Análise da estabilidade do movimento rotacional de satélites artificiais com quatérnions e sob a influência de torques externos

The aim of this work is to analyze the stability of the rotational motion’s artificial satellite using the Routh Hurwitz Algorithm (CRH) and the quaternions to describe the satellite’s attitude. This algorithm allows the investigation of the stability of the motion using the coefficients of the characteristic equation associated with the equation of the rotational motion in the linear form. The equations of the rotational motion are given by the four cinematic equations for the quaternion and the three equations of Euler for the spin velocity’s components. In the Euler equations are included the components of the gravity gradient torque (TGG) and the solar radiation torque (TRS). The TGG is generated by the difference of the Earth gravity force direction and intensity actuating on each satellite mass element and it depends on the mass distribution and the form of the satellite. The TRS is created by changing of the linear momentum, which happens due to the interactions of solar photons with the satellite surface. The equilibrium points are gotten by the equation of rotational motion and the CRH is applied in the linear form of these equations. Simulations are developed for small and medium satellites, but the gotten equilibrium points are not stable by CRH. However, when some of the eigenvalues of the characteristic equation are analyzed, it is found some equilibrium points which can be pointed out as stables for an interval of the time, due to small magnitude of the real part of these eigenvalue

Os movimentos nas redes e em redes: das manifestações internacionais ao Movimento Prudente

Neste trabalho apresentamos uma leitura sobre o processo de articulação dos movimentos em redes e do uso das redes sociais pelos movimentos socioespaciais que mais se destacaram no mundo nos últimos cinco anos. Tendo suas bases nos marcos conceituais de movimentos socioespacial, movimentos socioterritorial, Rede e Redes Sociais, remontamos ao processo de formação da Via Campesina e das manifestações na Primavera Árabe, M12M, M15M, Occupy Wall Street, Movimento Passe Livre e o Movimento Prudente na escala local. Analisar e comparar estes movimentos e suas manifestações nos permitiu identificar a conexão entre a difusão de informações nas redes sociais e a materialização das manifestações no espaço público. Destaca-se que o uso destas tem acarretado em uma nova dinâmica não só na difusão de manifestação, mas também na realização de trabalho de base, caracterizando-se como um importante espaço de socialização política da atualidade

Os sem terrinha no Movimento dos Trabalhadores Rurais sem Terra (MST)

Pós-graduação em Educação - FFC

Corpo: forma, movimento e equilíbrio : um olhar interdisciplinar sobre o corpo, a mente e o comportamento humano

For centuries have studied the man in a segmented manner, which today, even with the emergence of new forms of research, holistic, we see that the influence of centuries of construction of scientific knowledge has taken root in such a way that even now with new understandings about matter and its structure pointing to systemic relations, studies are still largely dichotomized by dividing body, mind and environment. This paper is a literature review on several sources of knowledge, seeking an interdisciplinary way in physics, chemistry, biology, psychology and physical education, relate the body, mind and their interactions with the environment, building a more current concept of body. The studies showed that the physical, cognitive, emotional, social and environmental aspects involve an interaction continues between human been with the world, which changes shapes, balances and transactions, and thus human behavior. So when we speak of the body should relate all this that makes us conscious organisms in constant internal and external dynamic with the universe

Movimento estudantil: a juventude brasileira em 1968 e em 2008 a partir das ocupações da Universidade de Brasília

The hypothesis guiding this work is that the student movement of 1968, inserted into a scene of great social movements contrary to the present political system, showed great expression in its demonstrations even considering the fact that in a dictatorship there was significant intolerance of divergent views to the military regime, which, of the student movement of 2008, inserted into a scene of mobilizations contrary to the educational system and the corruption that permeated it. The aim of this study is to investigate the myths that permeate the image of students, through a comparison between the Brazilian student movement, highlighting the students at the University of Brasilia from 1968 to 2008, with the specific objective of analyzing if the student movement lost strength of mobilizing in support of their fight flags. The question may be answered from the youth of the 1960s characterized by revolutionary, in which the possible advances and retreats performed in 40 years of history of the student movement, which seems to have lost its revolutionary feature

Dossiê campo de públicas no Brasil: definição, movimento constitutivo e desafios atuais

This article introduces the Public’s Field, which brings together teachers and students of undergraduate courses in Public Administration, Public Management, Public Policy, Public Management and Social Policy in Brazil, around the republican and democratic ethos as values, and multidisciplinary approach as proposed construction of knowledge. Based on a literature review, documental analysis, and especially in participant observation of the authors as actors in the construction Field, the article is per se a dossier. It starts with the definition of the Field and describes - in detail - their constituent movement in the last 12 years, culminating in the approval of the National Curriculum Guidelines of Public Administration in 2013. The text shows the achievement and growth of Field in the country before the growing supply of undergraduate courses, stimulated by upgrading and expansion of the public sector. Finally, we list some challenges, concerning the process of institutionalization and identity.

Campo de públicas no Brasil: definição, movimento constitutivo e desafios atuais

This article introduces the Public’s Field, which brings together teachers and students of undergraduate courses in Public Administration, Public Management, Public Policy, Public Management and Social Policy in Brazil, around the republican and democratic ethos as values, and multidisciplinary approach as proposed construction of knowledge. Based on a literature review, documental analysis, and especially in participant observation of the authors as actors in the construction Field, the article is per se a dossier. It starts with the definition of the Field and describes - in detail - their constituent movement in the last 12 years, culminating in the approval of the National Curriculum Guidelines of Public Administration in 2013. The text shows the achievement and growth of Field in the country before the growing supply of undergraduate courses, stimulated by upgrading and expansion of the public sector. Finally, we list some challenges, concerning the process of institutionalization and identity.

A interferência da música na ginástica rítmica: estado de ânimo e qualidade de movimento

Pós-graduação em Ciências da Motricidade - IBRC

Gestão de imagens em movimento de matérias jornalísticas em banco de dados na TV Digital

Pós-graduação em Televisão Digital: Informação e Conhecimento - FAAC

A roda em movimento e os movimentos da roda: refletindo sobre experiências

This article aims to narrate and analyze possibilities on aspects of the work developed by the group that composes the Mental Health and Public Health Improvement, using the Wheel Method, created by Gastão W. Campos, in different and diverse articulations and work organization spaces in psychosocial care field, such as Mental Health Forum, work groups related to Regional Collegiate Management (CGRs), with municipal teams to organize mental health network and with newcomer residents to a therapeutic residence It is from these different experiences that it is intended to reflect, discuss and promote a dialogue on the possibilities of the Wheel Method.

O movimento missionário e educacional protestante na segunda metade do século XIX: para cada igreja uma escola

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

Cálculo diferencial e integral no movimento dos planetas

Pós-graduação em Matemática em Rede Nacional - IBILCE

Movimento jogo e brincadeira na educação infantil: as expectativas das famílias

Childhood is a theme that has attracted many controversies and discussions, and winning approaches to the increasingly large over time: biological, psychological, educational, welfare and, more recently, sociological. It is known that the movement, play and game activities are important recurrent and integral development of children, and should be present prominently in early childhood institutions. Based on these assumptions is that this study aimed to analyze the didactic-pedagogical principles postulated by the law, official guidelines didactic teaching and literature, with regard to meeting the needs of children in early childhood education. Unveiling the expectations of the families responsible for children in relation to early childhood education, especially with regard to movement, and play games and compare to what extent these expectations turn away or close to the guidelines on teaching and pedagogical movement, games and postulated in official documents, legislation and literature. To this end, we carried out literature search, selection and analysis of texts relevant to the understanding of the theme. Fieldwork was conducted in a Municipal School of Early Childhood Education Full-time (Emei) of Bauru/SP, and involved the analysis of the Political-Pedagogical Project of the institution, semi-structured interviews with five teachers and five children in the family responsible for Garden II (ages 5 to 6 years). Data were analyzed using thematic content analysis of Bardin and triangulated by the confrontation of literature/legislation, the Pedagogical Political Project of the institution and the expectations of families/guardians. We also realize that the Pedagogical Political Project of EMEI is in routine activities with the children, movement, and play the game are covered and are worked. According to teachers interviewed they assist in learning other areas of work (Oral and Written Language, Nature and Society, etc.) learning of moral...

Movimento dos olhos e controle postural

The control of stances such as the upright stance seems not to have a purpose in itself; this control could facilitate the execution of other simultaneous tasks, the so-called suprapostural tasks. The goal of this study was to determine the effects of saccadic eye movements on the control of posture. Twelve adult participants had their body oscillations analyzed while standing upright, for 70 s, in the postural conditions of feet apart and feet together, performing fixation in the central target or horizontal saccadic movements, in the conditions slow (0,5 Hz) and fast (1,1 Hz). The results showed that saccadic movements, independently of their frequency, strongly reduced trunk and head oscillations in the anterior-posterior (AP) axis. In this axis, there was an effect of feet position only in head oscillation. In the medio-lateral (ML) axis, the results showed a strong effect of feet position with body oscillation decreased in the condition of feet apart. The effect of the visual task in the ML axis occurred only for trunk oscillation, not reaching significance level in the pairewise comparisons. In the AP axis, the data corroborate a facilitatory explanation of the control of posture: the reduction in body oscillation limited the variations of the stimulus image projected on the retina, facilitating the execution of saccadic movements as compared to fixation. In the ML axis, the effect of reducing the basis of support was more evident than the effect of saccadic movements, suggesting that the available resources were used primarily for the postural task in detriment of the visual task. Additionally, aspects like attentional focus and sensory information pick up are discussed as mechanisms involved in this task