M. F. Patrício

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Progressive supranuclear palsy (PSP) is a neurodegenerative disorder showing predominant brainstem involvement, characterized by marked slowing of rapid eye movements (saccades), particularly along the vertical plane. While the contribution of the brainstem damage for the saccadic disturbance in PSP has been extensively studied, much less is known about its(More)
Saccadic behaviour ranges from reflexive (e.g., prosaccade) to goal oriented voluntary movements (e.g., antisaccade). Behavioural asymmetries between vertical and horizontal saccades have been described both in normal individuals (greater delay of vertical prosaccades) and in disease states such as Parkinson's disease (PD) (prosaccades are short and(More)
PURPOSE To determine the morphometric parameters of filtration blebs of a valved aqueous humor drainage device. MATERIALS AND METHODS Orbital magnetic resonances imaging (MRI) was taken after implantation of an Ahmed valve (FP7 model). Outcomes of the analysis were intraocular pressure (IOP) and the bleb's morphometric analysis (volume, height, major and(More)
In this paper we study a class of numerical methods to solve a singularly perturbed two-point boundary value problem. Our schemes arise as result of choosing an appropriate basis for the solution, as well as making use of collocation. It is possible to obtain arbitrarily high-order methods. We note that, in some cases (constant coefficients), we obtain the(More)
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