Color Gradient
Mostrando 13-22 de 22 artigos, teses e dissertações.
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13. Estudo da clarificação de agua natural com turbidez baixa e cor moderada utilizando a solução aquosa obtida com as sementes de Moringa oleifera como coagulante
The specie Moringa oleifera stands out as one of the most promising sources of natural coagulants and it is an alternative coagulant to use instead of aluminum salts and iron salts objectivizing to eliminate particles in suspension on water. The present project set out to comparative study of the fast mixture conditions and flocculation conditions (mean aver
Publicado em: 2005
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14. Self-tuned vehicle parameters detection and estimation from vÃdeo sequences for traffic incident management.
This work proposes and compares three algorithms for vehicle detection, composed of two main stages, preprocess and process. The first will proceed with the selection of the region of interest (ROI) and the background learning phase. The ROI is a narrow and transversal-to-lane rectangular area wherein detection is achieved, its dimensions provides low proces
Publicado em: 2005
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15. Ethnicity and glutathione S-transferase (GSTM1/GSTT1) polymorphisms in a Brazilian population
The distribution of polymorphisms related to glutathione S-transferases (GST) has been described in different populations, mainly for white individuals. We evaluated the distribution of GST mu (GSTM1) and theta (GSTT1) genotypes in 594 individuals, by multiplex PCR-based methods, using amplification of the exon 7 of CYP1A1 gene as an internal control. In Sã
Brazilian Journal of Medical and Biological Research. Publicado em: 2004-04
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16. Um ambiente distribuido para rastreamentos de objetos em tempo real
This thesis deals with the problem of tracking objects from multiple static cameras. Each camera covers a specific area where the events take place, and the union of the images of the cameras cover the whole tracking area. The thesis presents a system that divides the tracking in two modules. The first module detects all the objects present in the tracking a
Publicado em: 2004
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17. Pigmentation and Acriflavine Resistance in Serratia marcescens
Stable, orange, acriflavine-resistant variants were selected by treatment of a wild-type, red, acriflavine-sensitive strain of Serratia marcescens with acriflavine. Visible, ultraviolet, infrared, and nuclear magnetic resonance spectra of purified pigment from the red strain were identical to those of the pigment from the orange strain, and the orange mutant
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18. Expression of CD4 by human megakaryocytes.
The CD4 antigen, which serves as the receptor for human immunodeficiency virus type 1 (HIV-1) on T cells, has been detected on human megakaryocytes. Recent evidence of impaired thrombopoiesis in HIV-1-related thrombocytopenia suggested that these cells could be directly infected by the virus and prompted a search for a receptor on megakaryocytes of normal su
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19. One scorpion, two venoms: Prevenom of Parabuthus transvaalicus acts as an alternative type of venom with distinct mechanism of action
Scorpion venom is a complex mixture of salts, small molecules, peptides, and proteins. Scorpions employ this valuable tool in several sophisticated ways for subduing prey, deterring predators, and possibly during mating. Here, a subtle but clever strategy of venom utilization by scorpions is reported. Scorpions secrete a small quantity of transparent venom w
The National Academy of Sciences.
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20. Morphology and Chemistry of Cell Walls of Micrococcus radiodurans
Walls of the pigmented strain of Micrococcus radiodurans showed several layers in the electron microscope. These layers include an outermost network structure removed by trypsin, a fragile soft layer containing hexagonally packed subunits, and a rigid layer penetrated by numerous holes. The two inner layers were separated by a process of autolysis, trypsin t
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21. Deregulated Bcl-2-immunoglobulin transgene expands a resting but responsive immunoglobulin M and D-expressing B-cell population.
We characterized the basis for the follicular lymphoproliferation in transgenic mice bearing a Bcl-2-immunoglobulin (Bcl-2-Ig) minigene representing the t(14;18) of human follicular lymphoma. Discriminatory S1 nuclease protection assays revealed that the Bcl-2-Ig transgene was overexpressed relative to endogenous mouse Bcl-2 in spleen and thymus. Western (im
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22. Intracellular and Plasma Pharmacokinetics of Saquinavir-Ritonavir, Administered at 1,600/100 Milligrams Once Daily in Human Immunodeficiency Virus-Infected Patients
Ritonavir-boosted saquinavir (SQV/r) is currently licensed as a twice-daily regimen. Reducing the pill burden with once-daily dosing may improve adherence. Intracellular concentrations of drugs must be related to the clinical efficacy of protease inhibitors. The aims of the study were to determine the cellular and plasma saquinavir and ritonavir concentratio
American Society for Microbiology.