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Mostrando ítems 31-40 de 2068
Electrochemical behavior of Ti-Mo alloys applied as biomaterial
(Pergamon-Elsevier B.V. Ltd, 2008-04-01)
Electrochemical investigation on the as-cast Ti-Mo alloys (4-20 Mo wt.%) applied as biomaterials in Na2SO4 and Ringer physiological solutions is reported. Analyses of the open-circuit potential indicated that all alloys ...
Construção de amostrador passivo de baixo custo para determinação de dióxido de nitrogênio
(Sociedade Brasileira de Química, 2006-04-01)
A new passive sampling system for monitoring NO2 in air has been developed to measure gas concentrations in indoor and outdoor air. The sampler is inexpensive, and easy to construct and operate. Nitrogen dioxide forms a ...
Vertical transmission of maternal covid-19 antibodies after coronavac vaccine: A case report
(2021-01-01)
The use of coronavirus disease 2019 RNA vaccines in pregnant women led to reports on the first cases of newborns with antibodies to sudden acute respiratory syndrome coronavirus 2 (SARS-CoV-2), a phenomenon that was unknown ...
Passive Immunity of Progeny from Broiler Breeders Vaccinated with Oil-Emulsion Bacterin Against Salmonella Enteritidis
(Amer Assoc Avian Pathologists, 2008-12-01)
Young poultry are very susceptible to Salmonella Enteritidis (SE) infections because of the absence of complete intestinal flora colonization and an immature immune system. This study evaluated the role of passive immunity ...
Passive Immunity of Progeny from Broiler Breeders Vaccinated with Oil-Emulsion Bacterin Against Salmonella Enteritidis
(Amer Assoc Avian Pathologists, 2008-12-01)
Young poultry are very susceptible to Salmonella Enteritidis (SE) infections because of the absence of complete intestinal flora colonization and an immature immune system. This study evaluated the role of passive immunity ...
Laboratory validation of a passive sampler for SO2 atmospheric monitoring
(2005)
O desempenho de um amostrador passivo foi testado sob exposição em câmara de Teflon. O SO2 fixado no filtro impregnado com solução de Na2CO3 1,0 x 10-2 mol L-1 foi extraído com uso de banho de ultra-som e solução de H2O2 ...
Effect of the Passive Ultrasonic Irrigation and the Apical Diameter Size on the Debridement Efficacy of Infected Root Canals: A Multivariate Statistical Assessment of Histological Data
(MDPI, 2021)
The removal of necrotic and vital pulp substrates and microorganisms and their toxins from the root canal system (RCS) has been found to be the basis for a successful endodontic treatment. In this study, our aim was to ...
Assessment of persistent organic pollutant in the atmosphere of Latin America
(American Chemical Society, 2014)
The widespread use and distribution of pesticides, industrial and urban chemicals and their consequent release into the environment is of great worldwide relevance. Persistent Organic Pollutants (POPs) are stable organic ...
Bacterial and chemical leaching of chalcopyrite concentrates as affected by the redox potential and ferric/ferrous iron ratio at 22 degrees C
(Elsevier B.V., 2014-11-10)
Biological oxidation of chalcopyrite by acidophilic and mesophilic bacteria becomes hindered over time due to passivation of the surface, making the mineral relatively recalcitrant to beneficiation in bioleaching processes. ...