Análise do binômio saúde: adoecimento de professores e alunos

Pós-graduação em Educação Escolar - FCLAR

As possibilidades da Revolução em Ellul

The author, based on the work Change of Revolution, analyzes what Jacques Ellul understand as structural and existential in a Marxist revolution. Analyzing the main experiences of this type, the French thinker finds its by technification of the society. However, it also notes the validity of Marx’s objectives of overcoming the proletariat and the alienation. Thus, a revolutionary and libertarian socialism would be possible under certain conditions. On an existential level, Ellul questions in each one of us the permanence of efficiency values, of power and the pursuit of money as the main purpose of life, offering an authentic and radical transformation before the seizure of power. Thus, the author develops the Ellulian concept of God’s revelation in Jesus Christ as a lever and fulcrum of Revolution.

Estado, trabalho e capital em István Mészáros

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

A agência humana do professor de inglês no desenvolvimento de saber glocal na perspectiva sócio-histórica e dialética

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Transição comunista e ditadura do proletariado na Revolução Cubana de 1959

Pós-graduação em Ciências Sociais - FFC

A importância da negatividade hegeliana para o pensamento dialético de Herbert Marcuse: o legado da filosofia da história

Pós-graduação em Filosofia - FFC

Narrow-band search of continuous gravitational-wave signals from Crab and Vela pulsars in Virgo VSR4 data

In this paper we present the results of a coherent narrow-band search for continuous gravitational-wave signals from the Crab and Vela pulsars conducted on Virgo VSR4 data. In order to take into account a possible small mismatch between the gravitational-wave frequency and two times the star rotation frequency, inferred from measurement of the electromagnetic pulse rate, a range of 0.02 Hz around two times the star rotational frequency has been searched for both the pulsars. No evidence for a signal has been found and 95% confidence level upper limits have been computed assuming both that polarization parameters are completely unknown and that they are known with some uncertainty, as derived from x-ray observations of the pulsar wind torii. For Vela the upper limits are comparable to the spin-down limit, computed assuming that all the observed spin-down is due to the emission of gravitational waves. For Crab the upper limits are about a factor of 2 below the spin-down limit, and represent a significant improvement with respect to past analysis. This is the first time the spin-down limit is significantly overcome in a narrow-band search.

Directed search for gravitational waves from Scorpius X-1 with initial LIGO data

We present results of a search for continuously emitted gravitational radiation, directed at the brightest low-mass x-ray binary, Scorpius X-1. Our semicoherent analysis covers 10 days of LIGO S5 data ranging from 50-550 Hz, and performs an incoherent sum of coherent F-statistic power distributed amongst frequency-modulated orbital sidebands. All candidates not removed at the veto stage were found to be consistent with noise at a 1% false alarm rate. We present Bayesian 95% confidence upper limits on gravitational-wave strain amplitude using two different prior distributions: a standard one, with no a priori assumptions about the orientation of Scorpius X-1; and an angle-restricted one, using a prior derived from electromagnetic observations. Median strain upper limits of 1.3 x 10(-24) and 8 x 10(-25) are reported at 150 Hz for the standard and angle-restricted searches respectively. This proof-of-principle analysis was limited to a short observation time by unknown effects of accretion on the intrinsic spin frequency of the neutron star, but improves upon previous upper limits by factors of similar to 1.4 for the standard, and 2.3 for the angle-restricted search at the sensitive region of the detector.

Advanced LIGO

The Advanced LIGO gravitational wave detectors are second-generation instruments designed and built for the two LIGO observatories in Hanford, WA and Livingston, LA, USA. The two instruments are identical in design, and are specialized versions of a Michelson interferometer with 4 km long arms. As in Initial LIGO, Fabry-Perot cavities are used in the arms to increase the interaction time with a gravitational wave, and power recycling is used to increase the effective laser power. Signal recycling has been added in Advanced LIGO to improve the frequency response. In the most sensitive frequency region around 100 Hz, the design strain sensitivity is a factor of 10 better than Initial LIGO. In addition, the low frequency end of the sensitivity band is moved from 40 Hz down to 10 Hz. All interferometer components have been replaced with improved technologies to achieve this sensitivity gain. Much better seismic isolation and test mass suspensions are responsible for the gains at lower frequencies. Higher laser power, larger test masses and improved mirror coatings lead to the improved sensitivity at mid and high frequencies. Data collecting runs with these new instruments are planned to begin in mid-2015.

Desenvolvimento do sistema do capital e teorias de transição em Trotski e Mészáros

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Globalização, Estado e crise estrutural do capital

Pós-graduação em Economia - FCLAR

Fazer ciência, fazer história: a sociologia da mudança social de Florestan Fernandes e de Costa Pinto

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Educação e sustentabilidade: relações possíveis

Considering the defi nition of Environmental Education as a human development process that seeks the transformation of the relationship between society and environment, this paper – collectively written by the members of the research group – discusses the theoretical framework of our studies, understanding them not as ’straitjackets’ that force us to repeat and reproduce predetermined analysis, but as a pathway, a method to interpret reality, a method to look for the essence of the studied phenomena, the real world. The theoretical framework we present helps us, therefore, to overcome the fragmented feature of the construction of knowledge proposed by methodologies in whose epistemological axis are located empiricism, positivism and idealism, as well as to fi nd out the laws of the phenomena whose study concerns us. It also helps us to capture in detail the details of the problems, to analyze their evolution and track the connections between phenomena that surround them. That is the Historical, Dialectical and Materialistic method formulated by Marx and those who came after him, also known as the philosophy of praxis. Based on this reference, we discuss here the relationship between environmental education and sustainability, bringing the concepts of sustainable development and sustainability into the debate, concluding that for the critical perspective explained here, environmental education for sustainability is a process that joins theory and practice for the transformation of the relationships between societies and the environment. This is the critical dimension of environmental education as we comprehend it.

A dinâmica das classes sociais no pensamento de Florestan Fernandes

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

O Serviço Social contracenando com a arte para desvelar a realidade

Pós-graduação em Serviço Social - FCHS