This is an interdisciplinary group created by members of five Spanish Universities (Complutense University of Madrid, Pompeu Fabra University of Barcelona, University of Alcalá de Henares, University of Loyola and University of Valladolid), a French one (University Bourdeaux 3) with the new addition of the Brazilian University of Campinas, the Argentinian University of Buenos Aires and the Mexican Sonora State University and Veracruzana University.