• Proceedings of The Korean Society of Health Promotion Conference
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• 2007.04a
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• pp.263-265
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• 2007

• Korean Journal of Child Studies
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• v.24 no.4
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• pp.1-14
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• 2003

The daily hassles of 5-year-old children were explored and analyzed as microsystems in order to discover the relative importance of ecological factors in children's daily hassles. The subjects were 322 children, their mothers and 34 teachers recruited from 5 kindergartens and 15 child-care centers in Seoul and Kyonggido province. Children were interviewed individually with pictures showing certain stressful situations. Questionnaires were administered to mothers and teachers. The findings indicated that the microsystem variables of Kindergartens and child-care centers were the most significant factors explaining children's daily hassles. Therefore, it was suggested that the policies and regulations on child-care facilities be carefully developed and strictly regulated.

• Journal of Korean Society of Forest Science
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• v.58 no.1
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• pp.101-110
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• 1982

첫째, 산지자원화(山地資源化)의 정의(定義)를 정립(定立)해 보았고 둘째로 초지조성(草地造成)의 현황(現況)을 고찰하여 부실초지(不實草地)가 되었던 원인 중 삼림생태학적(森林生態學的)인 측면(側面)에서의 실패요인(失敗要因)을 검토(檢討)하여 보았다. 세째, 우리나라 삼림생태학적(森林生態學的)인 측면에서 초지조성(草地造成)이 성공할 수 있기 위해서는 어떤 방향으로 계획(計劃)을 수립(樹立), 추진(推進)하는 것이 바람직할 것인지에 대해 몇가지 문헌을 기초로 하여 고찰하여 보았다. 그 결과 과거(過去)의 초지조성(草地造成)이 부실(不實)하였던 원인(原因)을 제거할 수 있고, 임업인(林業人)들이 우려하는 초지(草地)가 또다시 황폐지(荒廢地)로 되돌아 갈 악순환(惡循環)의 전철을 답습(踏襲)하지 않고 산(山)도 웃고, 하천(河川)도 웃고, 초지(草地)도 웃을 수 있는 즉, 국민경제향상(國民經濟向上)과 복지증진(福祉增進)에 이바지할 수 있도록 우리나라 입지환경(立地環境)에 알맞은 초지조성모형(草地造成模型)(가칭 한국형(韓國型) 초지조성모형(草地造成模型)) 일초지구(一草地區)와 수림대(樹林帶)가 지형(地形)과 입지환경(立地環境)에 알맞게 적절히 배치(配置)될 수 있는 방법(方法)의 연구(硏究)가 시급한 것으로 사료되었다.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.31 no.1
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• pp.29-40
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• 2013

The object of this research is to elicit the ecological wetland's creating and maintaining conditions through GIS and AHP(Analytic Hierarchy Process) on common characteristics of wetland, by exploring the function of the long-standing and naturally created wetlands in South Han-river basin. Geomorphological, geologic, hydraulic & hydrological, pedological, environmental & ecological approaches of five categorizations were made based on the documents and precedent studies in order to perform the research object. Elicitation of the common creating and maintaining conditions on the objected wetlands through analysis of satisfactory conditions was conducted by performing an overlay analysis from the gathered information in each category and linking its result to each wetland. Also, elicitation of highly believable qualified analysis result was made by calculating the each factor's weight through application of AHP analysis method on each factor. The research result is expected to be applied effectively in suitability selection for creation of an artificial wetland and restoration and maintenance for naturally created wetlands when introducing the No Net Loss of Wetlands. In addition, with a new understanding on wetland and beyond the value of its conservativeness, this research result can be considered as a solution for Eco-Wetland's maintainable development.

• Journal of Agricultural Extension & Community Development
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• v.21 no.3
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• pp.25-52
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• 2014

The purpose of this study was to examine the motives of tourists who visited ecotourism villages in Korea. A self-administered survey was obtained from 254 visitors in six ecotourism villages. As for the motivations of ecotourism village visitors, four factors ('relaxation', 'adventure', 'experience natural' and 'family togetherness') were extracted. Three distinct segments were identified based on the motivation : multipurpose seekers (45.3%), relaxation seekers (34.6%), family togetherness seekers (20.1%). Socio-demographic characteristics and tourism behaviors of each segmentation were also analyzed. The findings should be of interest to practitioners of ecotourism village marketing and operation.

• Korean Journal of Environmental Biology
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• v.24 no.4
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• pp.372-379
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• 2006

In order to study temporal fluctuation and ecological characteristics of Noctiluca scintillans, its abundance was investigated in correlation with water temperature, salinity, precipitation, chlorophyll a concentration and copepods abundance in the coastal waters of Incheon from January 1999 to December 2000. N. scintillans was seasonally abundant during spring and autumn with temperature ranging from 10.3 to $21.5^{\circ}C$, but depleted in winter and summer. Low temperature below $4.5^{\circ}C$ in winter and low salinity due to high rainfall in summer led N. scintillans to disappear. A Cross Correlation Analysis (CCA) showed that chlorophyll a concentration was positively correlated with abundance of N. scintillans at the time lags of 10 days. This suggests that phytoplankton may be a contributing factor for increasing abundance of N. scintillans. During spring, eggs of Acartia hongi were found in 2.9 to 21.1% of individuals of N. scintillans. It was deduced that 1.2 to 49.5% of the eggs produced by A. hongi was preyed upon by N. scintillans. Therefore, N. scintillans may control the population size of initial developmental stage of A. hongi in the costal waters of Incheon.

• Korean Journal of Environment and Ecology
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• v.25 no.2
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• pp.235-246
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• 2011

This study explored the relationship between connectedness to nature (CN) and belief on consequences (social, economic, and ecological) of establishing cable car and supportiveness to its establishment in a natural park. It also examined the relationship between socio-demographic and visiting characteristics and CN. Data were collected from 134 visitors in Mudeungsan Provincial Park (MPP) in September, 2010 through field questionnaire survey. CN was measured by using a connectedness to nature scale (CNS) revised from the Mayer and Frantz's (2004) original CNS. CN consisted of two factors: interdependence and independence. CN increased as respondents' age, education level, number of visits to MPP and number of visits to Jungbong area of MPP increase. Respondents with higher CN ratings showed stronger beliefs on negative consequences of the cable car establishment. CN, however, was not related with beliefs on positive consequences of establishing cable cars. Respondents with higher CN showed lower support about establishing cable cars.

• Korean Journal of Cognitive Science
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• v.30 no.4
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• pp.199-217
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• 2019

Evolutionary research on mental disorders is relatively difficult compared to other medical studies. It is because the cause of mental disorder is unclear relative to other medical diseases, various proximate causations are involved. And it is difficult to distinguish cause and effect and to carry out experimental research. Despite these methodological difficulties, it is possible to establish an evolutionary hypothesis on mental disorders based on constructive reductionism, and to demonstrate actual data on the model based on this hypothesis. In this paper, I will discuss some conceptual definitions needed for applying ecological approaches to evolutionary psychiatric research. We will first discuss the appropriate level of explanations and the scope of the study subjects, then discuss the conceptual definition of behaviour and function, dysfunction and the appropriate level of selection.

• Proceedings of the Korea Information Processing Society Conference
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• 2014.04a
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• pp.536-539
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• 2014

본 논문에서는 생명체 간의 상호작용으로 형성된 안정된 생태계의 요인을 분석할 수 있는 계산 시뮬레이션 모델을 제안한다. 그리고, 실제 시뮬레이션 프로그램을 개발하고 이를 통해 얻은 실험 결과를 제시함으로써, 계산 시뮬레이션 분야와 생명과학 분야의 융합 가능성을 보인다. 제시한 계산 시뮬레이션 모델은 1) 하나의 커다란 생태계로 이루어진 세계, 2) 다수의 작은 생태계로 이루어진 세계, 3) 생태계가 미형성된 세계를 유전 알고리즘을 사용하여 모델링 하였으며, 실험 결과는 2)번 모델이 생태계를 가장 안정적인 상태로 오래 유지하는 결과를 보였다. 이를 통해서 충분한 에너지가 존재하거나 공급되는 환경에서는 생물 밀도가 높으면서 에너지 순환이 빠른, 작은 규모의 생태계가 가장 안정적이라는 생물학적인 결론을 도출할 수 있었다.

• Korean Journal of Ecology and Environment
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• v.51 no.1
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• pp.16-28
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• 2018

Although physiological and ecological characteristics of cyanobacteria have been studied extensively for decades, unknown areas still remain greater than the already known. Recently, the development of omics techniques based on molecular biology has made it possible to view the ecosystem from a new and holistic perspective. The molecular mechanism of toxin production is being widely investigated, by comparative genomics and the transcriptomic studies. Biological interaction between bacteria and cyanobacteria is also explored: how their interactions and genetic biodiversity change depending on seasons and environmental factors, and how these interactions finally affect each component of ecosystem. Bioinformatics techniques have combined with ecoinformatics and omics data, enabling us to understand the underlying complex mechanisms of ecosystems. Particularly omics started to provide a whole picture of biological responses, occurring from all layers of hierarchical processes from DNA to metabolites. The expectation is growing further that algal blooms could be controlled more effectively in the near future. And an important insight for the successful bloom control would come from a novel blueprint drawn by omics studies.