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The influence of melt treatment process on the quality and permormance [i. é pe...
Puga, Hélder; Barbosa, J.; Silva, F. S.The performance of a mechanical component is often limited by the intrinsic characteristics of the materials used or by weaknesses/limitations inherent to the manufacturing process. Despite their widespread use, the casting of aluminum alloys is not easy since they are prone to coarse and heterogeneous structures, usually dendritic. Moreover they are susceptible to hydrogen absorption during melting, requiring ...
Comparative study of the tarnishing resistance of several coloured base gold al...
Carvalho, O.; Soares, Delfim; Fonseca, A. Maurício C.; Silva, F. S.The stability of coloured gold alloys may be dependent on the environment that involves them. This paper is concerned with the effect of an artificial sweat solution in the stability of several gold base alloys with different colours. The changes in the samples physical properties, colour, brightness, and reflectance were measured for several periods of immersion. Two types of alloys (purple and blue coloured a...
Desenvolvimento e aplicação de método GC-MS/MS para análise simultânea de 17 HP...
Cristale,J.; Silva,F. S.; Marchi,M. R. R.Os hidrocarbonetos policíclicos aromáticos (HPAs) estão associados ao aumento da incidência de diversos tipos de cânceres no homem. Essas moléculas são formadas principalmente na queima incompleta de matéria orgânica, sendo encontradas em todos os compartimentos ambientais. Órgãos regulamentadores das áreas ambiental e de saúde ocupacional consideram 17 HPAs como contaminantes atmosféricos prioritários. Este tr...
Genetic diversity in native and commercial breeds of pigs in Portugal assessed ...
Vicente, António; Carolino, M. I.; Sousa, M. C.; Ginja, C.; Silva, F. S.; Martinez, A. M.; Vega-Pla, J. L.; Carolino, N.; Gama, L.Population structure and genetic diversity in the Portuguese native breeds of pigs Alentejano (AL), Bísaro (BI), and Malhado de Alcobaça (MA) and the exotic breeds Duroc (DU), Landrace (LR), Large White (LW), and Pietrain were analyzed by typing 22 microsatellite markers in 249 individuals. In general, the markers used were greatly polymorphic, with mean total and effective number of alleles per locus of 10.68 ...
Tratamento homeopático da infestação por Dermatobia hominis (Linnaeus Jr, 1781)...
ALMEIDA, L. R. de; SILVA, F. S.; FONSECA, A. H. da; SOARES, J. P. G.; LUCKE, I.2007
Resíduos no centro de pesquisas do HCPA : origem, classificação e destino
Schlatter, R. P.; Lavinsky, Luiz; Silva, F. S.; Grossmann, F. R. G.
Resíduos no centro de pesquisas do HCPA : origem, classificação e destino
Izquierdo, Rodrigo; Lavinsky, Luiz; Schlatter, R. P.; Silva, F. S.; Grossman, F.R.G.
Sandflies (Diptera: Psychodidae) of the Amazônia of Maranhão. V. Seasonal occur...
REBÊLO,J. M. M.; OLIVEIRA,S. T. de; SILVA,F. S.; BARROS,V. L. L.; COSTA,J. M. L.In this paper, the seasonal abundance of 25 sandfly species (1 of the Brumptomyia genus and 24 of the Lutzomyia genus) found at P1V5, municipal district of Buriticupu, Maranhão State, is discussed. The capture was carried out from 18:00 P.M. to 6:00 A.M., once a month, from January to December 1996. CDC light traps were set up in the forest, in the peri and intradomicile environments. Five species were only fou...
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