O sistema de cotas para negros na Universidade Federal do Maranhão: uma política de ação afirmativa para a população afromaranhense

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Mulheres assentadas e saúde: uma análise a partir do Programa de Saúde da Família (PSF)

Pós-graduação em Serviço Social - FCHS

Dinâmica de rotação de exoplanetas tipo terrestre com perturbação de terceiro corpo

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 Since the technique of disturbed surface sections is no longer applicable, we quantitatively evaluate the evolution of the characteristic angles of rotation (e.g. physical libration) by studying the evolution of individual orbits in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

Determinação da freqüência natural de eixos utilizando o software excel

This work aims to determine the first natural frequency of rotation shaft by using a basic software, Excel, and to compare it to the values obtained in laboratory. When an axle is submitted to a rotation, depending on the rotational frequency used, the axle can enter a state of resonance, in which the amplitude of vibration becomes rather high. The frequencies in which the resonance is observed depends on several parameters of the axle, including the number of concentrated masses associated to the axle. Thus, to obtain a computer program of easy use and access, which can preview the frequency of resonance of an axle in rotation with ‘n’ numbers of concentrated masses it has been studied how the frequency varies with each of these parameters. The computer program and the analyses have been made using the Rayleigh Method, which allowed the transformation of a continuous system to discrete through the theory of finite elements, which has proved that, the bigger the number of divisions of the shaft taken into consideration in the calculus of the natural frequency, the more this value gets close to the real value. The results obtained have been considered satisfactory once these have gotten close to the theoretical results expected

A indústria criativa de games no Brasil

The games are a worldwide fever, since 80's is becoming more popular and featured in the media, in the culture and economy. The sector fits in creative economy, a sector of economy that is growing gaining prominence for being a driver for economic, cultural and environmental development. The producing process, competition and logic of cultural games industry differ from traditional economy. The article seeks to show what is necessary to the game industry be able to establish and remain on the market, and what is the obstacles that this industry will face in Brazil, a potential creative economy country

Políticas públicas: a construção de imagens e sentidos para o envelhecimento humano

The present study aims to analyze the Brazilian public policies made for the elderly citizen population and to examine their resonance in the production of senses and images on the process of aging. For this, we draw cartographies that could find producing figures of sense about the aging, passing through some politics formulated for to this age group, since the decade of 1920 until the creation of the “Estatuto do Idoso”, in 2003. We checked that the appearance of public policies for the old age happened as an answer to the challenge of managing and controlling the aging process courses in front of the increase of the elderly citizen population. The “Estatuto do Idoso” is an important landmark of the management advance of the State upon the oldness and of the substitution of an philanthropic-assistance model for a preventive model which is based on the promotion of a healthy and productive longevity. With that, next to the figure of the sick and inactive elderly , it begins to appear figurations of a healthy and powerful aging, crossed by images of vitality and rejuvenation.

Quantificação eletroquímica de analitos de interesse ambiental e biológico, empregando novos materiais preparados a partir de silsesquioxanos funcionalizados

Pós-graduação em Ciência dos Materiais - FEIS

Aprendizagem significativa do conceito de ressonância

In this research work we verified the interaction between teacher and students through the use of reading an alternative text, the use of an experimental activity demonstration and presentation of videos involving the concept of resonance in a room on the 3rd year of teaching medium, led to meaningful learning of that concept. The instruments for the creation of data were based on audio and video records, taken during the lecture and the written evaluations performed by the students two weeks later. The results showed that this interaction, mediated by the use of these resources, led to meaningful learning of the concept of resonance. It was also possible to observe the students' motivation to participate actively in class.

O sofrimento psíquico contemporâneo no imaginário coletivo de estudantes de psicologia

Profound socio‑cultural transformations that the world has undergone have been followed by new subjective configurations and manifestations of psychic suffering, whose impact and resonance in the psychology clinic, demand especial understanding and management. The aim of this study was to investigate the collective imaginary of Psychology students about contemporary psychic suffering. In the light of the psychoanalytic method, this research utilized the procedure of drawings‑stories with theme in group interview. The set of productions of the drawings‑stories, based on the psychoanalytic narratives written after each group interview, was interpretatively analyzed and allowed the apprehension of the following fields of affective‑emotional meaning: "Loneliness", “Essays on suffering", "Agony of non‑being", "Human contact with suffering", "Avoidance: the great defense", "Non lived lives", "Human despair" and "Multifacetated suffering". The set of analyses allowed the understanding of a collective imaginary in which suffering, that occurs nowadays, consists mainly of feelings of loneliness, for‑ saking, uselessness, spuriousness and existential void.

Distorções harmônicas produzidas por inversores de geração distribuída fotovoltaica em condição de ressonância paralela

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Confluências entre mito, literatura e direito em Édipo Rei, de Sófocles

Pós-graduação em Letras - IBILCE