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        검색결과 1,992

        1101.
        2016.07 구독 인증기관·개인회원 무료
        E-commerce has become an irreplaceable sales channel for businesses of any size all around the globe. It is a major source of revenue and sales through this channel continue to gain momentum with an annual growth rate of 20%3). The ubiquity, flexibility, and convenience associated with e-commerce has undoubtedly changed the consumption patterns. However, consumers’ preferences and considerations when making purchasing decisions are not static either. In a global competition, businesses have to adopt quickly to respond emerging trends in retail. An important and persistent trend in this regard is ethical consumption, a development which has been widely researched in an offline context. The present experiment demonstrated that online shop-related ethical labeling positively influences consumers’ willingness to pay and purchase intention across a broad range of products. While any type of ethical labeling showed a positive effect in these regards as compared to no ethical labeling, there was no pronounced difference between the various types of labels used. Accordingly, we assume that consumers make inferences from a specific ethical label about the higher–level ethical “trait”.
        1102.
        2016.07 구독 인증기관 무료, 개인회원 유료
        As well as all other branches of trade, so retail trade itself undergoes various changes and trends with regard to the development of information and communication technologies which affect not only traders themselves but also their customers. It is the retail store environment itself which is one of the decisive aspects of purchase because more than 70% of consumer decisions take place directly at the point of sale. It is the last place which can reverse the purchasing decision. A final customers´ decision is influenced not only by price, quality but also by in-store communication and visual aspects of each store. That is the reason for continuous gathering of feedback on the effectiveness and efficiency of these means of communication in real environment. Besides traditional research techniques there are situations which require the involvement of relatively new research methods. Thanks to the innovative interdisciplinary approach with the use of neuromarketing, it is possible to create effective marketing strategies and thus stimulate the customer attention and emotions. By these emotions, it is possible to achieve better motivation toward purchase and an increase in the number of sales and subsequent raise in income. The paper deals with a complex, interdisciplinary examination of the in-store communication impact on customer visual attention, emotions and related spatial behaviour of customers in grocery stores. Research integrates measurements of mobile eye camera (Eye tracker), mobile electroencephalograph (EEG), face reading technology (FA) and internal position system in real conditions of retail store. The purpose of this research is to recognise the attention, emotional response and spatial customer preferences by means of selected in-store communication tools. At the end of the paper we explain how the neuromarketing methods can be used for better understanding of consumer behaviour at the point of sale.
        5,100원
        1103.
        2016.07 구독 인증기관 무료, 개인회원 유료
        Luxury watch manufacturers open boutiques around the globe. A branded boutique is a promise to customers and much of the responsibility of keeping it weighs on frontline employees. However, not much is known about the “moments of truth” in monobrand boutiques. This study explores the “front reality” of sales staff and besides a theoretical and a managerial contribution provides a critical reflection of the methodological approach.
        4,000원
        1104.
        2016.07 구독 인증기관·개인회원 무료
        Luxury brands are explicitly marketed to appear rare, exclusive, prestigious, and authentic (Phau & Prendergast, 2000; Turunen & Laaksonen, 2011; Tynan, McKechnie, & Chhuon, 2010). The glamour and distinction that these brands generate appeal to consumers’ desire to signal their accomplishments, success, or social superiority (Mandel, Petrova, & Cialdini, 2006; McFerran, Aquino, & Tracy, 2014). It is, therefore, unsurprising that the marketing communication of many luxury brands explicitly portray images of successful, sophisticated, and confident people expressing their social superiority. However, the empirical evidence supporting the effectiveness of such portrayal in luxury communication is scant. Only a pilot study showed that exposure to a story of a similar successful other may increase desire for luxury goods (Mandel et al., 2006). In the present research, we propose that envy is a key determinant of how consumers perceive display of pride and social superiority. Our findings from two studies showed that benign (malicious) envy predisposes consumers to perceive portrayal of social superiority on luxury marketing communication to be an expression of authentic (hubristic) pride. This relationship between benign (malicious) envy and authentic (hubristic) pride enhances (reduces) the luxury perception and positive brand attitude toward the luxury brand in the advertisement. These findings were replicated in a correlational study on genuine advertisements (Study 1) and an experiment that successfully manipulated consumers’ experience of benign envy (Study 2). Separate studies have recently shown that experience of benign envy can increase consumers’ willingness to pay toward the envied product (Van de Ven et al., 2011) and that the experience of authentic pride increases luxury consumption (McFerran et al., 2014). However, no existing research has explored the complementary effect of envy and pride on consumers’ response toward luxury marketing communication. The current research is therefore the first to demonstrate the differential effect of benign and malicious envy on: (1) consumers’ interpretation of social superiority as an expression of authentic and hubristic pride; (2) consumers’ response toward the portrayal of social superiority in luxury marketing; and (3) how portrayal of social superiority enhances or reduces luxury perception and brand attitude of a luxury brand. These findings also provide insights into the complementary relationship between envy and pride in consumer psychology. Lange and Crusius (2015) suggested that other’s authentic and hubristic pride expression may evoke the experience of benign and malicious envy, respectively. The current research, however, shows that the Luxury brands are explicitly marketed to appear rare, exclusive, prestigious, and authentic (Phau & Prendergast, 2000; Turunen & Laaksonen, 2011; Tynan, McKechnie, & Chhuon, 2010). The glamour and distinction that these brands generate appeal to consumers’ desire to signal their accomplishments, success, or social superiority (Mandel, Petrova, & Cialdini, 2006; McFerran, Aquino, & Tracy, 2014). It is, therefore, unsurprising that the marketing communication of many luxury brands explicitly portray images of successful, sophisticated, and confident people expressing their social superiority. However, the empirical evidence supporting the effectiveness of such portrayal in luxury communication is scant. Only a pilot study showed that exposure to a story of a similar successful other may increase desire for luxury goods (Mandel et al., 2006). In the present research, we propose that envy is a key determinant of how consumers perceive display of pride and social superiority. Our findings from two studies showed that benign (malicious) envy predisposes consumers to perceive portrayal of social superiority on luxury marketing communication to be an expression of authentic (hubristic) pride. This relationship between benign (malicious) envy and authentic (hubristic) pride enhances (reduces) the luxury perception and positive brand attitude toward the luxury brand in the advertisement. These findings were replicated in a correlational study on genuine advertisements (Study 1) and an experiment that successfully manipulated consumers’ experience of benign envy (Study 2). Separate studies have recently shown that experience of benign envy can increase consumers’ willingness to pay toward the envied product (Van de Ven et al., 2011) and that the experience of authentic pride increases luxury consumption (McFerran et al., 2014). However, no existing research has explored the complementary effect of envy and pride on consumers’ response toward luxury marketing communication. The current research is therefore the first to demonstrate the differential effect of benign and malicious envy on: (1) consumers’ interpretation of social superiority as an expression of authentic and hubristic pride; (2) consumers’ response toward the portrayal of social superiority in luxury marketing; and (3) how portrayal of social superiority enhances or reduces luxury perception and brand attitude of a luxury brand. These findings also provide insights into the complementary relationship between envy and pride in consumer psychology. Lange and Crusius (2015) suggested that other’s authentic and hubristic pride expression may evoke the experience of benign and malicious envy, respectively. The current research, however, shows that the
        1105.
        2016.07 구독 인증기관 무료, 개인회원 유료
        The increasing competition in recent years made more and more firms regard strategic alliance as an important alternative and solution to respond to fierce competition. As a kind of system arrangement among firms, the concept of strategic alliance was first proposed by Hopland and Nigel in the early 1980s, who defined strategic alliance as the collaboration mode in which two or more firms, aiming at joint-owned both market and resources, formed the kind of cooperation to enhance advantages, share risk or cost, and also mutual flow of production factors via different kinds of contracts or agreement. However, even before this definition, many firms have already begun their alliance strategies practices. As a cooperative form, strategic alliance, no matter its specific types, becomes one key choice for firms to acquire, maintain and enhance their market shares and positions. Shrader (2001) found that collaboration to foreign firms become key methods for newly-founded firms and small firms to enter foreign markets, which can bring these firms with suitable knowledge and market information, making these firms expand even faster with lower costs and market risks. The enhancing pace of globalization and internationalization triggered firms’ attentions to external markets, Archibugi and Iammarino (2002) found that fierce changes in internal market forced firms to expand their market and product scopes, making more and more firms realize product and R&D internationalization by searching, choosing and collaborating with foreign firms. Dong and Glaister (2006) found Chinese firms cared more about market positions, international expansion and technology exchanges, while foreign firms tended to enter to Chinese market and learn how to operate in China via strategic alliances. Although, many scholars brought out managerial practices of firms’ strategic alliances, and had already formed theoretical foundations, researches related to market orientation, especially how alliance firms establish and realize their strategic goals and performance goals under market motivation is still lack of studies. In reality, the mechanism how firms’ alliance intention transformed into their strategic or performance goals is still in the black box. Taken alliance firms as research objectives, this paper tends to explore how firms constructed strategic alliance due to market-orientation realize their strategic or performance goals via choice of patent strategies. We introduced patent strategies to establish the matching model, to analyze how firms market orientation influence choices of patent strategies, and their mutual effects on firms innovative performance, in hope to provide to the future studies and managerial practice how firms can choose the reasonable and effective alliance partners according to their own strategic and performance goals. Based on differentiation of market access and market extension motivation, we pointed out that, in order to realize the transformation from alliance motivation to innovation performance, alliance firms had to choose and determine among a set of practical and operational plans. Patent strategies, as a kind of operational plan, were conducive to transformation from alliance motivation to innovation performance. With the framework of market motivation, patent strategy and firms innovative performance, we put forward the hypotheses on how market motivation affect firms’ choices of patent strategies, and also the joint effects of market motivation and patent strategies on firm innovative performance. We selected alliance firms in IT industry as samples, with data from Cooperative Agreements and Technology Indicators Database, USPTO and R&D Scoreboard released by Department for Business, Innovation & Skills of UK, we empirically tested effects of market motivation on choices of patent strategies, and also effects of market motivation and patent strategies on firms innovative performance. Results showed that: different market positions led to differentiated motivations and patent strategies in their strategic alliances, firms with relatively weak market positions tend to pursue strategic profile of patent defensive and leveraging strategies under market access motivation, while firms with strong positions would like to implement patent proprietary and leveraging strategies in market extension motivation. The implementation of patent defensive and leveraging strategies under market access motivation enhanced innovation efficiency of the firms with weak market positions. Since these firms focused more on market positions and opportunities, their market capitalization tended to improve, but the motivation and utilization of patent strategies had no effect on patent output. Similar to these firms, the ones with stronger market position were inclined to strengthen their market opportunities and improve their market capitalization. Results indicated that because of their stronger market positions, these firms showed lower awareness of innovation efficiency and their emphasis on patent output was not high either, which then led to the fact that both market extension motivation and patent strategies used had no effects on firms innovative performance measured by innovation efficiency or patent output.
        3,000원
        1106.
        2016.07 구독 인증기관·개인회원 무료
        The advances of the Internet open consumers new opportunities to share their consumption experiences, opinions and feelings with others. Online customer reviews (OCRs) are a crucial source of information for consumers and are regarded as one of the most influential types of electronic word-of-mouth (eWOM) in shaping consumer attitudes and facilitating purchase decisions (Plummer, 2007). Prior research has produced a number of valuable insights on OCRs (e.g., Dellarocas, Gao, & Narayan, 2010; Hennig-Thurau et al., 2004; Mayzlin, Dover, & Chevalier, 2014). Especially the influence of OCR valence (positively vs. negatively framed information) has received considerable attention both from practitioners and from scholars (e.g., Xue & Zhou, 2010; Yang & Mai, 2010; Lee et al., 2009). However, we argue that scientific insights on the influence of OCR valence remain limited. Specifically, this paper shows that the level of source credibility (high vs. low) as well as the type of product (search vs. experience good) are important moderators of the influence of OCR valence on several consumer OCR reactions (product attitude, product quality, and product trust) under specific circumstances only. Four hundred and sixteen respondents (70% females, average age 24 years) participated in an experiment with a 2×2×2 between-subjects full factorial design manipulating the OCR valence (positive vs. negative), the source credibility (high vs. low) and the product type (search vs. experience good). Results demonstrate that the effect of positive OCRs from highly credible sources on diverse outcome variables is larger than from low credible sources. By acknowledging Chaiken et al.’s (1989) theoretical extension of the heuristic-systematic model (Chaiken, 1980) we provide empirical evidence that source credibility intensifies the impact of positive OCRs due to the additivity effect. In contrast, credible negative information is not more influential than incredible information. A similar mechanism becomes operational when considering product type. Here, positive OCRs about experience goods have a stronger influence on product evaluations than similarly valenced information about search goods. This research provides further support for the crucial role of credible, positive OCRs in affecting consumer behavior in contrast to their negative counterparts. From a practical perspective, marketers should consider including highly credible OCRs from trustworthy and experienced customers’ peers as decision aids. This can be achieved, for instance, by including personal postings from Facebook. Such a strategy is particularly efficient as positive OCRs increase the consumer’s confidence towards the product while credible negative OCRs are not more harmful than incredible ones.
        1107.
        2016.07 구독 인증기관·개인회원 무료
        Support from the private sector, for example by firms, has been solicited to ease tourist attraction financial constraints and to help their restoration and maintenance out of Corporate Social Responsibility (CSR) activities (United Nations, 2010; Europanostra, 2013). When engaging in these partnerships, firms may display different level of altruistic motivation. For example, the Italian fashion company Tod’s demonstrated high altruism by agreeing to restore the Colosseum without any economic or financial return. American Express, however, sought promotional rights when the firm agreed to contribute to the restoration of the Statue of Liberty. Finally, the ticketing agency Eventim renamed the Hammersmith Apollo (now Eventim Apollo) in London following their involvement in the restoration, thus pursuing more strategic, rather than altruistic goals. Non-altruistic goals and the fear that the involvement of a company may generate scepticism in visitors, as they could perceive the authentic image of a tourist attraction to be jeopardized. Managers of tourist attractions are faced with a dilemma: should they seek financial support from third parties (e.g. firms), or would this compromise the appeal of the site, leading to a drop in the number of visitors? In order to address this problem, we conducted two experiments to examine how firms' involvement in restorations affects tourist attractions. We found that firms' altruistic motivations (that denotes the support of a cause without demanding anything in return) are positively associated with tourists' intentions to visit the attraction (Study 1). Moreover, we found that this relationship is mediated by visitors’ perceived authenticity, in other words the belief that the real aspect of the site has not been irreversibly altered. We confirm the robustness of our findings in Study 2, additionally showing how this effect is stronger in the case of heritage sites compared to non-heritage sites. To the best of our knowledge, our results are among the first to show how a lack of altruism in CSR activities can negatively affect the target of the campaign (in this particular case a tourist attraction). Results also suggest managers of tourist attractions with high heritage value to assess the altruistic motives of the firm carefully before engaging in a financial partnership.
        1108.
        2016.07 구독 인증기관 무료, 개인회원 유료
        The Internet is providing companies with an opportunity to market their goods more widely than has been the case in the past. This is having implications for senior managers as it means that some luxury goods are being made available to a wider market segment than previously and also, there are issues as regards authenticity and counterfeiting for example. Cultural value systems underpin psychological needs which are taken into account when advertising a brand and in addition, marketers are keen to build a relationship with customers, which takes into account the customers’ psychological aspirations. Meeting consumer expectations is crucial in the luxury sector because of the value placed on uniqueness and the price-quality dynamic. Bearing these points in mind, the research question to be addressed in this paper is: How can marketers utilize the Elaboration Likelihood Model (Petty & Cacioppo 1984 & 1986) in order to maintain the quality of the luxury brand and develop a relationship with high net worth individuals while marketing the product online? The aim of the paper is to explain how marketers can develop a better understanding of how the Elaboration Likelihood Model (Petty & Cacioppo 1984 & 1986) can be utilized to develop theoretical insights into promoting luxury goods online. Bearing this in mind, two research objectives were formed: (i) to explain how the Elaboration Likelihood Model can be used to formulate international luxury brand strategies; and (ii) to provide guidance as to how marketers can develop a better understanding of marketing luxury products online. The study will build on the work of Hennessey and Anderson (1990), as it will explain how involvement affects motivation vis-à-vis luxury brands. By studying luxury brands, the Internet, and social psychology, it should be possible for marketers to provide marketing practitioners with relevant theoretical insights into how marketing theory is evolving and is applied in practice. The Elaboration Likelihood Model represents “a fairly general framework for organizing, categorizing, and understanding the basis processes underlying the effectiveness of persuasive communications” (Petty & Cacioppo, 1986, p.125) and proves ideal with respect to researching cultural value systems. The Elaboration Likelihood Model allows academic researchers to look into and comprehend cognitive processing (Cacipppo, Harkins, & Petty, 1981, p.37). The main strength of the Elaboration Likelihood Model is that the variables that can impact certain judgements are made clear and in addition, the processes underlyingchanges in attitude are made known and so too are the resulting judgements (Petty, Rucker, Bizer, & Cacioppo, 2004, pp.66-67). The Elaboration Likelihood Model has been extensively used by marketing academics and has relevance in terms of how people formulate a systematic information processing strategy (De Meulenaer, Dens, & De Pelsmacker, 2015, p.610). Marketers are concerned about the price-quality dynamic and also the trust construct (Shu-Chen, Wanchiao, Sung, & Cheng-Kiang, 2006) and risk (Park, Lennon, & Stoel, 2005) vis-à-vis buying online. Furthermore, how online consumers interpret signals has been given attention (San Martin, Camarero & San Jose, 2011) and according to Areni (2003), argument-driven persuasion is important and will be given attention in the study. Attention will be given to luxury branding, the development of an international brand strategy and how marketers can protect a luxury brand through a marketing intelligence strategy that counteracts counterfeiting. As well as utilizing data collected via a group interview, reference will be made to data collected over a three year period using a survey instrument. The Elaboration Likelihood Model (Petty & Cacioppo 1984 & 1986) will be used as a basis for providing a framework for understanding how a luxury brand can be perceived and protected, and the research outcome will be used by marketers to advise senior management about the need for implementing an integrated international luxury brand strategy. For example, research has been undertaken into the relevance of the construct trustworthiness and it is important to note that “trustworthiness is an attribute of individual exchange partners” (Barney and Hansen, 1994, p.176). This is an important observation because the producers of luxury goods depend on a number of external specialists (eg., designers, communication and public relations advisors, and manufacturers of specialist components) in order to help the company to add value to the product/service and make sure that it is viewed as unique. Marketers employed by a luxury goods producer need to ensure that data and information relating to the product offering is well guarded because they need to have confidence in the fact that there are no vulnerabilities in existence. A vulnerability could result in leakage of sensitive data and information (e.g., a new design) and result in a loss in intellectual property and ultimately brand piracy and reputational damage. By failing to identify potential vulnerabilities and deal with them through adequate counter threat measures, it is likely that it will take several years and require a repositioning and a rebranding strategy to recover the brand in the market. What we are advocating is a marketing counterintelligence strategy that is aimed at reinforcing the need and usefulness of security to protect the brand and ensure that the brand is not diluted in any way. Another reason as to why marketers need to engage in risk management is because there are a number of country-of-origin issues that arise and need to be addressed. Balabanis and Diamantopoulos (2011) have indicated that consumers are not always able to link a brand correctly with its country-of-origin and this may prove problematic. This is linked with brand image perceptions and again the Elaboration Likelihood Model can help to provide evidence that is used by marketers to overcome consumer misperceptions. Reflecting on the fact that marketers are confronted with legitimate competition (products and services compete in adherence with regulatory processes) as well asillegal forms of competition, it can also be argued that marketers need to be aware of and embrace the standards that govern the production of the product/service to the quality specified. Thus, senior management need to ensure that employees lower down the organizational hierarchy are committed to maintaining the standards that are in being (Ghoshal and Bartlett, 1994, p.96). Ghoshal and Bartlett (1994, p.98 and pp.106-107) add to our understanding by suggesting that marketers need also to have a shared ambition and participate in a collective decision-making, which relies upon collective learning. The logic of this view manifests in the fact that the Elaboration Likelihood Model is used to reinforce and condition the views of the employees as well as the organization’s customers and because it has both an internal and an external dimension. Because marketers work closely with organizational strategists that are outward looking and intelligence driven, and liaise with R&D, technology and production staff that are inward looking and security driven, they are well able to contribute to the risk management process and advise on all the aspects of marketing strategy. The research undertaken will be placed within a strategic marketing context and the learning aspect will be drawn upon to show how marketers can link social psychology theory with marketing theory, and how risk communication can be used to reinforce the advertising message. The paper will explore the advertising-consumer perception dynamic and will examine how the Elaboration Likelihood Model (Petty & Cacioppo 1984 & 1986) can be used to promote the uniqueness of a luxury good to individual consumers who share and exchange information using social networks. The influence of social networks is growing and marketers need to be aware of how and why consumers share and exchange information as they do across geographical boundaries. In particular, it will build on the work of Michaelidou and Christodoulides (2011) by establishing how certain psychological factors influence attitudes towards counterfeited products and what marketers can do to counteract these attitudes. This will contribute to the literature because it will highlight both price related and ethical related issues associated with the purchasing of counterfeited goods. In addition, it will allow marketers to identify trends in customer buying behavior and build on the work of Jack and Powers (2013) relating to shopping behavior and consumer satisfaction. By understanding better the motivations of those that purchase luxury products, marketers will be better able to plan product offerings and formulate and implement promotional strategies.
        3,000원
        1109.
        2016.07 구독 인증기관·개인회원 무료
        Social media has quickly becoming tools of choice for communicating between brand and their customers. Among all social medias, instagram is seen as the most effective one, especially for fashion brands. Instagram’s main function to share videos and pictures is suitable with visual communication methods that is often being used by fashion brands. Posts with high amount of likes and positive comments may increase brand awareness and can trigger positive e-WOM (Electronic Word of Mouth) among customers and potential customers. Why is communicating with consumers very important? Because in this era consumers are brands’ most trustworthy and loyal marketers for company’s products (Çukul, 2015). Customers are likely to believe review from their families and friends rather than reviews that is being written by the company itself (Chang, 2014). Realizing the importance of nurturing positive word of mouths among customers, this paper is going to use qualitative analysis to analyze Instagram posts of well-known local fashion brands to find out what kind of post that will generate the highest positive e-WOM feedback from the audience. Content of Instagram account of researched brands are being examined according to post type (photo / video), content type (9 elements), number of likes and reviews, photo type (amateur / professional), and shooting place (studio / outdoor / shops). Analysis is conducted to understand what kind of Instagram post that will give positive feedback from their customers. The result of this paper will serve as guidance for company to tailor interesting and engaging post hence increasing the probability of creating positive e-WOM that will increase brand image that ultimately will increase sales.
        1110.
        2016.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        알파 프로테박테리아(α-proteobacterium)인 볼바키아(Wolbachia) 세균은 절지동물 세포내의 중요한 공생균 중의 하나이다. 그람 음성 세 균인 이 공생균은 기주동물의 여러 생물적 과정에 관여하고 있으며, 현재 생물적 방제 수단으로 주목 받고 있다. 볼바키아는 기주 세포의 세포질에 서식하는 세균인데 암컷을 통하여 세대간 전염된다. 볼파키아의 감염 개체 밀도를 높이기 위해 기주의 생식방식을 조작하는 다양한 전략을 발달시 켰다. 볼바키아 유전자형 계통은 볼바키아 표면 단백질(WSP)의 고변이영역 아미노산 서열과 복합좌위 서열 타이핑(Multilocus sequence typing, MLST)으로 결정된다. 상이한 유전계통 판별은 wsp, 16S rRNA, ftsZ, gltA, groEL 등 유전자 분자표지를 이용하게 된다.. 이 계통 볼바키아 세균과 그들의 우월한 표현형이 농업해충과 인간의 질병매개 곤충에 대한 방제 프로그램에서 이용 가능성이 고려되고 있다. 볼바키아 표현형들은 세포질불일치(cytoplasmic incompatibility, CI), 단성생식 유도(parthenogenesis induction, PI), 여성화(feminization, F), 수컷치사(male killing, MK) 등을 유발하는 것으로 알려져 있다. 기타 볼바키아 세균의 농업과 위생곤충 방제 프로그램에서 응용 방안을 고찰하였다.
        4,300원
        1111.
        2016.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The main objective of this paper is to elucidate the present status of Plant Genetic Resources (PGRs), their research, and management system in the genebank of Nepal. PGRs for food and agriculture are the biological basis of world food and nutrition security. The remarkable elevation ranging from 60 meter above sea level (masl) to highest summit Mount Everest (8,848 masl) has created huge geographical and climatic variation which harbor enormous plant species in the country. National Agriculture Genetic Resource Center (NAGRC) or ‘Genebank’ currently conserved 11,051 accessions of more than 110 crops species belonging to cereals (5,850), pseudo cereals (1,150), pulses (1,800), oilseeds (185), and vegetables (565) including other crops (1,501) at ex-situ. Diversity mapping, characterization and evaluation of PGRs, duplicates identification, diversity study, pre-breeding and landrace enhancement are the major research works of NAGRC, and its management strategies include conservation method, types, and groupings of PGRs. Characterization, evaluation and tagging of economically important traits in PGRs are now more important for strengthening their pre-breeding and proper utilization. Additionally, strong communication and collaborative network among public, private, community based organizations and international organizations are important for the effective management of PGRs.
        4,000원
        1112.
        2016.06 구독 인증기관 무료, 개인회원 유료
        In the present study, we evaluated the effect of CGM on osteogenic differentiation of cultured osteoblasts, and determined whether combination treatment with LLLT had synergistic effects on osteogenic differentiation. The results indicated that CGM promoted proliferation, differentiation, and mineralization of osteoblasts at the threshold concentration of 10 μg/ml; whereas, CGM showed cytotoxic properties at concentrations above 100 μg/ml. ALP activity and mineralization were increased at concentrations above 10 μg/ml . CGM in concentrations up to 10 μg/ml also increased the expression of osteoblast-activated factors including type I collagen, BMP-2, RUNX2, and Osterix. The CGM (50 μg/ml) and LLLT (80 mW for 15 sec) combination treatment group showed the highest proliferation levels, ALP activity, and mineralization ratios. The combination treatment also increased the levels of phosphorylated forms of p38, ATF2, PKD, ERK, and JNK. In addition, the osteoblast differentiation factors including type I collagen, BMP-2, RUNX2, and Osterix protein levels were clearly increased in the combination treatment group. These results suggested that the combination treatment of CGM and LLLT has synergistic effects on the differentiation and mineralization of osteoblastic cells.
        4,000원
        1113.
        2016.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Well-dispersed Ag3VO4 nanoparticles @polyacrylonitrile (PAN) nanofibers were synthesized by an easily controlled, template-free method as a photo-catalyst for the degradation of methylene blue. Their structural, optical, and photocatalytic properties have been studied by X-ray diffraction, transmission electron microscopy, field-emission scanning electron microscopy equipped with rapid energy dispersive analysis of X-ray, photoluminescence, and ultraviolet–visible spectroscopy. The characterization procedures revealed that the obtained material is PAN nanofibers decorated by Ag3VO4 nanoparticles. Photocatalytic degradation of methylene blue investigated in an aqueous solution under irradiation showed 99% degradation of the dye within 75 min. Finally, the antibacterial performance of Ag3VO4 nanoparticles @PAN composite nanofibers was experimentally verified by the destruction of Escherichia coli. These results suggest that the developed inexpensive and functional nanomaterials can serve as a non-precious catalyst for environmental applications.
        4,000원
        1118.
        2016.05 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The key features of maritime accidents are the change of their attributes by new risks from time to time. To prevent maritime accidents in Korea, the impacts by new risks on domestic safety environments should be identified or predicted. The purpose of this paper is to find the hazard factors by new risks on maritime safety in Korea. The meaning of new risks is the elements of accident hazard which is compiled from new or rare or unprecedented events in the worldwide maritime transportations. The problems of new risks are the lacks of optimum countermeasures to mitigate accident risks. Using the questionnaires with 152 event scenarios classified by 20 accident causes, the hazard identification and risk analysis of new risks was performed based on the Formal Safety Assessment (FSA) by IMO. A total of 22 Influence Diagrams, which is to depict the transit flows between accident causes to consequences, is used in the construction of 152 event scenarios. A total of 20 accidents causes is the same contents as the causation factors represented in Statistical Year Book for Maritime Accidents of Korean Maritime Safety Tribunals. After defining the evaluation equations to the response results of questionnaires by 46 experts, the work for risk analysis is carried out. As results from the analysis of 152 scenarios, it is known that the root cause to affect on maritime safety in Korea is the pressure of business competition and it led to the lacks of well experienced crews, the overload of vessel operations and crew's fatigue. In addition, as results from the analysis of 20 accident causes, the three accident causes are to be candidate as main issues in Korea such as the inadequate preparedness of departure, the neglecting of watch keeping in bridge and the inadequate management of ship operations. All of the results are thought to be as basic hazard factors to safety impediments. It is thus found that the optimum Risk Control Options to remove the hazard factors and to mitigate consequences required are the following two factors: business competition and crewing problems.
        4,000원
        1119.
        2016.05 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Background: Strengthening the supraspinatus is an important aspect of a rehabilitation program for subacromial impingement and tendinopathy. Many authors recommended empty-can (EC), full-can (FC), and prone full-can (PFC) exercises to strengthen the supraspinatus. However, no ultrasonography study has yet investigated supraspinatus muscle architecture (muscle thickness; MT, pennation angle; PA, fiber bundle length; FBL) in relation to supraspinatus strengthening exercises. Objects: The purpose of this study was to compare the architecture (MT, PA, and FBL) of the supraspinatus muscle during three different types of exercises (EC, FC, and PFC) using diagnostic ultrasound. Methods: Participants performed three different exercises: (A) EC; the arm was maintained at 60° abduction with full internal rotation in the sitting position, (B) FC; the arm was maintained at 60° abduction with full external rotation in the sitting position, and (C) PFC; the arm was maintained at 60° abduction with full external rotation in the prone position. Ultrasonography was used to measure the MT, PA and FBL of the supraspinatus. One-way repeated analysis of variance with Bonferroni’s post-hoc test was used to compare between the three exercises and the initial position of each exercise. Results: Compared with each initial position, the FC exercise showed the greatest mean difference in muscle architecture properties and the PFC exercise showed the least mean difference. Conclusion: The findings suggest that the FC exercise position may have an advantage in increasing the amount of contractile tissue or producing muscle power and the PFC exercise position may be useful in a rehabilitation program because it offers the advantage of maintaining the muscle architecture properties.
        4,000원
        1120.
        2016.04 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The recent rise in applications of thermoelectric materials has attracted interest in studies toward the fabrication of thermoelectric materials using mass production techniques. In this study, we successfully fabricate n-type Bi2Te2.7Se0.3 material by a combination of mass production powder metallurgy techniques, gas atomization, and spark plasma sintering. In addition, to examine the effects of hydrogen reduction in the microstructure, the thermoelectric and mechanical properties are measured and analyzed. Here, almost 60% of the oxygen content of the powder are eliminated after hydrogen reduction for 4 h at 360°C. Micrographs of the powder show that the reduced powder had a comparatively clean surface and larger grain sizes than unreduced powder. The density of the consolidated bulk using as-atomized powder and reduced atomized powder exceeds 99%. The thermoelectric power factor of the sample prepared by reduction of powder is 20% better than that of the sample prepared using unreduced powder.
        4,000원