• Asia pacific journal of information systems
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• 제16권2호
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• pp.183-203
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• 2006

Firms are increasingly adopting online communities-of-practice (CoPs) with strong managerial support in hopes of promoting knowledge sharing and creation within the organization. Excessive managerial concern and sponsoring, however, could harm the spontaneity of CoP participants, which is one of the pivotal characteristics of virtual communities, and in the end, have negative impact on their smooth operation. In this regard, this study examines the factors which affect the stimulation of CoPs and explores the difference in their operating mechanisms under two differing organizational structural settings by the existence of a sponsor. By analyzing 133 samples of CoPs in a globally leading company, this study found that the existence of a sponsor designated by the organization, has serious influence on the working of CoPs, That is, leaders' enthusiasm and the level of off-line activities are critical factors for the stimulation of CoPs which have no sponsor, while in case of CoPs that have their sponsors, neither leaders' enthusiasm nor the level of off-line activities are significantly related to the stimulation of CoPs. At the same time, the performance of CoPs which have their sponsors was found significantly higher than that of CoPs which have no sponsor. These results indicate that firms need to pay special attention to organizational sponsorship when introducing CoPs within their organizations.

• Fashion, Industry and Education
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• 제14권1호
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• pp.31-39
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• 2016

With the emergence of online communities, the role of online communities in establishing brand equity has been greatly emphasized. In order to enhance our understanding of commitment in online brand communities, the present study attempts to investigate how three dimensions of community commitment (continuance, affective, and normative commitment) influence each component of brand equity (brand awareness, brand association, perceived quality, and brand loyalty) in the context of company-initiated online brand community. An online survey was conducted with a sample of online brand community members. The results found differential impacts of three types of community commitment on brand equity components, emphasizing the role of continuance and affective commitment. Continuance community commitment positively influenced brand awareness and brand association. Affective community commitment positively affected perceived quality, while among the three, only continuance and affective community commitment influenced the enhancement of brand loyalty. The results suggest that brand marketers need to focus on continuance and affective commitment factors in their online communities to effectively enhance brand equity possessed by consumers. Theoretical and managerial implications are provided.

• 한국IT서비스학회지
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• 제6권3호
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• pp.69-86
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• 2007

As most of firms related with P2P services change their free services into fee-charging services, the problems of intellectual property rights are solved to satisfactory extent. Accordingly, P2P systems become more popular with the general public. In this respect, it is thought to be very important to research on the critical factors affecting usage of P2P systems. Although it is strongly expected that the characteristics of users activities in virtual communities affect the intention to re-use P2P systems, relatively few attention have been paid to this question. Therefore, this paper is to present empirical evidence to explain how the characteristics of users activities in virtual communities affect re-use intention of P2P services. The theoretical contribution of this study is that the characteristics of users activities in virtual communities is theoretically derived from the comprehensive literature review and the logical reasoning, and that the research model of the relationship between the users activities' characteristics in virtual community and the re-use intention of P2P services is proposed and empirically validated, which is expected to expand explaining power of the TAM(Technological Acceptance Model). Also, the practical implication is to provide the guideline to support the successful strategic planning for development and.operation of P2P services through the virtual communities.

• 한국지역사회생활과학회지
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• 제25권1호
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• pp.39-49
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• 2014

This study identifies the necessity and importance of innovation in rural communities and highlights the role of rural revitalization support centers in facilitating the diffusion of community innovation. The study provides a literature review and employs the survey method to verify the arguments. There is an urgent need for rural communities to be distinct, attractive, and competitive in the wake of globalization. It is clear that they must recognize the need to facilitate innovation under growing trends toward trade liberalization, environment-oriented life styles, diversified consumer needs, and a knowledge-based society. The results provide support for the legitimacy of establishing rural revitalization support centers to help community leaders and local stakeholders develop their communities. More specifically, rural communities should employ R&D outcomes from diverse fields and capacity building by community members, leaders, and local governments to foster sustainable growth by overcoming limitations in spatial access and resources. The results suggest that rural revitalization support centers can be established as intermediary organizations that can be operated to facilitate community innovation in rural development. In addition, these centers should play key roles such as empowering communities, facilitating region-specific rural development policies, motivating R&D applications for rural development, encouraging rural development networks. Further, close attention should be paid to facilitate mutual learning by expanding networks and interactions between these centers.

• 한국지역지리학회지
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• 제11권6호
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• pp.585-606
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• 2005

인터넷과 같은 정보기술의 비약적 발전은 아파트 거주공간에도 홈페이지를 통한 사이버공동체의 형성이라고 하는 새로운 변화를 가져오고 있다. 이 연구는 이러한 아파트 거주공간에서의 사이버공동체의 가능성과 한계를 홈페이지의 운영 실태에 대한 광범위한 조사 분석을 통하여 고찰하였다. 조사결과는 아직까지 아파트 사이버공동체의 실제 모습은 이론적으로 기대하는 것에 비하여 상당히 미흡하다는 것이다. 사이버공동체의 이상과 상당한 격차를 가져오는 현실적으로 많은 한계들이 존재하는 것을 확인할 수 있다. 그러나 거주공간에 기초한 온라인 공동체로서 전혀 가능성을 없는 것은 아니다. 무엇보다 중요한 것은 사이버공간의 가상성을 극복하는 오프라인 공동체 활동이라고 할 수 있다.

• 한국산림과학회지
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• 제90권5호
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• pp.593-599
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• 2001

다변량분석법(주성분분석법, PCA)을 이용하여 무척추동물 군집에 백강균 처리가 미치는 영향을 검정하였다. 좌표공간내의 군집들간의 거리를 이용하여, 군집구조에 미치는 요인들의 영향을 통계 검정하였다. 백강균 처리는 낙엽과 토양의 무척추동물 군집에 유의한 영향을 주지 않았다.

• Mycobiology
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• 제46권1호
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• pp.13-23
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• 2018

Depending on the mode of nutrition exploitation, major fungal guilds are distinguished as ectomycorrhizal and saprotrophic fungi. It is generally known that diverse environmental factors influence fungal communities; however, it is unclear how fungal communities respond differently to environment factors depend on fungal guilds. In this study, we investigated basidiomycetes communities associated with Quercus mongolica using 454 pyrosequencing. We attempted to detect guild pattern (ectomycorrhizal or saprotrophic fungal communities) by comparing the influence of geography and source (root and surrounding soil). A total of 515 mOTUs were detected from root (321) and soil (394) of Q. mongolica at three sites of Mt. Jeombong in Inje County. We found that patterns of diversity and community structure were different depending on the guilds. In terms of alpha diversity, only ectomycorrhizal fungi showed significant differences between sources. In terms of community structure, however, geography significantly influenced the ectomycorrhizal community, while source appeared to have a greater influence on the saprotrophic community. Therefore, a guildbased view will help to elucidates novel features of the relationship between environmental factors and fungal communities.

• 한국도서관정보학회지
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• 제50권1호
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• pp.199-224
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• 2019

이 연구는 거버넌스에서 도서관의 역할을 규명하는 데에 그 목적이 있다. 거버넌스는 사적 행위자가 정치행정과정에 참여함으로써 성립되는데, 현대 사회의 복잡한 문제를 해결하기 위해 다양한 주체의 협력을 중시하기 때문이다. 공동체는 공공성을 가진 사적 행위자로서 거버넌스가 직접민주주의를 실현하게 돕는다. 또한 도서관은 공동체를 육성하는 기관이기도 하고 때로는 공동체 그 자체이기도 하다. 따라서 이 연구는 문헌연구를 통해 공동체와 거버넌스의 관계, 도서관과 공동체의 관계를 규명한다. 그리고 문헌연구를 바탕으로 실증연구를 수행하여 도서관과 거버넌스의 관계를 규명한다.

• Mycobiology
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• 제50권6호
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• pp.448-456
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• 2022

In this study, the roots and rhizosphere soil of Abies koreana and Taxus cuspidata were collected from sites at two different altitudes on Mt. Halla. Ectomycorrhizal fungi (EMF) were identified by Illumina MiSeq sequencing. The proportion of EMF from the roots was 89% in A. koreana and 69% in T. cuspidata. Among EMF in rhizosphere soils, the genus Russula was the most abundant in roots of A. koreana (p < 0.05). The altitude did not affect the biodiversity of EMF communities but influenced fungal community composition. However, the host plants had the most significant effect on EMF communities. The result of the EMF community analysis showed that even if the EMF were isolated from the same altitudes, the EMF communities differed according to the host plant. The community similarity index of EMF in the roots of A. koreana was higher than that of T. cuspidata (p < 0.05). The results show that both altitude and host plants influenced the structure of EMF communities. Conifers inhabiting harsh sub-alpine environments rely strongly on symbiotic relationships with EMF. A. koreana is an endangered species with a higher host specificity of EMF and climate change vulnerability than T. cuspidata. This study provides insights into the EMF communities, which are symbionts of A. koreana, and our critical findings may be used to restore A. koreana.

• 환경생물
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• 제40권4호
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• pp.374-386
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• 2022

Phytoplankton communities, with emphasis on picoplankton and nanoplankton, were investigated in Gamak Bay, South Korea, where freshwater input and coastal water intrusion shape ecosystem functions. Shellfish farms and fish farms are located in the inner bay and outer bay, respectively, and tides translocate uneaten food and urine production from aquaculture farms toward the inner bay. Water masses were distinctly different based on a significantly different density between the surface and bottom layer and among three water masses, including the inner bay, outer bay, and Yeosu Harbor. Phytoplankton communities were quantified using flow cytometry and size-fractionated chlorophyll-a (chl-a) was measured. Salinity was a principal variable separating phytoplankton communities between the surface and bottom layer, whereas Si(OH)₄ controlled the communities in the inner bay, and NH₄⁺ and PO₄^3- governed the outer bay communities. While phycocyanin-containing (PC) cyanobacteria dominated in the outer bay, phycoerythrin-containing (PE) cyanobacteria dominance occurred with cryptophyte dominance, indicating that nutrients affected the distribution of pico- and nanoplankton and that cryptophytes potentially relied on a mixotrophic mode by feeding on PE cyanobacteria. Interestingly, picoeukaryotes and eukaryotes larger than 10 ㎛ were mostly responsible for the ecological niche in the western region of the bay. Given that chl-a levels have historically declined, our study highlights the potential importance of increased small phytoplankton in Gamak Bay. Particularly, we urge an examination of the ecological role of small phytoplankton in the food supply of cultivated marine organisms.