Browsing by Author "Echiburu, Mauricio A."

Now showing 1 - 3 of 3
  • Thumbnail Image
    Item
    Motion analysis of kinetic impact projectiles for physics education in real context
    (2020-04-16) Hernández, Carla V.; Echiburu, Mauricio A.; Humire, Fernando R.; Mosso, Edward F.
    The article presents a proposal to contextualize the study of movement in first courses of univer- sity physics, as a contribution to decision-making in situations of a social nature. For this, the case of the use of kinetic impact projectiles and the actual data provided by official sources is considered. This information is used in an object motion model describing the kinematic characteristics of a spherical projectile (a rubber bullet). For these purposes, a number Reynolds Re ≫ 1 was used, which allows applying a nonlinear motion equation to find the velocity and impact energy per unit area of projectile. Results and analysis of this model can generate an interesting discussion in the classroom about the need to build protocols for the use of kinetic impact projectiles, and the importance of using scientific knowledge in social conflicts.
  • Thumbnail Image
    Item
    Nuevas aproximaciones al test de Lawson: un análisis desde las teorías piagetianas y la neurociencia
    (2022-08) Echiburu, Mauricio A.; Ramirez, Chenda F.; Mora, Soraya P.
    Este estudio explora los niveles de razonamiento de alumnas y alumnos de primer año de educación superior. Para medir el razonamiento y detectar la etapa de desarrollo del pensamiento, se aplica la prueba de Lawson a 2131 estudiantes de dos universidades de Chile y de una universidad en Perú. Los resultados muestran que la mayoría de los estudiantes medidos de la Universidad de Piura y de la Universidad de la Serena presentan un nivel de pensamiento entre el desarrollo de transición temprana y pensamiento concreto, y la mayoría de los estudiantes de la Universidad Viña del Mar presentan pensamiento concreto. Siendo el mejor desempeño en el ítem de conservación de masa. También se observa una diferencia consistente entre hombres y mujeres en la conservación de volumen e identificación y control de variables. En conclusión, se evidencia una asociación entre neurociencia y los niveles de razonamiento planteados por Piaget, por lo que se recomienda su uso, principalmente en primer año.
  • Thumbnail Image
    Item
    The Latin American Giant Observatory (LAGO) capabilities for detecting Gamma Ray Bursts
    (2022-03-18) Sarmiento-Cano, Christian; Asorey, H.; Sacahui, J.R.; Otiniano, L.; Sidelnik, I.; LAGO Collaboration; Echiburu, Mauricio A.
    The Latin American Giant Observatory (LAGO) consists of a network of small water Cherenkov detectors (WCD) located at different sites in Latin America. It is a large aperture observatory sensitive to high energy gamma rays and due to its high duty cycle, LAGO constitutes a facility to detect transient events from the ground. Gamma Ray Bursts (GRBs) are of the brightest transients detected, with typical energies in their prompt phase ranging from keV to MeV, but theoretical models predict emissions at higher energies in the early times of the afterglow emission, and recently GRB190114C was the first GRB detected at TeV energies by the MAGIC experiment. In this work, we present the results of the expected sensitivity of LAGO for possible events like GRB190114C. We performed simulations in four of the high altitude LAGO sites projected to assess the sensitivity of the Observatory for this kind of events, using the ARTI toolkit developed by LAGO. We simulate photon showers with different spectral slopes and energies from 200 GeV to 1 TeV using the parameters presented by MAGIC for the recorded event. We also present maps of field of view of the studied sites with the observed GRBs by Fermi-GBM from 2019 to 2021.