Cell Movement
Mostrando 13-24 de 1016 artigos, teses e dissertações.
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13. Nanobacteria-like particles : a threat to cell cultures
The main goal of this study is to alert researchers who work with cell cultures for the risk of contamination by structures called nanobacteria (NB). NB are tiny structures with size varying from 80 to 500 nm, commonly occurring in clusters and producing a biofilm which contains carbonate or hydroxyl apatite. The most likely source of cell culture contaminat
Publicado em: 2010
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14. O retorno dos devices reprimidos: uma análise comparativa entre a pré-história do cinema e o início da tecnologia móvel
With the objective of better understanding the cell phone as a device for cinematographic contents, or simply cine mobile, and in an attempt to get a glimpse of future possibilities for this new medium, this essay compares it with the origins of cinema, the very first actual steps of the illusion of movement, and more specifically with the Mutoscope. And thi
Publicado em: 2010
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15. Avaliação das forças, momentos e binding, produzidos por deformação de primeira ordem do fio NiTi .014 superelástico, em braquetes autoligáveis passivos estudo in vitro / Evaluation of force, moment and binding produced by first order deformation on a superelastic .014 Niti wire using passive self-ligated brackets in vitro study
Bracket characteristics and wire stiffness dictate the mechanical effects that nickel titanium wire deformation will cause upon teeth. The main variables associated to bracket characteristics include bracket length (that influence interbracket distance), and coefficient of friction. The purpose of this research was to compare how self ligated brackets such a
Publicado em: 2010
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16. Physiological implications of the regulation of vacuolar H+-ATPase by chloride ions
Vacuolar H+-ATPase is a large multi-subunit protein that mediates ATP-driven vectorial H+ transport across the membranes. It is widely distributed and present in virtually all eukaryotic cells in intracellular membranes or in the plasma membrane of specialized cells. In subcellular organelles, ATPase is responsible for the acidification of the vesicular inte
Brazilian Journal of Medical and Biological Research. Publicado em: 2009-02
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17. Actin-interacting and flagellar proteins in Leishmania spp.: bioinformatics predictions to functional assignments in phagosome formation
Several motile processes are responsible for the movement of proteins into and within the flagellar membrane, but little is known about the process by which specific proteins (either actin-associated or not) are targeted to protozoan flagellar membranes. Actin is a major cytoskeleton protein, while polymerization and depolymerization of parasite actin and ac
Genetics and Molecular Biology. Publicado em: 2009
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18. The expression and function of ARHGAP21 in the normal nervous system and with neoplasia / Analise da expressão e da função de ARHGAP21 em sistema nervoso normal e neoplasico
ARHGAP21 é uma proteína pertencente à família RhoGAP e apresenta atividade GAP sobre Cdc42 e RhoA, interage com ARF-GTPases e com a-catenina, modulando a dinâmica da actina associada às membranas do Golgi e a integridade das junções aderentes. Devido ao relato da elevada expressão de ARHGAP21 em tecido nervoso surgiu o objetivo da presente tese que
Publicado em: 2009
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19. Controle hormonal da defesa à herbivoria em tomateiro / Hormonal control of herbivory defense in tomato
Even though the cultivation of tomato has a high economical importance, this culture is classified as being of elevated risk because of it common infestation by pests and diseases. This problem makes this culture greatly dependent of the application of several agrochemicals, which leads to increase in cost of production, environmental damages and also facili
Publicado em: 2009
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20. Detecção do vírus da leprose dos citros nos tecidos da planta infectada e do ácaro vetor Brevipalpus phoenicis Geijskes (Acari: Tenuipalpidae) / Detection of Citrus leprosis virus C (CiLV-C) in the tissues of infected plants and of mite vector Brevipalpus phoenicis Geijskes (Acari: Tenuipalpidae)
Citrus leprosis is one of the most important diseases in the Brazilian citrus production due to the wide occurrence in orchards and also to the high costs involved in the chemical control of the mite vector. The disease affects the plant production and longevity and it is characterized by localized chlorotic and/or necrotic spots on the leaves, stems and fru
Publicado em: 2009
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21. An adaptive mesh strategy for high compressible flows based on nodal re-allocation
An adaptive mesh strategy based on nodal re-allocation is presented in this work. This technique is applied to problems involving compressible flows with strong shocks waves, improving the accuracy and efficiency of the numerical solution. The initial mesh is continuously adapted during the solution process keeping, as much as possible, mesh smoothness and l
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2008-09
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22. Regulatory role of semaforin-3A in the development of human T cells: inibitory effect on the migration of thymocytes mediated by the CXCL12. / Papel regulatório da semaforina-3A no desenvolvimento de células T humanas: efeito inibitório sobre a migração de timócitos mediada pela CXCL 12.
The thymus is the primary lymphoid organ, responsible for normal T cell development in vertebrates. This is a highly complex process that includes cell proliferation, death, migration as well as T cell receptor gene rearrangements. It takes place within the thymic lobules and depends on several types of interactions between developing thymocytes and the thym
Publicado em: 2008
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23. Molecular dynamics at Trypanosoma cruzi nucleus. / Dinâmica molecular no núcleo de Trypanosoma cruzi.
In Trypanosoma cruzi the replication sites are located at nuclear periphery. In order to analyse the dynamics of molecules involved in replication, Orc/Cdc6 was used as a marker of pre-replication machinery and PCNA as a marker of replication machinery during the cell cycle of epimastigote form. Both molecules presented two nuclear patterns: dispersed patter
Publicado em: 2008
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24. Comparação de desempenho entre as configurações celular, funcional e celular virtual através de simulação e projeto de experimentos
The appropriate choice of the production management system and the physical layout of the shop floor are fundamental for the viability of an industrial activity in the current globalized and highly competitive economy. More and more specialized products, with successively shorter life cycles seek to respond to the frequent market changes, demanding an agile
Publicado em: 2008