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Expression of beta 2 integrin (CD18) in embryonic mouse and chicken heart

Integrins are heterodimeric receptors composed of α and β transmembrane subunits that mediate attachment of cells to the extracellular matrix and counter-ligands such as ICAM-1 on adjacent cells. β2 integrin (CD18) associates with four different α (CD11) subunits to form an integrin subfamily, which has been reported to be expressed exclusively on leukocytes. However, recent studies indicate...

Numerical model for the prediction of dilute, three-dimensional, turbulent flui...

A numerical model for dilute, three-dimensional, turbulent, incompressible fluid-solid particle flows and its application to a demonstration problem are presented. An Eulerian description is used to model the flow of the fluid (carrier) phase, and the governing equations are solved using a control-volume finite element method (CVFEM). The motion of the solid (particulate) phase is simulated using a Lagrangian a...

Associação do polimorfismo G894T do gene da òxido nítrico sintase endotelial (n...

Callus cell culture of Pothomorphe umbellata (L.) under stress condition leads ...

Pothomorphe umbellata (L.) known on Brazil as Caapeba has a number of popular medicinal use, and it has been studied in relation to its pharmacological activity. Peroxidase specific activity (units/mg protein) was evaluated in callus cell culture samples of the P.umbellata, grown in two different MS medium (media 1 and media 2), submitted to 16 hours photoperiod or kept in darkness. Cell growth rate curve showe...

Avaliação de cultivares de gergelim no outono - inverno na região Norte-Flumine...

2006

Studies of efficiency in a perforated rotating disc contactor using a polymer-p...

The mass transfer process in a perforated rotating disc contactor (PRDC) using a polymer-polymer aqueous two-phase system was investigated. The results show that the efficiency did not show a regular trend with the increase of the dispersed phase velocity and increased with the rotation velocity. The separation efficiency was higher for three rotating discs than for four discs. The increase in tie-line length d...

L’emploi de métakaolin dans la production de béton écologiquement efficace

Les matériaux d'addition font actueÌlement pâÌtie des développements les plus récents dans la production du bétoÌr, caÌ Ì'üÍilisation des additions apporte uno amélioration des proprìáés mécâniques et de Ìa durabilité dü béton. D'autre part, leur utilisation a pour objectif de réduire la consommation de ciment. en conlribuant de maniere simple et économique à résoudre les problèmes liés à l'environnenent. Cet a...

Associação micorrízica e teores de nutrientes nas folhas de cupuaçuzeiro (Theob...

As micorrizas arbusculares podem ser importantes na nutrição das plantas em solos ácidos e de baixa fertilidade, como são os da Amazônia de modo geral. Avaliaram-se a colonização radicular por fungos micorrízicos arbusculares (FMAs) nativos e os teores de nutrientes em cupuaçuzeiro e guaranazeiro em um sistema agroflorestal no município de Manaus, Amazonas. Dez plantas de cada espécie foram selecionadas, das qu...

Colimetria de água marinha em áreas de cultivo e extrativismo de mexilhões no m...

Analisaram-se amostras de água do mar de cinco pontos da Baía de Guanabara quanto ao número mais provável (NMP) de coliformes totais e de Escherichia coli usando-se o método fluorogênico, e verificaram-se o pH, a salinidade e a temperatura dos locais de colheita. As contagens de E. coli nas amostras das estações Icaraí, Boa Viagem e Santa Cruz foram, em média, acima do previsto na legislação, enquanto que nas e...

A Lagrangian-Eulerian model of particle dispersion in a turbulent plane mixing ...

A Lagrangian-Eulerian model for the dispersion of solid particles in a two-dimensional, incompressible, turbulent flow is reported and validated. Prediction of the continuous phase is done by solving an Eulerian model using a control-volume finite element method (CVFEM). A Lagrangian model is also applied, using a Runge-Kutta method to obtain the particle trajectories. The effect of fluid turbulence upon partic...