Lista de Projetos

O presente Projeto de Investigação pretende desenvolver uma investigação aprofundada que: 1) identifique o empreendedorismo de emigrantes portugueses em Andorra, Londres (Bairro de StocKwel), Nice (cidade) e Mónaco; 2) avalie a sua inserção nos contextos socioeconómicos, culturais e políticos locais; 3) compare esta inserção nos diversos territórios/situações em estudo; 4) identifique a sua presença nos media (internet, documentários, imprensa, etc...). Este projeto criará uma plataforma e uma base-de-dados interativa que, numa primeira fase e partindo de uma metodologia convencional de investigação, abaixo indicada, permita concretizar os objetivos referidos.

As não-respostas constituem uma das maiores preocupações na realização de sondagens. Qualquer sondagem, independentemente do método de recolha adoptado, é afectada pela dificuldade em contactar e/ou conseguir a colaboração das pessoas. As sondagens por telemóvel não são excepção a esta situação. A recolha e análise de paradados no contexto das sondagens por telemóvel é essencial na investigação das causas e das consequências da não-resposta nos resultados da sondagem. A compreensão do mecanismo gerador de não-respostas e dos seus efeitos é indispensável para a implementação de estratégias eficientes de contacto e para o desenvolvimento de procedimentos de ajustamento dos resultados que minimizem o efeito das não-respostas no erro da sondagem. Este projecto teve três linhas de investigação, correspondentes a três objectivos interligados: (1) Identificar os determinantes mais significativos da não-resposta nas sondagens por telemóvel, de entre um conjunto de factores relativos ao processo da sondagem e a atributos dos elementos da amostra seleccionados, (2) Medir o impacto da não-resposta nos resultados da sondagem - em que medida respondentes e não-respondentes são diferentes e como é que as não-respostas afectam as estimativas da sondagem e (3) Definir mecanismos de ajustamento das respostas para atenuar o efeito das não-respostas.

“Forensics is the application of a broad spectrum of sciences to answer questions of interest to a legal system. This may be in relation to a crime or a civil action” [Wikipedia]. Since many such questions boil down to identifying, or verifying the identity, of people allegedly involved in some action, a clear relationship exists between forensics and biometrics. Biometrics developed a number of techniques which can clearly facilitate the identification of people involved in criminal actions or civil incidents. Thus, although the two communities have traditionally often operated in relative isolation, there are many scenarios where the synergic cooperation of multimodal biometrics and forensics can be successfully applied. To address such multifaceted areas it is important to develop an interdisciplinary network with complementary competences, to foster the birth of a new community which can develop novel technological solutions to crucial issues and new challenges in forensic science.The Action will promote new partnerships, will provide education and training, will contribute to develop new standards and best practices, will produce awareness of the potential benefits of advanced technologies for evidence analysis in forensic cases and will stimulate improved mutual understanding of collaborative working models linking the academic and industrial sectors.

The project will take LTE-Advanced as a reference and will explore possible enhancements to the support of femtocells. It will use mechanisms to reduce the interference-limited transmission with full frequency reuse. These include CQI, QoS- and interference- aware scheduling and RRM with user-grouping, coordinated RRM, exploiting the spatial degrees of freedoms from multi-antenna systems and OFDMA through MIMO and beam forming techniques, active interference management and CoMP transmission, as well as carrier aggregation for multi-band transmission.New technologies like aggregate carriers and cooperative multi antennas antenna systems as part of LTE-Advanced systems will be evaluated with respect to their ability to enhance the performance of networked femtocells based on LTE-A. The availability of Positioning information, can help provide the network with information on the terminal positions and, with this, to adapt the transmission scheme to the terminal avoiding worst channel conditions.At the network layer, considerable research and development has been recently focused on the use of small cellular base stations. However, those cells have only been considered as mere extensions to cellular networks, allowing the enlargement of service coverage. The use of these small cells, mostly deployed by consumers, has not yet been fully explored. There are many services and protocols in the network that could benefit on the scattering of this kind of cell deployment. This project will exploit the opportunities that small cells will bring to improvement on the network architecture. The aim is to a achieve a much richer small cell, that will provide better support for several services and protocols that could take advantage on a distributed architecture and/or context ware and localized information.Femtocells can have many benefits for both operators and users. From an operational or deployment perspective however their integration into the network is quite hard. From the ...