Felipe Machado

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In this work, a device for generating automated olfactory stimuli in functional magnetic resonance imaging (fMRI) studies is described. The novel issues of our design are: synchronization between the acquisition and the olfactory task, automated control of experimental parameters (odorants sequences, frequency, time and concentration of stimuli). Finally,(More)
Rheumatoid arthritis (RA) is a chronic inXammatory disorder that may symmetrically aVect all synovial joints. Extra-articular manifestations such as fatigue, discomfort, mild fever, impaired lung function and rheumatoid nodules are not rare. The eyes involvement occurs in about 15–25% of the cases characterized by keratoconjunctivitis sicca, stromal(More)
OBJECTIVE To show the results of a device that generates automated olfactory stimuli suitable for functional magnetic resonance imaging (fMRI) experiments. MATERIAL AND METHODS Ten normal volunteers, 5 women and 5 men, were studied. The system allows the programming of several sequences, providing the capability to synchronise the onset of odour(More)
In this paper we present our experience in teaching digital electronic circuit and system design with FPGAs using VHDL. The course follows a Project Based Learning methodology, in which the students learn how to design digital circuits and systems in a practical way. During the course, students design electronic circuits of incremental complexity. At the(More)
Virtual worlds have recently gained wide recognition as an important field of study in Computer Science. In this work we present an analysis of the mobility and interactions among characters in World of Warcraft (WoW) and Second Life based on the contact opportunities extracted from actual user data in each of those domains. We analyze character contacts in(More)