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Copyright (c) 2017

Nova Scientia, year 9, issue 19, November 2017 – April 2018, is a biannual journal printed by the Universidad De La Salle Bajío, with its address: Av. Universidad 602, Col. Lomas del Campestre, C. P. 37150, León, Gto. México. Phone: (52) 477 7108500, e-mail: http://nova_scientia.delasalle.edu.mx. Chief editor: Ph.D. Rolando Pérez Álvarez and Ph.D. Ramiro Rico Martínez. ISSN 2007 - 0705. Copyright for exclusive use No. 04-2008-092518225500/102, Diffusion rights via computer net 04 - 2008 – 121011584800-203 both granted by the Instituto Nacional del Derecho de Autor.

Editor responsible for updating this issue: Direction of Research Department of the Universidad De La Salle Bajío, last updated on Nov 2th, 2017.