1. Department of Mechanical Engineering, School of Engineering of Ilha Solteira, São Paulo State University, Ilha Solteira, São Paulo, 15385-000, Brazil ferres.brogin@unesp.br
2. Department of Neurology and Neurosurgery, Federal University of São Paulo, São Paulo, 04039-032, Brazil jean.faber@unifesp.br
3. Department of Mathematics, São Paulo State University, School of Engineering of Ilha Solteira, São Paulo, 15385-000, Brazil douglas.bueno@unesp.br