**Author details**

Francisco Sousa Segundo1 , Marcelo Jorge Cavalcanti de Sá1 \* and Roberto Lopes de Souza<sup>2</sup>

1 Federal University of Campina Grande, Patos, Brazil

2 Federal University of Mato Grosso, Cuiaba, Brazil

\*Address all correspondence to: mjcdesa@gmail.com

© 2019 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
