• 제목/요약/키워드: model organism

검색결과 239건 처리시간 0.027초

REGISTRATION OF MICROSCOPIC SECTION IMAGES BASED ON A RADIAL DISTORTION MODEL

  • Lee, Hoo-Sung;Yun, Il-Dong;Kim, Dong-Sik
    • 한국방송∙미디어공학회:학술대회논문집
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    • 한국방송공학회 2009년도 IWAIT
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    • pp.303-306
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    • 2009
  • Registration of microscopic section images from an organism is of importance in analyzing and understanding the function of an organism. Microscopes usually suffer from the radial distortion due to the spherical aberration. In this paper, a correction scheme for the intra-section registration is proposed. The correction scheme uses two corresponding feature points under the radial distortion model. Proposing several variations of the proposed scheme, we extensively conducted experiments for real microscopic images. Iterative versions of the correction from multiple feature points provide good performance for the registration of the optical and scanning electron microscopic images.

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온라인 플랫폼 경험: 호스피탈리티 고객 인게이지먼트 및 로열티 향상 방안 (Online Platform Experience: Enhancing Customer Engagement and Loyalty in the Hospitality Industry)

  • 김준형
    • 아태비즈니스연구
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    • 제8권2호
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    • pp.75-94
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    • 2017
  • This study aims to develop a conceptual framework linking antecedents and consequences of online platform experience in the context of hospitality businesses. In doing so, an introduction to online platform experience in the hospitality industry was made, and environmental stimuli, that is, enablers of online platform experience were identified: information, entertainment and relation. Additionally, the theoretical review attempted to explain how customers are likely to be engaged in, and to be loyal to, the hospitality organizations' provisions in the context of online platforms. When presenting the theoretical model, a Stimulus-Organism-Response paradigm was employed to propose the hypotheses predicting positive online platform experience, which seems to derive from internally provoked cognition and affection within individuals, leading to behavioral consequences. This model is expected to be applicable to the online context, where hospitality businesses tend to adopt the concept of gamification and to implement associated loyalty programs. Finally, theoretical and practical implications, along with potential avenues of future research, were discussed.

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퍼스널 모빌리티 사용의도에 관한 연구: SOR(Stimulus-Organism-Response) 모델을 중심으로 (A Study on the Intention to use Personal Mobility Services: Focused on the SOR(Stimulus-Organism-Response) Model)

  • 이원국;양희태
    • 경영정보학연구
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    • 제24권2호
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    • pp.67-88
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    • 2022
  • 본 연구는 SOR(Stimulus-Organism-Response) 모델을 기반으로 퍼스널 모빌리티의 성능적 측면과 외부 환경적 요인을 고려해 이용자들과 비이용자들의 사용 의도를 설명할 수 있는 연구 모형을 제안하였다. 국내 사용자들과 비사용자들을 대상으로 설문조사를 진행하였고 부분최소자승법(Partial Least Square, PLS)과 인공신경망 분석(Artificial Neural Network, ANN)을 통해 연구모형 및 가설들을 검증하였다. 분석결과, 사용자들은 지각된 만족도와 지각된 신뢰도가 사용 의도에 긍정적인 영향을 미치고, 지각된 위험성과 환경적 가치가 지각된 만족도와 지각된 신뢰도와 유의한 관계가 있음이 확인되었다. 반면, 비사용자들은 지각된 만족도와 사용의도 간에 양의 상관관계가 있음이 밝혀졌고, 사용자들과 마찬가지로 지각된 위험성과 환경적 가치가 지각된 만족도와 지각된 신뢰도의 유의한 선행변수임이 검증되었다. 나머지 변수들 중에서는 사용자들의 지각된 이동성과 비사용자들의 지각된 이용 용이성이 각각 지각된 만족도의 중요한 영향요인으로 파악되었다.

공연예술 서비스 실패에 따른 고객감정반응이 소비자 불평행동에 미치는 영향 (The Influence of Customer Emotional Response by Failure of Performing Arts Service on Consumer Complaint Behavior)

  • 권혁인;이지은;백보현
    • 한국콘텐츠학회논문지
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    • 제21권5호
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    • pp.182-199
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    • 2021
  • 본 연구는 공연예술의 서비스의 부정적 측면에 주목하여 연구를 설계하였다. 공연예술에 관심이 증가하면서 공연예술분야에서도 서비스에 대한 다양한 연구가 진행되고 있다. 그러나 현재 공연예술서비스의 긍정적인 측면에 대한 연구는 꾸준히 증가하고 있지만, 부정적인 측면의 연구는 부족하다. 본 연구에서는 기존 연구의 한계점을 보완하고 실증연구를 위해 Stimulus-Organism-Response (S-O-R) 모형을 적용하여 연구를 진행하였다. 자극 변수인 공연예술서비스 실패가 유기체인 부정적 감정을 매개로 불평행동반응에 미치는 영향을 검증하였다. 분석 결과, 공연예술서비스 실패 요인 중 공연작품과 인적 서비스가 부정적 감정에 유의한 영향을 미치는 것으로 나타났다. 또한 부정적 감정을 매개로 공적 불평행동과 사적 불평행동에 미치는 영향을 확인하였다. 마지막으로, 본 연구는 공연예술의 서비스 실패 요인을 변수화하여 소비자를 분석하였다는데 학문적 의의가 있을 것이다.

Effects of Microgravity and Hypergravity on Aging end Longevity of Insects

  • Kim, Hak-Ryul
    • Animal cells and systems
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    • 제4권3호
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    • pp.231-237
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    • 2000
  • The effects of microgravity and hypergravity on aging are still poorly documented, particularly in mammals. However, there is a growing interest for the use of the fruit fly, Drosophila melanogaster, and this species may be now considered as a model organism in gravitational biology studies dealing with aging.

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B2C 트위터를 통한 고객참여행위가 기업충성도에 미치는 영향 (The Effect of Customer Participation Behavior on Brand Loyalty via B2C Microblogging)

  • 박종필
    • 한국경영과학회지
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    • 제38권1호
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    • pp.69-87
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    • 2013
  • Recently a large number of people have been using social networking and microblogging services such as Facebook and Twitter. These mediums play a pivotal communication channel in a business-to-customer (B2C) relationship. Given its importance in today's business, companies have invested in the strategic application of social network services to reach out to customers. This study provides a blueprint for mechanisms for successful execution of social network services in the context of developing an effective B2C relationship, such as customer participation behavior. The S-O-R(Stimulus-Organism-Response) framework lays out the foundation for developing our research model and provides a structured view for understanding customer participation behavior on brand loyalty. For the methodology, this study employed a mixed-method approach. Additionally, in order to provide empirical evidences, a total of 121 respondents have completed the survey. All the data were compiled and analyzed through structural equation modeling and were implemented in partial least square (PLS). To sum up, this study presented theoretical and practical implications by providing the effect of customer participation behavior on brand loyalty through B2C microblogging.

Changes in Caenorhabditis elegans Exposed to Vibrio parahaemolyticus

  • Durai, Sellegounder;Pandian, Shunmugiah Karutha;Balamurugan, Krishnaswamy
    • Journal of Microbiology and Biotechnology
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    • 제21권10호
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    • pp.1026-1035
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    • 2011
  • Vibrio parahaemolyticus, which owes its origin to the marine environment, is considered as one of the most common causes of infectious diarrhea worldwide. The present study investigated the pathogenicity of V. parahaemolyticus against the model organism, Caenorhabditis elegans. Infection in the host was localized with GFP-tagged V. parahaemolyticus using confocal laser scanning microscopy. The times required for causing infection, bacterial load in intestine, chemotactic response, and alteration in pharyngeal pumping were analyzed in the host system. In addition, the regulation of innate immune-related genes, lys-7, clec- 60, and clec-87, was analyzed using real-time PCR. The role of immune-responsible pmk-1 was studied using mutant strains. The pathogenicity of environmental strain CM2 isolated from the Gulf of Mannar, India was compared with that of a reference strain obtained from ATCC. The pathogen infected animals appeared to ward off infection by up-regulating candidate antimicrobial genes for a few hours after the exposure, before succumbing to the pathogen. For the first time, the pathogenicity of V. parahaemolyticus at both the physiological and molecular levels has been studied in detail using the model organism C. elegans.

Generation of mmp15b Zebrafish Mutant to Investigate Liver Diseases

  • Kim, Oc-Hee;An, Hye Suck;Choi, Tae-Young
    • 한국발생생물학회지:발생과생식
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    • 제23권4호
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    • pp.385-390
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    • 2019
  • Upon gene inactivation in animal models, the zebrafish (Danio rerio) has become a useful model organism for many reasons, including the fact that it is amenable to various forms of genetic manipulation. Genome editing is a type of genetic engineering in which DNA is inserted, deleted, modified, or replaced in the genome of a living organism. Mainly, CRISPR (clustered regularly interspaced short palindromic repeats) Cas9 (CRISPR-associated protein 9) is a technology that enables geneticists to edit parts of the genome. In this study, we utilized this technology to generate an mmp15b mutant by using zebrafish as an animal model. MMP15 is the membrane-type MMP (MT-MMP) which is a recently identified matrix metalloproteinase (MMP) capable of degrading all kinds of extracellular matrix proteins as well as numerous bioactive molecules. Although the newly-established mmp15b zebrafish mutant didn't exhibit morphological phenotypes in the developing embryos, it might be further utilized to understand the role of MMP15 in liver-related diseases, such as liver fibrosis, and associated pathogeneses in humans.

The Antecedents Of Brand Love Toward Natural Products: An Approach of S.O.R Theory

  • NGUYEN, Le Thai Hoa;NGUYEN, Hoang Anh
    • Asian Journal of Business Environment
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    • 제12권2호
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    • pp.13-28
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    • 2022
  • Purpose: Natural products are becoming gradually popular because of their health - related benefits and consumers' environmental awareness. However, research in this field remains limited, the present study attempts to address this research gap by measuring the influencing levels of the antecedents on natural product brand love. Research design, data and methodology: The study employs S-O-R (Stimulus - Organism - Response) framework together with Innovation Resistance Theory and Dual-Factor Theory to propose the research model, in which health and environmental stimuli influence both of facilitators and inhibitors of internal states or organism, and then shape purchase intention and brand love as consumers' responses. The mixed research method is designed with the application of structural equation model (SEM) to analyze 530 consumers collected by convenience sampling. Results: The results revealed that two chosen stimuli, including health awareness and environmental concern were positively related to both facilitators (natural content and regional products) and inhibitors (image barrier and usage barrier) and these four factors were significantly associated to purchase intention and brand love. Furthermore, purchase intention played the mediating role on the relationship between the four organisms and brand love. Conclusions: The originality of this paper is extend S-O-R theory into natural product context with mediating effects in an emerging economy. The findings make theoretical contribution on consumer behavior and managerial implication.