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

Sobre a dinâmica de rotação de um planeta através de um sistema médio

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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.

Estudo prospectivo sobre a utilização de próteses totais implantossuportadas em pacientes edêntulos

The objective of this study was to evaluate the impact of replacing conventional mandibular complete dentures by complete fixed dentures on the oral health-related quality of life and kinesiographic parameters of maxillary edentulous patients. Material and Methods: edentulous patients (n = 16) received one set of new complete dentures and after the intraoral adjustments and adaptation period (30 days), the Brazilian version of Oral Health Impact Profile for assessing edentulous subjects (Ohip-Edent) was used to evaluate the oral health-related quality of life (OHQOL) of the participants. Additionally, the kinesiograph instrument K6-I (Myotronics Research Inc., Seattle, WA) was used to record opening and closure range of movement, mandibular movement, and the pattern of maxillary complete denture movement on chewing. Afterwards, the patients had their mandibular complete dentures replaced by a complete fixed denture and the same evaluation protocol was performed after 3 and 6 months. Ohip-Edent responses were analyzed using Wilcoxon's test for repeated measures (α = .05) and Kinesiographic data using the Student´s t test (α = .05). Results: The Ohip-Edent showed an improvement of general oral health-related quality of life after 3 and 6 months of the treatment with complete fixed dentures. Kinesiographic recordings revealed a significant increase on maximum mandibular movements of vertical opening and no differences for the movement of the maxillary complete denture on chewing after treatment with complete fixed dentures was observed. Conclusion: the installation of complete fixed dentures improved the OHQOL and changed mandibular movements, with increases in vertical amplitude of maximal opening.

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.

Analysis of acoustic frequency and wave amplitude generated by the Oscillatory Thoracic Thixotropic Device (Diottix(r)) in human chest

Diottix(r) was calibrated at 25 Hz to achieve the frequency indicated in literature as being effective to mobilize the airways secretions. However, the amplitude and frequency of the waves generated by the equipment in different regions of the chest still need to be investigated. The objective of this study was to analyze the frequency and amplitude of waves generated by Diottix(r) in chests of healthy subjects. Diottix(r) was used in the anterior and posterior regions of the chest. The mechanical waves were captured using stethoscopes connected to electret microphones, which were connected to a digital oscilloscope. Frequency and amplitude data were recorded by the stethoscope, positioned in six points in the anterior region and six in the posterior region of the chest, following the positions commonly used in pulmonary auscultation. Signals were recorded and transferred to a computer with software for their analysis. The frequency of waves did not present a significant change (from 24.9 to 26.4 Hz). The wave amplitude in the anterior versus the posterior region in each area of the lung, the upper, middle and lower, had differences. Diottix(r) produces frequencies in the chest according to the calibrated; thus, it can be a complementary resource to bronchial hygiene maneuvers. The amplitudes of waves seem to be affected by other structures like bone parts and heart.

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)