An automated framework for the management of P2P traffic in ISP infrastructures

Peer-to-Peer (P2P) is nowadays a widely used paradigm underpinning the deployment of several Internet services and applications. However, the management of P2P traffic aggregates is not an easy task for Internet Service Providers (ISPs). In this perspective, and considering an expectable proliferation in the use of such ap- plications, future networks require the development of smart mechanisms fostering an easier coexistence between P2P applications and ISP infrastructures. This paper aims to contribute for such research efforts presenting a framework incorporating useful mechanisms to be activated by network administrators, being also able to operate as an automated management tool dealing with P2P traffic aggregates.

Inclusão no ensino superior: modelos de atuação e contributos dos serviços de apoio em Portugal

A inclusão de estudantes com deficiência na Universidade tem desafiado as instituições a responderem às demandas de acesso e permanência específicas destes estudantes. Neste artigo analisaremos como estão organizadas as iniciativas institucionais de inclusão, tomando como objeto os serviços de apoio na universidade e os desafios explicitados pelos responsáveis dos setores. Participaram do estudo três responsáveis técnicas pelos serviços de inclusão em três universidades portuguesas. Os dados foram recolhidos por meio de entrevista semiestruturada e analisados numa abordagem exploratória. Os resultados apontam para o desafio de proporcionar, para além das condições de acesso, a qualificação das condições de permanência que possam resultar em experiências exitosas dos estudantes, ampliando a oportunidades de obter autonomia e sucesso académico. A partir da discussão, apresentaremos considerações que podem constituir indicadores de intervenção e, ainda, temas para investigações futuras que possam contribuir para práticas mais adequadas de atendimento a esse grupo de estudantes.

A Responsabilidade Civil dos Gerentes e Administradores pelo pagamento das coimas e multas imputáveis à sociedade

Dissertação de mestrado em Direito dos Contratos e da Empresa

Designation of natural monuments by the local administration: the example of Viana do Castelo municipality and its engagement with geoconservation (NW Portugal)

"First online: 11 April 2016"

Local non-negative initial data scalar characterization of the Kerr solution

For any vacuum initial data set, we define a local, non-negative scalar quantity which vanishes at every point of the data hypersurface if and only if the data are Kerr initial data. Our scalar quantity only depends on the quantities used to construct the vacuum initial data set which are the Riemannian metric defined on the initial data hypersurface and a symmetric tensor which plays the role of the second fundamental form of the embedded initial data hypersurface. The dependency is algorithmic in the sense that given the initial data one can compute the scalar quantity by algebraic and differential manipulations, being thus suitable for an implementation in a numerical code. The scalar could also be useful in studies of the non-linear stability of the Kerr solution because it serves to measure the deviation of a vacuum initial data set from the Kerr initial data in a local and algorithmic way.

Analysis of a Local HIV-1 Epidemic in Portugal Highlights Established Transmission of non-B and -G Subtypes

Existing data supports Portugal as the Western Europe country with highest HIV-1 subtype diversity. However, detailed phylogenetic studies of Portuguese HIV-1 epidemics are still scarce. Thus, our main goal was to analyze the phylodynamics of a local HIV-1 infection in the Portuguese region of Minho. Molecular epidemiological analysis was applied to data from 289 HIV-1 infected individuals followed in the reference Hospital of the province of Minho, Portugal, in which isolated viruses had been sequenced between 2000 and 2012. Viruses of the G (29.1%) and B (27.0%) subtypes were the most frequent, followed by recombinant forms (17.6%), C (14.5%), F1 (7.3%) and A1 (4.2%) subtypes. Multinomial logistic regression revealed that the odds of being infected with A1 and F1 subtype increased over the years when compared with B, G, C or recombinant viruses. As expected, polyphyletic patterns suggesting multiple and old introductions of subtypes B and G were found. However, transmission clusters of non-B and -G viruses among native individuals were also found with the dates of the most recent common ancestor estimated to the early 2000s. Our study supports that the HIV-1 subtype diversity in the Portuguese region of Minho is high and has been increasing in a manner that is apparently driven by factors other than immigration and international travel. Infections with A1 and F1 viruses in the region of Minho are becoming established and were mainly found in sexually transmitted clusters, reinforcing the need for more efficacious control measures targeting this infection route.

O reforço da democracia local no âmbito da reforma da administração autárquica

Dissertação de mestrado em Direito das Autarquias Locais

Global and local coordinates

This chapter described the global and local coordinate systems utilized in the formulation of spatial multibody systems. Global coordinate system is considered in the present work to denote the inertia frame. Additionally, body-fixed coordinate systems, also called local coordinate systems, are utilized to describe local properties of points that belong to a particular body. Furthermore, the process of transforming local coordinates into global coordinates is characterized by considering a transformation matrix. In the present work, Cartesian coordinates are utilized to locate the center of mass of each rigid body, as well as the location of any point that belongs to a body.

Transferência de conhecimento da formação para o local de trabalho: um estudo de caso misto exploratório

Dissertação de mestrado integrado em Psicologia