169 resultados para deduction
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Pós-graduação em Matemática em Rede Nacional - IBILCE
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Pós-graduação em Engenharia Civil - FEIS
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Pós-graduação em Geociências e Meio Ambiente - IGCE
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Pós-graduação em Engenharia Mecânica - FEB
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In this work we study some topics of Celestial Mechanics, namely the problem of rigid body rotation and “spin-orbit” resonances. Emphasis is placed on the problem formulation and applications to some exoplanets with physical parameters (e.g. mass and radius) compatible with a terrestrial type constitution (e.g. rock) belonging to multiple planetary systems. The approach is both analytical and numerical. The analytical part consists of: i) the deduction of the equation of motion for the rotation problem of a spherical body with no symmetry, disturbed by a central body; ii) modeling the same problem by including a third-body in the planet-star system; iii) formulation of the concept of “spin-orbit” resonance in which the orbital period of the planet is an integer multiple of the rotation’s period. Topics of dynamical systems (e.g. equilibrium points, chaos, surface sections, etc.) will be included at this stage. In the numerical part simulations are performed with numerical models developed in the previous analytical section. As a first step we consider the orbit of the planet not perturbed by a third-body in the star-planet system. In this case the eccentricity and orbital semi-major axis of the planet are constants. Here the technique of surface sections, widely used in dynamical systems are applied. Next, we consider the action of a third body, developing a more realistic model for planetary rotation. The results in both cases are compared. Since the technique of disturbed surface sections is no longer applicable, we quantitatively evaluate the evolution of the characteristic angles of rotation (e.g. physical libration) by studying the evolution of individual orbits in the dynamically important regions of phase space, the latter obtained in the undisturbed case
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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This work had as objective the development of a prototype of educational content, as an experimental process, making use of resources from Interactive Digital TV. The characteristics of interactive digital terrestrial television are presented, in the form of a media mode capable of performing as a complementary source to education. The methodology used is composed of four phases: deduction, analysis, induction and synthesis. Its conception takes as issue the expressed need stated by UNESCO to use ICT (Information and Communications Technology) towards education, as well as the possibility of applying digital television in an educational process. The content is structured in the form of a quiz, a type of question-answer game as an informal way of education for high school students. The prototype developed in this work is presented as a structural script and map, taking into account the necessary activities and routines to put it into operation in the tested environments, eclipse, virtual set-top-box and Developer Box. The practice of prototyping was carried out in NCLua, based on middleware Ginga. As a result, we concluded that Ginga offers enough support to carry out the task, providing characteristics of interaction to publish the proposed content, at the moment of the actual practice.
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Pós-graduação em Educação Matemática - IGCE
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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What is the place of theory in the field of communication? From this epistemological inquiry, this paper examines the tensions and connections between theory and practice in the discipline of Communication. It discusses the segmentation of Undergraduate courses of Communication in Journalism, Public Relations, Advertising, and Radio and the emphasis on technical and vocational training that occurs in the communicator’s education. It discusses some components of the new curriculum guidelines of the course of Journalism and articulates this segmentation with the Postgraduate area. The paper also discusses the deduction and induction movements in the construction of the area’s knowledge and advocates a dialectical examination of the relationship between science and experience, theory and practice, leading to a praxis of communication.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Landscape is the result of interaction between tectonic, weathering and pedogenetic processes, so it is necessary to understand the morphogenesis and relate it to the landforms and landscape. Therefore, this project comprises a geomorphological characterization of some areas associated with the fault zones of Taubaté Basin, at the surroundings of the cities from São José dos Campos to Taubaté SP, emphasizing the Quaternary landscape evolution, where the normal faults played an important role in controling and they were originated, mostly, from the reactivation of Precambrian fault zones by tectonic action. The rift valley scenario is highlighted in the region, identifying the sharp relief from the basin boundary, featuring both Serra do Mar and Serra da Mantiqueira, and a central depressed area where the Taubaté Basin is located. Deforming or modifying basin features are identified, promoting the rearrangement and conditioning of the drainage network and relief, which indicates the presence of morphostructures, conducting to the deduction of a late tectonic process