Tese de doutoramento em Informática
Tese de mestrado integrado. Engenharia Civil (Especialização em Geotecnia). Faculdade de Engenharia. Universidade do Porto. 2010
Consensus is an abstraction of a variety of important challenges in dependable distributed systems. Thus a large body of theoretical knowledge is focused on modeling and solving consensus within different system assumptions. However, moving from theory to practice imposes compromises and design decisions that may impact the elegance, trade-offs and correctness of theoretical appealing consensus protocols. In t...
The sheer volumes of data handled by today's Internet services demand uncompromising scalability from the persistence substrates. Such demands have been successfully addressed by highly decentralized key-value stores invariably governed by a distributed hash table. The availability of these structured overlays rests on the assumption of a moderately stable environment. However, as scale grows with unprecedented...
The increase of human life span will have profound implications in Public Health in decades to come. By 2030, there will be an estimated 1.2 billion women in post-menopause. Hormone Replacement Therapy with synthetic hormones is still full of risks and according to the latest developments, should be used for the shortest time possible. Searching for alternative drugs is inevitable in this scenario and science m...
The Bovine Viral Diarrhea is a cause of important production and reproduction losses in dairy and beef cows exploitations. The aim of the present study was to determine the seroprelavence of beef cows in farms of the Baixo Alentejo, a south region of Portugal. A total of 3622 cows originated in 20 extensive beef farms were used. From this pool, a sample 111 animals greater than one old year were randomized usin...
RESUMO - O presente trabalho aborda a temática da avaliação de desempenho do ponto de vista dos vários intervenientes no sistema de saúde português. Propõe a criação de indicadores de desempenho para um sistema nacional, em que cada patamar tem o seu próprio modelo definido. Estes modelos de organização dos dados são uma forma de concatenar dois dos modelos mais utilizados, o painel de controlo de gestão e o ba...
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