The main objective of this study is to propose a discrete approach to water quality study, applied to freshwater ecosystems, through the uctuations in the populations of benthic macroinvertebrates and their tolerance to pollution.

In this work the treatment of the cognitive interests of students is revealed, it is a way that allows the stratification of the group students according to their tastes and aspirations, and from that position by contextualizing ...

In this work an analysis is elaborated on the concept of cultural heritage. A study is made to know the authentic interest of the different actors who participate and affect the architectural heritage, the government and ...

This article aims to communicate the results of two different studies, one using quantitative approach and the other an ethnographic method, in which the concept of Afromexican identity has been deeply questioned. The ...

Hymenaea courbaril, commonly known as coapinol, carob or locust, is a leguminous tree that belongs to the Fabaceae family, can reach 30-40 m in height. This tree has produced approximately 800 fruits per year, which are ...

The study area includes from cañón del Zopilote to carrizal de Bravo, belonging to the Balsas river basin, Guerrero, México. This area is considered one of its most important centers of diversity and endemism of the genus ...

Since the Spanish Conquest, the Mapuche people have faced dispossessions and different intervention pacts in their relationship with the Chilean nation. The adoption of neoliberal economic policies during the Augusto ...