• 제목/요약/키워드: Positive Risks

검색결과 336건 처리시간 0.026초

항공 안전 필수 시스템에 대한 독립적 검증 및 확인의 효과도 분석 (The Effectiveness of Independent Verification and Validation of Safety-critical Aviation Systems)

  • 김영훈;유병선;강자영
    • 한국항행학회논문지
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    • 제21권2호
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    • pp.155-162
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    • 2017
  • 최근 국내에서 항공 관련 안전필수시스템들이 개발되었지만 이들 완성품들은 규정된 요구사항들을 충족시키지 못하여 실용화 또는 상용화 되지 못하였다. 현대 항공 기술의 복잡도가 높아짐에 따라 기존의 검증 및 확인 기술로는 시스템에 잠재된 리스크를 식별하고 줄이는데 어려움이 많다. 이러한 단점들을 극복하기 위해 선진국에서는 독립적 검증 및 확인이라는 새로운 기법에 관심이 모아지고 있다. 이 독립적 검증 및 확인의 효과도에 관한 학술적 연구는 국내에는 전무하고, 국외에서 조차도 매우 희소하게 수행되고 있다. 따라서 본 논문에서는 항공선진기관에서 수행한 항공 안전필수시스템에 대한 독립적 검증 및 확인의 응용 연구들을 조사하여 사업에 미치는 여러 가지 효과들을 분석해 본 결과, IV&V는 조기 오류 검출율을 높이고, 내재된 리스크도 조기에 완화하며, 개발 수명주기 후반에 나타나는 재작업 확률을 줄여서 개발 일정 및 비용의 증가를 획기적으로 막아주는 것으로 나타났다.

유머러스한 기업 구성원: 유머, 문화, 그리고 인상관리 (A Joker's Image: Humor, Work Impressions, and Culture in Korean Workplaces)

  • 김희선
    • 한국콘텐츠학회논문지
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    • 제20권9호
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    • pp.397-413
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    • 2020
  • 한국 기업과 사회에서 변화하는 문화적 흐름에 따라 유머는 유용한 인상관리 기법이 될 수 있다. 본 연구의 목적은 유머를 성공적인 인상관리 기법으로 활용하기 위하여 이해해야 되는 요소들을 확인하는 것에 있다. 본 연구는 참여적 관찰(participant observation) 과 인터뷰(semi-structured interviews) 를 통한 질적 연구를 진행하였다. 참여자들은 유머를 통한 인상관리가 대부분 유교문화에 기반을 둔 상대적 역할에 맞춰 사용되며, 상급자(superior) 가 더 적극적이고 다양하게 사용한다고 인식하였다. 그러나 상대적으로 젊은 참여자들은 유머가 기업의 역할에서 벗어날 수 있는 독창적인 인상관리 기법이 될 수 있으며, 이 과정에서 유머가 다양한 해석 및 결과를 나타낼 수 있다는 인식이 참여자들에게 불안감과 스트레스를 주는 것으로 나타났다. 이는 유머를 사용할 때 환경과 소통하는 대상의 문화적 성향을 고려하고, 기업들은 효과적인 인상관리 기법에 대한 교육을 도입해야 의도하지 않은 결과를 피하여 긍정적인 결과를 얻을 것이다.

The Core Values that Support Health, Safety, and Well-being at Work

  • Zwetsloot, Gerard I.J.M.;van Scheppingen, Arjella R.;Bos, Evelien H.;Dijkman, Anja;Starren, Annick
    • Safety and Health at Work
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    • 제4권4호
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    • pp.187-196
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    • 2013
  • Background: Health, safety, and well-being (HSW) at work represent important values in themselves. It seems, however, that other values can contribute to HSW. This is to some extent reflected in the scientific literature in the attention paid to values like trust or justice. However, an overview of what values are important for HSW was not available. Our central research question was: what organizational values are supportive of health, safety, and well-being at work? Methods: The literature was explored via the snowball approach to identify values and value-laden factors that support HSW. Twenty-nine factors were identified as relevant, including synonyms. In the next step, these were clustered around seven core values. Finally, these core values were structured into three main clusters. Results: The first value cluster is characterized by a positive attitude toward people and their "being"; it comprises the core values of interconnectedness, participation, and trust. The second value cluster is relevant for the organizational and individual "doing", for actions planned or undertaken, and comprises justice and responsibility. The third value cluster is relevant for "becoming" and is characterized by the alignment of personal and organizational development; it comprises the values of growth and resilience. Conclusion: The three clusters of core values identified can be regarded as "basic value assumptions" that underlie both organizational culture and prevention culture. The core values identified form a natural and perhaps necessary aspect of a prevention culture, complementary to the focus on rational and informed behavior when dealing with HSW risks.

기업가 특성이 소프트웨어 혁신성 및 기업성과에 미치는 영향과 제도적 압력의 조절효과 (Effects of Entrepreneur Characteristics and Software Innovativeness on Performance of Software Company: The Moderating Effects of Institutional Pressure)

  • 최문종;이동만
    • 한국정보시스템학회지:정보시스템연구
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    • 제22권4호
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    • pp.23-48
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    • 2013
  • This study shows that a sustainable competitive advantage and entrepreneurial characteristics are necessary for a software company to achieve competitive innovation and growth. This study investigates various software company characteristics and the effects of various company factors as its main research objectives. The data used in this research model were collected from software companies in South Korea. A total of 211 questionnaires were collected over a period of two months in 2013. EXCEL, AMOS, and SPSS were used to derive the study results. The hypothesis testing results of this study are as follows. First, a software company's entrepreneurial innovativeness and risk-taking behaviors have a positive influence on software innovativeness. A greater sense of innovativeness and entrepreneurial orientation leads to a higher propensity to take risks in software development. Second, the characteristics of software innovativeness, and flexibility have a significant influence on software company performance. Innovation during the initial periods of software usage can create a high demand for improvements and new features, requiring a flexible software design. Finally, this study analyzes the software features of entrepreneurial characteristics and the influence of institutional factors on the characteristics of individual innovativeness and software development. Entrepreneurial characteristics can affect governmental or institutional support, policies, and legal frameworks to promote the role of software innovativeness. The results of this study imply that software companies can adopt an entrepreneurial approach to promote technology development and product development for achieving a competitive advantage in the industry. This study also analyzes the environmental factors that affect the software industry and their implications for policy makers.

교통운영체계 선진화 방안 효과분석 연구 (Study on the Effectiveness Analysis of Policies for the Advancement of Traffic Control & Operation Systems)

  • 이철기;윤일수;오영태;김수희
    • 한국ITS학회 논문지
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    • 제10권2호
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    • pp.35-41
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    • 2011
  • 경찰청에서는 국내 교통문제를 해결하고 국제적 교통운영체계를 수립하기 위하여 "교통운영체계 선진화 방안"사업을 추진하고 있다. 본 연구는 교통운영체계 선진화 방안의 추진 효과를 분석하였으며, 그 결과 교통소통 및 교통안전측면에서 효과가 있는 것을 밝혔다. 그러나 정책에 대한 시민들의 낮은 인지도, 부적절한 현장적용 등으로 인한 교통사고의 위험 및 정체가중, 교차로 꼬리물기 위반행위 발생 등의 문제점들이 도출되었다. 현재 선진화 방안은 주로 직진우선신호, 비보호좌회전, 점멸신호 운영 등 교통신호운영 방법 개선을 위주로 추진되고 있는데, 향후 최종적으로 교통운영체계 선진화 모든 과제가 복합적으로 도입될 경우 현재 보다는 더 나은 효과를 기대할 수 있을 것이다.

기업 보안관리 강화의지 및 실행에 영향을 미치는 요인에 관한 연구 (An Empirical Study on Influential Factors of the Development and Implementation in Firm Security Management)

  • 황종호
    • 경영과정보연구
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    • 제32권2호
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    • pp.213-235
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    • 2013
  • 본 연구는 기업의 보안관리의 중요성이 커지고 있는 반면 이에 대한 이해와 관심이 부족한 현실을 지적하고 보안관리를 유연하게 실행할 수 있는 적절한 해결안을 조사하고자 한다. 따라서 본 연구는 보안관리의 강화의지 및 실행에 영향을 미치는 요인으로 조직몰입, 보안위험 경험, 인지된 혜택, 파트너 의존성, 총 4가지의 외생변수를 제안하고 강화의지와 실행의 사이를 강화시켜줄 조절변수로 IT불안정성을 제안하였다. 제안된 연구모형 검증하기 위해 AMOS 19.0을 사용하여 209개 설문을 구조방정식 접근을 통해 분석하였다. 연구결과 파트너 의존성을 제외한 나머지 변수들, 즉 조직몰입, 보안위험 경험, 인지된 혜택, 파트너 의존성은 보안관리 강화의지에 통계적으로 긍정적인 영향을 미치는 것으로 나타났다. 본 연구의 결과를 바탕으로 기업단위의 보안관리에 대한 새로운 학문적 근거를 제안하고 실무적 관리 지침에 중요한 역할을 할 수 있을 것이다.

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Acupuncture as an adjunct treatment to increase the success rate of in vitro fertilisation: an overview of systematic reviews and meta-analyses

  • Jeong, Daun;Hyun, Min-Kyoung;Jeong, Jae-Cheol;Park, Jang-Kyung;Choi, Min-Sun;Kim, Dong-Il;Lee, Dong-Nyung
    • 대한한의학회지
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    • 제35권2호
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    • pp.1-11
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    • 2014
  • Objectives: To evaluate the effect of acupuncture as an adjunct treatment to increase the success rate of in vitro fertilisation (IVF). Methods: A review of the English and Korean literature was conducted to identify studies on acupuncture as an adjunct treatment to IVF. The main outcome measures were the biochemical pregnancy rate (BPR), the implantation rate (IR), the clinical pregnancy rate (CPR), the miscarriage rate (MR), the on-going pregnancy rate (OPR) and the live birth rate (LBR). Results: Nine meta-analyses of 11 systematic reviews (SRs) were included in this review. In four SRs, the overall IVF outcomes regardless of the procedural steps were documented; two of these SRs reported a significant effect on the CPR. One SR reported that acupuncture at the time of controlled ovarian hyperstimulation had a significant effect on the BPR. Seven SRs reported that acupuncture had no significant impact on transvaginal oocyte retrieval (TVOR). In eight SRs, significant impacts on the CPR, LIBR and OPR were reported when acupuncture was performed around the time of embryo transfer (ET). The results of repeated acupuncture after ET were included in two SRs, which included the same primary studies. The results of the SRs showed that acupuncture had a positive effect on the CPR. Conclusions: When the complete IVF procedure is analysed, there is conflicting evidence in that some reviews have found that acupuncture leads to an increased CPR but others have not. In addition, the reviews presented no evidence to suggest that acupuncture has any specific risks.

Adherence to Recommended Treatments for Early Invasive Breast Cancer: Decisions of Women Attending Surgeons in the Breast Cancer Audit of Australia and New Zealand

  • Roder, David M.;Silva, Primali De;Zorbas, Helen N.;Webster, Fleur;Kollias, James;Pyke, Chris M.;Campbell, Ian D.
    • Asian Pacific Journal of Cancer Prevention
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    • 제13권4호
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    • pp.1675-1682
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    • 2012
  • Aim: The study aim was to determine the frequency with which women decline clinicians' treatment recommendations and variations in this frequency by age, cancer and service descriptors. Design: The study included 36,775 women diagnosed with early invasive breast cancer in 1998-2005 and attending Australian and New Zealand breast surgeons. Rate ratios for declining treatment were examined by descriptor, using bilateral and multiple logistic regression analyses. Proportional hazards regression was used in exploratory analyses of associations with breast cancer death. Results: 3.4% of women declined a recommended treatment of some type, ranging from 2.6% for women under 40 years to 5.8% for those aged 80 years or more, and with parallel increases by age presenting for declining radiotherapy (p<0.001) and axillary surgery (p=0.006). Multiple regression confirmed that common predictors of declining various treatments included low surgeon case load, treatment outside major city centres, and older age. Histological features suggesting a favourable prognosis were often predictive of declining various treatments, although reverse findings also applied with women with positive nodal status being more likely to decline a mastectomy and those with larger tumours more likely to decline chemotherapy. While survival analyses lacked statistical power due to small numbers, higher risks of breast cancer death were suggested, after adjusting for age and conventional clinical risk factors, (1) for women not receiving breast surgery for unstated reasons (RR=2.29; p<0.001); and (2) although not approaching statistical significance $p{\geq}0.200$), for women declining radiotherapy (RR=1.22), a systemic therapy (RR1.11), and more specifically, chemotherapy (RR=1.41). Conclusions: Women have the right to choose their treatments but reasons for declining recommendations require further study to ensure that choices are well informed and clinical outcomes are optimized.

Subtype Distribution of Blastocystis in Thai-Myanmar Border, Thailand

  • Popruk, Supaluk;Udonsom, Ruenruetai;Koompapong, Khuanchai;Mahittikorn, Aongart;Kusolsuk, Teera;Ruangsittichai, Jiraporn;Palasuwan, Attakorn
    • Parasites, Hosts and Diseases
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    • 제53권1호
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    • pp.13-19
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    • 2015
  • Blastocystis sp. is a common zoonotic intestinal protozoa which has been classified into 17 subtypes (STs). A cross-sectional study was conducted to determine the prevalence and subtype distribution of Blastocystis in villagers living on the Thai-Myanmar border, where the risk of parasitic infection is high. A total of 207 stool samples were collected and DNA was extracted. PCR and sequencing using primers targeting small-subunit ribosomal RNA (SSU rRNA) gene were performed. The prevalence of Blastocystis infection was 37.2% (77/207). ST3 (19.8%; 41/207) was the predominant subtype, followed by ST1 (11.6%; 24/207), ST2 (5.3%; 11/207), and ST4 (0.5%; 1/207). A phylogenetic tree was reconstructed using the maximum likelihood (ML) method based on the Hasegawa-Kishino-Yano + G + I model. The percentage of bootstrapped trees in which the associated taxa clustered together was relatively high. Some sequences of Blastocystis positive samples (TK18, 39, 46, 71, and 90) were closely related to animals (pig and cattle) indicating zoonotic risks. Therefore, proper health education in parasitic prevention for the villagers should be promoted to improve their personal hygiene. Further longitudinal studies are required to monitor the prevalence of parasitic infections after providing health education and to investigate Blastocystis ST in animals living in these villages.

CHEK2 1100delC Variant and Breast Cancer Risk in Caucasians: A Meta-analysis Based on 25 Studies with 29,154 Cases and 37,064 Controls

  • Yang, Yuan;Zhang, Fan;Wang, Yang;Liu, Sheng-Chun
    • Asian Pacific Journal of Cancer Prevention
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    • 제13권7호
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    • pp.3501-3505
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    • 2012
  • Links between the CHEK2 1100delC heterozygote and breast cancer risk have been extensively explored. However, both positive and negative associations with this variant have been reported in individual studies. For a detailed assessment of the CHEK2 1100delC heterozygote and breast cancer risk, relevant studies published as recently as May 2012 were identified using PUBMED and EMBASE and selected using a priori defined criteria. The strength of the relationship between the CHEK2 1100delC variant and breast cancer risks was assessed by odds ratios (ORs) under the fixed effects model. A total of 29,154 cases and 37,064 controls from 25 case-control studies were identified in this meta-analysis. The CHEK2 1100delC heterozygote was more frequently detected in cases than in controls (1.34% versus 0.44%). A significant association was found between CHEK2 1100delC heterozygote and breast cancer risk (OR=2.75, 95% CI: [2.25, 3.36]). The ORs and CIs were 2.33 (95% CI: [1.79, 3.05]), 3.72 (95% CI: [2.61, 5.31]) and 2.78 (95% CI: [2.28, 3.39]) respectively in unselected, family, early-onset breast cancer subgroups. The CHEK2 1100delC variant could be a potential factor for increased breast cancer risk in Caucasians. However, more consideration is needed in order to apply it to allele screening or other clinical work.