; O Ciber-Rato é uma competição de robótica, em ambiente simulado, que decorre anualmente na Universidade de Aveiro. O módulo de visualização do ambiente permite actualmente uma visualização em duas dimensões, nascendo por isso a vontade de criar uma ferramenta que permita visualizar a competição em 3 dimensões. Esta fe...
Dissertation presented to obtain the Ph.D degree in Biology, Neuroscience ; Reinforcement learning (RL) has provided key insights to the neurobiology of learning and decision making. The pivotal nding is that the phasic activity of dopaminergic cells in the ventral tegmental area during learning conforms to a reward prediction error (RPE), as speci ed in the temporal-di erence learning algorithm (TD). This ha...
Actas do VII Congresso Internacional da APEC, decorrido na Universidade de Évora (Abril de 2008).
The thoracic esophageal perforations frequently complicate with fistula when submitted to primary suture. The use of autogenous tissues, like pleura, to reinforce the primary suture has proved to be useful in reduce the incidence of fistulas or at least the severity of the leaks in case they occur. The mortality has reduced too, consequently. A case of an extensive esophageal perforation is presented, where the...
Esophageal perforations are related to high mortality rates, especially if there is a delayed diagnostic and treatment. We report an esophageal perforation caused by caustic ingestion, in a suicidal attempt, successfully treated by esophagectomy after a long period of misdiagnosis that lead to infectious complications.
This paper proposes a flexible approach to bus media redundancy in Controller Area Network (CAN) fieldbuses, both to improve the bandwidth by transmitting different traffic in different channels or to promote redundancy by transmitting the same message in more than one channel. Specifically the proposed solution is discussed in the context of Flexible Time-Triggered protocol over CAN (FTTCAN) and inherits the o...
O projecto de modernos sistemas de engrenamento, para operarem em regimes de grandes potências e elevadas velocidades, recorre cada vez com maior frequência à Concepção Assistida por Computador apoiada em códigos do Método dos Elementos Finitos e do Método dos Elementos Fronteira. A correcta definição da geometria do perfil dos dentes das rodas é fundamental para a credibilidade dos resultados obtidos. A defini...
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