• Journal of the Korean Geographical Society
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• v.42 no.4
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• pp.601-615
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• 2007

Many Korean migrants in Japan have established small businesses using their ethnic networks as they were discriminated and excluded from Japanese society and labour market. The aim of this study is to explore the changes in characteristics of Korean migrants' businesses by generation, focusing on the role of co-ethnic relationships including ethnic networks and resources on their businesses. This study analyzed Korean migrants' dependence of the ethnic resources to understand the relationship between the ethnic. When Koreans first moved to Japan, laborers amounted the most, but the number of the professionals and the small business owners has increased gradually. This change was influenced by the change of generation and the improvement of education, as well as recognition of Japanese society and the change of policies toward Korean migrants in Japan. In early times when the number of small business owners started to increase, many cases such as a business, an employment, the use of Korean banks used to depend on ethnic resources. Also there were many businesses of which main customers were Koreans. However, the dependence of the ethnic resources has become diverse as the structure of the occupation has changed. The maintenance or exclusion of co-ethnic relationship depends on the structure of society and economy, and its result affect the relationship between Korean migrants in Japan and Japanese.

• Journal of the Economic Geographical Society of Korea
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• v.16 no.2
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• pp.182-197
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• 2013

This paper deals with the relationship between cultural factor and economic factor in the spread of Hallyu(Korean Wave). To do so, the paper defines the traditional Hallyu items, drama and K-Pop, as 'cultural Hallyu' and other Popular industrial products such as electronics and mobile products as 'business Hallyu'. Based on this definition, the paper analyzes the relationship between the two Hallyu's in Thailand. The analysis has been conducted as follows. First, the paper describes the history of 'cultural Hallyu' and 'business Hallyu' in Thailand by reviewing their introduction and current situations in Thailand market. Secondly, using various aggregate data, the paper analyzes the causality of the two Hallyu's, focusing on the period of their Popularity and growth in Thailand. In addition to the macro-level analysis, the paper researched individual opinions of Thai people about the influence of Hallyu on the success of Korean companies, as well as about the influence of the Korean business companies on the success of Hallyu. This analysis has been conducted using the results of focus group discussion(FGD) of 17 Bangkok people. In both macro and individual level analyses, we found that the 'cultrual Hallyu' has influenced on the success of the 'business Hallyu' rather than vice versa. For further research, it is necessary to analyze the reciprocal influences and synergy effects between the 'cultural Hallyu' and 'business Hallyu'.

• Journal of the Economic Geographical Society of Korea
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• v.15 no.1
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• pp.26-41
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• 2012

This study investigates the time-space characteristics of intra-urban passenger flows in the Metropolitan Seoul area. In particular, we analyze the relationships between transit ridership and land use through the use of the subway passenger flow data obtained from the transit transaction databases. For this purpose, the strength of each subway station, i.e., the number of total in-coming and out-going passengers at each station, in the morning, afternoon, and evening, is calculated and visualized, which reflects urban land use patterns. Then the subway stations are classified into four groups via a hierarchical analysis of the in-coming and out-going passenger flows at 353 stations. Each group appears to have characteristic properties according to the region, e.g., residential areas and central business districts. This has been confirmed by the analysis which probes explicitly the relationship between the local socio-economic variables and station groups. This analysis, disclosing the inter-relationship between the subway network and urban land use, may be useful at various stages in urban as well as transportation planning, and provides analytical tools for a wide spectrum of applications ranging from impact evaluation to decision-making and planning support.

• Journal of the Korean association of regional geographers
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• v.22 no.4
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• pp.912-930
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• 2016

This paper suggests to bring the idea of social construction of nature or social nature discussed in social science including geography to geographical and environmental education for breaking traditional divide of people(or society) and nature. And this paper analyzed relationship between people and nature, meaning of environment and the concepts of social nature represented in the geography curriculum and textbook of England, Australia and Korea. Recently in terms of focusing disciplines or education on integration or convergence, introduction of social nature in teaching and learning geography and environment has an important implication. With rapid growth of capitalism, nature is constructed socially by the political, economical, social and cultural practice. Thus geography education reduces the distance between human geography and physical geography and needs to focus on exploring not just the relationship between people and nature but social construction of nature. Another implication of the introduction of social nature in teaching and learning geography and environment is that students can develop the relational sensitivity about the relationship people and nature or people and place.

• Journal of Plant Biotechnology
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• v.47 no.4
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• pp.298-308
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• 2020

Genetic diversity among Thaumatococcus daniellii populations in the southwestern region of Nigeria were assessed using morphometric and molecular markers to determine the population structure and existing genetic relationship for its improvement, conservation and sustainable utilisation. Populations from five locations in each of the six states were used for the study. Morphometric data were collected on folia characters and analysed for variability. Genome DNA was isolated from the plant leaf and amplified by polymerase chain reaction with inter-simple sequence repeat markers (ISSR) to determine the allelic polymorphism, marker effectiveness and genetic relationship of the population. The results showed significant variations in petiole length and leaf dimensions of the populations within and across the states. These morphometric traits are the major parameters that delimit the populations and they correlated significantly at P≤0.05. Analysis of the electrophoregram showed that the ISSR markers are effective for the diversity study. A total of 136 loci were amplified with an average of 7.16 loci per marker, 63.2% of the loci were polymorphic. The Principal Coordinate Analysis revealed that seven factors accounted for 81.6% of the variation and the dendrogram separated the populations into two major groups at a genetic distance of 10 (about 90% similarity) with sub-groups and clusters. Most populations within the state had a high degree of similarity, nonetheless, strong genetic relationship exists among populations from different states. The close relationship between populations across the states suggests a common progenitor, which are likely separated by ecological or geographical isolation mechanisms.

• Journal of Aquaculture
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• v.21 no.4
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• pp.346-350
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• 2008

RAPD analysis was examined to estimate the availability as a genetic marker. The availability was evaluated in terms of genetic divergence and relationships among Haliotis discus hannai, H. rufescens, H. rubra and H. midae in both hemispheres of the world. In results, RAPD analysis showed a clear genetic divergence between every pair of species. However, genetic relationships among the four species estimated by RAPD analysis unreflected to geographical distribution and morphological characteristics. In conclusion, RAPD is suitable genetic markers for estimates of genetic divergence and differences among abalone species.

• The Transactions of the Korea Information Processing Society
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• v.5 no.11
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• pp.2786-2796
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• 1998

Extraction of interesting and general knowledge from large spatial database is an important task in the development of geographical information system and knowledge-base systems. In this paper, we propose a spatial data mining system using generalization method; In this system, we extend an existing generalization mining and design a rulebase to support deriving new spatial knowledge. For this purpose, we propose an interleaved method which integrates spatial data dominated and nonspatial data dominated mining and construct a rulebase to extract topological relationship between spatial objects.

• Proceedings of the Korea Contents Association Conference
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• 2004.11a
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• pp.251-256
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• 2004

This paper will show examples and methods of spatial relationship operations that extract spatial information from satellite images. Geographical information system phenomena of complex and variant real world can abstract and implement simple features. The abstract features classify geo_objects and geo_field. The geo_object and the geo_field can represent vector and raster respectively. The raster based satellite image can use remote sensing applications. This paper needs topology operations and geometric operations for extracting the remote sensing. The spatial information transforms the raster based image to the vector based object, and extract from the spatial information. The extracted information will contribute on the application of the remote sensing satellite images.

• The Journal of Art Theory & Practice
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• no.10
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• pp.85-103
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• 2010

Mona Hatoum and community make unlikely bedfellows. From her beginnings as a teenage exile to her maturity as an internationally celebrated artistic nomad, Hatoum defies classification within any single geographical or cultural community. Attempting, however, to locate specific points of contact between her and certain communities in terms of artist-in-residence projects in which she participated might be a particularly fruitful way of circumventing her notorious critical resistance to identity and her refusal of homogeneity. This paper starts with Miwon Kwon's critique of contemporary practices in community-based art, which locate an essentialising force that isolates a single point of commonality and overlooks authentic differences. It then turns to Jean-Luc Nancy's reconceptualization of community as 'unworked' and 'being-in-common' to provide analytical tools for avoiding the dangers of essentialism. By examining the three residencies that Hatoum accepted in the mid-1990s in the light of Nancy's observations and theories, and by bringing the idea of artistic nomadism and that of community into juxtaposition, we hope to show that Hatoum succeeds in finding an equilibrium between art and community, and that this sheds new light on the issues raised in recent discussions on such relationship.

• ALGAE
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• v.31 no.4
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• pp.303-315
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• 2016

Compsopogon specimens collected in China were examined based on morphology and DNA sequences. Five molecular markers from different genome compartments including rbcL, COI, 18S rDNA, psbA, and UPA were identified and used to construct a phylogenetic relationship. Phylogenetic analyses indicated that two different morphological types from China clustered into an independent clade with Compsopogon specimens when compared to other global samples. The Compsopogon clade exhibited robust support values, revealing the affiliation of the samples to Compsopogon caeruleus. Although the samples were distributed in a close geographical area, unexpected sequence divergences between the Chinese samples implied that they were introduced by different dispersal events and from varied origins. It was speculated that Compsopogon originated in North America, a portion of the Laurentia landmass situated in the Rodinia supercontinent at approximately 573.89-1,701.50 million years ago during the Proterozoic era.Although Compsopogonhad evolved for a rather long time, genetic conservation had limited its variability and rate of evolution, resulting in the current monospecific global distribution. Additional global specimens and sequence information were required to increase our understanding of the evolutionary history of this ancient red algal lineage.