• 제목/요약/키워드: Environmental Studies

검색결과 9,754건 처리시간 0.04초

Bioprospecting in a Tropical Dry Deciduous Forest of Western Rajasthan, India

  • Kumar, J.I. Nirmal;Sajish, P.R.;Kumar, Rita.N.;Bhoi, Rohit Kumar
    • Journal of Forest and Environmental Science
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    • 제26권1호
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    • pp.25-30
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    • 2010
  • Bioprospecting has been widely used to assess the economic potential of different plant species and their value-addition. Prospecting for biological material like plants with medicinal or other economically valuable properties like fibre or oil is becoming a dynamic activity. Our folklore with embedded cultural heritage has tremendous possibilities and potential for bioprospecting. This forest region of Western Rajasthan is enriched with diverse vegetational wealth, if subjected to bioprospecting may prove to be a boon for the society.

DO미터를 활용한 초등학생 탐구중심 환경교육 프로그램 개발 -초등학교 6학년을 중심으로- (Development of the Inquiry-Based Environmental Education Program for Elementary School Students by Using DO Meter : Focused on the 6th Year Students of Elementary School)

  • 이민경;이두곤
    • 한국환경교육학회지:환경교육
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    • 제24권4호
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    • pp.11-31
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    • 2011
  • The purpose of this study was to develope an Inquiry-Based Environmental Education Program for Elementary School Students by Using DO meter based on the theory of the inquiry-based environmental education. The developed program consisted of 5 constituents of Environmental Studies for the Environmental Education (ESEE) and was applied to the 6th grade students of elementary school. The inquiry activities have been conducted around Gigyechon stream in Pohang city where the school was located. The evaluation form to evaluate the environmental education programs in the perspective of the Inquiry-Based Environmental Education was developed and used to evaluate after applying the developed programs. As a result, it was known that the developed programs have been well constructed and this program would help fostering the environmental understanding of the world. And also the inquiry-based environmental education was suitable for the environmental education targeting the elementary school students. This study has a significance in the perspective that the concept and the theory of inquiry-based environmental education has been realized into the program suitable for the elementary school students and that the new direction of the environmental education for the elementary school has been suggested. In addition, the developed evaluation form to assess the effectiveness of the program is expected to be helpful for the future studies related to development of the inquiry-based environmental education programs.

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Organic solvent exposure for the chronic kidney disease: updated systematic review with meta-analysis

  • Chaeseong Lim;Hyeoncheol Oh
    • Annals of Occupational and Environmental Medicine
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    • 제35권
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    • pp.11.1-11.17
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    • 2023
  • Background: Studies on the relationship between organic solvent exposure and chronic kidney disease (CKD) have presented inconsistent results. Definition of CKD has changed in 2012, and other cohort studies have been newly published. Therefore, this study aimed to newly confirm the relationship between organic solvent exposure and CKD through an updated meta-analysis including additional studies. Methods: This systematic review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines. The search was conducted on January 2, 2023 using Embase and MEDLINE databases. Case-control and cohort studies on the relationship between organic solvent exposure and CKD were included. Two authors independently reviewed full-text. Results: Of 5,109 studies identified, a total of 19 studies (control studies: 14 and cohort studies: 5) were finally included in our meta-analysis. The pooled risk of CKD in the organic solvent exposed group was 2.44 (1.72-3.47). The risk of a low-level exposure group was 1.07 (0.77-1.49). The total risk of a high-level exposure group was 2.44 (1.19-5.00). The risk of glomerulonephritis was 2.69 (1.18-6.11). The risk was 1.46 (1.29-1.64) for worsening of renal function. The pooled risk was 2.41 (1.57-3.70) in case-control studies and 2.51 (1.34-4.70) in cohort studies. The risk of subgroup classified as 'good' by the Newcastle Ottawa scale score was 1.93 (1.43-2.61). Conclusions: This study confirmed that the risk of CKD was significantly increased in workers exposed to mixed organic solvents. Further research is needed to determine the exact mechanisms and thresholds. Surveillance for kidney damage in the group exposed to high levels of organic solvents should be conducted.

한국의 환경경제학 연구 (Environmental Economic Studies in Korea)

  • 김일중;박근수
    • 자원ㆍ환경경제연구
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    • 제10권3호
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    • pp.289-322
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    • 2001
  • This paper introduces the environmental economic studies in Korea, focused especially on the environmental regulation policy and valuation of environmental resources in Korea. It can be seen from this survey that the Korean environmental economists have had most of their interests in socially hot issues such as the evaluation and alternatives of the existing environmental policy instruments, and the impacts of both the environmental regulation and greenhouse gas reduction policies, as well as economic valuation of environmental assets including air, water, and ecosystem. We need more intensive research on issues of the evaluation of individual public investment, enforcement, transaction costs and income distribution and inter-generational equity. More attention should also be paid to the valuation methods and environmental data.

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환경기초시설을 활용한 환경교육 현장체험학습 프로그램 개발 -埋立場을 中心으로- (The Development of the Field-Experience Learning Program of Environmental Education Utilizing Environmental Facilities - Focus on the sanitary landfill -)

  • 곽홍탁;이두곤
    • 한국환경교육학회지:환경교육
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    • 제13권2호
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    • pp.91-102
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    • 2000
  • National curriculum for environmental education recommends various teaching-learning methods including survey and discussion of environmental problems, investigation of case studies, experiments, role play, and field-experience learning in addition to the traditional lecture-oriented teaching methods. The field experience learning in environmental education is considered to be a good method to develop environmentally sound attitude and to cultivate environmental sensitivity, but here has been very limited research concerning models for field-experience learning. The aim of this study is to develop a model of the field-experience learning program of environmental education utilizing environmental facilities. In this study a kind of such a basic model was developed and presented. The developed basic model of the field-experience learning was applied to the case utilizing landfill facilities. A specific application of the landfill program to the Bangcheon-ri landfill, in Daegu, was also presented with related teaching materials developed in this studies. And various aspects in the program was discussed.

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중학교 과학과 교사들의 환경교육 의식에 관한 연구

  • 김병우;한성영
    • 한국환경교육학회지:환경교육
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    • 제5권1호
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    • pp.47-56
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    • 1993
  • The ultimate goal of environmental education can be said to change students' consciousness and attitude of environment. From this point of view, this study has examined the definition of environment, the necessity of environmental education, the basic principles of environmental education, and significance of teachers in environmental education by surveying previous studies as theoretical background. Then, we have investigated teachers' consciousness and opinion about the real state and problems of present environmental education in schools. The result of this study is as follows. First, though most teachers are conscious of the importance of environmental education in school, they actually cannot practice it because of various preventing factors. Second, for the improvement of teacher's quality, we need studies and trainings on environmental education, Third, as we lack materials and programs necessary for the lectures on environmental education, it is impending to develop and provide it. Fourth, the content and goal of environmental education should be reconstituted and systematized so that they may conform to the viewpoint of students.

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환경분쟁과 중재제도 (Environmental Disputes and Arbitration Systems)

  • 강재규
    • 한국중재학회지:중재연구
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    • 제15권2호
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    • pp.163-196
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    • 2005
  • In modern society, there is given rise to a lots of environmental controversies. This disputes bring about the social problems. The reason that this kinds of dispute is frequently brought in our society is that our society is democratized and a nation asserts his rights strongly. And also the reason is that there is not enough the legal system which is able to settle such a dispute amicably. Thus this thesis deals with the arbitration systems as the way to solve the dispute of environmental problems. This paper is composed as follows. 1. Introduction 2. The cause of trouble still exists in our society related to environmental controversy 3. A general settlement procedure of environmental disputes 4. Administrative grievance mediation 5. Environmental disputes and arbitration systems 6. Conclusion

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우리 나라 학생들의 환경 관련 지식 수준 - 과학과 국제 비교 연구 결과를 중심으로 (Korean Students' Environmental Knowledge : From the Perspectives of International Comparative Studies in Science)

  • 신동희
    • 한국환경교육학회지:환경교육
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    • 제14권2호
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    • pp.133-141
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    • 2001
  • The purpose of this study was to verify the trends of Korean students'environmental science achievement in recent two international comparative studies, TIMSS-R and PISA 2000. Participants of TIMSS-R and PISA 2000 were 8th graders and 15-years-olds, respectively. The science items in TIMSS-R assess students'science concepts in the science curriculum and science items in PISA 2000 assess scientific literacy in the 21s1 daily life. To achieve this purpose, the 14 environmental knowledge items in TIMSS-R and 16 environmental knowledge items in PISA 2000 were analyzed. As a result of the comparison between Korean- and international percent correct, Korean students showed especially higher achievement in 'resources'or'ecosystem'items. On the contrary, Korean students showed relatively lower achievement in'biotechnology'or'environmental health'items. In general, Korean female students showed lower achievement than their male counterparts. The relationship among environmental knowledge, attitudes, and behavior should be examined more systematically.

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Potential health effects of emerging environmental contaminants perfluoroalkyl compounds

  • Lee, Youn Ju
    • Journal of Yeungnam Medical Science
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    • 제35권2호
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    • pp.156-164
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    • 2018
  • Environmental contaminants are one of the important causal factors for development of various human diseases. In particular, the perinatal period is highly vulnerable to environmental toxicants and resultant dysregulation of fetal development can cause detrimental health outcomes potentially affecting life-long health. Perfluoroalkyl compounds (PFCs), emerging environmental pollutants, are man-made organic molecules, which are widely used in diverse industries and consumer products. PFCs are non-degradable and bioaccumulate in the environment. Importantly, PFCs can be found in cord blood and breast milk as well as in the general population. Due to their physicochemical properties and potential toxicity, many studies have evaluated the health effects of PFCs. This review summarizes the epidemiological and experimental studies addressing the association of PFCs with neurotoxicity and immunotoxicity. While the relationships between PFC levels and changes in neural and immune health are not yet conclusive, accumulative studies provide evidence for positive associations between PFC levels and the incidence of attention deficit hyperactivity disorder and reduced immune response to vaccination both in children and adults. In conclusion, PFCs have the potential to affect human health linked with neurological disorders and immunosuppressive responses. However, our understanding of the molecular mechanism of the effects of PFCs on human health is still in its infancy. Therefore, along with efforts to develop methods to reduce exposure to PFCs, studies on the mode of action of these chemicals are required in the near future.