Cohesive Mechanisms
Mostrando 1-12 de 19 artigos, teses e dissertações.
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1. Educação e linguagem : os mecanismos coesivos na compreensão de problemas de aritmética
Como indicam os Parâmetros Curriculares Nacionais, um dos objetivos do Ensino Fundamental no Brasil é o de que os alunos sejam capazes de questionar a realidade formulando problemas e tratando de resolvê-los (PCN, 1998, p. 27). Na mesma perspectiva, um dos propósitos do terceiro ciclo, que corresponde ao sexto ano do Ensino Fundamental, em Matemática, �
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/06/2011
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2. A coesão por conectores no português medieval
The objective of this research is to investigate the cohesive mechanisms byconnectors in medieval Portuguese. We started from the assumption that themedieval Portuguese had different cohesive elements than in modern language,although they belong to a group of words rather prone to changes. Vulgar Latindiscarded almost all of the diverse conjunctions, and thu
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/04/2011
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3. Influência de variáveis de compactação na estrutura dos solos: caracterizações geotécnica, química, mineralógica e microestrutural / Influence of laboratory compaction variables in soils structure: geotechnical, chemical, mineralogical and microstructural characterizations
This research addressed the effect of laboratory methods of static and dynamic compaction on compaction parameters, mechanical strength and compressibility of three gneiss residual soils (two young and one mature soils) and two granite residual soils (one young and one mature soils) from the Minas Gerais State, Brazil. Disturbed soils samples were collected,
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/12/2010
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4. Fluidodinamica e secagem do polihidroxibutirato (PHB) em leito fluidizado pulsado rotativo / Fluid dynamic and drying of the poly-hydroxybutyrate (PHB) in rotating-pulsed fluidized bed
Poly-hydroxybutyrate (PHB) is polyester, completely biodegradable and biocompatible. The interest on its development, production and commercialization has arisen due to its biodegradability and production integrated to the sugar and alcohol chain. Drying is an important step of the PHB production because an adequate post-processing is achieved only at moistu
Publicado em: 2009
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5. Termos de consentimento livre e esclarecido: o gênero e sua estruturação
The goal of this work is to analyze Informed Consent texts (TCLE), used at the referring of research projects to Ethics Committees evaluations, concerning to the Resolution 196/96. This kind of study is relevant because of the research communitys necessity to elaborate those texts in a clear and cohesive way, so that people are able to understand them. To th
Publicado em: 2006
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6. Influence of a lipid phase on steam jet agglomeration of maltodextrin powders / Estudo da influencia de uma fase lipidica na aglomeração de pos alimenticios
Agglomeration involves the production of larger and stable particles by aggregation of fine particulated material, in order to enhance flowability, appearance and reconstitution in water. This work evaluated the contribution of an oil phase on the agglomeration mechanisms of food powders. Three different palm oil fractions (two oleins with melting point of 1
Publicado em: 2006
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7. Tissue plasminogen activator promotes platelet disaggregation in plasma.
We studied the disaggregation of human platelets by tissue-type plasminogen activator (t-PA). When added to a suspension of human platelets induced to aggregate in plasma with adenosine 5'-diphosphate, t-PA promoted disaggregation of platelets over several minutes. Addition of fresh plasma or purified human fibrinogen to disaggregated platelets facilitated (
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8. Molecular mechanisms determining the strength of receptor-mediated intermembrane adhesion.
The strength of receptor-mediated cell adhesion is directly controlled by the mechanism of cohesive failure between the cell surface and underlying substrate. Unbinding can occur either at the locus of the specific bond or within the bilayer, which results in tearing the hydrophobic anchors from the membrane interior. In this work, the surface force apparatu
The Biophysical Society.
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9. Mammalian cell function mediating recombination of genetic elements.
Recombination of segments of the SV40 genome by a variety of mechanisms is described. These include the faithful joining of linear segments that have flush termini as opposed to previously described cohesive or resected termini. Lack of involvement of viral proteins has been demonstrated for recombination of segments with homologous overlapping termini, but
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10. The complete nucleotide sequence of bacteriophage HP1 DNA.
The complete nucleotide sequence of the temperate phage HP1 of Haemophilus influenzae was determined. The phage contains a linear, double-stranded genome of 32 355 nt with cohesive termini. Statistical methods were used to identify 41 probable protein coding segments organized into five plausible transcriptional units. Regions encoding proteins involved in r
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11. Mutant woodchuck hepatitis virus genomes from virions resemble rearranged hepadnaviral integrants in hepatocellular carcinoma.
Although hepadnaviruses are implicated in the etiology of hepatocellular carcinoma, the pathogenic mechanisms involved remain uncertain. Clonally propagated integrations of hepadnaviral DNA into cellular DNA can be demonstrated in most virally induced hepatocellular carcinomas. Integration occurs at random sites in cellular DNA, but the highly preferred site
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12. Mechanisms of genome propagation and helper exploitation by satellite phage P4.
Temperate coliphage P2 and satellite phage P4 have icosahedral capsids and contractile tails with side tail fibers. Because P4 requires all the capsid, tail, and lysis genes (late genes) of P2, the genomes of these phages are in constant communication during P4 development. The P4 genome (11,624 bp) and the P2 genome (33.8 kb) share homologous cos sites of 5