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소셜네트워크서비스(Social Network Service: SNS) 사용자의 위험인식에 관한 연구
정다운(Da woon Jung),김병조(Byung Cho Kim) 한국생산관리학회 2016 한국생산관리학회지 Vol.27 No.2
소비자들의 일상화된 인터넷 사용과 소셜네트워크서비스(Social Network Service: SNS)의 결합은 의사소통의 방식을 완전히 바꿔 놓은 것은 물론, 기업의 경쟁 환경에도 큰 변화를 가져왔다. SNS를 통해 빠르게 확산되는 정보의 통제 및 분석능력이 기업 경쟁력의 중요한 축을 구성하게 된 것이다. 이처럼 SNS의 영향력은 급격하게 증대되고 있지만, 아직까지 개인정보 유출이나 사생활 침해 등 SNS의 부정적 측면을 체계적으로 이해하고자 하는 시도는 많지 않은 편이다. 본 연구는 보호동기이론(Protection Motivation Theory: PMT)에 근거하여 SNS를 통한 개인정보유출 및 사생활 침해의 심각성에 대한 사용자 인식에 영향을 주는 요인들을 고찰하고자 했다. 이를 위해 본 연구는 SNS 사용자 243명을 대상으로 설문조사를 실시한 후, 해당 자료에 대한 실증분석을 통해 다음의 내용을 확인하였다: SNS를 통한 개인정보유출 및 사생활 침해라는 잠재적 문제를 두고 (1) 사생활에 대한 우려는 문제의 발생 가능성에 대한 인식의 매개를 통해 문제의 심각성을 인식하는데 유의한 양(+)의 영향을 주고, (2) 이 매개효과는 개인주의-공동체주의에 대한 개인의 성향에 따라 달라질 수 있는데, 개인적 성향이 공동체주의에 가까울수록 효과 크기는 줄어드는 경향이 보이며, (3) SNS에 대한 자기효능감은 매개변수의 개입 없이 심각성 인식에 직접적인 양(+)의 영향을 미친다. Firms are facing new challenges driven by the proliferation of social network services (SNSs) which have changed the way people communicate and interact in their everyday and working lives. Thus, in a new society where most of the people are engaged in SNSs, it is critical for firms to develop a competitive edge in managing and analyzing the information rapidly spreading across social networks. In spite of the growing influence of SNSs, not much attention has been given to understanding the negative aspects of SNS use, such as information leakage and privacy violation. In this study, we apply the protection motivation theory (PMT) to investigate the factors that affect a user’s perception of the severity of information leakage and privacy violation in SNSs. We conducted a survey on 243 SNS users and found the following results: Regarding the potential risks associated with information leakage and privacy violation in SNSs, (1) the level of privacy concern positively affects the perceived severity of risk mediated via the perceived susceptibility of risk, (2) user’s individual propensity towards individualism and collectivism moderates the mediation effect of perceived susceptibility on the relationship between privacy concern and perceived severity of risk, and (3) the level of self- efficacy in SNS usage has a positive impact on perceived severity of risk without any mediation effect from perceived susceptibility of risk.
Early Supplier Involvement in New Product Development under Moral and Technological Uncertainty
류사시(Liu, Xiaoxi),김병조(Kim, Byung Cho) 한국상품학회 2020 商品學硏究 Vol.38 No.2
Over the past few decades, technology firms involve their suppliers in the new product development process, aiming to achieve cost and time reduction and efficiency improvement. Successful early supplier involvement (ESI) can be beneficial for technology firms, while the moral and technological uncertainty of suppliers can negatively affect the outcomes of new product development (NPD) as well. In this context, we study a two-echelon supply chain composed of a material supplier providing specific components of the new product and a technology firm. A literature review in terms of ESI in NPD process, supplier uncertainty, and the incentive mechanism for supply chain collaboration is provided. We consider two types of suppliers, faithful supplier who exerts sufficient effort to develop the specific components to the quality required by the technology firm and unfaithful supplier who is reluctant to invest sufficient time, investment, and efforts to satisfy the quality requirement of the technology firm. In this paper, given the supplier’s moral and technological uncertainty, we provide a three-stage analytical model to explore how technology firms should make decisions about the supplier’s involvement level and the pricing strategy of the new product. The results show that the retail price and wholesale price of low-quality products increase with suppliers’ moral uncertainty. With high moral uncertainty of suppliers, the retail price and wholesale price of low-quality products increase with suppliers’ technological uncertainty; with low moral uncertainty of suppliers, the prices of low-quality products decrease with suppliers’ technological uncertainty. Furthermore, the involvement level decreases with suppliers’ moral uncertainty and technological uncertainty. We also examine the effects of two incentive mechanisms, including penalty contract and revenue sharing contract, on motivating the supplier to participate in new product development faithfully. The result shows that the penalty contract is more favorable to the technology firm than the revenue sharing contract.
국소적 전도차단을 보인 n-Hexane induced neuropathy 1례
서우근,박범식,조성진,전형준,고성범,김병조,박종태,박민규,박건우,이대희,Seo, Wookeun,Park, Beom-Sik,Cho, Seong Jin,Jhun, Hyung-Jun,Koh, Seong-Beom,Kim, Byung-Jo,Park, Jong-Tae,Park, Min-Kyu,Park, Kun-Woo,Lee, Dae-Hie 대한임상신경생리학회 2002 Annals of Clinical Neurophysiology Vol.4 No.1
A 32-year-old man who had worked at aluminum processing plant for 4 months visited us. He complained of numbness and paresthesia of both foot and hands and weakness of all extremities. Electrophysiologic study showed motorsensory polyneuropathy of diffuse axonal type with focal conduction block. And we discovered higher concentration of n-Hexane in his workplace. On sural nerve biopsy, bubbly enlarged nerve fibers in light microscope and thick myelin sheath and axonal degeneration on electron microscope were found. We diagnosed it as n-Hexane induced neuropathy.
전기홍(Ki Hong Chun),조우현(Woo Hyun Cho),김보경(Bo Kyung Kim),김병조(Byung Cho Kim) 한국병원경영학회 2001 병원경영학회지 Vol.6 No.2
A new cost management system, called Activity Based Costing (ABC) system, has arisen to solve the limitation of a Traditional Cost Accounting (TCA) system until last two decades and ABC has been applied by many companies. TCA systems have limitation in tracing cost because they arbitrarily allocate overhead cost to the cost objects without standard for direct cost distribution. ABC is an accounting system that assigns costs to products or services based on the resources they consume. The costs of all activities are traced to the product for which they are performed. Therefore ABC is a cost management system that provides a matrix to accurately quantify consumed resources triggered by activities and activities triggered by products and services. There is little implementation of ABC in the health services field, one of service industries, due to complicated and many activities, and volatile cost object. However, the necessity for applying reasonable cost accounting system is largely issuing as strategy responding hostile environment, and financial pressure, and it is imperative to implement the Activity Based Costing (ABC) system. Therefore, this study presents the framework to develop ABC system for total health service organizations. Cost objects in this study base on medical service activities per health insurance claim from one general hospital located in Metropolitan Statistical Areas (MSAs). Medical service activities include all health insurance claims in the hospital. The purpose of the study is presenting useful tools and basic frame to develop Activity Based Costing system for health service organizations which want to use ABC system. The steps to develop ABC system for health service organizations are following: 1. Identifying of activity centers ; 2. Definition of cost objects and activity by activity center ; 3. Analysis of activity and tracing activity contribution ; 4. Allocation of direct cost for specific activity ; 5. Allocation of indirect cost for specific activity ; 6. Allocation of depreciation for facilities, applicants, and consumption goods ; 7. Allocation of administration cost ; 8. Allocation of cost among activity centers ; and 9. Tracing cost of cost objects by activity center. This study identified necessary information from existing reports which hospitals generally made by each step, and defined outcome which had to be produced in each step using this information. The steps of this study had limitation to apply all different size hospitals because the steps were structured ABC system by one hospital, however, this study used similar basic framework and methods with general cases. When a health service organization want to apply Activity Based Costing (ABC) system on all activities of it in future days, this study is very useful to design system structure in the health service organization.