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Registros recuperados: 23
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The song of the Brazilian population of Humpback Whale Megaptera novaeangliae, in the year 2000: individual song variations and possible implications Anais da ABC (AABC)
Arraut,Eduardo M.; Vielliard,Jacques M.E..
The song of the Brazilian population of the Humpback Whale Megaptera novaeangliae was studied in its breeding and calving ground, the Abrolhos Bank, Bahia, Brazil, from July to November 2000. Aural and spectral analyses of digital recordings were completed for approximately 20 song cycles, totaling 5 hours of song from 10 different recording events. We identified 24 note types, organized in five themes. All songs presented the same themes and the order in which they were sung did not vary. We registered the appearance of a note type and the disappearance of a phrase ending, which indicate that the song changed as the season progressed. Moreover, we detected individual variation in the way singers performed certain complex note types. As songs are...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Humpback Whale; Megaptera novaeangliae; Song; Brazilian population; 2000; Individual song variation.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652004000200028
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Vitamin D receptor alleles and bone mineral density in a normal premenopausal Brazilian female population BJMBR
Lazaretti-Castro,M.; Duarte-de-Oliveira,M.A.; Russo,E.M.K.; Vieira,J.G.H..
Studies on the association between vitamin D receptor (VDR) polymorphism and bone mineral density (BMD) in different populations have produced conflicting results probably due to ethnic differences in the populations studied. The Brazilian population is characterized by a very broad genetic background and a high degree of miscegenation. Of an initial group of 164, we studied 127 women from the city of São Paulo, aged 20 to 47 years (median, 31 years), with normal menses, a normal diet and no history of diseases or use of any medication that could alter BMD. VDR genotype was assessed by PCR amplification followed by BsmI digestion of DNA isolated from peripheral leukocytes. BMD was measured using dual energy X-ray absorptiometry (Lunar DPX) at the lumbar...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Vitamin D receptor genotype; Bone mineral density; Brazilian population.
Ano: 1997 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997000800003
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XRCC1 gene polymorphisms in a population sample and in women with a family history of breast cancer from Rio de Janeiro (Brazil) Genet. Mol. Biol.
Falagan-Lotsch,Priscila; Rodrigues,Marina S.; Esteves,Viviane; Vieira,Roberto; Amendola,Luis C.; Pagnoncelli,Dante; Paixão,Júlio C.; Gallo,Claudia V. De Moura.
The X-ray repair cross-complementing Group1 (XRCC1) gene has been defined as essential in the base excision repair (BER) and single-strand break repair processes. This gene is highly polymorphic, and the most extensively studied genetic changes are in exon 6 (Arg194Trp) and in exon 10 (Arg399Gln). These changes, in conserved protein sites, may alter the base excision repair capacity, increasing the susceptibility to adverse health conditions, including cancer. In the present study, we estimated the frequencies of the XRCC1 gene polymorphisms Arg194Trp and Arg399Gln in healthy individuals and also in women at risk of breast cancer due to family history from Rio de Janeiro. The common genotypes in both positions (194 and 399) were the most frequent in this...
Tipo: Info:eu-repo/semantics/article Palavras-chave: XRCC1 gene polymorphisms; Breast cancer susceptibility; Brazilian population.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000200008
Registros recuperados: 23
Primeira ... 12 ... Última
 

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