954 resultados para Transformada de Hough


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Muscular dystrophy refers to a group of more than 30 genetical disorders characterized by progressive weakness and degeneration of the skeletal muscle. No effective therapy is available at present. Recent studies have reported that the transplantation of stem cells can offer an important potential therapy for genetic diseases. Adult bone marrow mesenchymal stem cells have been identified as a nonhematopoietic stem cell population capable of self-renewal with the ability to differentiate into many cell lineages, including bone, fat, cartilage and connective tissue. Because of their similarity with muscle progenitor cells, when they are injected in affected individuals, they are able to migrate into areas of skeletal muscle degeneration and participate in the regeneration process. The adipose tissue represents an alternative source of MSCs that, as the MSCs derived from bone marrow, are capable of in vitro differentiation into osteogenic, adipogenic, myogenic and chondrogenic lineages. The objective of this project is to investigate the “in vitro” myogenic potential of mesenchymal stem cells derived from murine bone marrow and adipose tissue. Four experimental groups were analyzed: mice from lineages Lama2dy-2J/J and C57black and, C2C12 lineage cells and transformed C2C12 expressing the eGFP protein. MSCs cultures were obtained by flushing the bone marrow femurs and tibials with α-MEM or by the subcutaneous and inguinal fat from the mice. Their characterization was done by flow cytometry and in vitro differentiation. Muscle differentiation was studied through the analysis of the expression of transcriptional factors involved in muscle differentiation and/or the presence and amount of specific proteins from muscle differentiated cell. The pluripotency from bone marrow MSCs of the two lineages was evidenced and, in the muscular differentiation... (Complete abstract click electronic access below)

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In the last decades it has been observed a substantial developing of the electrical energy demand in the societies all over the World. In consequence the electrical energy distribution companies are increasing the quantity of electrical energy through the electrical energy conductor cables, which had grown the sag in the towers of energy transmission. Furthermore, the construction of more transmission towers brings a lot of troubles due environmental protection laws. In this way, looking forward to increase the quantity of electrical energy transmitted through electrical cables conductors, reduce the need of constructing new transmission towers and the sag in them, we suggest in this work the replace of the traditional core of the conductors cables commonly used, made of steel, by a core made by a composite material, which one is made by carbon fibers pultruded with polymeric resins as matrix. In a order to evaluate if the resins more commonly used in structural composites can be applied as matrix to make possible to use the composite material as a core, we made carbon fibers systems pultruded with epoxy, phenolic and polyester resins as matrix and a mechanic and physic-chemistry characterization was done on the systems by Tensile and Poisson tests, differential sprobe calorimetry (DSC), thermogravimetric analysis (TGA) and Fourier transformed infrared spectroscopy (FTIR), following their correspondents standards

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This work aims to study several diffusive regimes, especially Brownian motion. We deal with problems involving anomalous diffusion using the method of fractional derivatives and fractional integrals. We introduce concepts of fractional calculus and apply it to the generalized Langevin equation. Through the fractional Laplace transform we calculate the values of diffusion coefficients for two super diffusive cases, verifying the validity of the method

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Pós-graduação em Letras - FCLAS

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Pós-graduação em Engenharia Mecânica - FEG

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Pós-graduação em Biociências - FCLAS

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Pós-graduação em Química - IQ

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Pós-graduação em Engenharia Mecânica - FEIS

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Pós-graduação em Engenharia Civil - FEIS

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The text argues that a linguistic analysis paired with the appreciation of the context of current social stands is highly legitimate, observing, however, that, in different situations, this so-called investigative-appreciative attitude has been transformed in actions and reactions that might become vulgarized in common place, or might even become disfigured in stupidity. The distortions in the assessment of the discourse of the other are now a widespread, the hunt for what is now conventionalized as the politically incorrect in language is just a sample of such a distortion. In this presentation, a number of cases of such a nature is analyzed against cases in which, inversely, the use of language is markedly polite, but the deviation of conduct is made more evident. The objective is to evaluate both cases via the role of intersubjectivity in the construal of discourse, aiming at verifying its conceptual counterpart, with special attention to evidence on the mutual conceptual engagement between interlocutors.