Climatic Zones
Mostrando 25-36 de 39 artigos, teses e dissertações.
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25. DinÃmica vegetacional e climÃtica holocÃnica da Caatinga, na regiÃo do Parque Nacional do Catimbau, BuÃque - PE
The main objective of the present work was to describe the Holocene dynamics of the Caatinga vegetation, in the region of the National Park of Catimbau, BuÃque, PE, Brazil. Palynological analyses were carried out from clay, rich in plant organic-matter, deposited on the low slopes of the Serra do JerusalÃm, in the Brejo de SÃo Josà Farm (8 32â 45ââS
Publicado em: 2008
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26. Dinâmica de Sedimentação de Lodo em Lagoas de Estabilização / Sludge Sedimentation Dynamics in Stabilization Ponds
Stabilization ponds are an effective sewage treatment alternative for the climatic conditions prevailing in Brazil. In the present work, a primary facultative pond was studied, in the city of Natal, Rio Grande do Norte, Northeast Brazil. The aim of this study was to evaluate the sedimentation dynamics in the facultative pond. The pond was divided in three se
Publicado em: 2007
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27. The solar envelope and the right to the sun / O envelope solar e o direito ao sol
This work presents a study that investigates forms of regulation of access to the sun and its qualification, in the processes of urban planning and project of the building. Given the great availability of sun and natural light in the country, this regulation becomes recommendable. With the spread of the knowledge about the solar envelope and the introduction
Publicado em: 2007
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28. Dinâmica Costeira dos Campos petrolíferos Macau/Serra, litoral setentrional do Estado do Rio Grande do Norte
This thesis describes the general behavior of the northern shore of the State of Rio Grande do Norte relating beach profile morphology with hydrodynamic and sedimentological parameters. The Macau and Serra Oil Field are inserted on this area and are under accelerated coastal erosion. At these oil fields are installed oil wells from PETROBRAS, nowadays locate
Publicado em: 2005
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29. SANDY BEACH MORPHODYNAMICS AND MACROBENTHIC COMMUNITIES IN TEMPERATE, SUBTROPICAL AND TROPICAL REGIONS - A MACROECOLOGICAL APPROACH
A comprehensive study involving 52 microtidal beaches spanning from reflective to dissipative states and located in tropical, subtropical and temperate regions in the Atlantic, Pacific and Indian oceans was carried out to unravel the relative roles of latitude and beach morphodynamics in determining beach macrobenthic species richness, abundance, biomass and
Publicado em: 2003
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30. Entomological and ecological aspects of six sylvatic species of triatomines (Hemiptera, Reduviidae) from the collection of the National Biodiversity Institute of Costa Rica, Central America
A total of 797 specimens of wild adult triatomines, belonging to six species from the entomological collections of the Costa Rican National Biodiversity Institute, was studied from the standpoint of their relative abundance, as reflected by light traps, distribution in the country, seasonal variations and climatic and altitudinal preferences. Triatoma dimidi
Memórias do Instituto Oswaldo Cruz. Publicado em: 2001-08
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31. O Nordeste semi-arido : questões de economia politica e de politica economica
In the last 25 years, Brazil s Northeast region has been the object of various public or private development programs, all of them aiming to strengthen its regional economy. As a result of those efforts, high rates of economic growth were obtained, observable either at the global or sectoral level. This is particularly true of the urban-industrial activities
Publicado em: 1985
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32. The effect of climatic forcing on population synchrony and genetic structuring of the Canadian lynx
The abundance of Canadian lynx follows 10-year density fluctuations across the Canadian subcontinent. These cyclic fluctuations have earlier been shown to be geographically structured into three climatic regions: the Atlantic, Continental, and Pacific zones. Recent genetic evidence revealed an essentially similar spatial structuring. Introducing a new popula
National Academy of Sciences.
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33. Microgeographical Variation in Allozyme Frequencies in Avena barbata
Microgeographical distribution of alleles of five enzyme loci and one morphological variant has been determined within populations of A. barbata occupying sites that are transitional between different vegetational zones. The results show that the spatial distribution of alleles is nonrandom and highly correlated with habitat in patterns that parallel the dis
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34. Snow conditions may create an invisible barrier for lynx
The dynamics of Canadian lynx (Lynx canadensis) abundance are geographically structured according to the influence of large-scale climatic regimes. Here we demonstrate that this structuring matches zones of differential snow conditions, in particular surface hardness, as determined by the frequency of winter warm spells. Through a modified functional respons
National Academy of Sciences.
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35. Isolation of Strains Belonging to the Cosmopolitan Polynucleobacter necessarius Cluster from Freshwater Habitats Located in Three Climatic Zones
More than 40 bacterial strains belonging to the cosmopolitan Polynucleobacter necessarius cluster (Betaproteobacteria) were isolated from a broad spectrum of freshwater habitats located in three climatic zones. Sequences affiliated with the freshwater P. necessarius cluster are among the most frequently detected in studies on bacterial diversity in freshwate
American Society for Microbiology.
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36. Histology of spheroidal degeneration of the cornea in Labrador.
Nine specimens of the corneas of patients from Labrador and Northern Newfoundland affected by spheroidal degeneration (climatic droplet keratopathy) have been examined microscopically. Histochemical stains confirmed studies of similar corneal degenerations from other geographical areas that the droplets contain a protein which does not have all the character