• 한국정보시스템학회지:정보시스템연구
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• 제31권3호
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• pp.153-176
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• 2022

Purpose This study aims to identify and empirically prove the factors and influence relationships that affect the intention to continue using the video conferencing solution. Design/methodology/approach This study designed a research model by integrating self-efficacy, facilitation condition, event-related fear, and social influencing factors based on the post-acceptance model of IT continuance that explained the relationship between disconfirmation, post-usage usefulness, satisfaction, and continuance intention. Findings As a result of empirical analysis, in this study, it was confirmed that positive disconfirmation and post-usage usefulness had a positive effect on satisfaction, and satisfaction had a positive effect on continuance intention. In addition, we confirmed that self-efficacy and social influence had a positive effect on continuance intention, but event-related fear and facilitating condition had no significant effect.

• 보건행정학회지
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• 제17권3호
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• pp.106-128
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• 2007

The Korean health care system is under great controversy. Over the last 30 years, main goal of health policies was to pursue equal access of health care services. However, another goal of health policies laid on efficiency and Quality of care, it had lower priorities. Superficially, controversy stems from priority setting among goals of health care system, equity, efficiency and quality. At a deeper level, arguments arise from disagreement and confusion about the values of Korean health care system. One of the value spectrums believes that health care is the basic right of human beings, therefore it should be produced and distributed on need approach, and needs are known to be decided by professionals. If we accept need approach, health care is a pubic good. Another value of spectrums considers that health care should be distributed on demand approach. Demand approach means that health care is a consumption good on the positive economics, while normative judgement believes that health care is a public good. In equity aspect, health care is considered as a public good. Over the last several years, some of scholars proposed health care reform based on the principle of competition which is based on demand approach. Others argue that the competition principle based on demand approach is not appropriate for the reform proposal, because health care has to be approached on need base. If we do not make explicit values we should adopt, consensus building for reform is nearly impossible. From this perspective, this article will review an ideology and reality in health policies in Korea.

• 한국직업건강간호학회지
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• 제27권3호
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• pp.160-170
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• 2018

Purpose: The purpose of this study is to provide preliminary data for alleviating nurses' job stress and support health promotion behaviors. Further, the study reviews the mediating effects of positive psychological capital and nursing work environment in relation to job stress and health promotion behaviors among nurses in a regional general hospital. Methods: A study survey was conducted from June 9 to 16, 2017. The subjects were current nurses working at a regional general hospital in D city. Analysis of a survey questionnaire from 147 participants was conducted. Results: Upon reviewing the mediating effects of positive psychological capital and nursing work environment in relation with health promotion behaviors and job stress, it was found that positive psychological capital (Z=-4.78, p<.001) and nursing work environment (Z=-4.17, p<.001) were significant mediators. Conclusion: As demonstrated through the results of this research, it is necessary to build programs to strengthen individual positive psychological capital and increase the practice of health promotion behaviors among nurses. It is also evident that a systematic approach is needed to improve the nursing work environment.

• Computers and Concrete
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• 제14권2호
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• pp.109-125
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• 2014

The force transfer mechanism in positive moment continuity details for prestressed concrete girder bridges is investigated in this paper using a three-dimensional detailed finite element model. Positive moment reinforcement in the form of hairpin bars as recommended by the National Cooperative Highway Research Program Report No 519 is incorporated in the model. The cold construction joint that develops at the interface between girder ends and continuity diaphragms is also simulated via contact elements. The model is then subjected to the positive moment and corresponding shear forces that would develop over the service life of the bridge. The stress distribution in the continuity diaphragm and the axial force distribution in the hairpin bars are presented. It was found that due to the asymmetric configuration of the hairpin bars, asymmetric stress distribution develops at the continuity diaphragm, which can be exacerbated by other asymmetric factors such as skewed bridge configurations. It was also observed that when the joint is subjected to a positive moment, the tensile force is transferred from the girder end to the continuity diaphragm only through the hairpin bars due to the lack of contact between the both members at the construction joint. As a result, the stress distribution at girder ends was found to be concentrated around the hairpin bars influence area, rather than be resisted by the entire girder composite section. Finally, the results are used to develop an approach for estimating the cracking moment capacity at girder ends based on a proposed effective moment of inertia.

• 자원ㆍ환경경제연구
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• 제17권1호
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• pp.83-120
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• 2008

최근 경제와 산업 전반에서 중소기업의 환경성과와 환경활동은 지속가능 발전의 관점에서 특히 관심이 고조되고 있다. 중소기업을 지속가능성 체계(stainability framework)에 포함시키기 위해 진행되고 있는 다양한 노력 중에서도 그 동안 대기업이 주도하던 친환경공급망관리(Supply Chain Environmental Management)는 중소기업의 환경활동을 촉진시키는 유용한 수단으로 인식되고 있다. 본 연구는 우리나라 전기전자산업에서 대기업 주도의 친환경공급망접근방법(SCEM approach)이 중소기업의 환경성과에 미치는 영향에 대하여 실증분석하였다. 연구방법론으로는 설문조사 결과에 대하여 인자분석과 회귀분석을 실시하였다. 계량분석 결과, 대기업 주도의 SCEM이 중소기업의 환경활동촉진에 긍정적인 영향을 미치고 있으며, 특히 친환경공급망접근방법 중에 시장거래(arm's length) 기법보다는 협력적(collaborative) 기법이 더 효과적으로 중소기업의 환경활동 촉진에 기여하고 있다는 점을 제시하였다. 본 연구에서는 다국적 기업의 친환경공급망접근방법 역시 중소기업의 환경활동촉진에 중요한 요인이 되고 있다는 점도 도출하였다.

• 한국유통학회지:유통연구
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• 제15권2호
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• pp.101-122
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• 2010

본 연구에서는 인터넷 쇼핑 사이트를 이용하여 의류 구매시 느끼는 긍정적, 부정적 감정이 쾌락적, 실용적 가치지각에 미치는 영향과, 이러한 쾌락적, 실용적 가치지각이 점포접근행동에 미치는 영향관계를 연구하였다. 이 연구를 위하여 Babin and Attaway가 오프라인 쇼핑 사이트 연구에 활용한 연구모형을 인터넷 쇼핑상황에 적용하여 연구모형을 제시하고 실험자료를 통하여 검증하였다. 인터넷 쇼핑몰을 통해 의류상품을 쇼핑하는 과업을 수행하고 제시된 설문 문항에 응답하도록 하는 실험을 실시하여 278명의 결과가 통계분석에 이용되었으며 탐색적/확인적 요인분석과 Amos 6.0을 활용한 구조방정식 모형 검증을 실시하였다. 구조방정식 모형검증 결과 인터넷 의류 쇼핑 사이트에 대해 부정적인 감정을 많이 느낄수록 사이트에 대한 쾌락적, 실용적 가치지각이 낮았으며, 긍정적인 감정을 많이 느낄수록 사이트에 대한 쾌락적, 실용적 가치지각이 높았다. 이렇게 지각된 인터넷 의류쇼핑사이트의 쾌락적, 실용적 가치는 태도에 긍정적인 영향을 미치나, 재방문의도에는 실용적 가치만이 긍정적인 영향을 미쳤다. 본 연구결과를 바탕으로 이론적, 실무적 시사점들이 제시되었다.

• 한국콘텐츠학회논문지
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• 제10권12호
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• pp.84-90
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• 2010

Viola와 Jones가 사용한 Haar-like 특징 기반 약분류기의 분별력을 개선하기 위하여, 2차 판별식에 기반한 판정 경계(decision boundary) 결정 방법을 제안한다. Viola와 Jones가 부스팅된 약분류기 앙상블을 사용해서 강분류기를 만들 때 사용한 단일 판정 경계 기반 약분류기는 특징 공간을 지나치게 단순하게 해석한 산물이어서 대부분의 경우 최적이 아니며, 객체 클래스와 배경 클래스 간을 효율적으로 분별하기에 흔히 너무 약하다. 이 논문에서 제안하는 2차 판별식 분석에 기반한 방법은 객체 클래스와 배경 클래스 사이에 다중 판정 경계를 사용하는 약분류기를 만들어준다. 1000개의 positive 샘플과 3000개의 negative 샘플을 훈련에 사용하고, 500개의 positive와 500개의 negative를 테스트에 사용한 차량 검출 실험을 통해서, 기존의 단일 문턱치 기반 약분류기 방식에 비해, 제안 기법이 더 적은 수의 분류기를 사용하면서도 더 우수한 분류 성능을 제공하는 것을 확인하였다.

• The Korean Journal of Pain
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• 제34권4호
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• pp.447-453
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• 2021

Background: Provocative discography (PD) is a test that is useful in diagnosing discogenic pain (DP). In this study, to diagnose DP, we used a posterolateral approach of needle placement and followed pressure criteria laid down by the Spine Intervention Society. The aim was to identify the correlation between magnetic resonance imaging (MRI) findings (desiccation, high intensity zone and change in shape and size of the disc) and the results of PD. Methods: Records of 50 patients who underwent PD for DP were analyzed. A total of 109 PDs were performed, with 54 suspect and 55 control discs. Alternate pain generators were ruled out. Results: A total of 35 suspect discs were positive on PD. The mean disc pressure in the suspect disc was 31.9 ± 7.9 psi (range, 15-44). Of the 50 patients who underwent PD, 35 had positive MRI findings. A significant positive correlation was found only between disc desiccation and discography result (r = 0.6, P < 0.001). Logistic regression analysis revealed that only desiccation successfully predicted the result of discography (OR = 26.5, P < 0.001); a high intensity zone and a disc protrusion/extrusion had an OR 2.3 and 1.24, respectively. Disc desiccation of Pfirmann grade 3 or more had a sensitivity and specificity of 0.93 and 0.64 respectively in identifying painful discs; the positive likelihood ratio was 2.58 while the negative likelihood ratio was 0.11. Conclusions: In patients with DP, disc desiccation is the most useful MRI feature that predicts a painful disc on PD.

• 한국콘텐츠학회논문지
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• 제18권7호
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• pp.153-164
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• 2018

본 연구에서는 양육 청소년 미혼모를 대상으로 적응유연성이 긍정적 양육행동에 미치는 영향을 살펴보고, 적응유연성과 긍정적 양육행동의 관계에서 사회적 편견의 매개효과를 알아보고자 하였다. 그 결과 다음과 같은 사실이 밝혀졌다. 첫째, 적응유연성 중 낙관성이 사회적 편견에 부(-)의 영향을 미치는 것으로 나타났다. 둘째, 적응유연성 중 삶에 대한 긍정적 태도와 자신에 대한 긍정적 평가가 긍정적 양육행동에 정(+)의 영향을 미치는 것으로 나타났다. 셋째, 사회적 편견은 긍정적 양육행동에 부(-)의 영향을 미치는 것으로 나타났다. 넷째, 적응유연성과 긍정적 양육행동의 관계에서 사회적 편견은 매개효과가 있는 것으로 나타났다. 이와 같은 연구결과를 바탕으로 본 연구는 양육 청소년 미혼모들의 적응유연성과 긍정적 양육행동 강화방안을 모색하고, 양육 청소년 미혼모에 대한 사회적 편견을 불식시킬 수 있는 상담적 개입과 사회복지적 접근의 중요성을 촉구하였다.

• 한국시스템다이내믹스연구
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• 제14권4호
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• pp.113-141
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• 2013

The main purpose of this research is to introduce PsyCap(Positive Psychological Capital) and new leadership helping ordinary people to create positive thinking and leading to social integration in South Korea. Additionally, by looking at conventional leadership theories and by applying the PsyCap to leadership based on causal loop analysis, this study is to seek new approach which political leader is able to communicate with the people and can help the people to build positive mine. Throughout this study, there are several important implications how political leader can lead to social integration and stable political development in South Korea. In particular, when political leader encourage the people to have confidence to take on and put in the necessary effort to succeed at challenging tasks, when political leader make the people a positive attribution (optimism) about succeeding now and in the future, when political leader help the people to persevere toward goals and redirection paths to goals (hope) in order to succeed, and when political leader make the people beset by problems and adversity environment to overcome these concerns, it can be expected political leader to build social integration and the people to create positive thinking which has been emphasized by political leader in South Korea. Finally, 21st century has required new political leadership that the people are able to make positive psychological capital composed by optimism, hope, confidence, and resilience.