Ofelia Woo Morales D. in Social Sciences, professor-researcher in the Department of Socio-Urban Studies at the University of Guadalajara, member of the National System of Researchers level. iiProfile Promep. Topics of interest: international migration, specializing in the migration of Mexicans to the United States, female and family migration, return migration and immigration policy reforms. Author and coordinator of several national and international publications on these topics. Research projects in progress: "Mexican migration to the United States, between permanence and return" (Universidad de Guadalajara); collaborator in the project "Borders of the 21st Century" (Universidad de Guadalajara). xxiThe reconfiguration and new functions of the century's frontiers. xxi", El Colegio de la Frontera Norte, convocatoria Ciencia de Frontera, 2019.