1000 resultados para Nogueira, Ricardo Raimundo, 1746-1827.
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Mode of access: Internet.
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Mode of access: Internet.
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El libro de Lattuada, Nogueria y Urcola (2015) forma parte de una serie de investigaciones que los autores vienen realizando en conjunto sobre la temática en los últimos años. El eje principal del mismo trata sobre el análisis de las políticas de desarrollo rural en Argentina, durante el período comprendido entre los años 1984-2014
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A literatura é um tipo de conhecimento que faz uso da palavra com a finalidade de projetar realidades possíveis. Para tanto, a mimese literária tem na experiência vivencial a verossimilhança que torna possível a apreensão da obra literária como fenômeno interpretativo. Nesse processo de composição, o gênero literário converte-se no conjunto de convenções que o autor se vale para fazer-se inteligível a seu público. As narrativas bíblicas e, em especial, o Evangelho Segundo São Mateus, possuem elementos que permitem sua leitura como obras literárias próprias da Antiguidade, cujas estratégias narrativas se mostram construtoras de representação verossímil da realidade. Para tanto, o narrador do Evangelho Segundo São Mateus utilizou-se daquelas convenções que se conformavam ao horizonte de expectativas de seu público e que articulam experiências advindas da literatura greco-romana e da literatura judaica. No caso da Paixão de Cristo Segundo São Mateus, o narrador empreende um conjunto de estratégias narrativas que favorecem sua condução da leitura da narrativa de acordo com sua perspectiva. Nesse processo, vale-se de uma estrutura que combina a biografia greco-romana àquela já consagrada na literatura bíblica. Dessa forma, a Paixão de Cristo nos é apresentada como parte final da história, numa perspectiva paradigmática e, ao mesmo tempo, como realização das Escrituras, que figuram e profetizam a respeito de Jesus e a natureza redimensionadora e universalizadora da salvação.
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A literatura é um tipo de conhecimento que faz uso da palavra com a finalidade de projetar realidades possíveis. Para tanto, a mimese literária tem na experiência vivencial a verossimilhança que torna possível a apreensão da obra literária como fenômeno interpretativo. Nesse processo de composição, o gênero literário converte-se no conjunto de convenções que o autor se vale para fazer-se inteligível a seu público. As narrativas bíblicas e, em especial, o Evangelho Segundo São Mateus, possuem elementos que permitem sua leitura como obras literárias próprias da Antiguidade, cujas estratégias narrativas se mostram construtoras de representação verossímil da realidade. Para tanto, o narrador do Evangelho Segundo São Mateus utilizou-se daquelas convenções que se conformavam ao horizonte de expectativas de seu público e que articulam experiências advindas da literatura greco-romana e da literatura judaica. No caso da Paixão de Cristo Segundo São Mateus, o narrador empreende um conjunto de estratégias narrativas que favorecem sua condução da leitura da narrativa de acordo com sua perspectiva. Nesse processo, vale-se de uma estrutura que combina a biografia greco-romana àquela já consagrada na literatura bíblica. Dessa forma, a Paixão de Cristo nos é apresentada como parte final da história, numa perspectiva paradigmática e, ao mesmo tempo, como realização das Escrituras, que figuram e profetizam a respeito de Jesus e a natureza redimensionadora e universalizadora da salvação.
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O objetivo principal da pesquisa encetada foi o de ressaltar a importância do discurso de Ellen White, uma importante líder religiosa do século XIX, nos Estados Unidos da América, para a formação de um estilo e prática de vida, que ainda hoje caracteriza os adventistas do sétimo dia no que se refere a saúde. Outro, não menos importante objetivo, foi o de comparar os principais conceitos de Ellen White sobre saúde e estilo de vida com algumas preocupações científicas e acadêmicas contemporâneas. Para isso, este trabalho mostra como a lista de oito remédios naturais propostos por White sumarizam o ideal de uma vida saudável ainda praticada por milhões de adventistas, 100 anos após a morte de sua Profetiza: ar puro, água, alimentação adequada, luz solar, exercícios físicos, repouso, abstinência, e confiança em Deus. Os conselhos de White foram contrastados com várias práticas culturais que relacionam religião e saúde, levando-nos à conclusão que a cultura adventista tem se mostrado como a mais adequada na salvaguarda da saúde. Isto porque White apresentou uma síntese de elementos da cultura judaica, cristã e ocidental. Nesse sentido, as suas orientações garantem-lhe um lugar privilegiado no movimento de reforma da saúde nos Estados Unidos que ocorreu naquele País na segunda metade do século XIX. Muitos de seus conselhos estão sendo atualmente colocados em prática por todos aqueles que se preocupam com a saúde, longevidade, e a adequação do estilo de vida com as regras inspiradas na natureza e numa espiritualidade sadia.
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Esta tese teve por objetivo saber como o corpo docente da Universidade Estadual de Mato Grosso do Sul (UEMS) percebe, entende e reage ante a incorporação e utilização das Tecnologias de Informação e Comunicação (TICs) nos cursos de graduação dessa Instituição, considerando os novos processos comunicacionais dialógicos que elas podem proporcionar na sociedade atual. Metodologicamente, a tese é composta por pesquisa bibliográfica, buscando fundamentar as áreas da Educação e Comunicação, assim como a Educomunicação; pesquisa documental para contextualização do lócus da pesquisa e de uma pesquisa exploratória a partir da aplicação de um questionário online a 165 docentes da UEMS, que responderam voluntariamente. Verificou-se que os professores utilizam as TICs cotidianamente nas atividades pessoais e, em menor escala, nos ambientes profissionais. Os desafios estão em se formar melhor esse docente e oferecer capacitação continuada para que utilizem de forma mais eficaz as TICs nas salas de aula. Destaca-se ainda que os avanços em tecnologia e os novos ecossistemas comunicacionais construíram novas e outras realidades, tornando a aprendizagem um fator não linear, exigindo-se revisão nos projetos pedagógicos na educação superior para que estes viabilizem diálogos propositivos entre a comunicação e a educação. A infraestrutura institucional para as TICs é outro entrave apontado, tanto na aquisição como na manutenção desses aparatos tecnológicos pela Universidade. Ao final, propõe-se realizar estudos e pesquisas que possam discutir alterações nos regimes contratuais de trabalho dos docentes, uma vez que, para atuar com as TICs de maneira apropriada, exige-se mais tempo e dedicação do docente.
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This dissertation analyzes the relationship between several mystic Sephardic texts called the Kabalah which include the three basic mystic books of Judaism: Sefer Yetsira, Sefer Bahir, and Sefer Zohar, and Argentine writer of Jewish descent, Marcos Ricardo Barnatan’s experimental work. The premise is that several mystic Sephardic texts have certain literary characteristics that make them fertile sources for the inspiration of writers like Barnatan. This thesis proves that Barnatan’s poetry and his first novel El Laberinto De Sion both use the most general concepts of the Kabalah in developing his literary and artistic creations. ^ This study is focuses on the concept that there exists a possibility of reading kabalistic texts not only in an exegetical way, but also in a poetic way. Barnatan’s literature is prone to this kind of reading of the texts. He creates a surprisingly expressive structure without ties to established models. This expressive structure is built on a vast amount of symbols, which results from this freedom. Barnatan adopts multiple symbols from cosmogenic theories and makes use of them, thus incorporating both the spirit and style of kabalistic texts into his own work. ^ Instead of addressing some of the main concerns of Kabbalistic study and its commentary, Barnatan avoids the concern for Law, the study of the Torah and its commentaries, while avoiding the use of the Hebrew language. For this reason Barnatan is too deviant to be considered an extension from the mainstream Kabbalistic commentary. Barnatan’s work is destined for a reader who cannot only understand his experimental methods, but who can also assemble a disjointed text while accepting a fundamental instability of space and time.^
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The conventional control schemes applied to Shunt Active Power Filters (SAPF) are Harmonic extractor-based strategies (HEBSs) because their effectiveness depends on how quickly and accurately the harmonic components of the nonlinear loads are identified. The SAPF can be also implemented without the use of the load harmonic extractors. In this case, the harmonic compensating term is obtained from the system active power balance. These systems can be considered as balanced-energy-based schemes (BEBSs) and their performance depends on how fast the system reaches the equilibrium state. In this case, the phase currents of the power grid are indirectly regulated by double sequence controllers with two degrees of freedom, where the internal model principle is employed to avoid reference frame transformation. Additionally the DSC controller presents robustness when the SAPF is operating under unbalanced conditions. Furthermore, SAPF implemented without harmonic detection schemes compensate simultaneously harmonic distortion and reactive power of the load. Their compensation capabilities, however, are limited by the SAPF power converter rating. Such a restriction can be minimized if the level of the reactive power correction is managed. In this work an estimation scheme for determining the filter currents is introduced to manage the compensation of reactive power. Experimental results are shown for demonstrating the performance of the proposed SAPF system.
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Electrical disturbances such as voltage sags, interruptions and voltage unbalances might cause serious problems for the end-user and for the companies of generation and transmission of energy. Few years ago, those companies have been using methods and equipments of protection to avoid the disturbances’ presence or to mitigate their effects on the power system. Disturbances generators are used to analyse the behavior of electrical and electronic equipments affected by disturbances. The analysis of those failures allows the development of appropriated protection equipments. In this paper, the development of a disturbances generator based on power converters is presented. The disturbance generator developed is able to generate some symmetrical disturbances, such as: voltage sags, voltage swells and harmonic distortion. The control strategy used in the disturbance generator is based on discrete and repetitive control. The steps of the design of the control and of the filter used for reducing harmonic in the output, are detailed in the text. Are presented the obtained results on computational simulations and the obtained results on laboratory tests.
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Generation systems, using renewable sources, are becoming increasingly popular due to the need for increased use of electricity. Currently, renewables sources have a role to cooperate with conventional generation, due to the system limitation in delivering the required power, the need for reduction of unwanted effects from sources that use fossil fuels (pollution) and the difficulty of building new transmission and/or distribution lines. This cooperation takes place through distributed generation. Therefore, this work proposes a control strategy for the interconnection of a PV (Photovoltaic) system generation distributed with a three-phase power grid through a connection filter the type LCL. The compensation of power quality at point of common coupling (PCC) is performed ensuring that the mains supply or consume only active power and that his currents have low distorcion. Unlike traditional techniques which require schemes for harmonic detection, the technique performs the harmonic compensation without the use of this schemes, controlling the output currents of the system in an indirect way. So that there is effective control of the DC (Direct Current) bus voltage is used the robust controller mode dual DSMPI (Dual-Sliding Mode-Proportional Integral), that behaves as a sliding mode controller SM-PI (Sliding Mode-Proportional Integral) during the transition and like a conventional PI (Proportional Integral) in the steady-state. For control of current is used to repetitive control strategy, which are used double sequence controllers (DSC) tuned to the fundamental component, the fifth and seventh harmonic. The output phase current are aligned with the phase angle of the utility voltage vector obtained from the use of a SRF-PLL (Synchronous Reference Frame Phase-Locked-Loop). In order to obtain the maximum power from the PV array is used a MPPT (Maximum Power Point Tracking) algorithm without the need for adding sensors. Experimental results are presented to demonstrate the effectiveness of the proposed control system.
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Surface defects on steel parts borne costs of smelting industries due to the need of rework. Sand molds are frequently used in foundry industries and largely responsible for providing surface defects. This study aims to optimize the levels of the molding process variables to minimize the occurrence of surface defects in steel castings in silica sand molds chemically linked by cold cure process. The methodology used the experimental design with split plot, being considered in the study the resin percentage factors in the mold formulation, addition of iron oxide, type of paint, the paint application method, amount of ink layers, use of hot air along the lines and waiting time of the mold before casting. They were analyzed as response variables erosion defects, sand inclusion, penetration, porosity and surface finish. Tensile strength tests were performed to evaluate the influence of factors on mechanical parameters and the microstructural parameters were carried out the analysis of X-ray diffraction, scanning electron microscopy (SEM) and thermal analysis (TG / DSC / dilatometry). The results elucidate that for the faulty erosion, the only significant factor with a 95% confidence level was the type of ink and the ink alumina-based superior results obtained. For the sand inclusion of defect, there were three significant factors, with best results obtained with alumina-based paint and spray applied using hot air in the mold before casting the metal. For the defect penetration, there were four significant factors, the best results being achieved with 0.8% of resin and addition of iron oxide in the molding formulation, the paint being applied by brush and standby time of 24 hours before leak. For the defect porosity with a 95% confidence level, no significant factors. For the defect surface finish, the best results were achieved with the 0.8% formulation of the resin in the mold and application of the paint brush. To obtain the levels of the factors that optimize all defects simultaneously, we performed a weighted average of the results of each type of fault, concluding that the best levels of the factors were: 0.8% resin and addition of iron oxide in the formulation of the template, application of two coats of paint applied with a brush or spray, using hot air in the mold before casting and 24 hours of waiting ready the mold before casting. These levels of the optimized factors were used in an experiment to confirm that ratified the results, helping to reduce rework and consequently reducing costs of cast steel parts.
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This Thesis comprises a theoretical study about the influence of the magnetocrystalline anisotropy on the static and dynamic magnetic properties of nanofilms: monolayers and trilayers coupled through the bilinear and biquadratic exchange fields, for situations in which the systems are grown in unusual [hkl] asymmetric directions. Using a theory based on a realistic phenomenological model for description of nanometric systems, we consider the total free magnetic energy including the Zeeman interaction, cubic and uniaxial anisotropies, demagnetizing and surface anysotropy energies, as well as the exchange terms. Numerical calculations are conducted by minimizing the total magnetic energy from the determination of equilibrium static configurations. We consider experimental parameters found in the literature to illustrate our results for Fe/Cr/Fe trilayer systems. In particular, a total of six different magnetic scenarios are analyzed for three regimens of exchange fields and the [211] and [321] asymmetric growth directions. After numerically minimize the total energy, we use the equilibrium configurations to calculate magnetization and magnetoresistance curves with the respective magnetic phases and corresponding critical fields. These results are also used to establish the boundary for occurrence of saturated states. Within the context of the spin waves, we solve the equation of motion for these systems in order to find the respective associated dispersion relations. The results show similar magnetization and magnetoresistance curves for both [211] and [321] growth scenarios, including an equivalent magnetic transition behavior. However, the combination of those peculiar symmetries and influence of the exchange energies results in attractive properties, including the generation of magnetic states as a function of the asymmetric degree imposed in the [hkl] growth orientations. There is also an increasing incompatibility between the values of saturation fields of magnetization and magnetoresistance for the cases in which a magnetic field acts along intermediate cubic anisotropic axes, particularly in the situations where the bilinear and biquadratic exchange fields are comparable. The dispersion relations and static results are consistent, the corresponding magnetic states are also present in both acoustic and optical modes. Furthermore, Goldstone excitations are also observed for that particular cases of a magnetic field acting in the intermediate axes, an effect related to transitions of second order and to the spontaneous symmetry breaking imposed by the combination of the biquadratic energy with the cubic and uniaxial anisotropies.