• 제목/요약/키워드: Preservation Strategies

검색결과 141건 처리시간 0.187초

Genetic structure and population differentiation of endangered Scrophularia takesimensis (Scrophulariaceae) in Ulleung Island, Korea

  • Ma, Sunmi;Lim, Yongseok;Na, Sungtae;Lee, Jun;Shin, Hyunchur
    • 식물분류학회지
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    • 제41권3호
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    • pp.182-193
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    • 2011
  • As a part of the on-going effort to conserve endangered Scrophularia takesimensis Nakai in Korea, its genetic structure and diversity from 3 population, consisted of 14 subpopulations in Ulleung Island were analyzed using RAPD band patterns. Out of 60 primers tested, 33 generated amplified bands with its genome, including 149 polymorphic and 67 monomorphic bands. The highest number (146) was found in northern population, especially, 64 in HY subpopulation; the smallest (40) in eastern population. An examination of its genetic structure with AMOVA revealed that about 60% of all variations could be assigned to among subpopulations within populations. Population differentiation among populations and subpopulations is seriously going now because of habitat fragmentation due to human activities, such as road and small port construction. Although the habitats of S. takesimensis in Ulleung Island, Korea are disappeared at an alarming rate, significant levels of genetic variation still exist at species level, and population level, especially northern population. Therefore, three conservation strategies should be needed urgently; 1) preservation of populations as it stands, 2) establishment of recovery plan to connect population and subpopulations genetically, and 3) long-term monitoring.

Feeding Strategies to Produce High Quality Pork - Review -

  • Bosj, P.
    • Asian-Australasian Journal of Animal Sciences
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    • 제12권2호
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    • pp.271-281
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    • 1999
  • The cost of production of high quality pork is compensated by high returns, but constraints by the market are increasing. A few opportunities to maintain and improve pork quality by dietary means are presented. The healthy value of pork is a prerequisite. A careful control of suppliers and preservation of feeds are essential to protect pork against presence of contaminants from the feed. The feeding level and some dietary components modify the partition of the dietary energy into different pig tissues and chemical components of pork, affecting the hygienic and nutritional value, tenderness and taste. It is difficult to transfer a nutrient from the diet to pork, if the requirements. for growth are satisfied. Fatty acids and Vitamin E are the most studied exceptions. There is some evidence that iron and selenium contents can be affected too. Varying the content of a nutrient frequently changes sensorial and technological properties of pork. The addition of oils improves the acidic profile of depot fats, but the effect on phospholipid composition is not well studied and negative effects on oxidability and consistency of meat products are observed. Vitamin E can improve many healthy and sensorial characteristics, but its effect is clearer when the meat is stressed or manipulated.

GIS 공간분석을 통한 남부 플로리다 Big Cyprus 분수계 보존서식지 보호 (Using GIS Spatial Analysis to Protect Critical Habitats in the Big Cyprus Watershed, South Florida)

  • 김진호;김창호;김현우
    • 한국BIM학회 논문집
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    • 제7권4호
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    • pp.31-38
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    • 2017
  • Big Cyprus watershed, which is located in the Southwestern Florida and covers Everglades National Park that has high proportions of endangered species' habitats, plays an important role for the entire Florida ecosystem. Due to the rapid urbanization and high population growth, however, the watershed has been continuously polluted and the current regional watershed plan is not created to accommodate the speed of growth. The purpose of this study is to suggest proper protection policies and strategies for the Big Cyprus watershed by employing the Inverse Distance Weighted interpolation tool in Geographic Information System. The findings show that conservation priorities should be given in the North and South portion of the watershed area, which are proven to be the most important aisle for the habitats in the Big Cyprus. The study concludes with policy suggestions that local environmental planners should concentrate for adopting their new watershed plan in the near future.

동물복지 관점에서의 한국 사육곰 구호정책 개선방안 (Improvement Disciplines for Relief Policy of Breeding Bears at the Perspective of Animal Welfare in the Republic of Korea)

  • 이정환;이관규;이민주;차진열
    • 한국환경복원기술학회지
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    • 제16권6호
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    • pp.31-48
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    • 2013
  • South Korea had encouraged farmers to breed bear to increase farmer's income since 1981. Currently farmers breed over thousand number of bears, however but the policy measures for breeding bears is expected to conflict the main stream of bear conservation due to South Korea belong to the member of CITES, which categorizes and manages bears under Wild Fauna and Flora Protection Act. Government needs to establish a special law containg the win-win relief strategy not only for farmers of breeding bears, but international corresponding policy. So, we have reviewed the domestic status and international trends on breeding bears, and suggest the alternative strategies of the policy such as a bear park, a bear village, use of species recovery center, use of a preservation organization. This policy should be accompanied with more detailed fact analysis, management agency, well equipped welfare facility and financial preparation for proper management of breeding bears against changing international trends on wildlife conservation.

월악산국립공원의 이용 및 관리속성에 대한 탐방객 태도 (Visitors' Attitudes to National Park Use and Managerial Attributes in Woraksan National Park)

  • 유기준;김동필
    • 한국환경생태학회지
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    • 제19권2호
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    • pp.144-149
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    • 2005
  • 본 연구는 월악산국립공원 탐방객들의 국립공원 이용 및 관리 관련 속성에 대한 탐방객 태도를 파악함으로써 효율적인 공원관리 방안 수립에 필요한 탐방객 관련 정보의 제공을 목적으로 수행되었다. 이를 위해 응답자 직접 기입 방식의 설문조사가 월악산국립공원의 주 이용거점에서 공원방문을 마치고 귀가하는 221명의 탐방객들을 대상으로 실시되었다. 연구결과, 국립공원 관리 방향에 대 해 탐방객들은 보전지향적인 태도를 나타냈다. 국립공원의 다양한 환경 요소로부터 추출한 이용 및 관리 관련 18개 속성들의 심각성에 대한 태도를 측정 한 결과 '보통'에서 '심각하지 않은 수준'의 범위로 비교적 긍정적으로 인식하고 있는 것으로 나타났다. 월악산국립공원에서의 종합적인 휴양만족 수준도 대체적으로 만족하는 수준으로 평가되었다.

기록관리 시스템 기능요건 표준의 정부산하공공기관 적용에 관한 사례 연구 (A Case Study on the Application of Requirements Standard of Systems for Government-Affiliated Organizations)

  • 김형주;김수현
    • 한국비블리아학회지
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    • 제28권2호
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    • pp.35-56
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    • 2017
  • 정부산하공공기관은 경영 자주성, 업무 전문성을 고려하여 기록물을 자체적으로 보존 관리할 것을 원칙으로 하고 있다. 정부산하공공기관을 위한 범용 기록관리시스템이 없는 상황에서 "정부산하공공기관 등 기록관리시스템 기능요건(NAK/S 24:2014(v1.0))" 표준의 제정은 각 기관이 자체적으로 기록관리시스템을 구축할때 공통적으로 고려해야 될 기능요건과 시스템 방향성을 일치시킨다는 점에서 의의가 있다. 본 연구에서는 표준에서 제안하는 기능요건을 분석하고, 기록관리시스템 구축 사례를 중심으로 표준의 기능요건을 적용하기 위한 절차와 방안을 제시하였다.

성공적인 리포지터리의 운영정책에 관한 연구 (A Study on the Operational Policies and Best Practice of Repository)

  • 정영미;이상기
    • 정보관리학회지
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    • 제27권4호
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    • pp.131-152
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    • 2010
  • 본 연구는 세계의 실 운용중인 리포지터리 중 성공 사례들을 조사하고 그것의 실태와 운영정책을 분석하여 향후의 성공적인 리포지터리 구축과 운영시 유용한 전략적 토대를 마련하고자 하였다. 본 연구의 목적을 달성하기 위해 리포지터리의 성공 사례는 CSIC에서 제공하는 Ranking Web of World Repositories의 Top 10과 JISC에서 지원하는 Registry of Open Access Repositories을 통해 선정되었다. 성공적인 리포지터리의 운영정책 및 관련 자료는 주로 해당 사이트를 통해 수집하였고 큰 범주에서 주제 리포지터리와 기관 리포지터리로 나누었다. 운영정책은 운영 및 지원정책, 수집정책, 관리정책, 배포 및 이용활성화정책, 장기보존 정책, 기술정책, 그리고 저작권 정책으로 구분하여 분석하였다. 또한 성공적인 주제 리포지터리와 기관 리포지터리의 운영정책의 차이 및 국내와 국외 리포지터리간의 차이점도 살펴보았다.

Adventitious root culture for secondary metabolite production in medicinal plants: A Review

  • Rahmat, Endang;Kang, Youngmin
    • Journal of Plant Biotechnology
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    • 제46권3호
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    • pp.143-157
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    • 2019
  • Medicinal plants are high-value natural resources that have been used as precautionary drugs by many people globally. The increasing global demand for bioactive compounds from medicinal plants has led to the overexploitation of many valuable species. One widely used approach to overcome this problem is the use of adventitious root cultures as a propagation strategy. This review examines the scientific research published globally on the application of adventitious root cultures for many medicinal plants. Adventitious roots generated under aseptic environments in suitable phytohormone-augmented medium exhibit high growth rates and production of important secondary metabolites. Parameters such as medium properties and composition, growth hormone type, and elicitation strategies for in vitro grown adventitious roots of medicinal plants, are the main topics discussed in this review. We also examine current developments in bioreactor system cultivation for plant bioactive compounds using adventitious root cultures, a technology with possible commercial applications, via several studies on adventitious root culture of medicinal plants in which bioreactor systems play a role. In conclusion, the development of adventitious root cultures for medicinal plants is highly useful because of their capability for vegetative propagation and germplasm preservation.

셔먼 알렉시의 『레저베이션 블루스』에 나타난 탈식민화와 생존전략 (Decolonization and Survival Strategies in Sherman Alexie's Reservation Blues)

  • 강자모
    • 영어영문학
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    • 제59권4호
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    • pp.569-592
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    • 2013
  • In Reservation Blues, Sherman Alexie examines how Indians can survive successfully in contemporary America, overcoming the tragic history of colonialists' violence and the resultant traumata. For Alexie, both reassembling the parts of the colonialist history through remembrance and testifying its unjustness play important roles not only in the decolonization process which probes the remnants and the negative effects of the colonialism deeply rooted in the lives of Indians but in the procedure of healing the political, cultural, and religious traumata. However, it should be noted that the ultimate aim of Alexie's decolonization does not lie in erasing every trace of the colonialism but in transforming its legacy into a story of survivance. The recovery of the tribal voices and the preservation of Indian traditions, blood, and cultures are essential in the survivance of Indians. Yet, Alexie's tribalism should not be viewed as an exclusive one. He knows well that it is neither possible nor desirable to maintain an exclusive tribalism based on blind adherence to a mythic or "pure" past. Exclusive tribalism is a cause for alarm in the contemporary world, a dynamic place where diverse cultures consistently change through collision, exchange, and negotiation. In Reservation Blues, Alexie stresses a spiritual and cultural flexibility that makes the cultural interpenetration possible as a key element of the meaningful survivance of contemporary American Indians.

Genetic diversity and relationship analyses of the Korea native black goat line using microsatellite markers

  • Ho-Chan, Kang;Kwan-Woo, Kim;Eun-Ho, Kim;Cheol-Hyun, Myung;Jung-Gyu, Lee;Hyun-Tae, Lim
    • 농업과학연구
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    • 제48권4호
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    • pp.693-702
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    • 2021
  • The aim of this study was to analyze the genetic diversity and distance of the Korean native black goat line. Thus far, this Korean native black goat line has not been studied intensively, especially in genetic diversity and relationship studies in comparison with other breeds. In total, eleven microsatellite (MS) markers were used to evaluate alleles from 391 Korean native black goats and foreign hybrid animals. The genetic diversity index was evaluated based on the allele distributions. Four Korean native black goat lines showed expected ranges of observed heterozygosity, expected heterozygosity, and polymorphism information content (PIC) values for use in genetic diversity research (0.509 - 0.643, 0.434 - 0.623 and 0.356 - 0.567). Lines from the Korean native black goat and foreign hybrid were clearly separated according to principal coordinates analysis (PCoA), phylogenetic tree and tended to be clustered in each Korean native black goat line. Thus, this study can be used for analyzing the genetic relationships between Korean native black goats and foreign breeds for line preservation and for fundamental information to determine breed improvement strategies.