• Title/Summary/Keyword: COMMUNITY ANALYSIS

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Assessment of the Changes in the Microbial Community in Alkaline Soils using Biolog Ecoplate and DGGE (Biolog Ecoplate와 DGGE 방법을 이용한 알칼리화 토양의 미생물군집 변화 평가)

  • Lee, Eun Young;Hong, Sun Hwa
    • KSBB Journal
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    • v.28 no.5
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    • pp.275-281
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    • 2013
  • Soil microbial community analysis of farmland soil sprayed with lye in order to use fertilizer in Nigeria was performed. As a control, two kinds of soils not sprayed with lye, located in Eungo and Lagos with general practice in agriculture was selected. Soil sprayed with lye was pH 8.25 through alkalization reaction, while the other soil samples were pH 6.22 and 5.94. Substrate utilization and species diversity index of soil sprayed with lye were low than that of the other soils with the analysis of Biolog ecoplate. As a result of principal component analysis, the relationship between three samples was low. Microbial community analysis was performed by DGGE and most of them were soil uncultured bacterium. Especially, Uncultured Acidobacteria and Uncultured Methylocystis sp., which had been isolated from the rhizosphere of soybean grown in that site were discovered in the soil sprayed with lye.

Spatial Multicriteria Decision Analysis: A Powerful Tool for Participatory Decision-Making in Community-based Tourism Research

  • Kim, Jinwon
    • Journal of Smart Tourism
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    • v.1 no.4
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    • pp.3-7
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    • 2021
  • Although Geographic Information Systems (GISs) have commonly been employed as powerful tools for manipulating and displaying spatial data in community-based tourism, a variety of GIS functions still lack the capabilities required to assist multiple decision makers to come to consensual decisions. In this study, I propose an alternative approach: spatial multicriteria decision analysis (SMCDA) that could reflect diverse decision makers' preferences by integrating GISs and multicriteria decision analysis (MCDA). I review the small number of case studies that have employed SMCDA, with a focus on the roles of GISs and MCDA. The methodological integration of GISs and MCDA into multi-spatial decision support systems offers the potential to implement participatory decision-making to solve complex spatial problems in community-based tourism planning, development, and management.

Community Structures of Evergreen Broad-leaved Forest of Mt. Yeogwi in Jin-do Island (진도 여귀산 상록활엽수림의 군집구조)

  • Jang, Jeong Jae;Kim, Joon Sun
    • Journal of Korean Society of Forest Science
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    • v.94 no.6
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    • pp.410-419
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    • 2005
  • Community structure of evergreen broad-leaved forest of Mt. Yeogwi in Jin-do was investigated to secure sustainable conservation of evergreen broad-leaved forest. Twenty survey plots of $20m{\times}20m$ were established along the elevation from 200 m to 390 m above the sea level in the northwestern slope. The woody species were tallied at each plots. DBH distribution of the major evergreen broad-leaved trees was investigated to find out the spatial distribution. Cluster analysis was applied to a set of vegetation data, that is, importance value to classify the forest community. Species diversity, evenness and species correlation were analysed. Canonical correspondence analysis was also applied to vegetation data and soil environmental data. Cluster analysis showed that the forests of Mt. Yeogwi were classified into 2 community groups, such as Camellia japonica community group and Quercus acuta community group. C japonica community group was subdivided into C japonica- evergreen broad-leaved trees community, C. japonica-Neolitsea sericea community, and C. japonica-deciduous broad-leaved trees community. Q. acuta community group was subdivided into Q. acuta-C. japonica community, and Q. acuta community. C. japonica, Q. acuta, N. sericea, Machilus thunbergii and Illicium religiosum were dominant evergreen broad-leaved tree species, while Styrax japonica, Lindera erythrocarpa, Cornus kousa, Prunus sargentii, Albizzia julibrisin and Quercus acutissima were major deciduous tree species. Species diversity was greater in Q. acuta community group (0.8231 for Q. acuta-C. japonica community, and 0.8135 for Q. acuta community) than in C. japonica community group (0.7674 for C. japonica-evergreen broad-leaved trees community, 0.6164 for C. japonica-N. sericea community, and 0.7931 for C. japonica-deciduous broad-leaved trees community). DBH 2 cm~10 cm of major evergreen broad-leaved trees occupied 80% of all. C. japonica of less than DBH 5 cm tended to aggregate but distribute randomly or regularly with increasing DBH. Q. acuta distributed more aggregately than C. japonica and Machilus thunbergii for more than 15 cm of DBH. C. japonica correlated negatively with Q. acuta, I. religiosum and C. kousa, but positively with N. sericea. with significance at 1% level. Q. acuta correlated negatively with C. japonica, N. sericea and M. thunbergii but positively with l. religiosum. There were also negative correlation between N. sericea and C. kousa. CCA showed that forest communities were correlated with soil variables such as CEC, soil organic matter and soil pH. With increased soil organic matter and CEC, and decreased soil pH, C. japonica was dominant and forest community and Q. acuta and N. sericea tended to develop in the evergreen broad-leaved forest.

Characteristics of Online Child-Rearing Community and Their Effects on Community Loyalty and Purchase Intention of Baby Wear (온라인 육아 커뮤니티 특성요인이 커뮤니티 충성도와 유아복 구매의도에 미치는 영향)

  • Hwang, Ji-Hyun;Hwang, Choon-Sup
    • Journal of the Korean Society of Clothing and Textiles
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    • v.34 no.7
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    • pp.1138-1148
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    • 2010
  • This study examines the characteristics of the online child-rearing community launched by the voluntary motivations of consumers, and the effects of those characteristics on community loyalty and the intentions to buy baby wear via community sites. The study was implemented by a descriptive survey method using an online questionnaire. The sample consisted of 212 members of online child-rearing communities. The data were analyzed by frequency, factor analysis, and regression analysis. Results are as follows. 1) It was found that there were four major factors of online child-rearing community characteristics, such as attachment/pleasure, practical/economy, interaction, and information. 2) All four factors had significant effects on community loyalty. 3) The factor attachment/pleasure had no significant effects on intentions to buy baby wear, but practical/economy, interaction and information had effects upon those intentions. 4) Loyalty to the online child-rearing community had significant effects on the intentions of community members to buy baby wear via the community site. In addition, online child-rearing community members are interested in information regarding baby wear as well as its purchase; this is why baby wear makers should perform cost efficient consumer group segmentation in a timely manner. In addition, it will be effective for their marketing activities to target such consumer groups as segmented.

Study on Creation Method of Green Space for Port Ecosystem Using the Halophytes (염생식물을 이용한 항만 녹색공간 창출기법에 관한 연구)

  • Myeong, Hyeon-Ho;Lee, Jeom-Sook;Jeon, Ji-Young;Song, Man-Soon
    • Journal of Korean Society of Coastal and Ocean Engineers
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    • v.23 no.1
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    • pp.50-56
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    • 2011
  • To make conservative port and coast ecosystems and creative the greenspace, We were investigated with characteristic of flora, environmental factors, types of port, adaptive species, minimum conservation area and plantation model. In 50 sites of study areas, there are 19 families and 174 species of vascular plants and 19 families and 48 species of halophytes. Dominant communities in port ecosystem contains Carex kobomugi community, Elymus mollis community, Carex pumila community, Ixeris repens community, Vitex rutundifolia community, Calystegia soldandlla community, Rosa rugosa community, Lathyrus japonica community, Salsola komarovi community, Cynodon dactylon community, Tetragonia tetragonioides community, Suaeda japonica community, Suaeda maritima community, Zoysia sinica community and Phragmites communis community. We carried out Canonical Correspondence Analysis(CCA) for ordinations on the vegetation and plant communities-environmental variable matrices in 50 sites. The communities tended to cluster into three types: Clay marsh, Sand marsh, Sand gravel marsh types. Adaptive species in habitate types are selected that sand marsh-type communities in ports contained Elymus mollis community, Ixeris repens community, Carex kobomugi community, Carex pumila community, Clay marsh-type communities contained Suaeda japonica community, Phragmites communis community, Zoysia sinica community and Suaeda maritima community, Sand gravel marsh-type communities contained Vitex rutundifolia community, Calystegia soldandlla community. We are conducted the estimation of minimal area for plantation of adaptive plant species and carried out guide line and plantation model for creation of green space in port ecosystem.

Ecological Characteristic and Vegetation Structure of Pinus thunbergii Community in Coastal Forest of Busan Metropolitan City, Korea (부산광역시 해안림 곰솔군락의 식생구조 및 생태적 특성)

  • Shin, Hae-Seon;Lee, Sang-Cheol;Choi, Song-Hyun;Kang, Hyun-Mi
    • Korean Journal of Environment and Ecology
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    • v.33 no.5
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    • pp.539-551
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    • 2019
  • The purpose of this study is to understand the vegetation structure and ecological characteristics of the coastal forest Pinus thunbergii community in Busan Metropolitan City (BMC) and to establish reference information for the management of the coastal forest in BMC in the future. We set up 97 plots with an area of $100m^2$ each for the analysis and investigation of the vegetation characteristics. The analysis using the TWINSPAN and DCA techniques found seven community groups: Pinus thunbergii-Quercus aliena community, Pinus thunbergii-Eurya japonica(1) community, Pinus thunbergii-Eurya japonica(2) community, Pinus thunbergii-Quercus serrata community, Pinus thunbergii-Camellia japonica(1) community, Pinus thunbergii-Camellia japonica(2) community, and Pinus thunbergii-Eurya japonica-Camellia japonica community. According to the analysis of vegetation structure, Pinus thunbergii was a main dominant species at the canopy layer in all sites while Eurya japonica and Camellia japonica were dominant species at the understory layer. Pinus thunbergii-Quercus serrata community is predicted in the forest succession because of the competition between Pinus thunbergii and Quercus serrata in the canopy layer and the understory layer. As such, it is necessary to observe changes by continually monitoring this community. Tree species with strong salinity tolerance, including Pinus thunbergii, have formed community groups because of the environmental characteristics of coastal forests, strong with salinity tolerance species are forming community groups. Therefore, all community groups except for the Pinus thunbergii-Quercus serrata community will maintain the current vegetation structure unless drastic environmental changes occur.

An Analysis of the Message on Internet Fashion Brand's Community - Focused on Brand Reneevon - (패션 브랜드의 인터넷 커뮤니티 메시지 유형 분석 - 브랜드 레니본을 중심으로 -)

  • Son, Hee-Jung;Yu, Ji-Hun
    • The Research Journal of the Costume Culture
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    • v.17 no.5
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    • pp.791-806
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    • 2009
  • Internet brand community's message makes significant contributions for fashion industry. Therefore, if we understand and implement the characteristics of the message on the Internet brand's community, it can be useful for future marketing strategy. This study was to classified the internet community and to examine messages with regard to direction, write motive and prior knowledge. The messages were taken from February, 20th, to August, 7th in 2008. Content analysis method was used for this study. The results were as follows: First, Fashion brand community divided into user initiative type and enterprise establishing type. Second, User initiative type had positive direction message more than enterprise establishing type had. Third, User initiative type had large volumes of information searching or sharing related message, but enterprise establishing type had large quantities of personal experience related message about write motive. Fourth, There was no difference numerical prior knowledge between user initiative type and enterprise establishing type, and then both had a high rate of prior knowledge.

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The Effect of Health Behavior and Oral Health Behavior on Community Periodontal Index in Korean Adult (한국성인의 건강행위와 구강건강행위가 치주조직병자율(CPI)에 미치는 영향)

  • Bok, Hye-Jeong;Ahn, Bun-Sook;Lee, Hee-Sung
    • The Korean Journal of Health Service Management
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    • v.7 no.2
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    • pp.93-100
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    • 2013
  • This study sought to explore the relationships between health behavior, oral health behavior and community periodontal index away the adult in korea. The date of 'The fifth korean national health and nutrition examination survey 2010' was analyzed for this study. The questionnaire was measured regarding health behavior, oral health behavior, community periodontal index and socio-economic characteristics. For statistical analysis, the SPSS 19.0 for Windows was used. We determined frequencies, percentage and determining statistical significance using multiple regression analysis. General characteristics showed differences in community periodontal index associated with residence, gender, age, income level, education, division of basic livelihood security. Health behavior showed differences in community periodontal index associated with smoking, AUDIT. Oral health behaviors showed differences in community periodontal index associated with dental care treatment, utilization of dental hospitals, dental check up, tooth brushing, use oral health supplies. In conclusion, in order to reduce community periodontal index of the adult, the importance and needs of periodontal status should be emphasized. periodontal status related education and program for the adult should be operated.

An Analysis of the Characteristics of the Transition Trand of the Multi-family Housing Theory by Planning Community Units - Focused on the new town planning in Korea - (생활권 개념의 변화에 따른 주거지 계획의 시기별 특성 변화 - 국내 신도시 및 신시가지 계획을 중심으로 -)

  • Yi, Jong-Hwa;Koo, Ja-Hoon
    • Journal of the Korean housing association
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    • v.20 no.4
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    • pp.79-88
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    • 2009
  • A planned access method on constantly-changing-community unit plan changes and develops based on the periodical situation and also plan theory. In this research, it is to present the link between the theory of complex city change and the plan factor of it, and to show how Korean residential complex plan has changed as time passed and how new concept of city plan came up and by applying new methods how can this affect our real world and the past plan. In the phase of analysis, it analyzed the flow of 'community unit plan' and its theory and investigated the factor of compositional space and built a analysis frame. The factors of community unit plan are space structure, size and shape of block, population, distribution of facilities and movement system. It chose the place that can represent the flow of community unit plan trand and that indicates the obvious development leading to Jamsil (1975), Gwa Chun (1980), Mok Dong (1983), Sang Ge (1985), Ilsan (1989), Dong tan (2001) and Eun Jung (2003) total of 7 places. And to compare a similar size of the city, it selected a small community unit. Based on the result of theoretical study and prior research, it can be said that the space composition style has change from a whole complete complex area to a linked-cross over community unit and the access of urban level was on set. Also, a pedestrian walking area was secured and the dense of building structure and pleasant environment wanting need was in balance. For facility plans, the usage of facility and functional change brought change of type, size and disposition. The walking area for pedestrian became a huge matter. Therefore, market, education, public facilities and green system collaborated to co-build a whole community unit and activated the walking environment. Also, public transportation, environment friendly city organization was built.

Social Network Anaylsis of Collaborative Activity in Rural Community - Case study of Hong-Dong area in Chungman Province, South Korea - (농촌 공동체 협업활동의 사회연결망분석 - 충남 홍성군 홍동 지역을 중심으로 -)

  • Hwang, Baram
    • Journal of Korean Society of Rural Planning
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    • v.23 no.2
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    • pp.9-17
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    • 2017
  • Rural development policy has changed from hardware based development to community revitalization. The purpose of this study is to analyze social network of collaborative activity among rural organizations as fundamental of community. The material used in this study is a record of collaborative activites in the community newsletter of Hong-Dong area. 161 of collaborative activities (links) and 75 of organizations (nodes) are investigated in network. 6 collaborative activity type ('Education', 'Socializing', 'Meeting', 'Culture', 'Event' and 'Labor') is classified. 'Socializing' is inclusive of approximately half of whole network (50.67%). Closeness centraization, degree centralization and betweenness centralization are measured on top in 'Education', 'Meeting' and 'Event' type. Scatter plot analysis using degree and betweenness centrality index, 'Maeul Revitalization Center', 'Balmak Library', 'Woori-Maeul Medical Co-op', 'Support Center for Female Farmers', 'Hongdong Middle School' and 'Mundang Sustainable Agriculture Education Center' are resulted as the core organization in network. Geographical distribution of collaborative activity is not only concentated in Hong-Dong Myeon but also networked with adjacent administrative district. This study finds its purpose in the detailed analysis of network characteristics of collaborative activity within Hong-Dong area which is representative developed rural community in Korea.