Redes de apoio às famílias de dependentes de álcool e outras drogas: uma interface com as políticas públicas intersetoriais

Pós-graduação em Serviço Social - FCHS

Tecnologia da informação, discurso e poder: análise de domínio a partir do conceito de exclusão digital na perspectiva da teoria centro-periferia

Pós-graduação em Ciência da Informação - FFC

O papel das redes de transformação no processo de inovação: estudos de caso sobre a descoberta e a comercialização da inovação

Innovation is widely recognized as important. In addition, in this context, innovation networks have gained importance in academic studies, since an organization alone, does not always have access to all necessary resources. Gobbo Junior and Olsson (2010) proposed a model of network innovation whereby the transformation networks would be the linking structures between exploration and exploitation networks. In this context, this paper presents two case studies of innovation networks, aiming to increase the understanding on transformation networks. The objective was to understand how they interconnect exploration and exploitation networks; the main actors present in this interface; and to evaluate whether these actors can act as agents, to accelerate the innovation process. It was possible to verify how the transformation networks interconnect exploration and exploitation, and identify the practices and their main actors.

Emprego de redes complexas para modelar e analisar a disseminação de microrganismos da familia enterobacteriaceae em pacientes mantidos em unidades de terapia intensiva

Nowadays the studies of different methodologies to interfere in the growing and spread of serious infections and systemic status in institutionalized patients those kept on intensive therapy units are relevant to understanding these complex systems and bring benefits to several health areas, particularly public health. In this study, it was analyzed the clinical and microbiological data from patients hospitalized in intensive therapy units. The interaction between patients and caregivers was modeled and analyzed using dynamic system model and complex network theory, identifying outbreaks values of microorganisms of Enterobacteriaceae Family.

Contribuições da família no processo de escolarização na infância: limites e possibilidades

Pós-graduação em Docência para a Educação Básica - FC

Situação de rua e evasão escolar: atenção para a educação inclusiva

This paper aims to present a study about the importance of Education as a public policy for the integral development of children and adolescents in street situation. As theoretical foundation, the authors used constructs from the National Policy of Special Education in the perspective of Inclusive Education, the Statute of the Child and Adolescent emphasizing the importance of family and social networks as a way to protect children and adolescents who left school and live under the precarious situation of street. In this sense, the National Policy of Special Education in the perspective of Inclusive Education has just pointed to the issues that pass by the inclusion of these children and adolescents to put them back to school. To do this, it is necessary to implement policies designed to the care of children and adolescents victimized by the living on the streets.

O uso das redes sociais online nas interações de produtores e receptores de televisão

This paper discusses the possibility of receiver’s participation in the production of television content mediated by online social networks. Buoyed by media convergence, this research demonstrates how the receiver has been working in online digital media such as TV can take advantage of the specific interaction between the medias to promote the creation of collaborative content, in which the user of social network may interfere the result of the product developed, becoming a new mediatic protagonist. Tool not so used for the production of television that slowly begins to enter the virtual reality, the forging of this new compose process would not only entertain the receiver, but also enrich the language and content television constantly criticized. This study shows the influence of the television medium in which is discussed online, the attitude still shy of the user in content production, and discusses the potential of social networks as a channel of communication between producers and receivers. This work is structured from the definition of social network, in addition to conducting the study what kind of interaction between TV and online social networks is practiced today. Finally, debate whether the potential interaction between TV and social networks is used to its fullest.

Formação de supervisores de ensino no estado de São Paulo: cartografia do curso Gestão de Redes Públicas

Pós-graduação em Educação - FFC

Estimativa da irradiação solar global pelo método de Angstrom-Prescott e técnicas de aprendizado de máquinas

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Qualitative analysis by online nuclear magnetic resonance using Carr-Purcell-Meiboom-Gill sequence with low refocusing flip angles

The Carr-Purcell-Meiboom-Gill (CPMG) pulse sequence has been used in many applications of magnetic resonance imaging (MRI) and low-resolution NMR (LRNMR) spectroscopy. Recently. CPMG was used in online LRNMR measurements that use long RF pulse trains, causing an increase in probe temperature and, therefore, tuning and matching maladjustments. To minimize this problem, the use of a low-power CPMG sequence based on low refocusing pulse flip angles (LRFA) was studied experimentally and theoretically. This approach has been used in several MRI protocols to reduce incident RF power and meet the specific absorption rate. The results for CPMG with LRFA of 3 pi/4 (CPMG(135)), pi/2 (CPMG(90)) and pi/4 (CPMG(45)) were compared with conventional CPMG with refocusing pi pulses. For a homogeneous field, with linewidth equal to Delta nu = 15 Hz, the refocusing flip angles can be as low as pi/4 to obtain the transverse relaxation time (T(2)) value with errors below 5%. For a less homogeneous magnetic field. Delta nu = 100 Hz, the choice of the LRFA has to take into account the reduction in the intensity of the CPMG signal and the increase in the time constant of the CPMG decay that also becomes dependent on longitudinal relaxation time (T(1)). We have compared the T(2) values measured by conventional CPMG and CPMG(90) for 30 oilseed species, and a good correlation coefficient, r = 0.98, was obtained. Therefore, for oilseeds, the T(2) measurements performed with pi/2 refocusing pulses (CPMG(90)), with the same pulse width of conventional CPMG, use only 25% of the RF power. This reduces the heating problem in the probe and reduces the power deposition in the samples. (C) 2011 Elsevier B.V. All rights reserved.

Apectos conceituais e metodológicos de redes sociais e sua influência no estudo de fluxos de informação

As ligações e interações propiciadas pelas redes sociais permitem compreender como ocorrem os fluxos de informação entre indivíduos e instituições que unem esforços na busca de metas comuns. O artigo apresenta aspectos conceituais sobre redes e redes sociais ressaltando que a estrutura e as relações de interação e intermediação entre os elos da rede impulsionam mudanças nos fluxos de informação. Descreve a metodologia de Análise de Redes Sociais (ARS) sinalizando como esta pode ser utilizada na área da Ciência da Informação para compreender os fluxos de informação que se configuram e re-configuram nas redes sociais a partir da estrutura de relacionamento

O lado escuro da capital social: implicações sociais e políticas

O artigo questiona a associação direta entre a interação em redes sociais e a produção de um tipo de capital social que traz ganhos benéficos à comunidade. O capital social pode adquirir formas e resultar em efeitos negativos sobre as relações sociais. Argumentase assim que relações fundadas em tais princípios, dependendo do tipo de vínculos entre os atores, do contexto sócio-econômico e da fragilidade das ações das instituições e do Estado, podem favorecer a emergência do lado escuro do capital social, conduzindo ao aumento do crime organizado, à perpetuação do clientelismo e da corrupção.

Direito de livre expressão e direito social à informação na era digital

O artigo procura aprofundar o tema da liberdade de expressão e do direito à informação, tal como concebidos na democracia que se estabelece a partir da idéia de que todo o poder emana do povo e em seu nome é exercido, nos marcos da comunicação contemporânea postos pelas novas tecnologias e pelas redes interconectadas. A liberdade de expressão e o direito à informação de fato se expandem na era digital? Em que termos? Há novos constrangimentos para esses direitos fundamentais? Quais os desafios?

Predicting epidemic outbreak from individual features of the spreaders

Knowing which individuals can be more efficient in spreading a pathogen throughout a determinate environment is a fundamental question in disease control. Indeed, over recent years the spread of epidemic diseases and its relationship with the topology of the involved system have been a recurrent topic in complex network theory, taking into account both network models and real-world data. In this paper we explore possible correlations between the heterogeneous spread of an epidemic disease governed by the susceptible-infected-recovered (SIR) model, and several attributes of the originating vertices, considering Erdos-Renyi (ER), Barabasi-Albert (BA) and random geometric graphs (RGG), as well as a real case study, the US air transportation network, which comprises the 500 busiest airports in the US along with inter-connections. Initially, the heterogeneity of the spreading is achieved by considering the RGG networks, in which we analytically derive an expression for the distribution of the spreading rates among the established contacts, by assuming that such rates decay exponentially with the distance that separates the individuals. Such a distribution is also considered for the ER and BA models, where we observe topological effects on the correlations. In the case of the airport network, the spreading rates are empirically defined, assumed to be directly proportional to the seat availability. Among both the theoretical and real networks considered, we observe a high correlation between the total epidemic prevalence and the degree, as well as the strength and the accessibility of the epidemic sources. For attributes such as the betweenness centrality and the k-shell index, however, the correlation depends on the topology considered.

Optimal reactive power flow via the modified barrier Lagrangian function approach

A new approach called the Modified Barrier Lagrangian Function (MBLF) to solve the Optimal Reactive Power Flow problem is presented. In this approach, the inequality constraints are treated by the Modified Barrier Function (MBF) method, which has a finite convergence property: i.e. the optimal solution in the MBF method can actually be in the bound of the feasible set. Hence, the inequality constraints can be precisely equal to zero. Another property of the MBF method is that the barrier parameter does not need to be driven to zero to attain the solution. Therefore, the conditioning of the involved Hessian matrix is greatly enhanced. In order to show this, a comparative analysis of the numeric conditioning of the Hessian matrix of the MBLF approach, by the decomposition in singular values, is carried out. The feasibility of the proposed approach is also demonstrated with comparative tests to Interior Point Method (IPM) using various IEEE test systems and two networks derived from Brazilian generation/transmission system. The results show that the MBLF method is computationally more attractive than the IPM in terms of speed, number of iterations and numerical conditioning. (C) 2011 Elsevier B.V. All rights reserved.