Neto, Otilio Paulo S. http://orcid.org/0000-0003-1940-9773
Silva, Aristófanes C.
Paiva, Anselmo C.
Gattass, Marcelo
Funding for this research was provided by:
Federal Institute of Piau (IFPI)
Coordination for the Improvement of Higher Education Personnel (CAPES)
National Council for Scientic and Technological Development (CNPq)
Foundation for the Protection of Research and Scientic, Technological Development of the State of Maranh~ao (FAPEMA)