Rev. investig. Altoandin.

Table of contents
Rev. investig. Altoandin. vol.24 no.3 Puno July/Sept. 2022

Original Article

	· *Activity pattern of Anas georgica* assessed by camera trap in a temporary wetland in Chile** Chávez-Villavicencio, César; Tabilo Valdivieso, Elier · abstract in English \| Spanish · text in Spanish · Spanish ( pdf )

	· Effect of Temperature and Stirring Speed in Obtaining the Osmotic Dehydration of Jinger (Zingiber Officinale) Cañazaca Tito, Nancy; Carrillo Huamani, Judith; Coaquira-Quispe, Joel Jerson; Pilco-Quesada, Silvia · abstract in English \| Spanish · text in Spanish · Spanish ( pdf )

	· Co-Digestion of Three Types of Manure (Cow, Guinea Pig and Pig) to Obtain Biogas in Southern Peru Barreda-Del-Carpio, Jaime E.; Ancco Mamani, Midwar R.; Núñez Chambi, Alexia D.; Aguirre, Christopher E.; Tejada Meza, Kevin; Pacheco Pacheco, Gustavo M. · abstract in English \| Spanish · text in Spanish · Spanish ( pdf )

	· Effects on ecosystems due to the presence of heavy metals in small-scale mining activity in Puno Novoa Villa, Héctor Humberto; Arizaca Avalos, Américo; Huisa Mamani, Fidel · abstract in English \| Spanish · text in Spanish · Spanish ( pdf )

	· Characterization of the wind with the Weibull function for a high Andean zone, Laraqueri - Peru Yancachajlla Tito, Ubaldo; Vilca Huayta, Oliver Amadeo · abstract in English \| Spanish · text in Spanish · Spanish ( pdf )

	· Low-cost sensors for fine particulate matter (PM_2.5) characterization in a high Andean city Ulloa Ninahuamán, Jesús; Alvarez-Tolentino, Daniel; Peña Rojas, Anieval; Suarez-Salas, Luis · abstract in English \| Spanish · text in Spanish · Spanish ( pdf )

	· 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, Ricardo; Pulido Capurro, Víctor; Cano Coa, Dominga Micaela; Olivera Carhuaz, Edith · abstract in English \| Spanish · text in Spanish · Spanish ( pdf )