in the construction law or contract. But there are some arguments related to risk transferring and the content of risks. For this reason, construction managers must carefully consider any possible risks in the contract and the construction law. Therefore, for construction managers to deal with risks appropriately, the introduction of a legal requirement to carry professional liability insurance, a defined compensation range for damages, a method of guarantee in the event of defects, a defined compensation claim period for damage, and a method of damage claim were suggested in this study.

전자상거래에서의 지각된 위험의 분류 및 측정도구 개발에 관한 연구 (The Classification of the Perceived Risks Involved in E-Commerce and the Developments of Their Measures)

  • 강영신;이춘열;정승렬
    • 한국정보시스템학회지:정보시스템연구
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    • 제15권1호
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    • pp.215-238
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    • 2006
  • The purpose of this study is to develop the measures of the perceived risks involved in e-commerce. To do this, we first review the literature and examine the sub-constructs of the perceived risks. The risks classified are economic risk, product performance risk, social risk, technology/time loss risk, and privacy risk. Based on these findings, we identify the appropriate items for assessing these various risks. Then, we evaluate, basically using a structural equation model, the important several attributes of the measurs such as various validities and reliability. This study finally provides the rigorously tested measuring instruments of the construct of the perceived risks.

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ISM기법을 이용한 도시재생사업 리스크 요인의 상관성 분석에 관한 연구 (A Study on Correlation Analysis of Risk Factors for Urban Regeneration Using ISM method)

  • 박범석;김윤식;한상원;현창택
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2013년도 춘계 학술논문 발표대회
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    • pp.192-193
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    • 2013
  • In recent years, risks associated with mixed used development in urban regeneration projects which have actively been implemented have been on the rise due to uncertainties and complexities of those projects. Thus, risk management is needed to effectively manage those risks that may occur during the process of a project. Many studies have contributed to deal with risk management of those projects. These studies, however, have focused main on identification stage and deriving the main risk factors and have limitations on presenting the relationship among those risk factors. Since many risks are interdependent and have multiple effects, the purpose of this study is to present a way(ISM method) to provide a hierarchical structural framework of risks in Urban Regeneration. The structural of risks can helps decision makers to trace the actual source of these risks.

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