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Prevenção do branqueamento de capitais ao financiamento do terrorismo
Patrício, Ana Carolina de Oliveira e SilvaFluxos monetários permanentes fazem com que a economia mundial nunca pare. Numa atividade ininterrupta e constantemente aberta, que aumenta o número de ameaças ao sistema financeiro, com destaque para o Branqueamento de Capitais e o Financiamento do Terrorismo, dois crimes que geram danos profundos em toda a sociedade. Uma vez que, os bancos são umas das vias preferenciais dos criminosos para fazer entrar quant...
Resistência do Streptococcus pyogenes aos macrólidos e à penicilina, na nossa p...
Castro, Teresa Sofia Moreira de Oliveira e; Hospital do Espírito Santo de Évora; Mateus, Ana Maria; Jacinto, Nuno; Amaral, Luís; Coutinho, AdrianaIntrodução: As amigdalites são infecções bacterianas muito comuns na infância, sendo o Streptococcus pyogenes o principal agente envolvido. A penicilina é a primeira escolha no tratamento deste tipo de infecções, contudo os macrólidos podem ser uma alternativa, sendo que estudos recentes mostraram uma diminuição da resistência a estes fármacos. Dado que a escolha do antibiótico é feita maioritariamente de forma...
Possibilidades e limites da autonomia das escolas: estudo de caso: o território...
Correia, Maria Filomena Oliveira e SilvaO nosso objeto de estudo, suportado no título da nossa tese: “Possibilidades e limites da autonomia das escolas. Um estudo de caso: o Território Educativo de Gondomar” insere-se no domínio dos estudos em educação, nomeadamente da compreensão das políticas educativas, pelo que se impõe o conhecimento do contexto social, político e teórico em que os fenómenos ocorrem e os paradigmas que os enformam, presentes na ...
A knowledge-based framework to facilitate E-training implementation
Oliveira, Pedro Oliveira e Costa Gomes deDissertação para obtenção do Grau de Mestre em Engenharia Eletrotécnica e de Computadores ; Nowadays, there is an evident increase of the custom-made products or solutions demands with the objective to better fits to customer needs and profiles. Aligned with this, research in e-learning domain is focused in developing systems able to dynamically readjust their contents to respond to learners’ profiles demands....
Computing π(x): the combinatorial method
Tomás Oliveira e SilvaThis article presents a self-contained description of the method proposed by Deléglise and Rivat — which has roots on earlier work by Meissel, by Lehmer, and by Lagarias, Miller and Odlyzko—to compute π(x), which is the number of primes not larger than x. To make life easier to programmers, the major parts of the computation of π(x) are also presented in algorithmic form. The more ...
On the Kautz Filters and their Use in the Approximation on LinearTtime Invarian...
Tomás António Mendes Oliveira e Silva; Pedro Guedes de OliveiraLet H be the transfer function of a strictly stable, causal, and, linear system, and let h be its impulse response. If one does not assume a specific form for H, or, what is the same, a specific model for the system, the question arises as how to approximate that transfer function by another with a known form. (...)Keywords: Kautz filters; linear systems; approximation optimization; system identificat...
Computational Structures for Image Processing in Tomography
António Rui de Oliveira e Silva Borges; António Ferrari de AlmeidaThis work describes the design of a parallel computing system, MIMD type, suited for image reconstruction in X-ray transmission tomography and single phnlon emission tomography. The main requirement was to accomplish a good price/performance trade-off. So that strorig cost reductions might be possible. (...)Keywords: tomographic reconstruction; convolution algorithms; multiprocessing; MIMD topologies;...
Software Library ,for Mathematical Calculus and Digital Signal Processing
Miguel Augusto Mendes Oliveira e Silva; Francisco VazThis work presents a study about structuring application software for numerical calculus and digital signal processing.Based on this study, a software library was projected and implemented.The type of structure developed for this library is based on the object-oriented paradigm, contrasting with the classical functional structuring used by most of the existing libraries and mathematical applications. (...)keywo...
Digital Compression of Audio Signals Applying Perceptual Criteria and Backward ...
João Manuel de Oliveira e Silva Rodrigues; Ana Maria Perfeito ToméIn this work, the problem of digital coding of high quality audio signals is analised, and the principies of perceptual coding are identified as the most satisfactory solution. We present a synthesis of the perceptual coding systems found in the literuture, stressing their common structure, and we characterize the possihle variants that each module in that structure allows. Based on this study, a new perceptual...
Simulation of MIMD Topologies
Ricardo Luis Santos Sal Monteiro; António Rui de Oliveira e Silva BorgesSimulation plays an important role in evaluating multiprocessor architectures. However, simulating a multiprocessing architecture where a detailed description of each processing element is carried out, becomes a very time consuming task and demands extensive computing resources. (...)Keywords: multiprocessing; simulation; computer architecture; mimd; parallel processingM.S., 1995more info. http://opac...
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