• Proceedings of the Korean Society of Developmental Biology Conference
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• 2001.02a
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• pp.12-13
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• 2001

과학자들 사이에서만 논의되어 왔던 내분비계 장애물질 문제가 일반인들의 관심을 얻게 된 것은 T.Colborn, D.Dumanoski와 J.P.Myers가 과학논문을 근거로 집필한 '도둑맞은 미래(Our Stolen Future)'의 발간이 계기가 되었다 (1996년 1월). 그 후 컵라면 용기에서의 styrene dimers & trimers 검출 논란이 제기되면서 일본 및 우리나라에서도 관심을 갖게 되었는데, 이제 내분비계 장애물질 문제는 단순한 과학적 문제가 아니라 중요한 사회적, 환경적 문제로 인식되고 있으며 지구 온난화, 오존층 파괴와 더불어 지구 3대 환경 문제 중 하나로까지 거론되고 있다. 내분비계 장애물질 문제는 아직까지 명확히 규명되지 않은 상태로 인체에 미치는 영향을 밝히기까지는 장기간의 집중 연구가 필요하다. 여기서는 내분비계 장애작용 검색 및 시험법 확립을 위한 현 시점에서의 국제적 노력에 대하여 미국 EPA 및 OECD를 중심으로 알아보고 OECD 내분비계 장애물질 시험법 확립을 위한 국제협력연구의 일부 실험결과를 발표하고자 한다.

• Proceedings of the Korean Information Science Society Conference
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• 2012.06c
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• pp.104-106
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• 2012

다양한 그래프 문제들은 대부분 NP-완전 문제로, 그 중 하나인 독립집합을 구하는 문제 또한 최적의 알고리즘이 존재하지 않는다. 따라서 규모가 큰 대용량 그래프 데이터로 독립집합 문제를 처리하기 위해서는 많은 시간과 비용이 소요된다. 이를 효율적으로 해결하기 위해 분산 환경에서 그래프 처리에 적합한 모델인 Pregel을 이용하여 독립집합 문제를 푼다. 이를 위해 정점 사이의 메시지 전달에 따른 정점 상태 변환 방법을 이용하여 분산 병렬 환경에 알맞은 알고리즘을 제안한다.

• Korean Journal of Cognitive Science
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• v.10 no.1
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• pp.1-11
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• 1999

Agent-based systems technology has generated lots of excitement in these years because of its promise as a new paradigm for conceptualizing. designing. and l implementing software systems Especially, there has been many researches for multi agent system because of the characteristics that it fits to the distributed and open Internet environments. In a multiagent system. agents must cooperate with each other through a Coordination procedure. when the conflicts between agents arise. where those are caused b by the point that each action acts for a purpose separately without coordination. But P previous researches for coordination methods in multi agent system have a deficiency that they can not solve correctly the cooperation problem between agents which have different goals in dynamic environment. In this paper. we solve the cooperation problem of multiagent that has multiple goals in a dynamic environment. with an automatic cooperative coordination model using I reinforcement learning. We will show the two pursuit problems that we extend a traditional problem in multi agent systems area for modeling the restriction in the multiple goals in a dynamic environment. and we have verified the validity of the proposed model with an experiment.

• Journal of Convergence for Information Technology
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• v.11 no.3
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• pp.147-158
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• 2021

The purpose of this study is to perform of composition of young children teacher's verbal interactions and problem solving strategies by semantic network analysis. The data was collected the narrative of teacher in young children's environmental education. Additionally, this study used categories as a unit of analysis in order to find out structural characteristics. The results of this study were as follows. First, teacher's verbal interactions, providing information was the most cental, high influence appeared along with integration. Second, teacher's problem solving strategies, suggestion was the most cental, high influence appeared along with divergent thinking. Third, teacher's verbal interactions and problem solving strategies, suggestion was the most cental, providing information and divergent thinking appeared a strong connection. Besides, suggestion and decision were mediated by concern of problem, assessment appeared connection. Through these results from this study it is suggested that in order to interact and support problem solving process in young children's environmental education, teacher education to respond and understand contextually with young children is necessary.

• Journal of the Korean Geographical Society
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• v.39 no.6 s.105
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• pp.933-954
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• 2004

This paper considers critically the conceptual development of international environmental security, and to explore some limitations which seem to have made difficult the construction of regional environmental governance among North-East Asian countries. The recently emerging concept of environmental security has turned the traditional or realistic meaning of security to the neo-liberal and the political-economic one. On the basis of a reconsideration of these newly developed meanings of security, this paper has reviewed critically some work which have focused on the concepts of environmental regime and of environmental governance. To formulate a true environmental governance, it is suggested that we need a theoretical analysis on the economic and political contexts and a practical development of civil society. From this point of view, the economic structure of labour division, the political tension and military opposition in the region, and the immaturity and exclusiveness of civil consciousness can be pointed out as some limitations of environmental security to be constructed in the North-East Asian region. A true environmental security in this region requires formation of reciprocal economic relationship, development of regional institutions for political trust among countries, and improvement of interaction between non-governmental organizations (NGOs).

• The Journal of the Korea Contents Association
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• v.4 no.3
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• pp.41-51
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• 2004

The objectives of this study is to suggest marketing strategies directed of retroactive-socialized parents who have environmental-educated children at school. For this purpose, this study based on the consumer socialization agent such as family and demographic variables were studied. The scope of this study includes attitudes toward price and advertising, and interests related to environmental problems and environmental-products preference. As a result, The parents of environmental-educated children get much more environmental information and show favorable buying behaviors for environmental-products. Most of parents who get environmental information from children educated at school show favorable attitude towards the advertising and also show more preference to environmental-products and more frequent communication among family members. Parents who have environmental-educated children were insensitive to price, more consciousness about environmental problem and flexible to change in their buying behaviors. In conclusion, This study shows that behaviors of children had a significant influence on buying behavior of parents.

• Journal of the Korean Society of Earth Science Education
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• v.15 no.1
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• pp.117-131
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• 2022

The purpose of this study is to develop a board game design activity for environmental education and to investigate how it affects high school students' environmental knowledge, environmental literacy, and creative engineering problem solving propensity. Twenty-five freshman and sophomore students belonging to the environmental club participated in this study. The board game activity was designed as 10 class hours lessons based on the engineering design process. The main data source of this study was pre-post students' conceptual maps of the environmental topics (global warming or ecosystem destruction) to measure the background knowledge on the topic. In addition, the environmental literacy measurement questionnaire and the creative engineering problem solving propensity questionnaire were collected before and after the activity. The result shows that the number of environment-related words described by the students on the post-concept map increased compared to the pre-concept map. In addition, the environmental literacy score and the creative engineering problem-solving propensity score increased significantly after performing the board game design activity. The results show that environmental lessons using board game design activities can help student develop various competencies in a good way. As above, research that combines board games and secondary education must be activated, and a new educational method and systemic support for in-service teachers who want to apply it to science classroom is required.

• Journal of Korean Home Economics Education Association
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• v.15 no.3
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• pp.45-57
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• 2003

The purpose of this study is to examine Pro-environmental consumer educational needs in the middle school. The data for the analysis are collected by the structured questionnaires. The data for 426 middle school students living in Seoul are analyze using descriptive statistics and One-way ANOVA. The following is a summary of major findings. : 1) The needs for the middle school students for the pro-environmental consumer education are high. The content showing the highest educational need is "The purchasing behavior of pro-environmental goods and services". 2) The sex of students. the experiences of taking 'Environment class', and types of housing are the factors affecting 'The pro-environmental consumer education needs' of the middle school students.

• Journal of the Korean association of regional geographers
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• v.9 no.3
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• pp.297-313
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• 2003

Problems caused by the U.S. military bases have attracted little attention until recently due to the national security of S.Korea and the peace of North-Eastern Asia, emphasized from the perspective of macro-geopolitics. However, since the political regime has been democratized and political discourses have been liberalized from the 1990s, those problems become a nation-widely serious social issue, though they have been brought about on the local areas. Thus, it can be suggested that micro-geopolitics is highly relevant and significant in approaching the local problems caused by the U.S. military bases, and ultimately resolving the macro-geopolitical problem of longstanding unfair relations in the SOFA and the withdrawal of U.S. troops. This paper aims to consider local problems caused by the U.S. military bases and resolving strategies from the perspective of micro-geopolitics. First of all, it discusses some significance of the micro-geopolitical perspective, as it has been recently emphasized in political geography in considering local problems and politics of life on the basis of place, then looks on empirically criminal and environmental problems caused by the U.S. military bases, analyses the questionnaire date on the perception of local dwellers around the military camps in Nam-gu Daegu, and finally suggests strategies to resolve those problems, which level up from the micro to the macro-scale of geopolitics.

• Proceedings of the KGS Conference
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• 2003.11a
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• pp.267-272
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• 2003

일반적으로 도시화(urbanization)란 도시지역으로 인구가 집중되어 결과적으로 국가 전체인구 중 도시지역에 거주하는 인구의 비율이 증가되는 과정이라고 정의될 수 있다. 이러한 도시화는 환경문제를 비롯하여 실업, 질병 둥의 여러 문제를 야기 시키고 있다. 따라서, 도시화가 미치는 영향을 고려해 볼 때, 지속 가능한 도시성장을 위해 도시가 어떻게 성장해 왔는가를 분석하고, 도시성장을 예측하며, 이에 대한 적절한 대안을 모색하는 것은 도시관리를 위해 매우 중요한 문제이다(강영옥ㆍ박수홍, 2000). (중략)