Rev. investig. Altoandin.

Table of contents
Rev. investig. Altoandin. vol.24 no.1 Puno Jan./Mar 2022

Editorial

	· Effects of the oil spill at the La Pampilla Refinery on the seacoast of Lima (Peru) Pulido Capurro, Víctor; Escobar-Mamani, Fortunato; Arana Bustamante, César; Olivera Carhuaz, Edith · text in Spanish · Spanish ( pdf )

Original Article

	· *Bacterial and fungal influence on the mineralization of bovine manure: evidence on soil fertility in the cultivation of quinoa (Chenopodium quinoa* Willd.)** Paco Pérez, Víctor; Gonzales Torrico, Marcelo; Barrientos, Ermindo; Carevic, Felipe S. · abstract in English \| Spanish · text in Spanish · Spanish ( pdf )

	· Development of nutritional bars using cereals, Andean grains, and squid protein concentrate Roldán Acero, David; Omote-Sibina, Juan Rodolfo; Molleda Ordoñez, Andrés; Olivares Ponce, Fabiola · abstract in English \| Spanish · text in Spanish · Spanish ( pdf )

	· Impact of COVID-19 on the international tourism demand in Peru. An application of the Box-Jenkins methodology Tudela-Mamani, Juan Walter; Cahui-Cahui, Elías; Aliaga-Melo, Grisell · abstract in English \| Spanish · text in Spanish · Spanish ( pdf )

	· *Color variation of Lessonia trabeculata* macroalgae dehydrated with infrared ray dryer** Castro Arata, Daphne H.; Castillo Flores, Yuri K.; Llamoca Domínguez, Edwin; Quinteros, Joanuel Anthony; Méndez Ancca, Sheda · abstract in English \| Spanish · text in Spanish · Spanish ( pdf )

	· Design and construction of prototype color quinoa sorting machine using IR sensors Chagua Aduviri, Irenio Luis; Quispe-Barra, Marco Antonio; Ortega Achata, Olger Alejandrino · abstract in English \| Spanish · text in Spanish · Spanish ( pdf )

Artigo de Revisão

	· Effects of intensive agriculture and climate change on biodiversity Reyes-Palomino, Smith Ervin; Cano Ccoa, Dominga Micaela · abstract in English \| Spanish · text in Spanish · Spanish ( pdf )