• Journal of Korean Society of Transportation
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• v.18 no.6
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• pp.33-43
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• 2000

Residential streets play an important role not only as a Place for moving but also as a place for social interactions among urban residents. Social interactions among urban residents are critical factor to draw sense of confidence and communality, and community spirit from the residents. Social interactions among community residents, however, are getting restricted severely by automobile traffic in the residential area. This study shows that the level of social interactions among the residents decreases substantially as traffic volume increases in the area. Other daily activities such as relaxing. playing with children, exercising, and doing small works in the street which can caused social interactions among the residents are also decreased as the volume of automobile traffic increases. Residents living in the area of heavier traffic volume perceive more strongly that automobile traffic is the major reason which deters them from interacting socially each other.

• The Journal of the Korea Contents Association
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• v.16 no.7
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• pp.465-475
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• 2016

The incidence of inflammatory bowel disease(IBD) has increased continuously in worldwide, but no cure have been discovered. The etiology of IBD may include various factors such as genetics, epigenetic, environment as well as host immune system. Among the environmental factors of IBD, diet heavily influences gut health, especially non-digestible dietary fiber can have a great impact on selective growth of beneficial gut microbiota called probiotics. Seaweeds have been consumed in Asia countries and are a rich source for dietary fiber. Accumulated data have suggested the possibility of utilizing seaweed derived oligosaccharides as prebiotics to prevent IBD and its recurrence. In this review, seaweed derived oligosaccharides such as fucoidan and laminarin regarding gut health and potential therapeutic tools for IBD will be discussed based on studies conducted in vitro and in vivo models.

• Proceedings of the Korean Information Science Society Conference
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• 2006.06a
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• pp.391-393
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• 2006

인터넷의 급속한 확산과 대량 정보의 이동은 문서의 요약을 더욱 필요로 하고 있다. 본 논문은 비음수 행렬 인수분해로(NMF, non-negative matrix factorization) 얻어진 비음수 의미 가변 행렬(NSVM, non-negative semantic variable matrix)을 이용하여 자동으로 포괄적 문서요약 하는 새로운 방범을 제안하였다. 제안된 방법은 인간의 인식 과정과 유사한 비음수 제약을 사용한다. 이 결과 잠재의미색인에 비해 더욱 의미 있는 문장을 선택하여 문서를 요약할 수 있다. 또한, 비지도 학습에 의한 문서요약으로 사전 전문가에 의한 학습문장이 필요 없으며, 적은 계산비용을 통하여 쉽게 문장을 추출할 수 있는 장점을 갖는다.

• The Journal of the Korea Contents Association
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• v.8 no.8
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• pp.158-175
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• 2008

In recent years it seems to be accepted as absolutely right by almost all the people in the world that person without disabilities and person with disabilities are equal and should be treated so regardless of their race, national origin, sex, religion, disability, etc. This article deals with (1) "Anti-Discrimination against and Remedies for Persons With Disabilities Act" and (2) Human Rights of Persons With Disabilities. The purpose of "Anti-Discrimination against and Remedies for Persons With Disabilities Act" is to realize the human dignity and worth of persons with disabilities by prohibiting disability-based discrimination in all areas of society, and effectively safeguarding the rights of individuals discriminated based on disability, thus enabling them to fully participate in society and to secure equal rights.

• Proceedings of the Korea Contents Association Conference
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• 2008.05a
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• pp.221-227
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• 2008

In recent years it seems to be accepted as absolutely right by almost all the people in the world that person without disabilities and person with disabilities are equal and should be treated so regardless of their race, national origin, sex, religion, disability, etc. This article deals with (1) "Anti-Discrimination against and Remedies for Persons With Disabilities Act" and (2) Human Rights of Persons With Disabilities. The purpose of "Anti-Discrimination against and Remedies for Persons With Disabilities Act" is to realize the human dignity and worth of persons with disabilities by prohibiting disability-based discrimination in all areas of society, and effectively safeguarding the rights of individuals discriminated based on disability, thus enabling them to fully participate in society and to secure equal rights.

• Clinical and Experimental Reproductive Medicine
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• v.33 no.3
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• pp.171-178
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• 2006

Objective: Human embryonic stem (ES) cells have a great potential in regenerative medicine and tissue engineering. The human ES cells could be differentiated into specific cell types by treatments of growth factors and alterations of gene expressions. However, the efficacy of guided differentiation and isolation of specific cells are still low. In this study, we characterized isolated cells from differentiated human ES cells by magnetic activated cell sorting (MACS) system using specific antibodies to cell surface markers. Methods: The undifferentiated hES cells (Miz-hESC4) were sub-cultured by mechanical isolation of colonies and embryoid bodies were spontaneously differentiated with DMEM containing 10% FBS for 2 weeks. The differentiated cells were isolated to positive and negative cells with MACS system using CD34, human epithelial antigen (HEA) and human fibroblast (HFB) antibodies, respectively. Observation of morphological changes and analysis of marker genes expression were performed during further culture of MACS isolated cells for 4 weeks. Results: Morphology of the CD34 positive cells was firstly round, and then it was changed to small polygonal shape after further culture. The HEA positive cells showed large polygonal, and the HFB positive spindle shape. In RT-PCR analysis of marker genes, the CD34 and HFB positive cells expressed endodermal and mesodermal genes, and HEA positive cells expressed ectodermal genes such as NESTIN and NF68KD. The marker genes expression pattern of CD34 positive cells changed during the extension of culture time. Conclusion: Our results showed the possibility of successful isolation of specific cells by MACS system from undirected differentiated human ES cells. Thus, MACS system and marker antibodies for specific cell types might be useful for guided differentiation and isolation of specific cells from human ES cells.

• Korean Journal of Social Welfare
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• v.66 no.1
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• pp.139-162
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• 2014

This paper critically examines the existing discourses about 'relationship', a key element of social work practice and questingly examines Lao-tzu's work of Tao Te Ching, the book of way and virtue, as an alternative theoretical framework for social work relationship. Compared to current discourses of relationship beleaguered by either modernism or postmodernism, both of which are in the deadlock of binary perspective, the insights and vision in Tao Te Ching are successfully able to overcome the limits of them and provide new and profound way of thinking about human, society and their relationship. Especially core cannons crystallized by natural humanistic concepts for cosmos coupled with innate critical power against artificial manipulations of world can extend the horizon of understanding concerning the relationship between client and social workers and therefore provide a new and attractive roles in professional relationship. Moreover, opposed to usual images of Lao-tzu's ideas such as nihilism and passivity, alternative relationship of social work can play an important role of caring the disordered reality where Dao disappered and criticise the selfish desires of individuals and comport the broken-hearted minds in modern society. In addition, results of this paper implies that more extended study articulating ideas of Tao Te Ching with the social work practice would have lots of potentials to promote later researches in quest of 'Korean' social work practice.

• Survey Research
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• v.9 no.2
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• pp.85-118
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• 2008

There have been a great many ups and downs in Korean Credit Card Industries after 2000. It is certain that each Credit Card Company copes with the situations by means of its organizational capabilities. According to the evolutionary view of Institutionalism, a company's capabilities are composed of every day routines, codes, rules, learning(by doing, using, interacting) and decision makings. The purpose of this article is to verify how two Korean Credit Card Companies showed their strategic differences and what factors exposed each company's own limits. To examine the company's ordinary conducts, this study used Q methodology with a random sample of 16 members from each company. Especially from the results of Q factor analysis, it becomes clear that each company still takes a serious view of the economy of scale rather than the innovation or improvement of organizational and relational dynamics.

• Journal of the Korean Geographical Society
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• v.48 no.6
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• pp.929-943
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• 2013

This paper examines the evaluation and categorization of national heritage 'Myeongseung(scenic places)' from the viewpoint of world heritage concept and its criteria. This study focuses on Myeongseung because the author thinks it implies the unique human-nature relationships that have been evolved in Korean Peninsula, and then draws some pending problems with the evaluation of those heritage. Formerly, the paper discusses theoretically the outcome and point at issue on concept, criteria, evaluation of world heritage, and then proposes three issues on the evaluation and categorization of national heritage 'Myeongseung': first, the establishment of basic concept for evaluation of heritage; second, the building of unified criteria list to cover both natural and cultural heritage; and third, the reorganization of categories for the advanced registration and management. Especially, the author emphasizes that it is necessary rather to extend actively the world heritage concept than to regard it as a fixed framework.

• 한국해양학회지
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• v.3 no.2
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• pp.63-72
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• 1968

해양에 있어서의 생물체의 에너지 순환, 즉 해양에 있어서의 생산체계에서 이중 먼저 기초생산체계만이라도 그 전상을 파악하자는 일은 먼 옛날부터 해양생물학자들의 진지하고도 끊임없는 추구대상이었다. 해양에는 막대한 양의 바닷물이 잠겨있고, 이곳에는 엄청난 양의 생명체가 함양되어 있으며, 이것들은 피포식자-포식자의 계열에서 어떠한 균형상태를 이루고 있는가하는 문제는 극히 흥미가 진진한 문제이다. 해양에 함양되는 무수한 생명체들은 간단없이 명멸, 소장만을 거듭하고 있다는 시적인 형용과 연상은 한층 더 구체화되어야 한다. 이러한 경향은 또한 근래의 세계인구의 격증에 대비하는 인간의 식량조달의 필요상, 해양이 지닌 잠재적인 식량생산의 여력을 재평가하자는 기운에서 한층 더 박차가 가해졌었다. 식량생산의 보고로서 해양에 주어진 책무는 크기만 하다. 해양에 잠겨있는 막대한 양의 바닷물은 긴 년월에 걸쳐 자연이 조제한 훌륭한 하나의 배양액이라고 불수 있고, 이것의 다각적인 이용개발은 지금부터 시작되었다고 해도 과언이 아니다. 근래에 이르러 각종기구 및 측기의 발달에 따라 해양의 물리, 화학 및 생물학적인 미세구조가 점차적으로 해명됨에 따라 해양학에 있어서의 고전적이고 전통적인 개념에 수정을 강요하는 사태가 적지않게 일어나고 있다. 해양의 기초생산체계에 대한 개념도 크게 비약하고 있으며, 해양에 있어서의 식물플랭크톤->동물플랭크톤->소형동물->어류를 연결하는 일방통행적인 식물연쇄개념을 크게 확대하고 비약시키지 아니하면 안될 여러 가지 사실이 들어나고 있다. 해양의 생물생산계의 기초적인 역할을 하는 것은 식물플랭크톤, 데트리타스 (detritus)등을 포함한 미소현탁물이라는 것은 틀림이 없으나, 이것들이 생명물질 기워니 아니드라도 물리현상으로 일어나는 기포를 매개로 하여 생성할수 있는 가능성이 제시되었다. 여기서는 이러한 해양의 미소현탁물에 관한 연구에 대해서 그 의의와 연구결과를 요약 소개하여 해양학도들의 참고로 한다. 이 종설을 꾸미는데 Jorgensen(1962), riley(1963), Parsons(1963), 서택(1966)등의 같은 토픽스에 관한 종설을 많이 참고로 한 것을 부기한다.