452 resultados para Afinidade


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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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

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Pós-graduação em Ciência e Tecnologia de Materiais - FC

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Mesenchymal stem cells (MSCs) are a heterogeneous population of cells that proliferate in vitro as plastic-adherent cells, have fibroblast-like morphology and can differentiate into bone, cartilage and fat cells. Therapeutic potential of MSCs have been studied in experimental models, such as rabbit, in Laboratory of Cell Engineering of Botucatu. However, no specific markers have been reported for expanded rabbit MSCs, which hampers the isolation of pure MSC populations by immunophenotypic characterization. Thus, the objective of this study was to produce monoclonal antibodies (mAbs) to rabbit MSCs. MSCs derived from rabbit bone marrow (BM) were isolated, cultured, expanded ex vivo, and immunized into three BALB/c mices, and spleen cells subsequently harvested were used to generate hibridoma cell lines secreting antibodies against MSCs. Hybridoma cells were screened by flow cytometry and antibody-producing cells were subjected to subsequent rounds of retests. MSC1-160 obtained the best positivity for IgG expression and was cloned by limiting dilutions and micromanipulation. Ascitic fluid from ten best clones was purified by affinity chromatography in Protein A-sepharose CL-4B column and purification control was performed by electrophoresis in agarose gels. The purified IgG were tested against rabbit MSCs, obtaining high positivity by flow Cytometry. In conclusion, we developed 10 mAbs, MSC1-160 A20, A30, A41, A47, A55, A60, A63, A69, A81, and A82, that recognize rabbit MSC cell surface antigens showing potential for immunophenotypic characterization of rabbit MSC cell lines

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This work aims to make the closed loop control of a three phase induction motor, through the integration of the following equipment: a frequency inverter, the actuator system; a programmable logic controller (PLC), the controller; an encoder, the velocity sensor, used as a feedback monitoring the control variable and the three-phase induction motor, the plant to be controlled. The control is performed using a Proportional - Integrative - Derivative (PID) approach. The PLC has a help instruction, which performs the auto adjustment of the controller, that instruction is used and confronted with other adjustment methods. There are several types of methods adjustments to the PID controllers, where the empirical methods are addressed in this work. The system is deployed at the Interface and Electro Electronic Control laboratory in the Universidade Estadual Paulista Júlio Mesquita Filho, Guaratinguetá, São Paulo, then, in the future, this work becomes an experiment to be conducted in the classroom, allowing undergraduate students to develop a greater affinity to the programs used by the PLC as well as studies of undergraduate and graduate works with the help of assembly made

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O presente trabalho tem por objetivo analisar a experiência de uma oficina de narração de histórias, a oficina Canto dos Contos, realizada no contexto terapêutico de um Centro de Atenção Psicossocial (um CAPS), equipamento do Sistema Único de Saúde (o SUS), na cidade de São Paulo, em 2012. Considerando o CAPS como parte fundamental da reforma psiquiátrica brasileira, a oficina expressiva de narração de histórias foi buscando, ao longo de seu percurso, delinear seus limites e marcar suas diferenças em relação aos espaços terapêuticos já existentes no CAPS. Assim, a partir da escuta conjunta e apreciação de narrativas, acessamos lembranças resgatadas pelos participantes e pudemos criar, relembrar e renovar memórias antes confusas e esquecidas. Como resultado final, rodas de narrativas foram realizadas dentro e fora do espaço terapêutico do CAPS e um livro foi publicado. Essa presente contextualização e reflexão acerca de um trabalho realizado por uma arte/educadora em um Centro de Atenção Psicossocial faz-se oportuna, uma vez que os CAPS’s e a saúde mental como um todo são um campo que vem se abrindo, cada vez mais, para profissionais de áreas artísticas, tanto pela afinidade que as Artes sempre tiveram com pensamentos que rompem com paradigmas de realidade, quanto pela potência terapêutica existente em práticas expressivas. Esperamos que pensar e avaliar a narração de histórias utilizada como instrumento no percurso terapêutico dos pacientes de um CAPS possa contribuir para que trabalhos semelhantes, neste e em outros contextos, aprimorem as experiências aqui descritas.

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The mathematical problem solving is very important in the student's school career, leading him to develop his creativity and self-confidence. The way the teacher explains specific content may interfere in the student learning. Some researches show that the teacher trust and his problem solving rapport lead to a more satisfying job. This research focused on students of the course PARFOR at UNESP Bauru. This work was performed in order to investigate the affinity, trust and attitudes toward mathematical problem solving, the performance from who have positive and negative attitudes and the results that may be generated during class

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A dosagem do etanol durante a produção de medicamentos, bebidas e combustíveis tem se mostrado bastante importante para o aumento de rendimento dos processos e qualidade dos produtos. Embora existam vários métodos para determinar a concentração do etanol, os enzimáticos são os mais interessantes por serem rápidos, precisos, de fácil manuseio e baixo custo. O objetivo geral desse trabalho foi a elaboração de um Kit de quantificação enzimática de etanol, utilizando a enzima álcool desidrogenase I recombinante de S. cerevisiae (Adh1). Para isso, o gene codificador da enzima álcool desidrogenase I (ADH1) de levedura foi clonado no vetor pET28a para expressão em E. coli (BL21). Em seguida, a produção e solubilidade da enzima álcool desidrogenase I foi determinada, sendo definida uma condição ideal de produção e purificação da proteína recombinante por cromatografia de afinidade. A atividade enzimática da álcool desidrogenase I purificada foi determinada através de ensaios já padronizados na literatura (UV), bem como sua estabilidade em diversas condições de tempo e temperatura. Os resultados obtidos aqui demonstraram que a enzima obtida apresentou boa atividade biológica in vitro, com sensibilidade na detecção de no mínimo 2,3 x 10–4 g/L de etanol em 2 minutos. Além disso, a proteína purificada teve sua atividade preservada quando estocada a - 20°C durante 120 dias, características que possibilitarão que a enzima álcool desidrogenase I recombinante, purificada pela metodologia apresentada nesse trabalho, seja utilizada em um kit de quantificação enzimática de etanol rápido, preciso e de baixo custo

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Fracture surfaces are the fracture process marks, taht it is characterized by energy release guieded by failure mode. The fracture toughness express this energy em stress and strain terms in pre-cracked samples. The strectch zone is the characteristic region forms by the transition of fatigue fracture and final fracture and it width demonstrate the relation with failure energy release.The quantitative fractography is a broadly tool uses in failure surfaces characterization that it can point to a material’s aspect or a fracture process. The image processing works like an investigation tool, guinding a lot of studies in this area. In order to evaluate the characterization effectivity and it respectivity studies, it used 300M steel that it was thermal treated by an aeronautical process known and it characterized by tensile test and energy dispersive spectroscopy (EDS). The tensile test of this material, made by ASTM E8, allowed the head treatment effectivity confirmation, beyond of mechanics porperties determination. The EDS confirmed the material composition, beyond of base the discussion about fracture mechanism presence. The fracture toughness test has also made, that it works to obtain the fracture surfeaces studies below self-similarity and self-affinity approaches. In front of all the exposed it was possible to conclude that the fractal dimension works like a study parameter of fracture process, allowinf the relation of their values with changes in thickness, which interferes directly in material’s behaviour in fracture toughness approach

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Fracture surfaces express sequences of events of energy release with crack propagation in metal alloys, the evolution of topographic features can indicate the lines of load action, failures during the use or processing. The quantitative fractography is an important tool in the study of fracture surfaces, because it allows their interpretation and characterization. In order to evaluate the effectiveness of the characterization of fracture surfaces grounded on concepts such as selfsimilarity and self-affinity, it used the 15-5PH steel that was characterized by metallographic and tensile tests. The metallography allows the microstructural characterization of this steel and proved the presence of the martensite phase in the slats form and a fine-grained, both in the radial and in the axial direction of the dowel. The tensile test (ASTM E8) of this material allowed the determination of the mechanical properties, so based on the obtained results it was possible to affirm that the 15-5PH steel has high mechanical properties and a good stretch. Besides, the specimens also underwent testing of crack propagation, standardized by ASTM E647-00, thus it was obtained the fracture surfaces for characterization under monofractal and multifractal approaches. In front of all the exposed it was possible to conclude that in all measurements the correlation between the crack tip position and the fractal dimension was established in accordance with changes in the thickness and in the fracture micromechanisms presents. Furthermore, the multifractal approach was more sensitive to these variations allowing a more detailed characterization of the morphology

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The use of trails in protected areas allows a closer relationship with the elements of nature and the realization of dynamic activities of environmental education. Through these, individuals, school groups or other affinity groups can uncover the environment, to know him better and act with greater consistency in its conservation. The idea of settleling an interpretative trail in the Parque Natural Municipal Petronilla Markowicz (PNMPM), located 05 km from the center of Bragança Paulista (SP), comes up with the need for planning to use the tracks of the Unit for Environmental Education. It is therefore in the context of interpreting the environments of tracks with minimal environmental impact that this study sought to survey all the tracks PNMPM for future deployment of an interpretative trail seeking the quality of environmental experience and easy use by visitors.

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The Canine Visceral Leishmaniasis is a chronic disease of endemic character, caused by Leishmania Chagasi in Americas. The inoculation of the promastigote form in the individual triggers a local and widespread immune reaction with formation of inflammatory infiltrates and deposition of immune complexes in tissues. Initial clinical symptoms of the disease are: weight reduction, hepatomegaly, splenomegaly and, according to the disease chronicity, signs such as alopecia, erythema, onychogryphosis, arthropathies, renal diseases, pyoderma, seborrheic dermatitis, muscle atrophy and Ocular diseases. Ocular diseases are often reported and are result of the direct parasitism or immune-mediated mechanisms caused by the disease. The Leishmania spp have greater affinity for the anterior segment, so that anterior uveitis is one of the most frequently diagnosed injuries. Blepharitis diffuse and Keratoconjunctivitis also appear as important ocular changes. In histological section, inflammatory infiltrates and macrophages with amastigote form are observed in all ocular tissues, with the exception of the retina and optical nerve. In the clinical analysis and disease diagnosis, should be considered the differential diagnosis, such as Ehrlichiosis and systemic hypertension, because these may cause some ocular manifestations similar to those observed in leishmaniasis