• 제목/요약/키워드: current status of resistance

검색결과 106건 처리시간 0.024초

The effect of switching costs on resistance to change in the use of software

  • Perera, Nipuna;Kim, Hee-Woong
    • 한국경영정보학회:학술대회논문집
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    • 한국경영정보학회 2007년도 International Conference
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    • pp.539-544
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    • 2007
  • People tend to resist changing their software even alternatives are better then the current one. This study examines the resistance to change in the use of software from the switching costs perspective based on status quo bias theory. For this study, we select Web Browsers as software. Based on the classification of switching costs into three groups (psychological, procedural, and loss), this study identifies six types of switching costs (uncertainty, commitment, learning, setup, lost performance, and sunk costs). This study tests the effects of six switching costs on user resistance to change based on the survey of 204 web browser users. The results indicate that lost performance costs and emotional costs have significant effects on user resistance to change. This research contributes towards understanding of switching costs and the effects on user resistance to change. This study also offers suggestions to software vendors for retaining their users and to organizations for managing user resistance in switching and adopting software.

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Molecular Breeding for Plant Disease Resistance : Prospects and Problems

  • Park, Hyo-Guen
    • The Plant Pathology Journal
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    • 제17권1호
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    • pp.1-8
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    • 2001
  • The technique of plant transformation has started to show off its great power in the area of plant breeding by commercially successful introduction of transgenic varieties such as herbicide tolerant soybean and insect resistant corn in USA with an unimaginable speed. However, in contrast with the great success in the commercialization of herbicide tolerance and insect resistance, the transformation works on disease resistance has not yet reached the stage of full commercialization. This review surveys the current status of molecular breeding for plant disease resistance and their limits and problems. Some novel ideas and approaches in molecular breeding for disease resistance are introduced.

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한국해양조건에서의 시멘트 종류별 콘크리트 내구 특성 (Current Status of the Durability Study of Concrete Made with Various Cements in Korean Marine Environment)

  • 박춘근;엄태형;정해문;임정렬;지정식
    • 한국콘크리트학회:학술대회논문집
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    • 한국콘크리트학회 1997년도 봄 학술발표회 논문집
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    • pp.163-169
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    • 1997
  • The sea water resistance of cement and concrete must be considered when it is used for construction on the seashore of in the ocean. The concrete specimens using seven type of cements such as ordinary Portland cement, moderate heat Portland cement, sulfate resistance Portland cement, type A. B. C Portland blastfurnace slag cement and Portland flyash cement were immersed for 10 years in seawater in Kunsan. This study proved that moderate heat Portland cement, sulfate resistance Portland cement, type A Portland blastfurnace slag cement had higher resistance for seawater.

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국내 모듈러 건축의 내화구조 제도 현황 및 활성화 방안 (Fire Resistant Regulation Status and Activation Plan of Domestic Modular Construction)

  • 최윤정;안재홍
    • 한국건축시공학회지
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    • 제22권6호
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    • pp.673-680
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    • 2022
  • 모듈러 건축은 시공 기간의 단축, 건축비용 절감 등의 여러 가지 장점에도 불구하고 국내 건설시장에서 좀처럼 탄력을 받지 못하고 있다. 이러한 원인에는 모듈러 내화 기술 적용의 한계도 있으나 무엇보다 내화구조 제도에 대한 접근성이 쉽지 않은 것이 주요 요인으로 간주되고 있다. 따라서 모듈러 건축 활성화를 위해 주요 저해요인인 내화구조 제도 현황과 문제점에 대해 고찰하였으며, 내화구조 제도적 개선 및 연구개발 방향에 대해 제시하고자 한다.

폐렴원인균으로서 약제내성 폐렴사슬알균 ($Drug-resistant$ $Streptococcus$ $pneumoniae$)의 현황과 임상적 의미 (Clinical Implications of Drug-Resistant $Streptococcus$ $pneumoniae$ as a Cause of Community Acquired Pneumonia)

  • 신경철
    • Journal of Yeungnam Medical Science
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    • 제28권1호
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    • pp.13-19
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    • 2011
  • The emergence of antibiotic-resistant pathogens is a Serious clinical problem in the treatment of infectious diseases that increase mortality, morbidity, hospitalization length, and the cost of healthcare. In particular, $Streptococcus$ $pneumoniae$ is a major etiologic pathogen of pneumonia, sinusitis, otitis media, and meningitis. As the definition of penicillin resistance to $S.$ $pneumoniae$ was recently changed, macrolide-resistant $S.$ $pneumoniae$ is a major resistant pathogen in the community. Infections caused by antibiotic-resistant strains are associated with incorrect use of antibiotics and critical clinical outcomes. For the appropriate use of antibiotics to treat infections, physicians always should have up-to-date information on the current epidemiologic status of antibiotic resistance for common pathogens and their susceptibility to antimicrobials. Appropriate selection of antimicrobials, strict control of infection, vaccination, and development of a feasible national policy of infection control are important strategies for the control of antimicrobial resistance. This review article focuses on the current status of antibiotic-resistant $S.$ $pneumoniae$ in community-acquired pneumonia in Korea.

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Molecular Mechanisms of Succinate Dehydrogenase Inhibitor Resistance in Phytopathogenic Fungi

  • Sang, Hyunkyu;Lee, Hyang Burm
    • 식물병연구
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    • 제26권1호
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    • pp.1-7
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    • 2020
  • The succinate dehydrogenase inhibitor (SDHI) is a class of fungicides, which is widely and rapidly used to manage fungal pathogens in the agriculture field. Currently, fungicide resistance to SDHIs has been developed in many different plant pathogenic fungi, causing diseases on crops, fruits, vegetables, and turf. Understanding the molecular mechanisms of fungicide resistance is important for effective prevention and resistance management strategies. Two different mechanisms have currently been known in SDHI resistance. The SDHI target genes, SdhB, SdhC, and SdhD, mutation(s) confer resistance to SDHIs. In addition, overexpression of ABC transporters is involved in reduced sensitivity to SDHI fungicides. In this review, the current status of SDHI resistance mechanisms in phytopathogenic fungi is discussed.

Current Status of Antimicrobial Resistance in Korea

  • Chong, Yun-Sop
    • 대한미생물학회지
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    • 제35권5_6호
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    • pp.337-339
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    • 2000
  • MRSA, erythromycin-resistant S. pyogenes, penicillin non-susceptible pneumococci, PPNG, ESBL-producing E. coli and K. pneumoniae, class C ${\beta}$-lactamase-producing E. coli, fluoroquinolone-resistant E. coli, aminoglycoside-resistant A. baumannii and P. aeruginosa are all prevalent in Korea, which suggest the presence of high levels of antimicrobial selective pressure and nosocomial spread of resistant bacteria. Rapid increase of VRE and emergence of fluoroquinolone-resistant gonococci and VIM-2 metallo-${\beta}$-lactamase-producing P. aeruginosa are recently observed new threats in Korea.

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