3122035 documents found, page 312172 of 312204
Análise do impacto das redes sociais e dos animadores de rádio na RDP Internaci...
Assunção, Gonçalo Santos Guimarães deA rápida evolução digital provocou uma transformação profunda na maneira como o conteúdo é feito, disseminado e apreciado. Essa mudança afeta diretamente os órgãos de comunicação social considerados tradicionais, como as estações de rádio, que hoje enfrentam o desafio de se reinventarem para manter a relevância entre um público cada vez mais conectado e exigente. Nesse cenário, as redes sociais tornaram-se ferr...
People management in the Portuguese non-profits
Valentim, João Andrade e Sousa BritoThis study is focused on the People Management – Human Resources – in the Portuguese non-profit organizations. The objective of this research is to contribute to the understanding of the non-profit sector in terms of the human factor, and at the same time intends to cast light on the factors that compensate and motivate employees. Through a qualitative approach, after conducting a number of interviews to assort...
Maximally node and SRLG-disjoint path pair of min-sum cost in GMPLS networks: a...
Gomes, Teresa; Jorge, Luísa; Melo, Paulo; Girão-Silva, RitaPath protection is a fast and capacity efficient approach for increasing the availability of end-to-end connections. However, sometimes it is not possible to obtain a fully disjoint path pair. In this case it may be admissible to consider a path pair which is as disjoint as possible, and thus provide the best (in a certain sense) level of the single fault protection that can be ensured using this type of approa...
Two Heuristics for Calculating a Shared Risk Link Group Disjoint Set of Paths o...
Gomes, Teresa; Soares, Miguel; Craveirinha, José; Melo, Paulo; Jorge, Luísa; Mirones, Vitor; Brízido, AndréA Shared Risk Link Group (SRLG) is a set of links which share a common risk of failure. Routing protocols in Generalized MultiProtocol Label Switching (GMPLS), using distributed SRLG information, can calculate paths avoiding certain SRLGs. For single SRLG failure an end-to-end SRLG-disjoint path pair can be calculated, but to ensure connection in the event of multiple SRLG failures a set with more than two end-...
A network-wide exact optimization approach for multiobjective routing with path...
Girão-Silva, Rita; Craveirinha, José; Gomes, Teresa; Martins, Lúcia; Clímaco, João; Campos, JoãoA multiobjective routing model for multiprotocol label switching networks with multiple service types and path protection is presented in this article. The routing problem is formulated as a biobjective integer program, where the considered objectives are formulated according to a network-wide optimization approach, i.e. the objective functions of the route optimization problem depend explicitly on all traffic ...
Algorithms for determining a node-disjoint path pair visiting specified nodes
Gomes, Teresa; Martins, Lúcia; Ferreira, Sofia; Pascoal, Marta; Tipper, DavidThe problem of calculating the shortest path that visits a given set of nodes is at least as difficult as the traveling salesman problem, and it has not received much attention. Nevertheless an efficient integer linear programming (ILP) formulation has been recently proposed for this problem. That ILP formulation is firstly adapted to include the constraint that the obtained path can be protected by a node-disj...
Insights into the Photophysics and Supramolecular Organization of Congo Red in ...
Costa, Ana L.; Gomes, Ana C.; Pillinger, Martyn; Gonçalves, Isabel S.; Pina, João; Seixas de Melo, J. SérgioSteady-state and time-resolved absorption and fluorescence measurements are reported for Congo Red (CR) in aqueous and dimethylsulfoxide (DMSO) solutions. The very low fluorescence quantum yield (≈10(-4) ) for CR in dilute solutions together with the absence of a triplet state indicates that internal conversion is the dominant deactivation route with more than 99.99 % of the quanta loss (attributed to the energ...
A investigação sobre Heráldica e Sigilografia na Peninsula Ibérica: entre a tra...
Morujão, Maria do Rosário Barbosa; Salamanca López, Manuel JoaquínEsta obra faz a ponte entre a tradição e a inovação no campo da Heráldica e da Sigilografia respeitantes à Península Ibérica, dando testemunho da vitalidade e renovação destas disciplinas, que têm vindo a suscitar um interesse crescente por parte dos investigadores em ambos os países. Dirigida por Maria do Rosário Barbosa Morujão, da Universidade de Coimbra, e Manuel Joaquín Salamanca López, da Universidad Comp...
Good policy and practices of cultural mapping, planning, and impact assessment ...
Duxbury, NancyThis report presents and reflects on selected good practices in European cities that demonstrate ways in which cultural mapping, cultural planning, and cultural impact assessment can contribute to policy development and implementation for more sustainable and just urban development. The desk review for this study considered good practices that are highlighted within European networks and programmes as well as u...
Non-Newtonian Thermosensitive Nanofluid Based on Carbon Dots Functionalized wit...
Gonçalves, Helena M. R.; Pereira, Rui F. P.; Lepleux, Emmanuel; Pacheco, Louis; Valente, Artur J. M.; Duarte, Abel J.; Bermudez, Verónica de ZeaNon-Newtonian nanofluids present outstanding features in terms of energy transfer and conductivity with high application in numerous areas. In this work, non-Newtonian nanofluids based on carbon dots (Cdots) functionalized with ionic liquids (ILs) are developed. The nanofluids are produced using a simple, single-step method where the raw materials for the Cdots synthesis are glucose and waste biomass (chitin fr...