Guyana
Mostrando 13-24 de 61 artigos, teses e dissertações.
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13. Visibilidad de los estudios en análisis de redes sociales en América del Sur: su evolución y métricas de 1990-2013
The aim of the study is to analyze the scientific productivity in South American countries related to Social Network Analysis in accordance with the representation of the countries, institutions, researchers and their theoretical references (citations used in these productions). The present study spans from 1990 to 2013 (31/05/2013). Bibliographical descript
Transinformação. Publicado em: 2014-12
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14. Emerging Plasmodium vivax resistance to chloroquine in South America: an overview
The global emergence of Plasmodium vivax strains resistant to chloroquine (CQ) since the late 1980s is complicating the current international efforts for malaria control and elimination. Furthermore, CQ-resistant vivax malaria has already reached an alarming prevalence in Indonesia, East Timor and Papua New Guinea. More recently, in vivo studies have documen
Mem. Inst. Oswaldo Cruz. Publicado em: 2014-08
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15. On the Brazilian Amazonian species of Acanthoscurria (Araneae: Theraphosidae)
In this study the Brazilian Amazonian species of Acanthoscurria Ausserer, 1871 are redescribed: A. geniculata (C.L. Koch, 1841), A. tarda Pocock, 1903, A. juruenicola Mello-Leitão, 1923, A. theraphosoides (Doleschall, 1871). Acanthoscurria simoensi Vol, 2000 and A. insubtilis Simon, 1892, previously known from French Guyana and Bolivia, respectively, are re
Zoologia (Curitiba). Publicado em: 2014-02
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16. Using fish assemblages in different habitats to develop a management plan for the Upper Essequibo Conservation Concession, Guyana
La Upper Essequibo Conservation Concession es una reserva en Guyana centro-oriental, administrada por Conservation International. El sitio está deshabitada por personas y mal estudiado. El primer estudio científico de peces fue en 2007 junto con la filmación del BBC documental naturaleza Lost Land of the Jaguar. Hábitats acuáticos fueron el canal princi
Biota Neotrop.. Publicado em: 2013-12
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17. Trophic ecology of Arapaima in Guyana: giant omnivores in Neotropical floodplains
Utilizando firmas de isotopos estables de nitrógeno y carbón, investigamos la ecología trófica e identificamos los grupos de peces que potencialmente mantienen a la Arapaima en los lagos inundables de la cuenca del río Essequibo, al suroeste de Guyana. Presentamos descripciones morfológicas de las estructuras alimentarias y tracto digestivo de la Arapa
Neotrop. ichthyol.. Publicado em: 2013-06
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18. Bilinguísmo: discurso de professores em área de froanteira, Bonfim-RR
The present study sought to analyze the speech teachers of Portuguese language of the municipality of Bonfim, on the border between Brazil, Guyana to check how these professionals deal with the bilingualism of your students in their teaching practices. This qualitative ethnographic research sought to understand how nature in a region where there is high prev
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/03/2012
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19. Taxonomic reassessment of the treehopper tribe Talipedini with nomenclatural changes and descriptions of new taxa (Hemiptera: Membracidae: Membracinae)
The tribe Talipedini Deitz is redefined and its boundaries are expanded with the inclusion of the following taxa: Erechtia Walker, 1858 (formerly placed in Membracini), Pseuderechtia gen. nov. (type species: Leioscyta neivai Fonseca, 1941), and Talipes Deitz, 1975 gen. reval. (formerly junior synonym of Trinarea Goding, 1926, the latter herein considered new
Zoologia (Curitiba). Publicado em: 2012-12
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20. Phylogenetic diagnosis and expanded description of the genus Mazarunia Kullander, 1990 (Teleostei: Cichlidae) from the upper Mazaruni River, Guyana, with description of two new species
We expand the description of the genus Mazarunia Kullander, 1990, explore morphological diagnostic characters for the genus and for its sister-group relationship with Guianacara Kullander & Nijssen, 1989 in a phylogenetic context, expand the description of M. mazarunii and describe two new species. Mazarunia can be diagnosed by the combination of numerous an
Neotrop. ichthyol.. Publicado em: 2012-09
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21. Variação geográfica de Hylaeamys yunganus (Thomas, 1902) na América do Sul (Rodentia: Sigmodontinae) / Geographic variation and phylogeography of Hylaeamys yunganus (Thomas, 1902) (Rodentia: Sigmodontinae)
Hylaeamys yunganus is a rodent of the Oryzomyini tribe presenting samples distributed through the Amazon rainforests and occupies a wide altitudinal gradient, which extends from sea level up to ca. 2,000m. Information available in the literature suggests that populations of H. yunganus from Venezuela, Colombia, Ecuador, Peru and western Brazil have large bod
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/09/2011
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22. Distribution of soil organic carbon fractions in old-growth forests in the Amazon Basin: the role of soil properties, leaf litter quality and climate / Distribuição das frações do carbono orgânico nos solos de florestas maduras na Bacia Amazônica: o papel das propriedades do solo, da qualidade da liteira e do clima
Soil organic carbon (SOC) stability is a function of environmental and biological conditions such as edaphic factors, climate and organic matter quality. Considering that a wide variation occurs in all these parameters across Amazonia, one could expect that there should be systematic variations in SOC fractions across the area. Understand the processes invol
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/09/2011
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23. Diversidade de mamíferos e aves do Chefe Rewa, Rupununi, Guiana do Sul
Reportamos os resultados de uma curta expedição às remotas cabeceiras do Rio Rewa, tributário do Rio Essequibo no interior da Guiana. Utilizamos uma combinação de armadilhas fotográficas, redes de neblina e avistamento para documentar a diversidade de mamíferos e aves encontrados na região. Nós registramos um total de 33 espécies de mamíferos, in
Biota Neotropica. Publicado em: 2011-09
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24. Guianacara dacrya, a new species from the rio Branco and Essequibo River drainages of the Guiana Shield (Perciformes: Cichlidae)
A new species of Guianacara is described from tributaries of the Essequibo River and the rio Branco in Guyana and northern Brazil. Guianacara dacrya, new species, can be diagnosed from all congeners by the possession of a unique infraorbital stripe and by the shape of the lateral margin of the lower pharyngeal jaw tooth plate. Guianacara dacrya can be furthe
Neotropical Ichthyology. Publicado em: 2011-03