South Central Chile
Mostrando 13-24 de 34 artigos, teses e dissertações.
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13. Prehistoric tuberculosis in America: adding comments to a literature review
Tuberculosis is a prehistoric American human disease. This paper reviews the literature and discusses hypotheses for origins and epidemiological patterns of prehistoric tuberculosis. From the last decades, 24 papers about prehistoric tuberculosis were published and 133 cases were reviewed. In South America most are isolated case studies, contrary to North Am
Memórias do Instituto Oswaldo Cruz. Publicado em: 2003-01
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14. Taxonomic revision of the Bufo granulosus complex (Amphibia, Anura, Bufonidae) / Revisão taxonômica das espécies de Bufo do complexo granulosus (Amphibia, Anura, Bufonidae)
O principal objetivo deste trabalho foi estudar a variação morfológica do grupo Bufo granulosus, procurando determinar suas unidades evolutivas. Esse grupo, como concebido até o presente, é comporto por 6 espécies (Bufo granulosus, Bufo bergi, Bufo dorbignyi, Bufo fernandezae, Bufo pygmaeus e Bufo beebei), e 10 subespécies de Bufo granulosus (merianae
Publicado em: 2003
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15. Frontogenesis over south america and precursors for the cold surges in the state of São Paulo / Frontogênese na América do Sul e precursores de friagem no estado de São Paulo
Intense cold air incursions in São Paulo (freezes) occur on the average once a year during the months of April through September and 80% during the months of May through August. The central part of the South American continent is frontogenetic due to the horizontal deformation field in the lower troposphere on winter. Composites of the frontogenesis functio
Publicado em: 2003
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16. Frontogênese na América do Sul e precursores de friagem no estado de São Paulo / Frontogenesis over south america and precursors for the cold surges in the state of São Paulo
Os sistemas frontais que causam friagem em São Paulo ocorrem em média uma vez por ano. Oitenta por cento (80%) das incursões frias intensas acontecem de maio a agosto. A configuração do campo de deformação horizontal na região central do continente sulamericano favorece frontogênese no inverno. Os compostos de campos diagnósticos de função fronto
Publicado em: 2003
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17. 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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18. Araucnephia iberaensis n. sp., a Neotropical Black Fly with a Peculiar Distribution (Diptera-Simuliidae)
Araucnephia Wygodzinsky & Coscarón is a Neotropical black fly genus in which only one species from Central Chile is known. Another species has now been found in Corrientes province on the eastern side of the Iberá tropical swamps of Argentina, on the western border of the mountainous region of southern Brazil. This new species, A. iberaensis, is herein des
Memórias do Instituto Oswaldo Cruz. Publicado em: 2002-01
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19. Evolutionary-genetical studie of modern and archaeological samples of maize (Zea mays mays, L.) and beans (Phaseolus vulgaris, L.). / Estudo genético-evolutivo de amostras modernas e arqueológicas de milho (Zea mays mays, L.) e feijão (Phaseolus vulgaris, L.).
Seven archaeological samples of maize (Zea mays mays, Lineu), 620±60 to 990±60 years old and one sample of bean (Phaseolus vulgaris, Lineu), 301 ± 39 years old (based on C14 datation), were studied by biomolecular techniques to understand their historical origin. They were found in indigenous subterranean silos, from archaeological sites at Januária (Per
Publicado em: 2001
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20. Regional crustal thickness and precipitation in young mountain chains
Crustal thickness is related to climate through precipitation-induced erosion. Along the Andes, the highest mountains and thickest crust (≈70 km) occur at 25° south, a region of low precipitation. Westerly winds warm passing over the Atacama Desert; precipitation is modest in the High Andes and eastward over the Altiplano. Severe aridity, hence low erosio
National Academy of Sciences.
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21. Genetic Diversity, Distribution, and Serological Features of Hantavirus Infection in Five Countries in South America
Since 1995 when the first case of hantavirus pulmonary syndrome (HPS) was reported in Patagonia, there have been more than 400 cases of HPS reported in five countries in South America. The first case of HPS was associated with Andes (AND) virus. In this study, we report on the genetic diversity, geographical distribution, and serological features of hantavir
American Society for Microbiology.
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22. Dynamics of Clinical and Environmental Vibrio parahaemolyticus Strains during Seafood-Related Summer Diarrhea Outbreaks in Southern Chile ▿
Seafood consumption-related diarrhea became prevalent in Chile when the pandemic strain of Vibrio parahaemolyticus serotype O3:K6 reached a region in the south of Chile (Region de los Lagos) where approximately 80% of the country's seafood is produced. In spite of the large outbreaks of clinical infection, the load of V. parahaemolyticus in shellfish of this
American Society for Microbiology (ASM).
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23. Genome analysis of South American adenovirus strains of serotype 7 collected over a 7-year period.
DNA restriction analysis was carried out on a sample of 212 epidemiologically unrelated adenovirus (Ad) strains of serotype 7 isolated in Chile, Uruguay, and Argentina from nasopharyngeal aspirates of children with acute lower respiratory disease between 1984 and 1990. The identified genome types were Ad7b (n = 12), Ad7c (n = 21), and Ad7h (n = 179). The ana
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24. Intercontinental spread of a genetically distinctive complex of clones of Neisseria meningitidis causing epidemic disease.
Strains of Neisseria meningitidis responsible for an epidemic of meningococcal disease occurring in Norway since the mid-1970s and for recent increases in the incidence of disease in several other parts of Europe have been identified by multilocus enzyme electrophoresis as members of a distinctive group of 22 closely related clones (the ET-5 complex). Clones