Equatorial Regions
Mostrando 1-12 de 53 artigos, teses e dissertações.
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1. Molecular findings from influenza A(H1N1)pdm09 detected in patients from a Brazilian equatorial region during the pandemic period
After the World Health Organization officially declared the end of the first pandemic of the XXI century in August 2010, the influenza A(H1N1)pdm09 virus has been disseminated in the human population. In spite of its sustained circulation, very little on phylogenetic data or oseltamivir (OST) resistance is available for the virus in equatorial regions of Sou
Mem. Inst. Oswaldo Cruz. Publicado em: 14/10/2014
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2. Impactos de El Niño y La Niña en las lluvias del Perú (1965-2007)
The impacts of El Niño (EN) and La Niña (LN) in rainfall in Peru are evaluated using monthly data (1965-2007) of 155 stations distributed over the three hydrographic drainages of Peru: 85 in the Pacific (VP), 21 in the Lake Titicaca (VT) and 49 in the Amazon (VA). To classify El Niño and La Niña is used the Index Troup Southern Oscillation (SOI) based on
Rev. bras. meteorol.. Publicado em: 2014-06
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3. Variabilidade oceânica associada à variabilidade climática da vazão na bacia do rio São Francisco / Oceanic variability related to river outflow at São Francisco Hydrographic basin
This research concerned to propose a valuation about the relationship between annual oceanic behavior and river outflow at São Francisco Hydrographic Basin, in Brazil, for the period from 1968 to 2004. Linear model based on multiple regression were built for annual river outflow at Ponte da Taquara, located at High São Francisco sub-basin. Climatic indexes
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/02/2012
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4. Genetic-morphometric variation in Culex quinquefasciatus from Brazil and La Plata, Argentina
Variation among natural populations of Culex (Culex) quinquefasciatus Say is associated with different vectorial capacities. The species Cx. quinquefasciatus is present in the equatorial, tropical and subtropical zones in the Brazilian territory, with intermediate forms between Cx. quinquefasciatus and Culex pipiens occurring in regions of latitudes around 3
Memórias do Instituto Oswaldo Cruz. Publicado em: 2010-08
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5. Silicium, light and substrate in the pineapple [Ananas comosus (L.) Merr âGomo de Melâ] micropropagation / SilÃcio, luz e substrato na micropropagaÃÃo de abacaxizeiro [Ananas comosus (L.) Merr âGomo de Melâ]
The present work aimed to evaluate silicate sources, natural light, alternative component to the agar and efficient substrates in the micropropagation of pineapple âGomo de Melâ through developmental and anatomical analyses. The pineapple shoots etiolating was promoted in vitro using the MS medium testing different concentrations of ANA and GA3. It was eva
Publicado em: 2009
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6. Determinação dos mecanismos de ação envolvidos nas atividade antiulcerogenica e antioxidantes de Rhizophora mangle L / Determination of the mechanisms of action in the antiulcerogenic and antioxidant activities of Rhizophora mangle L
The pharmacological research has been focusing on the folk medicine knowledge in order to establish the scientific basis of their pharmacological effects. Nowadays, tannins play a prominent role because of its high antioxidant capacity and, due to the progress made in the analysis and identification of these compounds and their therapeutic possibilities. Amo
Publicado em: 2009
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7. Análise multi-espectral dos eventos cíclicos de Carinae / Multi-spectral analysis of the cyclic events of Eta Carinae
In this thesis, a multi-wavelength study on the cyclic events of Eta Carinae was performed. The presence of a hole in the polar region of the Homunculus was confirmed by the velocity maps of the [Fe II] 12567 line. The blue-shifted component of the He I 10830, detected towards the NW lobe, was mapped and it is in the equatorial plane. It was observed that wi
Publicado em: 2009
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8. ANÁLISE DA DINÂMICA DA ATENUAÇÃO POR CHUVAS EM REGIÕES TROPICAIS / DYNAMIC ANALYSIS OF RAIN ATTENUATION IN TROPICAL REGIONS
The main effect causing non-availability in radio communication systems operating in frequencies above 10GHz, is the rain attenuation, particularly the heavy convective rain that is predominant in tropical regions. This thesis presents a detailed study and modelling of the dynamics of rain attenuation in terrestrial links and earthspace links, based on data
Publicado em: 2008
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9. Mesospheric 2-Day waves observed simultaneously in the equatorial and low latitudes regions of Brazil
Este trabalho tem como base medidas dos ventos da parte superior da mesosfera e da baixa termosfera obtidas simultaneamente através de radares meteóricos em São João do Cariri (7.4ºS, 36.5ºO) e Cachoeira Paulista (22.7ºS, 45.0ºO). As ondas atmosféricas de escala planetária com períodos próximos de 2 dias são investigadas, as quais estiveram pres
Revista Brasileira de Geofísica. Publicado em: 2007
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10. Estudo de frentes mesosféricas na região equatorial / Study of mesospheric fronts in the equatorial region
An extensive study on mesospheric fronts was carried out by means of mesospheric airglow image observation at at São João do Cariri, PB (7,4oS; 36,5oW) from July 2004 to December 2005. All sky airglow images, meteor radar wind and TIMED/SABER satellite temperature data were used in order to investigate physical scenario of the mesospheric front. Three diff
Publicado em: 2007
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11. Cerrado assemblages of reptiles and amphibians along the drainage of Rio Tocantins and the impact of hydroelectric power plants on their conservation / Assembléias de répteis e anfíbios do Cerrado ao longo da bacia do rio Tocantins e o impacto do aproveitamento hidrelétrico da região na sua conservação
The Cerrado herpetofauna was studied along the basin of the Tocantins river using three distinct and complementary approaches. First, a fast sampling scheme, covering all the studied area, was conducted in 11 sites between the Central Plateau, in the state of Goiás, and the northern portion of the Tocantins depression, at the border of the states of Tocanti
Publicado em: 2007
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12. AS AVES PROCELLARIIFORMES DO BRASIL: CATÁLOGO, DISTRIBUIÇÃO GEOGRÁFICA E PADRÃO SAZONAL DAS OCORRÊNCIAS.
A systematic catalogue of Procellariiformes confirmed to Brazil, based on extensive literature surveys and studies of museum specimens, is presented. The patterns of geographical distribution and seasonality of occurrences of these birds along the Brazilian seas are also described. The Brazilian Procellariiformes includes (1) birds from the North Hemisphere,
Publicado em: 2006