• Title/Summary/Keyword: Leader-following

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Expression of gus and gfp Genes in Ggrlic (Allium sativum L.) Cells Following Particle Bombardment Transformation

  • Lacorte, Cristiano;Barros, Daniella
    • Journal of Plant Biotechnology
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    • v.2 no.3
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    • pp.135-142
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    • 2000
  • The activity of promoter sequences was evaluated in garlic cells using the $\beta$-glucuronidase (GUS) gene as a reporter. Histochemical GUS assay indicated transient GUS activity in leaf, callus and root cells 48 hours after particle bombardment transformation. Quantitative fluorometric assays in extracts of transformed leaves demonstrated that the CsVMV promoter induced the highest level of gene expression, which was, on average, ten fold the level induced by CaMV35S and by the Arabidopsis Act2 promoters and two fold the level expression observed with a construct containing a double CaMV35S plus the untranslated leader sequence from AMV. No activity or very low levels were observed when cells were transformed with plasmids rontaining the typical monocot promoters, Actl, from rice or the Ubi-1, from maize. The green fluorescent protein (GFP) was also tested as a marker gene for garlic transformation. Intense fluorescence was observed in leaf, callus and root cells transformed with a construct containing the gfp gene under control of the CaMV35 Promoter. No fluorescence was detected when the gfp was under control of the Ubi-1 promoter.

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Strategic Analysis of the Competition between Internet Seller and Conventional Retailer Selling Single Commodity (단일 상품을 판매하는 인터넷 상점과 전통적인 소매점 간의 경쟁에 대한 전략적 분석)

  • Cho, Hyung-Rae;Kwon, Hyo-Seok;Cha, Chun-Nam
    • Journal of Korean Institute of Industrial Engineers
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    • v.31 no.4
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    • pp.277-288
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    • 2005
  • The proliferation of the internet technologies and applications has intensified business activities on the Internet. This study considered the price competition between two shopping channels, one on-line seller and the other traditional off-line retailer. Based on the Hotelling's linear market model, we derive the Nash and Stackelberg equilibria as a function of the cost parameters which represent the characteristics of the online and off-line channels. By analyzing the equilibrium solutions, the following significant findings were obtained. First, pricing by Stackelberg equilibrium always outperformed that of Nash equilibrium. However the value of the cost parameters played a crucial role in determining both channels' preferred position (price leader or follower). Second, the online seller could benefit more in terms of profit by lowering its efficiency when its efficiency belongs to a certain interval. Third, when the online seller's efficiency is low, lowering its delivery cost has no contribution to its profit. To benefit more from lowering its delivery cost, increasing its channel efficiency to a certain level should be preceded.

The Impact of the United States Fashion on Korean Fashion in 20th Century

  • Oh, Keunyoung;Choi, Jeongwook
    • Journal of Fashion Business
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    • v.21 no.3
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    • pp.80-92
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    • 2017
  • Fashion trend is more than a social phenomenon that multitudes of people accept as popular styles of clothing. The purpose of this study was to understand the influence of fashion trend over time and distance. Geographically thousands of miles apart, the U.S. has strongly influenced fashion in Korea, revealed by references and historic depictions collected from literature and web sites. Results of the study are summarized as five issues: First, emergence of female missionaries from the U.S. American missionaries working in the late Great Korean Empire performed a significant role importing Western culture to Korea. Second, as opportunities of education increased, women studying abroad introduced Western fashion to Koreans when they returned to Korea. They were more open to Western culture than other Koreans and moderately harmonized their Korean sentiment and Western culture, mitigating cultural shock and enabled other Koreans to accept Western culture. Third, the effect of fashionistas on media. Singers working for U.S. armies stationed in Korea and movie stars appearing in Hollywood movies profoundly affected Korean pop culture and fashion trends in Korea. Fourth, following First Lady Jacqueline Kennedy of the U.S. She was an influential figure in those days and a fashion leader as well. Lastly, acceptance of working girl fashion depicted in American television shows. American working girls depicted on American TV shows were highly admired by young Korean women, so the fashion of American working girls became a major fad among young Korean women.

Developing Living and Managing Guidelines for the Sustainability of Back-to-Farm Community Village (귀촌형 공동체마을 지속성을 위한 생활 및 관리 가이드라인 개발)

  • Park, Kyoung-Ok;Lee, Sang-Un
    • Journal of the Korean Institute of Rural Architecture
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    • v.20 no.2
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    • pp.1-9
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    • 2018
  • The purpose of this study was to develop guidelines for sustainability of back-to-farm community village in 4 aspects; social environment, maintenance and management, regional environment, and economic environment. These 4 aspects, which count for sustainability, based on the comprehensive comparative analysis about items that field survey and literature suggested. Conclusions of guideline are of the following. The guidelines on social environment are developed by 3 items; resident participation and activity, village leader, decision making in village and person in charge of operation. The guidelines on maintenance and management are developed by 5 items; village operation system, village regulation, transparency of management, village operation expenses, and management type. The guidelines on regional environment are developed by 2 items; support by central and local government, and area projects and connection to regional resources. The guideline on economic environment is not developed due to low demands of based production facilities and income increase facilities.

An Approach on the Scheme Interactive of Electronic Trade Payment System Type (전자무역결제 유형의 제도적 상호관계성에 따른 접근방안)

  • Lee, Je-Hong
    • International Commerce and Information Review
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    • v.9 no.1
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    • pp.149-168
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    • 2007
  • e-Trade Payment system has been transformed by quickly and effectively. The e-trade Payment system such as TradeCard System, Bolero Surf, Identrus Eleanor and e-Escrow and e-letter of Credit issued by SWIFT System enable partly sellers, buyers and service providers. This paper studies for SWIFT, Surf, TradeCard, Eleanor, e-Escrow as international trade payment, As reason following : The First, Bolero is a neutral secure platform enabling paperless trading between exporter, importer, and their logistics service and bank partners, insurance company. The Second, TradeCard is to manage procurement-to-payment worldwide, that is exporter, importer and connected partners, paperless platform. The Third, Identrus is the global leader in trusted identity solutions, recognized by global financial institutions, commercial organizations and bank partners around the world. The Forth, Escrow payment have effect to L/C issue and enter into electronic contracts in internet bank. Trader practice use Escrow Bank as the same bank that rules to Issuing Bank and Advising Bank and payment, acceptance. This paper of these electronic payment have studies new international trade payment to approach such as eUCP rules and TradeCard System, Surf of bolero, eleanor of Identrus, SWIFT.

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Reciprocal Effect of the Factors Influencing the Satisfaction of IS Users (정보시스템의 사용자 만족에 영향을 주는 요인의 상호작용효과)

  • Jeong, Gi-Eok;Lee, Dong-Man
    • Asia pacific journal of information systems
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    • v.5 no.2
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    • pp.199-226
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    • 1995
  • This study is an empirical research in order to clarify whether or not the correlation between the satisfaction of users that is the performance measurement factor and the following three:(1) the attitude of users as an individual characteristic, (2) the supports of organization as an organizational characteristic, (3) the routine degree of jobs as an job characteristic, is the same as the previous study results. In addition, another empirical research was done to make clear how organizational supports and routine degree change the attitude and satisfaction of users. This study put a particular emphasis on the moderating effect because the study of this issue has not been done in any previous research. 38 corporations, whose computerization has already been made to some extent and who are listed on the stock exchange market as a leader group, was selected for research, given some hypotheses on the basis of theoretical studies. As results of this empirical study, first, the supports of organization and the routine degree of jobs changed the attitude of users, which was the same as the previous studies. Moreover, the supports of organization, the routine degree of jobs and the attitude of users had an influence on the satisfaction of users. Second, in respect of the correlation between the attitude of users and the satisfaction of users, the routine degree of jobs showed a moderating effect, but the organization supports did not show any moderating effect.

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Formation Control of a Group of Underactuated Autonomous Underwater Vehicles (작동기수가 부족한 자율무인잠수정 그룹의 편대제어기법)

  • Li, Ji-Hong;Jun, Bong-Huan;Lee, Pan-Mook;Lim, Yong-Kon
    • Journal of Institute of Control, Robotics and Systems
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    • v.14 no.12
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    • pp.1197-1204
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    • 2008
  • This paper presents an asymptotic formation control scheme for a group of underactuated autonomous underwater vehicles (AUVs) where only three control inputs - surge force, yaw moment and pitch moment are available for each vehicle's six degree of freedom (DOF) underwater motion. Usually, the dynamics agents applied in most of the formation algorithms presented so far have been modeled as particle systems, which is a simple double-integrator system. Therefore, these algorithms cannot be directly applicable to the practical systems, especially to the underwater vehicles whose dynamics are highly nonlinear. Moreover, the vehicles considered in this paper are underactuated. The formation control is derived using general potential function method, and the corresponding potential function consists of two parts: interactions between vehicles and virtual-leader following. Proposed formation scheme guarantees asymptotic local stability of closed-loop system. Numerical simulations are carried out to illustrate the effectiveness of proposed formation scheme.

A study on collection development model for university libraries in Korea based on subject a n.0, pproach (주제접근법에 의한 대학도서관 장서개발 모형연구)

  • 김정근
    • Journal of Korean Library and Information Science Society
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    • v.23
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    • pp.285-328
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    • 1995
  • This study is an attempt at developing an organizational model for collection development a n.0, pplicable to Korean university libraries at their present stage of development. An emphasis is placed on the discussion of the 'subject a n.0, pproach' as compared to 'functional a n.0, pproach' in collection development work. The case history of Pusan National University Library is extensively used. The proposed collection development model consists of the following elements : - To form a collection development team and to place under the team leader subject bibliographers as follows: Bibliographer for Serials Bibliographer for Humanities Bibliographer for Social Sciences Bibliographer for Sciences and Technologies - Collection development team could operate as a separate department or as part of other departments, i. e., Deputy Director's office, Acquisitions and Processing Department, or Resources Management Department. - Collection development team takes up the responsibility for policyrelated collection work, i. e., budget allocation, evaluation of existing collection, building core collection, preservation, weeding and cooperation. - Designated certified librarians located at the(planned) subject libraries take up the responsibility for selection. Subject bibliographers cooperate with selection librarians and coordinate their work. - Certified librarians at the Acquisitions and Processing Department are assigned subject areas. They operate as acquisitions librarian and processing librarian simultaneously with their assigned subject materials.

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A Study on Fashion Lifestyle and Color Interests in Accordance with Group University Students' Lifestyle (Focused on Students in Health and Nursing Fields) (대학생들의 집단별 라이프 스타일에 따른 패션라이프스타일 및 컬러 관심도 (간호, 보건계열 학생들을 중심으로))

  • Heo, Nam-Moon;Choi, Sung-Suk
    • Journal of Korean Clinical Health Science
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    • v.4 no.2
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    • pp.556-565
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    • 2016
  • Purpose. This study pourpose to fashion lifestyle and color interests in accordance with group university students' lifestyle focused on students in health and nursing fields. Methods. This study administered a structured questionnaire to 321 random subjects who currently major in health and nursing fields and who reside in Daegu city. For the collected data, using the SPSS 18.0, the following analyses were implemented: frequency analysis, factor analysis, K-means clustering analysis, t-test, and ${\chi}^2$-test. Result. In terms of lifestyle, seniors had shown more active groups than passive groups in comparison to their juniors. The active group in terms of lifestyle has shown higher interest in the importance of apparel and fashion leadership in comparison to the passive group. The active group in terms of lifestyle has also shown higher interest in color in comparison to the passive group. Conclusion. A fashion leader leading by examining the fashion life style and color interest in accordance with the lifestyle to target college students to investigate a variety of consumption patterns made according to personal preference consists of a smooth communication between businesses and consumers needed for product development.

The Effects of Jigsaw II Expert Groupings on Studentis Knowledge, Inquiry Ability and Attitudes at Elementary School Science Study (전문가집단을 활용한 Jigsaw II 협동학습이 과학지식, 탐구능력 및 학습태도에 미치는 영향)

  • 최영재;안미경
    • Journal of Korean Elementary Science Education
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    • v.20 no.2
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    • pp.177-186
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    • 2001
  • Recently, introduced open education, there are some models applied several cooperative teaming, but there is no case in applied Jigsaw Ⅱ. So this research is selected objects which are 147 students in the fifth grade in 1999' school year and 143 students in 2000's on Yongwon elementary school. It makes share a partial responsibility for planner, leader, investigator, helper, writer and reporter in the small groups, and apply the Jigsaw Ⅱ model. Qualitative and quantitative analyses show that they have effects of Jigsaw Ⅱ cooperative Learning on Student's knowledge, inquiry ability and attitudes on Elementary School Science Study. The final results are following. The significance of Knowledge has .02 in 1999 and .01 in 2000. Testification of Inquiry ability has 1.75 in 1999 and 2.25 in 2000. The significance of Attitudes has .03 in 1999 and .00 in 2000. Research that has emerged from the cooperative teaming has led us to better understandings of multi purposed roles, interactions, and communities that arise when students work together to team science. Each of students can also cooperative as co-builders, working as equal participants to create a product that is better than that while would have built by either individual alone. Upon asking their intention, cooperative loaming shows more participation.

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