Browsing by Issue Date, starting with "2005-10"
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- Enhanced UMTS Cost/Revenue Optimisation in Offices ScenariosPublication . Cabral, Orlando Manuel Brito; Velez, Fernando José; Hadjipollas, George; Stylianou, Marinos; Antoniou, Josephine; Vassiliou, Vasilis; Pitsillides, AndreasIn this paper Enhanced UMTS offices scenarios and classes of services up to wideband are taken into account. A model is proposed for optimising Enhanced UMTS based in costs and revenues. A system level simulator is used to obtain the blocking probability, and other QoS measures, e.g., handover failure probability and delay. Using these results, one obtains the system capacity, i.e., the supported fraction of active users and throughput for a given grade of service. The profit (in percentage) was obtained, and the optimum (most profitable) cell radius was found. A higher number of pico-cells (with a cell radius around 34 m) will be a profitable solution for the optimisation of network planning. This will also allow for increasing system capacity and reducing prices.
- Imagens da prostituição femininaPublication . Schouten, Maria Johanna ChristinaEsta abordagem do fenómeno de prostituição feminina foca o impacto da imagem negativa de trabalhadoras sexuais na sua auto-imagem e no seu estatuto na sociedade. Neste contexto, discute-se noções de estigma (Goffman) e opiniões divergentes sobre a comodificação da sexualidade, com referência a autores como Simmel e Appadurai. Ilustrações são apresentadas das atitudes face a trabalhadoras sexuais em vários países e em vários períodos, em particular na história de Portugal. This approach to the phenomenon of female prostitution focuses on the impact the negative image of sex workers has on their own self-image and on their status in society. In this context, notions about stigma (Goffman) are examined and divergent opinions about the commodification of sexuality, drawing on authors such as Simmel and Appadurai, are discussed. Illustrations are provided of the attitudes towards female sex workers in various countries, and in various periods, in particular in the history of Portugal.