Primates
Mostrando 13-24 de 1196 artigos, teses e dissertações.
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13. Neuroscience: unveiling the brain of Saimiri collinsi (Squirrel Monkey)
Abstract Behavioral intelligence among non-human primates is a somewhat puzzling area to study, since it is closely linked to the morphology of the central nervous system. However, this morphology is still unknown to science in the case of Saimiri collinsi. As a means of assisting future studies on the social behavior of this species, we analyzed the brains
An. Acad. Bras. Ciênc.. Publicado em: 01/11/2018
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14. Yellow fever outbreak in Brazil: the puzzle of rapid viral spread and challenges for immunisation
We discuss the complex eco-social factors involved in the puzzle of the unexpected rapid viral spread in the ongoing Brazilian yellow fever (YF) outbreak, which has increased the reurbanisation risk of a disease without urban cases in Brazil since 1942. Indeed, this rapid spatial viral dissemination to the Southeast and South regions, now circulating in the
Mem. Inst. Oswaldo Cruz. Publicado em: 03/09/2018
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15. Cytogenetics and Molecular Genetic Analysis of Chimerism in Marmosets (Callithrix: Primates)
ABSTRACT The birth of fraternal twins is a characteristic frequently observed in callitrichids. Cytogenetic studies have demonstrated hematopoietic chimerism in marmosets with the occurrence of two cell lines 2n=46,XX/46,XY in females and males co-twins, without phenotypic changes. Amplification by PCR have also been used to verify the presence of the SRY ge
An. Acad. Bras. Ciênc.. Publicado em: 2017-12
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16. Isolamento e genotipagem de Clostridium perfringens and Clostridium difficile em macacos-prego (Sapajus spp.)
RESUMO: A importância de Clostridium perfringens e C. difficile para a maioria das espécies silvestres ainda não está clara. O objetivo do presente estudo foi isolar e genotipar C. perfringens e C. difficile em amostras de fezes de macacos-prego (Sapajus flavius e Sapajus libidinosus) de vida livre e criados em cativeiros no Brasil. Dez S. flavius de vi
Cienc. Rural. Publicado em: 30/11/2017
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17. Morphological and genetic diversity in Callithrix hybrids in an anthropogenic area in southeastern Brazil (Primates: Cebidae: Callitrichinae)
ABSTRACT Two species of Callithrix, C. jacchus (Linnaeus, 1758) and C. penicillata (É. Geoffroy, 1812), are considered invasive in Rio de Janeiro. This study determined the genetic and morphological diversity and verified the species involved in the hybridization of 10 individuals from the municipalities of Silva Jardim (N = 9) and Rio das Ostras (N = 1). W
Zoologia (Curitiba). Publicado em: 23/10/2017
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18. Oviposition behavior of Haemagogus leucocelaenus (Diptera: culicidae), a vector of wild yellow fever in Brazil
ABSTRACT Haemagogus leucocelaenus, which is considered a major vector of wild yellow fever, exhibits acrodendrophilic habits and mainly deposits its eggs in treeholes and bamboo internodes. The selection of nursery sites is essential in the life history and reproductive success of mosquitoes. The present work investigated the preferred oviposition height and
Rev. Inst. Med. trop. S. Paulo. Publicado em: 07/08/2017
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19. Genome analysis of yellow fever virus of the ongoing outbreak in Brazil reveals polymorphisms
The current yellow fever outbreak in Brazil is the most severe one in the country in recent times. It has rapidly spread to areas where YF virus (YFV) activity has not been observed for more than 70 years and vaccine coverage is almost null. Here, we sequenced the whole YFV genome of two naturally infected howler-monkeys (Alouatta clamitans) obtained from th
Mem. Inst. Oswaldo Cruz. Publicado em: 2017-06
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20. Medicinal plants in the diet of woolly spider monkeys (Brachyteles arachnoides, E. Geoffroy, 1806) – a bio-rational for the search of new medicines for human use?
ABSTRACT The present study aimed to compare the plant food diet of woolly spider monkeys (Brachyteles arachnoides) inhabiting Intervales State Park in São Paulo, Brazil, with medicinal plant species used by humans in the surrounding areas of the park. The diet of a group of woolly spider monkeys living in an Atlantic forest area was recorded during 43 month
Rev. bras. farmacogn.. Publicado em: 2017-04
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21. DIVERSIDADE DE MAMÍFEROS DO BAIXO RIO JUFARI, RORAIMA, BRASIL
RESUMO Inventários faunísticos são fundamentais para acessar diretamente a diversidade de uma determinada região. Embora a Amazônia exiba estimativas de grande riqueza de espécies de mamíferos, a região ainda apresenta grandes lacunas de amostragem. Com o objetivo de preencher essas lacunas amostrais foi realizado o inventário da fauna de mamíferos
Pap. Avulsos Zool.. Publicado em: 2017
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22. Molecular data highlight hybridization in squirrel monkeys (Saimiri, Cebidae)
Abstract Hybridization has been reported increasingly frequently in recent years, fueling the debate on its role in the evolutionary history of species. Some studies have shown that hybridization is very common in captive New World primates, and hybrid offspring have phenotypes and physiological responses distinct from those of the "pure" parents, due to gen
Genet. Mol. Biol.. Publicado em: 31/10/2016
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23. Detection of Plasmodium in faeces of the New World primate Alouatta clamitans
Abstract Plasmodium falciparum and Plasmodium vivax have evolved with host switches between non-human primates (NHPs) and humans. Studies on the infection dynamics of Plasmodium species in NHPs will improve our understanding of the evolution of these parasites; however, such studies are hampered by the difficulty of handling animals in the field. The aim of
Mem. Inst. Oswaldo Cruz. Publicado em: 25/08/2016
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24. Detection of antibodies to Oropouche virus in non-human primates in Goiânia City, Goiás
Abstract: INTRODUCTION Arboviruses are associated with human disease, and non-human primates (NHPs) are important primary hosts. This study shows the detection of antibodies to Oropouche virus (OROV) in NHPs either living in urban parks or acclimatized at the Wild Animal Screening Center, Goiânia city. METHODS: Fifty blood samples were analyzed by hemagg
Rev. Soc. Bras. Med. Trop.. Publicado em: 2016-06