Patricia Esperanza Balderas-Cañas holds the PhD (Hons.) in Pedagogy, the master’sdegree in mathematics education, and the degree in Mathematics all of them by UNAM. Sheis Full Time and Definitive Professor in the Systems Engineering Department, UNAM-FI.Her research lines are on operations research (inventory theory, combinatorial optimizationand modelation of systems), and structural model for learning research.
Gabriel de las Nieves Sánchez-Guerrero holds the Doctor degree (Hons.) in SystemsEngineering in the Engineering Graduate School from UNAM. Nowadays he is Full Timeand Definitive Professor in the Systems Engineering Department of the Faculty ofEngineering (UNAM-FI). His research interests include the heuristic techniques forparticipatory planning and systems interactive evaluation. His current research is heuristicsystemic evaluation.