Numerical methods are useful for solving differential equations that model physical problems, for example, heat transfer, fluid dynamics, wave propagation, among others; especially when these cannot be solved by means of exact analysis techniques, since such problems present complex geometries, boundary or initial conditions, or involve non-linear differential equations. Currently, the number of problems that are modeled with partial differential equations are diverse and these must be addressed numerically, so that the results obtained are more in line with reality. In this work, a comparison of the classical numerical methods such as: the finite difference method (FDM) and the finite element method (FEM), with a modern technique of discretization called the mimetic method (MIM), or mimetic finite difference method or compatible method, is approac...

The objective of the research was to develop an instrument for assessing the instructional design quality of virtual classrooms created by undergraduate students majoring in Mathematics Education for Secondary Education, with the aim of enhancing mathematics education at that level. The instrument was validated using a quantitative methodology, which included expert evaluations and internal consistency based on 237 assessments of 21 virtual classrooms. The instrument is based on criteria improvements from Spain's INTEF, evaluating didactic description, content quality, adaptability, interactivity, motivation, format and design, navigation, and accessibility of audiovisual content, with adaptations made for improvement. High validity and reliability were achieved. The instrument allows for the evaluation of didactic units in the Dominican mathematics curriculum at the secondary level. Thi...

Nematodes of the Anisakidae family were studied in Sardinella aurita and Mugil curema caught in Venezuelan coastal waters and sold in Cumaná’s main market in Sucre state, Venezuela. Fifty fish of each species were analyzed, examined, dissected and their internal cavities, cephalic organs, abdominal trunk and caudal regions wereinspected. They were also debrided, and muscles dissected in search of nematodes in their third larval stage (L3) through simple visual examination. Detected nematode parasites were mechanically extracted from the organs and tissues for identification and classification at the genus level. The M. curema species was the only fish found to be infected with parasites. Distinct parasitic species were observed in 48/50 (96%) of the M. curema specimens analyzed. The prevalence of helminths in these specimens included nematodes of the Anisakidae family, Acanthocephala ...