Activity pattern of Anas georgica assessed by camera trap in a temporary wetland in Chile. César Lautaro Chávez Villavicencio, Elier Tabilo Valdivieso 155 - 163 pdf (Spanish)
Effect of Temperature and Stirring Speed in Obtaining the Osmotic Dehydration of Jinger (Zingiber Officinale) Nancy Cañazaca Tito, Judith Carrillo Huamani, Joel J. Coaquira-Quispe, Silvia Pilco Quesada 164-173 pdf (Spanish)
Co-Digestion of Three Types of Manure (Cow, Guinea Pig and Pig) to Obtain Biogas in Southern Peru Jaime Ernesto Barreda Del Carpio, Midwar R. Ancco Mamani, Alexia D. Nuñez Chambi, Christopher E. Aguirre Gamero, Kevin Tejada Meza, Gustavo M. Pacheco Pacheco 174-181 pdf (Spanish)
Effects on ecosystems due to the presence of heavy metals in small-scale mining activity in Puno HECTOR HUMBERTO NOVOA VILLA, Américo Arizaca Ávalos, Fidel Huisa Mamani 182-189 pdf (Spanish)
Characterization of the wind with the Weibull function for a high Andean zone, Laraqueri - Peru Ubaldo Yancachajlla Tito, Oliver Amadeo Vilca Huayta 190-198 pdf (Spanish)
Low-cost sensors for fine particulate matter (PM2.5) characterization in a high Andean city Jesús Ulloa Ninahuamán, Daniel Martin Alvarez-Tolentino, Anieval Peña Rojas, Luis Suarez-Salas 199-207 pdf (Spanish)
Use of sodium hypochlorite to reduce the concentration of Mn2+ in acid mine waters to improve the water quality of the Yauli River, Junín, Perú Castillo Ungaro Castillo Ungaro, Victor Pulido Capurro, Dominga Micaela Cano Coa, Edith Olivera Carhuaz 208-219 pdf (Spanish)