2 - Prototype of technical boxes to increase productivity in native bee meliponaria (Scaptotrígona) SOTO-LEYVA, Yasmin, BONES-MARTÍNEZ, Rosalía and SANTOS-OSORIO, Arturo
3 - Value chain design to open a recycling plant in the municipalities of Huauchinango-Xicotepec, Puebla GONZÁLEZ-MUÑOZ, Lilian, SOTO-LEYVA, Yasmin and AHUACATITLA-PÉREZ, José Miguel
4 - Ion exchange of heavy metals using a modified zeolite filter integrated into a prototype autonomous water purifier (AWP) on a community scale BECERRA-PANIAGUA, Dulce K., HERNÁNDEZ-GRANADOS, Araceli, RUIZ-SUAREZ, Alison and CEDANO-VILLAVICENCIO, Karla
5 - Approach to the optimization of parameters of a truncated cone solar concentrator using the Excel Solver tool DE ANDA-LÓPEZ, Rosa María, BETANZOS-CASTILLO, Francisco, SÁNCHEZ-SALINAS, Agripín and AGUIRRE-ARANDA, Rodolfo
6 - Evaluation of the heavy metal’s levels in PM10 particles in air of an urban site of Leon City, in the cold dry climatic season 2018 CERON-BRETON, Julia Griselda, CERON-BRETON, Rosa María, LARA-SEVERINO, Reyna del Carmen and MARTÍNEZ-MORALES, Stephanie
7 - Methodology for processing meteorological and hydrometric data at basin level SÁNCHEZ-QUISPE, Sonia Tatiana, NAVARRO-FARFÁN, María del Mar and GARCÍA-ROMERO, Liliana
8 - Comparative study of inorganic pollutant (Chromo) in a surface body water in frontera, Centla, Tabasco SUAREZ-GARCÍA, Sandra Manuela, ZARATE, Marco Antonio, PÉREZ-DURÁN, Marco Antonio and VÁZQUEZ-AGUILAR, Clotilde