This volume is the second issue of 2015 of the journal Scientia cum Industria. We would like to express our sincere thanks.
Caxias do Sul, november, 2015
Prof. Otávio Bianchi
Scientia cum Industria, eISSN: 2318-5279
Published by the University of Caxias do Sul under the terms of a Creative Commons CC BY 4.0 License