Inaug.-Diss.--Königsberg. / Vita.

Thesis (Ph.D.) - University of Queensland, 2006. / Includes bibliography.

M.Sc. / DNA microsatellite primers were used to determine the population structure (genetic variation, heterozygosity, inbreeding, genetic distance and phylogenetic relationships) of Camelus dromedarius in southern Africa. A camel population from Sudan as well as an Alpaca population was included for comparison. The results obtained from the geographical distribution indicate that a number of small populations occur and that it can not be regarded as breeding units. These populations are isolated and widely distributed over South Africa, Namibia and Botswana. Information obtained from questionnaires indicates that nine true camel breeders exist in the southern African region. The genetic variation at seven loci of the southern African camel population (heterozygosity value = 0.604) is less than that of Sudan (0.680), an indication that inbreeding has occurred due to isolation. This was confirmed with the reduced number (five) of rare alleles occurring in the southern African population opposed to 30 rare alleles in the Sudan population. Both the southern African and Sudan camel populations have less genetic variation than the Alpaca population (heterozygosity = 0.757). Less genetic variation is present within the camel populations of southern Africa when results from more loci (12) are included (heterozygosity values range from 0.345 to 0.483). These values are comparable to those of endangered species such as wild dog (0.560) and cheetah (0.390). Low to moderate genetic differentiation was obtained between the three southern African populations (FST values range from 0.039 to 0.058). This was expected since the animals are derived from the same source. The results from this study will provide a scientific base for the execution of future studies. It is recommended that individuals with the identified rare alleles should be used in a breeding policy to prevent further inbreeding and to improve the current gene pool by increasing the genetic variation by either relocating or lending the individuals from and to the breeders or by making use of artificial insemination. / Prof. F.H. van der Bank

No description available.

Thesis (Ph. D.)--University of Adelaide, 1967.

No description available.

Thesis (Masters)--Linköping Institute of Technology, 1989. / "January 1990." Includes bibliographical references (leaves 53-55).

No description available.

Made available in DSpace on 2016-04-25T16:44:38Z (GMT). No. of bitstreams: 1 Ananda Carvalho Pimenta.pdf: 1215484 bytes, checksum: 3bc19708a070b8387e436d534c63d9bd (MD5) Previous issue date: 2014-03-26 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / This dissertation aims to assess the possible contribution of methodologies indicators - CAMELS rating and Data Envelopment Analysis (DEA) to performance and efficiency analyzis applied to Brazilian banks considering the loan portfolio indicators in the 2009- 2012 period. This study is based on an extensive literature review on the four cornerstone themes - financial institutions efficiency and performance, credit risk management, rating CAMELS and Data Envelopment Analysis (DEA) that support the methodology definition and the result analysis. The descriptive and dispersion analyzes enabled the data validation and provided the initial understanding of banks' credit portfolio for the banks selected sample. Thereafter i) the CAMELS management and asset quality indicators were calculated to respectively, indicate management s behavior regarding risk and banking management, and overdue loans share in the portfolio, and also ii) the DEA efficiency indicators were obtained to as a measurement of instituitions relative efficiency. Having been held in 2013 secnd semester, the study sampled a total of eight financial institutions and their data for the 2009- 2012 period. Aiming to validate the applicability of both methodologies to the Brazilian financial market, the sample was divided based on their market profile identified from its main equity volums and accounts. Then it was concluded that both indicators have applicability in assessing the efficiency in the Brazilian s financial institutions, including the indication to associate then, in order to have a more detailed analysis due their own specificities. The dissertation also presents insights for future studies on this relevant topic / Esta dissertação busca avaliar a possível contribuição das metodologias de indicadores rating CAMELS e Análise Envoltória de Dados (DEA) à análise de desempenho e eficiência aplicada às instituições financeiras brasileiras a partir dos indicadores da carteira de crédito, no período de 2009 a 2012. Este estudo está fundamentado em uma extensa revisão bibliográfica sobre os quatro temas-suporte da dissertação - desempenho e eficiência de instituições financeiras, gestão do risco de crédito, rating CAMELS e Análise Envoltória de Dados (DEA), com o objetivo de apoiar na aplicação da metodologia e análise dos resultados. As análises descritiva e de dispersão das variáveis estudadas, propiciaram a validação dos dados e forneceram o entendimento inicial acerca da carteira de crédito dos bancos da amostra selecionada. Foram então apurados i) os indicadores de qualidade gerencial e dos ativos do rating CAMELS que evidenciaram respectivamente, o comportamento dos gestores em relação à gestão de riscos e da organização; e a participação dos créditos vencidos na carteira, e ii) apurados os índices de eficiência do DEA que avaliaram as unidades de modo a comparar seus desempenhos fornecendo uma medida de eficiência relativa. Tendo sido realizado no segundo semestre de 2013, o estudo teve como amostra um total de oito instituições financeiras e seus respectivos dados para o período de 2009 a 2012. Visando validar a aplicabilidade das metodologias ao mercado financeiro brasileiro, a amostra de bancos foi segmentada com base em seu perfil de atuação, identificado a partir de suas principais contas patrimoniais. A partir desta segmentação concluiu-se que os indicadores apresentam aplicabilidade na avaliação da eficiência na gestão das instituições financeiras, inclusive com a sinalização de associação destes, em função das especificidades de análise propiciadas por cada um individualmente. A dissertação ainda aponta perspectivas para estudos futuros neste tema de evidência crescente

Since the first detected cases of Middle East Respiratory Syndrome Coronavirus (MERS-CoV), a respiratory virus capable of causing severe human illness, surveillance and research have focused on identification of the source of primary human MERS-CoV infections. Within the One Health framework which recognizes the interconnectedness of human, animal, and environmental health, various animal hosts were investigated as sources of human infection because most emerging infectious diseases are zoonoses – pathogens spilling over from an animal host to a human. A systematic literature review was conducted to synthesize knowledge about MERS-CoV infections in livestock animals and zoonotic transmission of MERS-CoV to humans. Dromedary camels are the presumptive source of primary human MERS-CoV infections, but the importance, frequency, and specific mechanisms of camel-to-human MERS-CoV transmission have not been well characterized. Further, it is unknown what potential barriers will be faced when implementing basic biosecurity interventions to prevent zoonotic transmission at occupational sites where individuals regularly work or interact with dromedary camels. This dissertation addressed these knowledge gaps through a study of MERS-CoV serology and knowledge, attitudes, and beliefs about camel-to-human disease risks and basic biosecurity interventions in Jordan. This study detected individuals with low MERS-CoV neutralizing antibody titers in Jordan and found an association between regular work or interaction with dromedary camels or their living environments and evidence of MERS-CoV infection. Specific behavioral practices were not associated with evidence of MERS-CoV infection among those who regularly work or interact with dromedary camels or their living environments in Jordan. The study also identified multiple important barriers that may be faced when implementing basic biosecurity interventions in this population, including personal protective equipment (PPE) use and frequent handwashing. There were widespread ingrained beliefs that dromedary camels cannot transmit disease to humans and that camel milk and camel urine are beneficial to human health. Among camel workers, reported PPE use was low and frequent handwashing was uncommon. Only a few camel workers felt they would use PPE even if made freely available at their place of work. In conclusion, this dissertation provides further evidence that dromedary camel exposure is an important pathway in the epidemiology of primary human MERS-CoV infections in Jordan. The findings also support the notion that an intervention that simply provides basic biosecurity materials such as PPE and handwashing stations is likely to be ineffective in this population, and that identified barriers should be addressed to motivate behavioral change. Future studies are proposed including a longitudinal cohort study of individuals at risk for MERS-CoV that can detect individual seroconversion over time, track antibody responses among those who seroconvert, and evaluate key sub-exposures among those who are occupationally exposed to dromedary camels; as well as a pilot study to evaluate the feasibility, acceptability, and sustainability of a multifaceted biosecurity intervention that provides materials as well as training and education targeting the knowledge, attitude, and belief barriers identified.