• 제목/요약/키워드: Multiplex

검색결과 917건 처리시간 0.032초

소의 임상병리 가검물에서 Mycobacterium species 감별진단을 위한 multiplex PCR 기법 (Multiplex PCR for differential diagnosis of Mycobacterium species from bovine clinical samples)

  • 김용환;;조호성;강성귀;조경오;박형선;이봉주;박남용
    • 대한수의학회지
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    • 제41권4호
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    • pp.535-542
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    • 2001
  • A multiplex PCR technique was developed for detecting specifically each Mycobacterium bovis, M. tuberculosis, M. avium and M. avium subsp, paratuberculosis, respectively, using clinical samples of field cattle. To apply this novel technique to clinical specimens, blood sample was obtained from live cows comprising 11 intradermal tuberculin test (ITT)-positive and 17 ITT-negative and tested by multiplex PCR. Positive results were obtained from 15 cows by the multiplex PCR, showing that 4 (23.5%) of the 17 ITT-negative cows were multiplex PCR positive. The multiplex PCR results also showed that among the 15 positive cows, 7 (46.7%) were infected with M. bovis, 1 (6.7%) with M. tuberculosis and 7 (46.7%) with M. avium. The sensitivity and specificity of multiplex PCR in comparison with those of ITT were 100% and 76.5%. The correlation between the multiplex PCR and ITT assays with blood samples was considered excellent, 85.7% agreement and ${\kappa}=0.72$. The results obtained, using reference mycobacterial strains and typed clinical samples, show that the multiplex PCR method may be a rapid, sensitive, and specific tool for the differential identification of various mycobacterial strains in a single-step assay. Therefore, multiplex PCR assay is a useful tool for early diagnosis of tuberculosis in live cattle and to identify the species or complex of mycobacterium from clinical samples.

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까치버섯(Polyozellus multiplex) 추출물의 항산화 및 항암효과 (Antioxidation and Anticancer Effects of Polyozellus multiplex)

  • 한정;이인선
    • 한국균학회지
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    • 제28권1호
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    • pp.55-59
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    • 2000
  • 까치버섯(Polyozellus multiplex) 메탄올 추출물과 물 추출물은 산화 유발물질인 $H_2O_2$에 대하여 메탄올 추출물과 물 추출물에서 각각 53.5%, 29.4%의 생존율을 보여 까치버섯 추출물의 항산화 효과를 확인하였다. 까치버섯 메탄올 추출물과 물 추출물을 이용하여 동물에 강력한 발암물질인 MHNG를 투여한 후 항산화 효소계를 측정한 결과, 물 추출물은 항산화효소인 glutathione S-transferase(GST)와 superoxide dismutase(SOD) 활성과 조직내의 해독물질인 glutathione(GSH)의 함량을 높여 주었다. 또한 0.5%의 까치버섯 물 추출물은 암억제 유전자인 p53회 발현을 매우 증가시켰다. 이상의 결과로 까치버섯(Polyozellus multiplex)은 항산화 능이 있으며 특히, 물 추출물은 체내의 항산화 효소를 활성화시키고 항산화 물질의 함량을 높여주었고 암 억제유전자인 p53의 발현을 증가시켜 항암효과가 있음을 보여주었다.

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u-멀티플렉스 서비스의 한계와 개선방안에 관한 연구 (A Study on Improving Services of u-Multiplex)

  • 김현수;이강배;정재운
    • 한국시스템다이내믹스연구
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    • 제10권2호
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    • pp.5-27
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    • 2009
  • Multiplex is a representative culture facility of citizens. Therefore, a lot of researches and investment on multiplex are carried out to improve benefits of service suppliers and users. Especially, focused on main services of a theatre such as ticket booking and issuing within multiplex, examination of tickets, admission information of movie screens and screening information inquiry, improvement activities are carried out. However, it is not enough to evaluate on what efficiency the above efforts have in the viewpoint of customer benefits and business. Therefore, this study analyzed value and limit of the newest service of multiplex applying the existing ubiquitous concept(u-multiplex service), and proposed a model and a plan for improving the existing services. The study interviewed with specialists in the related field and applied workshop-shape group interview to 110 university students and simulated service models. The contribution of the study is to analyze the value and limit of the existing multiplex service objectively, and to propose a new service model and plan to improve its limitation. In the future, the study plans to research on service models by extending space and functional roles of multiplex to the whole subsidiary facilities including movie screens.

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Investigating the Determinants of Online Consumer Engagement on Multiplex Social Network Sites: A Value Exchange Perspective

  • Zhu, Zong-Yi;Kim, Hyeon-Cheol
    • Journal of Information Technology Applications and Management
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    • 제26권6호
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    • pp.139-157
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    • 2019
  • This study is intended for demonstrating the impacts of different factors on the formation of online consumer engagement behavior of young Chinese moviegoer in Korea. Based on Value-Exchange Model [Itani et al., 2019], we build research model to reveal the relationships among perceived enjoyment, perceived movie information value, multiplex-audience relationship quality, multiplex usage satisfaction, and online consumer engagement through experiments on valid data we collected from 186 participants who had lived in Korea and experienced the multiplex pages of top 3 movie theaters, where Smart PLS 3.0 is the tool used for statistical analysis. The experimental results show that both perceived enjoyment and perceived movie information value positively correlate to multiplex-audience relationship quality, and multiplex audience relationship quality significantly influences multiplex usage satisfaction and online consumer engagement. In addition, it is found that relationship quality plays the role of mediator between perceived enjoyment and satisfaction. The findings from this study offer both academic and managerial implications for movie distributors who are interested in developing potential Chinese consumer market in Korea.

Multiplex RT-PCR 기법을 이용한 소의 로타바이러스, 코로나바이러스 및 설사병바이러스의 동시진단 (A Study on Simultanious Detection of Bovine Rotavirus, Coronavirus and Virai Diarrhea virus by Multiplex RT-PCR)

  • 노환국;이장형
    • 현장농수산연구지
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    • 제5권1호
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    • pp.57-63
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    • 2003
  • The bovine rotavirus(BRV), bovine coronavirus(BCV) and bovine viral diarrhea virus(BVDV) are main viruses of bovine viral diarrhea disease. These viruses could be rapidly amplified by the reverse transcriptase polymerase chain reaction(RT-PCR). This study was conducted to develop rapid and accurate diagnostic methods of these viral diseases by multiplex RT-PCR. Specific primers were designed based on the sequences reported by Chang KO et. al. (1997) and Schroeder BA, et. al. (1990), RNA were prepared from the cultured viruses, first-stranded DNAs were synthesised by reverse transcriptase. PCR were conducted to amplify specific regions of the viruses by multiplex. Three bands such as 1,062bp for BRV, 458bp for BCV, and 300bp for BVDV were successfully produced by multiplex RT-PCR. In conclusion, this result suggested that these viruses could be diagnosed rapidly and accurately by multiplex RT-PCR.

관람객 행동 특성에 따른 멀티플렉스 피난시설 개선방안 연구 (A Study on the multiplex refuge facility according to visiter's behavior characteristics)

  • 조영준;김택우;김영진
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2005년도 추계 학술논문 발표대회
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    • pp.187-190
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    • 2005
  • By the rapid technological advance and social needs, demand of Multi Function Facility is on the increase. The multiplex is an alternative of them. In case of fire, special function of facility nay result in terrible accident. Therefore, literature and regulations survey on the multiplex were enforced, Multiplex facilities in Daejeon City were surveyed, and reformation of regulation and structural system were suggested in this study.

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Multiplex PCR 분석을 통한 건강한 20대 여성의 질 내에 서식하는 Lactobacillus 속 유산균의 신속한 검출 (Rapid Detection of Lactobacillus Genus Inhabiting in Vagina of 20's Healthy Women Using Multiplex PCR)

  • 오초롱;조홍범
    • 미생물학회지
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    • 제48권4호
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    • pp.309-313
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    • 2012
  • 본 연구는 multiplex PCR 방법을 적용하여 질 내부에 서식하는 유산균을 동시에 그리고 신속하게 검출하는 방법을 개발하는 것을 목적으로 수행되었다. 세균의 감염에 의한 질염 증상이 없는 건강한 20대 여성 166명으로부터 질 분비물을 채취하였다. 건강한 여성의 질 내부에 서식하는 것으로 확인된 Lactobacillus 속에 속하는 6종의 유산균을 종 특이 multiplex PCR primer를 제작하기 위해 선정하였다. Multiplex primer I은 L. iners, L. crispatus, L. gasseri를 선택적으로 검출하기 위해 특성화하였고 multiplex primer II는 L. acidophilus, L. jensenii, L. fermentum를 선택적으로 검출하기 위해 특성화하였다. Multiplex PCR 기술을 이용하여 분석한 결과 L. crispatus (77%)가 가장 높은 빈도로 검출되었고 L. acidophilus (57%)과 L. jensenii (57%)는 상대적으로 높은 빈도로 검출되었다. L. iners (59%)는 L. acidophilus (57%)와 L. jensenii (57%) 보다 높은 빈도로 검출되었지만 항생제 치료 과정 후 또는 세균성 질염의 경우에도 발견되는 균종으로 건강한 여성에게서 주로 서식하는 종이라고 결론 내리기는 어렵다. 결론적으로, 특정 유산균의 특이적인 primer를 이용한 multiplex PCR 기술은 질의 건강상태의 변화 또는 질의 질병으로부터 회복 과정을 예측할 수 있는 도구로서 유용할 것으로 생각된다.

Simultaneous Detection of Listeria monocytogenes, Escherichia coli O157:H7, Bacillus cereus, Salmonella spp., and Staphylococcus aureus in Low-fatted Milk by Multiplex PCR

  • Kim, Ji-Hyun;Rhim, Seong-Ryul;Kim, Kee-Tae;Paik, Hyun-Dong;Lee, Joo-Yeon
    • 한국축산식품학회지
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    • 제34권5호
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    • pp.717-723
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    • 2014
  • A rapid and specific PCR assay for the simultaneous detection of Listeria monocytogenes, Escherichia coli O157:H7, Bacillus cereus, Salmonella spp., and Staphylococcus aureus in foods was developed to reduce the detection time and to increase sensitivity. Multiplex PCR developed in this study produced only actA, fliC, hbl, invA, ileS amplicons, but did not produce any non-specific amplicon. The primer sets successfully amplified the target genes in the multiplex PCR without any non-specific or additional bands on the other strains. The multiplex PCR assays also amplified some target genes from five pathogens, and multiplex amplification was obtained from as little as 1 pg of DNA. According to the results from the sensitivity evaluation, the multiplex PCR developed in this study detected 10 cells/mL of the pathogens inoculated in milk samples, respectively. The results suggested that multiplex PCR was an effective assay demonstrating high specificity for the simultaneous detection of five target pathogens in food system.

Listeria monocytogenes의 신속검출을 위한 선택배지 및 multiplex PCR 기법 개발 (Development of Differential Media and Multiplex PCR Assays for the Rapid Detection of Listeria monocytogenes)

  • 정병열;임현숙;정석찬
    • 대한수의학회지
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    • 제43권2호
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    • pp.231-237
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    • 2003
  • Listeria (L.) monocytogenes in samples could not be detected occasioally by faster growth of other Listeria spp. especially L. innocua. The aim of this study was to develop the differential media and multiplex polymerase chain reaction (PCR) assays for the rapid detection of L. monocytogenes. L. monocytogenes colonies were characterized by their ${\beta}$-hemolysis with fluorescence under 366 nm UV light on the Listeria hemolysis agar (LHA). L. innocua, a species commonly present in foods, did not produce ${\beta}$-hemolysis on LHA. Therefore, one or more colonies of L. monocytogenes were easily distinguished from large populations of L. innocua. The multiplex PCR assays were developed to distinguish from L. monocytogenes and other Listeria spp. with two pairs of primers. The primers were designed in 16S rRNA and listeriolysin O gene for specific amplification of all members of the genus Listeria and L. monocytogenes, respectively. The multiplex PCR assays produced 560 and 938 bp products in L. monocytogenes; only 938 bp products in the genus Listeria. The multiplex PCR assays could detect as little as 50 pg of L monocytogenes DNA. These results indicated that the differential media and multiplex PCR assays might be useful diagnostic tools for the rapid detection of L. monocytogenes.

컨테이너 복합문화공간에 나타난 컨테이너 건축특성과 이용자 만족도 (Characteristics of Container Architecture Shown in Container Multiplex Cultural Space and User Satisfaction)

  • 김현진;한혜련
    • 한국실내디자인학회논문집
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    • 제27권1호
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    • pp.39-47
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    • 2018
  • This study is intended to suggest an improvement scheme of activating container multiplex cultural space through an analysis of container architecture characteristics and a survey of user satisfaction, focusing on container multiplex cultural space located in Seoul city. Hence, the elements of multiplex cultural space and the characteristics of container architecture were deduced and analyzed through precedent study and literature review relating to multiplex cultural space and container architecture, and then an analysis framework was established with items to measure the user satisfaction. Based on this, a questionnaire was created, and users were surveyed through on-site visit. The results of analyzing the container multiplex cultural space users' satisfaction are as follows. First, in order to increase user satisfaction, it is necessary to highlight visual element. Second, there is necessity for distinct space configuration, such as connection, stack and extension by utilizing the fixed specifications, the characteristics of container. Third, there is necessity for extended space where people feel a sense of openness. Fourth, it should be improved so that air is well circulated by installing glass, operable window, etc. In further research, it is thought necessary to make a study of commercial space and facilities inside university besides multiplex cultural space.