Alexandre Ormiga Galvão Barbosa

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This work presents the development of a brain computer interface as an alternative communication channel to be used in Robotics. It encompasses the implementation of an electroencephalograph (EEG), as well as the development of all computational methods and necessary techniques to identify mental activities. The developed brain computer interface (BCI) is(More)
This work has as objective the development of an optimization methodology, based on genetic algorithms (GAs) applied to deterministic mathematical models representing a catalytic three-phase reactor that is widely used in petroleum and petrochemical, chemical and pharmaceutical industries. These reactors also have a potential application in waste water(More)
BACKGROUNDS The aim of this study is identify the main morphological patterns of the pancreas in AIDS patients in use of Higly Active Antiretorviral Therapy (HAART). METHODS We conducted a cross sectional study in the year of 2010. The inclusion criteria were patients older than 18 years who died of AIDS with the use of HAART (2006-2009) and underwent to(More)
INTRODUCTION A recent study presented the concept of an electrochemical-induced dissolution technique of fractured instruments. The purpose of this study was to test the ability to dissolve embedded fragments of K3 nickel-titanium (NiTi) files. The surface of the fragment exposed to the electrolytic solution was the main parameter evaluated as an(More)
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