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The implementation of quota policies in federal educational institutions increased the heterogeneity of socioeconomic status of students. The objective of this study is to analyze whether the academic performance of the most economically and socially vulnerable students is inferior to the others. The academic performance of students of integrated courses was analyzed using descriptive statistics and machine learning techniques. In the first one, the students were classified as qutota and non-quota students and the results showed that the performance of both is similar. The machine learning analysis found socioeconomics situations where students tend to have a lower performance compared to other students. The obtained rules in this analysis can justify closer pedagogical monitoring for students who fit into them, preventing evasion and improving the performance of these students. [ABSTRACT FROM AUTHOR]

A study was conducted in order to characterize the goat production system and the phenotype of creole goat in the physiographic sub-province Volcanoes of Colima. Twenty-two questionnaires including qualitative and quantitative variables related to the producer, the unit and the production system were applied and also, 371 goats in reproductive age were observed to carry out a faneroptic characterization. Data was analysed with descriptive statistics and principal component and hierarchical cluster analysis. Production units were oriented to meat production and had an average area and flock of 10.90 ha and 36 heads respectively. There is no re-productive management, 95% of producers dewormed their animals while vaccination was only implemented by 55% of them. In 95% of the farms labor was provided by the family, 32% had a paved access road and 77% electricity. Producers had an average age of 55 years, low level of schooling and 14 years of experience in goat breeding. None of the producers had access to formal credit and only 5% had access to technical assistance. On average 15 goats per producer were traded per year with an average price of $33.50/kg. In the region prevailed goats with a combined white-brown coat, short and uniform hair, spiral-shaped horns, straight front-nasal profile, hanging ears, black mucous membrane, without the presence of wattles and beards. They also presented to a greater extent globular-shape udders, with a poorly marked median suspensory ligament and nipples with vertical implantation. [ABSTRACT FROM AUTHOR]