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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Individual identification, disease monitoring and home range of Leiopelma hamiltoni

Webster, Janelle T. January 2004 (has links)
Amphibian populations are declining on a global scale and although disease outbreaks are a commonly accepted hypothesis they are not the only one. My aims for my thesis were to study the home range of Leiopelma hamiltoni, to determine whether a photographic database could be used to individual identified them and monitor the health status of the population. Habitat loss is a possible cause. For this reason monitoring an animals' home range is a possible method to detect early impacts the population is facing. By tracking 12 L. hamiltoni within a 12 m x 6 m grid on Maud Island, it was shown that the home range size can vary from 0.5 m2 to 25 m2 based on the minimum convex polygon method. However, to track multiple individuals it is important to be able to distinguish among frogs. The commonly used methods of identification, such as toe clipping, pose potentially detrimental effects. Therefore, non-invasive methods based on natural markings need to be established. Through the use of the dark pigmented patterns found on the skin of L. hamiltoni individuals can be identified on recapture with a mean accuracy of 93%. By developing a database to maintain the photographs used for individual identification, the database can also be used to monitor the status of the population. During 2003 numerous L. hamiltoni were observed with denuded patches predominantly on the facial region. By monitoring five individuals within the captive facility at the University of Canterbury it was discovered that frogs appear to be able to cure themselves. Through researching the home range requirements and developing a photographic database to monitor the population status of L. hamiltoni, it will aid in the management of ensuring the long-term survival of this archaic species of frog.
2

Studies on the population and acoustic signals of Bryde¡¦s whales (Balaenoptera edeni) in Tosa Bay, Japan

Chiu, Pai-Ho 06 August 2009 (has links)
Bryde¡¦s whale (Balaenoptera edeni) is a species of baleen whales widely distributed throughout the tropical and temperate waters and does not migrate for long distance. Phylogenetically, the population in Tosa Bay, which includes about 43 individuals identified, belongs to the East China Sea Stock and it behaves between migratory and non-migratory forms. Studies on acoustic signals and individual identification could help us understand Bryde¡¦s whales in Tosa Bay more. Between August and December 2008, two sound types were recorded and analyzed. The sound type Be8a was considered as feeding call, while the nonpulsed moan was considered associated with mother-calf communication during separation. In this study period, other 31 individuals were identified and added into the catalogue. Bryde¡¦s whales are distributed very limited. Concentration of individuals was found in central Tosa Bay between spring and early autumn and it shifted southwestern in late autumn and winter. This study suggests that the East China Sea Stock may separate into two or more communities and the population in Tosa Bay belongs to the northern community.
3

Individual identification, disease monitoring and home range of Leiopelma hamiltoni

Webster, Janelle T. January 2004 (has links)
Amphibian populations are declining on a global scale and although disease outbreaks are a commonly accepted hypothesis they are not the only one. My aims for my thesis were to study the home range of Leiopelma hamiltoni, to determine whether a photographic database could be used to individual identified them and monitor the health status of the population. Habitat loss is a possible cause. For this reason monitoring an animals' home range is a possible method to detect early impacts the population is facing. By tracking 12 L. hamiltoni within a 12 m x 6 m grid on Maud Island, it was shown that the home range size can vary from 0.5 m2 to 25 m2 based on the minimum convex polygon method. However, to track multiple individuals it is important to be able to distinguish among frogs. The commonly used methods of identification, such as toe clipping, pose potentially detrimental effects. Therefore, non-invasive methods based on natural markings need to be established. Through the use of the dark pigmented patterns found on the skin of L. hamiltoni individuals can be identified on recapture with a mean accuracy of 93%. By developing a database to maintain the photographs used for individual identification, the database can also be used to monitor the status of the population. During 2003 numerous L. hamiltoni were observed with denuded patches predominantly on the facial region. By monitoring five individuals within the captive facility at the University of Canterbury it was discovered that frogs appear to be able to cure themselves. Through researching the home range requirements and developing a photographic database to monitor the population status of L. hamiltoni, it will aid in the management of ensuring the long-term survival of this archaic species of frog.
4

Individual identification of inbred medaka based on characteristic melanophore spot patterns on the head / 頭部の特徴的なメラノフォア斑点パターンに基づく近交系メダカの個体識別

Morizumi, Hajime 23 May 2023 (has links)
京都大学 / 新制・課程博士 / 博士(人間健康科学) / 甲第24809号 / 人健博第115号 / 新制||人健||8(附属図書館) / 京都大学大学院医学研究科人間健康科学系専攻 / (主査)教授 中尾 恵, 教授 岡 昌吾, 教授 浅野 雅秀 / 学位規則第4条第1項該当 / Doctor of Human Health Sciences / Kyoto University / DFAM
5

Identifikace autora ve forenzní lingvistice / Author identification in forensic linguistics

Nováková, Veronika January 2014 (has links)
This diploma thesis is focused on forensic linguistics, which is not well known field in the Czech academic environment, because only a forensic examiner is competent to carry out analyses of this kind. The aim of the thesis is to introduce theoretical base of forensic linguistics, especially the method of author's identification. If forensic linguist identifies an author, he/she must have two groups of texts - questioned material (texts of unknown origin) and comparative material (texts of a certain person). Forensic linguist examines the materials and he/she has to answer the question if the author of the questioned and comparative material is one person or not. The analysis is focused on author's individual language and style characteristics in the texts. This method is demonstrated in the thesis on a fictitious case. Conclusions of the analyses are worded in the form of the expert opinion, which contains the most considerable differences within texts. Key words: forensic profiling, individual identification, language level, disputed text authorship, analysis
6

Conservation Genetics of the Eurasian Otter in Sweden

Arrendal, Johanna January 2007 (has links)
In this thesis, molecular genetic methods were used to study a threatened species, the Eurasian otter. Estimates of population size and population dynamics parameters were obtained, the genetic effects of a restocking program was evaluated, and a population viability analysis was conducted to assess which demographic parameters are most important for the future viability of an otter population. Many of the studies were based on noninvasive genetic sampling of faeces. In the genetic evaluation of the restocking program, it was found that the released otters had contributed to subsequent generations. However, the effects were to a large degree limited to the near surroundings of the release areas. Comparison of two census methods, snow-tracking and noninvasive genetic census based on faeces, showed that approximately only half of the otters detected with the genetic census were found with the snow-tracking census. It is recommended to combine these two methods to obtain the most reliable estimates of population size. A short-term study on population dynamics in otters showed that apparent survival was higher in females than in males and that the rate of addition was also high and likely influenced by migration. The population viability analysis incorporated both genetics and demography and revealed that survival to first reproduction was the most crucial demographic parameter affecting the viability of the study population. This result suggests that conservation efforts should be focused on protocols that enhance the survival prospects of young females. Environmental stochasticity was also found to have large effects on the probability of extinction of this population.
7

Desafios da gestão de uma base de dados de identificação unívoca de indivíduos: a experiência do Projeto Cartão Nacional de Saúde no SUS / Challenges of managing a database of unique identification of individuals: the experience of the National Health Card Project in SUS

Magalhães, Marcelo de Araujo January 2010 (has links)
Made available in DSpace on 2011-05-04T12:36:18Z (GMT). No. of bitstreams: 0 Previous issue date: 2010 / A Base de Dados de Identificação Unívoca de Indivíduos voltada para o SUS constitui uma base de informações relacionada ao processo de identificação unívoca dos indivíduos formando, juntamente com as bases de informações de Profissionais de Saúde e Estabelecimentos de Saúde o que podemos chamar de bases de dados estruturantes para os Sistemas de Atenção à Saúde. Estas bases de dados estruturantes contribuíram para aconstrução de um alicerce de informações para o SUS, tornando-se referência para os Sistemas de Atenção à Saúde no Brasil. Sua construção se deu para que fosse possível o desenvolvimento e implantação de uma solução informatizada contratada pelo Ministério da Saúde. O presente trabalho inicia-se com o estudo da história de desenvolvimento desta solução informatizada, denominada de Projeto do Cartão Nacional de Saúde, e seu contexto histórico de construção iniciado em 1999. Por meio de revisões bibliográficas, análise de documentos institucionais produzidos pelo Ministério da Saúde, e as principais escolas formadoras e produtoras de estudos sobre o tema, além da experiência profissional do autor, são discutidas as soluções encontradas para o projeto procurando dar ênfase aos aspectos de desenvolvimento e tecnologias empregadas, dentro do contexto político institucional e organizacional do seu processo histórico de criação. Realiza-se ainda exposição do panorama da situação atual (2008) do projeto e suas bases estruturantes, com destaque para a gestão da Base de Identificação Unívoca de Indivíduos do SUS. Por fim,procura-se contribuir com discussões e conclusões que permitam sua consolidação como uma base de dados de identificação unívoca de indivíduos para o SUS e, desta forma, ser capaz de atender às demandas dos Sistemas de Atenção à Saúde. / The Brazilian HealthCare System (SUS in portuguese) Database of Unique identification of Individuals is a database of information related to the process of unique identification of individuals, together with the Healthcare Individual Provider and Healthcare Provider Information Databases, form what we call the structuring databases for the health care information systems. These databases contributed to building a foundation of information for the SUS, becoming a reference for the Health Care Systems in Brazil. Its construction was done to make possible the development and implementation of a computerized solution contracted by the Ministry of Health. This work begins with the study of the history of development of this computerized solution, called Projeto do Cartão Nacional de Saúde (National Healthcare Card), which began in 1999, and its historical context. Through literature review, analysis of institutional documents produced by the Health Ministry and by the main schools on the subject, beyond the professional experience of the author, this study presents the solutions to the project, seeking to emphasize the development process and the technologies employed, taking into account the institutional and political context of its evolution. It also shows the current situation (2008) of the project and is structuring databases, with emphasis on the management of Database of Unique Identification of Individuals. Finally, we seek to contribute with discussions and conclusions that allow the consolidation of a database of unique identification of individuals for SUS and thus be able to meet the demands of the Brazilian health care information systems.

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