GeoNotes: A Location-based Information System for Public Spaces

The basic idea behind location-based information systems is to connect information pieces to positions in outdoor or indoor space. Through position technologies such as Global Positioning System (GPS), GSM positioning, Wireless LAN positioning o

Modos de acción y decisiones de los docentes. Un ejemplo en la enseñanza de la proporcionalidad

En esta investigación se pretende mostrar que el teorema de Pitágoras es un eje articulador transversal de saberes matemáticos, dado que posibilita el relacionar conceptualmente la matemática básica con la matemática avanzada, esto particularmente referido en los niveles educativos básico y medio superior. Se parte de la realización de un análisis histórico-epistemológico del teorema, para dar evidencias acerca de la relevancia de este saber sabio en un gran número de asignaturas de la matemática escolar

Ansiedad escolar y logro de los aprendizajes en comunicación de estudiantes de secundaria de una institución educativa en Ventanilla, 2022

Este trabajo tiene como objetivo general determinar la relación entre la ansiedad escolar y el logro de los aprendizajes en comunicación en estudiantes del 5to año de secundaria, en la cual se utilizó un diseño correlacional, de corte transversal y no experimental con una muestra de 120 participantes. El instrumento utilizado fue el Inventario de Ansiedad Escolar (IAES). Del mismo modo para la variable logros de aprendizaje de aprendizaje en comunicación, se utilizaron las notas obtenidas del registro auxiliar del primer bimestre. Respecto a los resultados obtenidos de la variable ansiedad escolar de 120 encuestado, el 8,3% de estos presentó niveles altos de ansiedad, el 64,2% un nivel medio y de la misma forma el 27,5% presenten niveles bajos, del cual se evidencia que el porcentaje más alto es el nivel medio. Por otro lado, la variable logros de aprendizaje en comunicación, se obtiene que el 2,5% de los estudiantes tuvieron logros correspondientes a “C”, el 67,5% obtuvo una “B”, el 30% obtuvo una “A” y ningún estudiante alcanzó la calificación de AD. Sin embargo, de acuerdo con los resultados obtenidos se determina que no existe relación significativa entre ambas variables

Probing the neutron star interior and the Equation of State of cold dense matter with the SKA

With an average density higher than the nuclear density, neutron stars (NS) provide a unique test-ground for nuclear physics, quantum chromodynamics (QCD), and nuclear superfluidity. Determination of the fundamental interactions that govern matter under such extreme conditions is one of the major unsolved problems of modern physics, and -- since it is impossible to replicate these conditions on Earth -- a major scientific motivation for SKA. The most stringent observational constraints come from measurements of NS bulk properties: each model for the microscopic behaviour of matter predicts a specific density-pressure relation (its `Equation of state', EOS). This generates a unique mass-radius relation which predicts a characteristic radius for a large range of masses and a maximum mass above which NS collapse to black holes. It also uniquely predicts other bulk quantities, like maximum spin frequency and moment of inertia. The SKA, in Phase 1 and particularly in Phase 2 will, thanks to the exquisite timing precision enabled by its raw sensitivity, and surveys that dramatically increase the number of sources: 1) Provide many more precise NS mass measurements (high mass NS measurements are particularly important for ruling out EOS models); 2) Allow the measurement of the NS moment of inertia in highly relativistic binaries such as the Double Pulsar; 3) Greatly increase the number of fast-spinning NS, with the potential discovery of spin frequencies above those allowed by some EOS models; 4) Improve our knowledge of new classes of binary pulsars such as black widows and redbacks (which may be massive as a class) through sensitive broad-band radio observations; and 5) Improve our understanding of dense matter superfluidity and the state of matter in the interior through the study of rotational glitches, provided that an ad-hoc campaign is developed.Comment: 22 pages, 8 figures, to be published in: "Advancing Astrophysics with the Square Kilometre Array", Proceedings of Science, PoS(AASKA14)04

Using Ordered Weighted Average for Weighted Averages Inflation

This paper presents the ordered weighted average weighted average inflation (OWAWAI) and some extensions using induced and heavy aggregation operators and presents the generalized operators and some of their families. The main advantage of these new formulations is that they can use two different sets of weighting vectors and generate new scenarios based on the reordering of the arguments with the weights. With this idea, it is possible to generate new approaches that under- or overestimate the results according to the knowledge and expertise of the decision-maker. The work presents an application of these new approaches in the analysis of the inflation in Chile, Colombia, and Argentina during 2017

The ordered weighted average inflation

This paper introduces the ordered weighted average inflation (OWAI). The OWAI operator aggregates the information of a set of inflations and provides a range of scenarios from the minimum and the maximum inflation. The advantage of this approach is that it can provide a flexible inflation formula that can be adapted to the specific characteristics of the enterprise, region, state or country (...