A ESTRUTURA DOS CLUBES SÓCIO-RECREATIVOS NA AMÉRICA DO SUL: PRIMEIROS INDICATIVOS

Artigo Rede CEDES - UFPR publicado no 1º ENCONTRO DA ALESDEA questão motivadora para este estudo surgiu na expectativa de responder se os clubes sócio-recreativos da América do Sul apresentam características estruturais semelhantes às dos clubes no Brasil. Esse levantamento permitiu identificar que forma e conteúdo de diversas instituições correspondem à estrutura dos clubes brasileiros. Os indicativos levantados no presente trabalho motivam novos questionamentos para pesquisas futuras, como: o desenvolvimento do desporto a partir das práticas realizadas no interior dos clubes sócio-recreativos influencia a constituição da estrutura esportiva do país?Rede CEDE

The curse of technological race: the red queen effect

Economic prosperity is tied to scientific development, i.e., there is a strong correlation between science, technology and the wealth of nations. We collected data from scientific and technological production of 183 countries of the last thirty years (1974 to 2003) and applied a super-paramagnetic clustering technique on them, finding nations divided in three regimes, distinguished by the interactions between the agents of their National Systems of Innovation (NSI). The identification of these groups allows us to define the dynamical behavior of the thresholds, that grow exponentially and whose growth rate we have calculated. We show that for the period 1974-2003 the threshold between the immature and the developed NSIs increases by an annual rate of 6.6% (per capita). We identify clearly a "Red Queen Effect". Finally we show that the transitions between the regimes are discontinuous, represented by a structural breakthrough. Therefore, the prerequisite to move from regime I to regime II, and then to regime III are structural changes within NSIs.national systems of innovation; super-paramagnetic clustering technique; moving thresholds

Matrices of science and technology interactions: implications for development

Scientific and other non-patent references (NPRs) in patents are important tools to analyze interactions between science and technology. This paper organizes a database with 514,894 USPTO patents granted globally in 1974, 1982, 1990, 1998 and 2006. There are 165,762 patents with at least one reference to science and engineering (S&E) literature, and there are 1,375,503 references. In 2006 there are 83 countries with USPTO patent citing S&E literature. Through a lexical analysis 71.1% of this S&E literature is classified by S&E fields. These data underscore the elaboration of global and national tri-dimensional matrices (by OST technological domains, ISI science and engineering fields and number of references). Descriptive statistics investigate how science and technology linkages differ over time across countries and across levels of development. This paper highlights how the existence (or not) of a pattern of structured growth differentiates mature and immature systems of innovation.science and technology linkages, stages of economic development, systems of innovation

Modeling economic growth fuelled by science and technology

This paper suggests a simulation model to investigate how science and technology fuel economic growth. This model is built upon a synthesis of technological capabilities represented by national innovation systems. This paper gathers data of papers and patents for 183 countries between 1999 and 2003, GDP and population for 2003. These data show a strong correlation between science, technology and income. Three simulation exercises are performed. Feeding our algorithm with data for population, patents and scientific papers, we obtain the world income distribution (R=0.99). These results support our conjecture on the role of science and technology as a source of the wealth of nations.simulation models; systems of innovation; economic growth

A new gravitational N-body simulation algorithm for investigation of cosmological chaotic advection

Recently alternative approaches in cosmology seeks to explain the nature of dark matter as a direct result of the non-linear spacetime curvature due to different types of deformation potentials. In this context, a key test for this hypothesis is to examine the effects of deformation on the evolution of large scales structures. An important requirement for the fine analysis of this pure gravitational signature (without dark matter elements) is to characterize the position of a galaxy during its trajectory to the gravitational collapse of super clusters at low redshifts. In this context, each element in an gravitational N-body simulation behaves as a tracer of collapse governed by the process known as chaotic advection (or lagrangian turbulence). In order to develop a detailed study of this new approach we develop the COsmic LAgrangian TUrbulence Simulator (COLATUS) to perform gravitational N-body simulations based on Compute Unified Device Architecture (CUDA) for graphics processing units (GPUs). In this paper we report the first robust results obtained from COLATUS.Comment: Proceedings of Sixth International School on Field Theory and Gravitation-2012 - by American Institute of Physic

On the structure of the floating zone in melting

Floating zone melting is used in crystal growth and purification of high melting materials. The use of a reduced gravity environment will remove the constraint imposed on the length of the zone by the hydrostatic pressure. The equilibrium of the fioatmg zone may involve, (1)Hydrostatic forces, when the zone rotates as a whole. (2)Convective driving forces, when the zone is stationary but fluid property gradients appear.(3) Hydrodynamic forces, when some parts of the zone are set into motion with respect to others. The last effects are considered in this paper. The flow pattern of a floating zone held between two discs in relative motion is complicated, and thence the solution of the problem is difficult even assuming a constant property-newtonian liquid Nevertheless, when a small parameter appears m the problem, the complete flow field can be split into zones where simple solutions are found. To illustrate this approach, the spin up from rest of an initially cylindrical floating zone is considered with detail. Here the small parameter is the time elapsed from the impulsive starting of motion. Since the problem which has been considered, as well as some others which can be tackled by use of similar methods, concern the viscous layer close to either plate, they can be simulated experimentally in the ground laboratory with short floating zones. Procedures to produce these zones are indicated

A PRÁXIS ANTITRUSTE NO BRASIL: UMA ANÁLISE DO CADE NO PERÍODO 1994-2004

The antitrust policy is built through antitrust agency's decisions that are, in Brazil, pronounced by CADE. To appraise CADE's decisions, thus, is to appraise the antitrust policy in Brazil. This implies that is necessary to know if such decisions are consistent with the antitrust theory. The purpose of this paper is to verify the theoretical consistency of CADE's decisions. To get there, 330 Counsel's votes are analyzed on the legality lifetime of 8.884/94 Law or between 1994 and 2004. The paper's conclusion is that there is a general fragility in antitrust theory's application by CADE. For example, the demand substituibility test was made in only 14% of that cases in which the consume substituibility was analyzed; and the net economic efficiency computation was made in only 5% of that cases that the economic efficiency was argued.

O processo de formação profissional nos semi-internatos : a percepção do acadêmico de enfermagem da Universidade Federal do Pará, Brasil

Avaliou-se o processo de formação profissional nos semi-internatos do Curso de Graduação em Enfermagem da Universidade Federal do Pará, a partir da percepção dos discentes. Utilizou-se uma abordagem quali-quantitativa por meio de estudo de caso, com análise documental Projeto Pedagógico - PP e das ementas do semi-internato e construção de um instrumento atitudinal do Tipo Likert. Concluiu-se que as competências de atenção a saúde e comunicação, o trabalho docente, a relação docente/discente e a articulação teoria-prática têm uma percepção positiva entre os discentes. Contudo observa-se uma percepção mais crítica quanto à oferta de cenários de prática em diferentes níveis de atenção, aspecto de grande relevância para a formação profissional em saúde

Analog modulation of mossy fiber transmission is uncoupled from changes in presynaptic Ca2+

Subthreshold somatic depolarization has been shown recently to modulate presynaptic neurotransmitter release in cortical neurons. To understand the mechanisms underlying this mode of signaling in the axons of dentate granule cells (hippocampal mossy fibers), we have combined two- photon Ca2+ imaging with dual-patch recordings from somata and giant boutons forming synapses on CA3 pyramidal cells. In intact axons, subthreshold depolarization propagates both orthodromically and antidromically, with an estimated length constant of 200-600 mu m depending on the signal waveform. Surprisingly, presynaptic depolarization sufficient to enhance glutamate release at mossy fiber-CA3 pyramidal cell synapses has no detectable effect on either basal Ca2+-dependent fluorescence or action-potential-evoked fluorescence transients in giant boutons. We further estimate that neurotransmitter release varies with presynaptic Ca2+ entry with a 2.5-power relationship and that depolarization-induced synaptic facilitation remains intact in the presence of high-affinity presynaptic Ca2+ buffers or after blockade of local Ca2+ stores. We conclude that depolarization-dependent modulation of transmission at these boutons does not rely on changes in presynaptic Ca2+