The main purpose of this research was to determine the influence of the application of the Octave software on the relevant learning of Calculus I, of the Environmental Engineering students of the National University of Moquegua in 2021. A quasi-experimental design was used, with a group control group composed of 32 students and another experimental group composed of 23 students where the evolution of calculus learning was analyzed, before and after the application of the Octave software, through the use of a Pre Test and another Post Test. Hypothesis testing was carried out using Student’s T test for related samples and independent samples. The results determine that there is a very significant influence of the application of the Octave software on the relevant learning of calculus I, at 0.001 significance in the Student’s t test, from which it is concluded that the application of th...

This study developed and validated a method of analysis by UHPL-DAD to detect and quantify Ivermectin (IVM) residues in wastewater. The implementation of this method consisted of a robust and efficient method, where the retention time for this residue was 3.1 min. However, the parameters considered in the validation process of the analytical method were: selectivity, linearity, detection limit, quantification limit and recovery percentage; the method is selective, the correlation coefficient is R2 ≥ 0.99, it presents a detection limit (LD) of 0.003 µg L-1, a quantification limit (LQ) of 0.01 µg L-1, and a recovery percentage of 90% (with fortification of 0.1 µg L-1).