Search results for "solu"
showing 10 items of 7577 documents
Un esquema de codificación para el análisis de las resoluciones de los problemas de probabilidad condicional
2016
En este trabajo proponemos un esquema de variables para el análisis de las resoluciones de los problemas de probabilidad condicional. Se consideran tres variables principales: las variables del enfoque, del proceso y del producto o resultado, las cuales describen aquello que el resolutor hace desde que lee el enunciado del problema hasta que produce un resultado. Estas tres variables principales pueden ser explicadas por medio de no menos de 15 variables secundarias, la mayoría de ellas dicotómicas.
Influencia del conocimiento previo y de la estructura conceptual de los estudiantes de BUP en la resolución de problemas
2016
Con nuestro estudio pretendemos analizar la influencia que el conocimiento previo y el conocimiento conceptual adquirido tras la instrucción tienen en la resolución de problemas. Los participantes en el mismo fueron estudiantes de BUP valencianos.
Influence of quantities representation in solving word problems in the worksheet environment
2012
Hemos llevado a cabo una experimentación en la que pretendíamos observar las consecuencias de enseñar a resolver problemas de manera algebraica en el entorno de la hoja de cálculo a un grupo de estudiantes de primer curso de secundaria que no habían sido introducidos previamente en el mundo del álgebra. En este artículo ofreceremos ejemplos de fenómenos de anclaje en las formas de resolver propias de la aritmética por parte de algunos alumnos cuando resolvían en la hoja de cálculo. Mostraremos cómo estas resoluciones aritméticas se veían influidas por la enseñanza y el entorno dando lugar a: (1) la imposibilidad de introducir una fórmula en una celda que no hubiera sido etiquetada previamen…
High-resolution orthophoto map and digital surface models of the largest Argentine Islands (the Antarctic) from unmanned aerial vehicle photogrammetry
2020
This study presents the first high-resolution orthophoto maps and digital surface models (DSMs) of the largest Argentine Islands, West Antarctica. Aerial surveys with small unmanned aerial vehicle (UAV) were performed in Austral summer, 2018, taking 10,041 aerial photographs. Accuracy requirements were ensured using ground control points (GCPs). A resolution of 3.4 and 6.8 cm/px of orthomosaics and DSMs is reached on average, and the RMS reprojection error is 0.22 m on average. We report the morphometric parameters of surveyed islands and discuss issues related to accuracy and the usage of UAVs in polar conditions. This study demonstrates that small and low cost UAVs can be successfully use…
High Performance 3D PET Reconstruction Using Spherical Basis Functions on a Polar Grid
2011
Statistical iterative methods are a widely used method of image reconstruction in emission tomography. Traditionally, the image space is modelled as a combination of cubic voxels as a matter of simplicity. After reconstruction, images are routinely filtered to reduce statistical noise at the cost of spatial resolution degradation. An alternative to produce lower noise during reconstruction is to model the image space with spherical basis functions. These basis functions overlap in space producing a significantly large number of non-zero elements in the system response matrix (SRM) to store, which additionally leads to long reconstruction times. These two problems are partly overcome by expl…
Recycling of almond by-products for intestinal inflammation: improvement of physical-chemical, technological and biological characteristics of a drie…
2020
Background: Almond skins are rich in bioactive compounds that undergo oxidation/degradation phenomena and are poorly soluble in water, reducing in vivo absorption and bioavailability, factors that influence the pharmacological activity of an active product. We developed a dried acetonic almond skins extract/cyclodextrin complex to improve extract solubility, dissolution rate and biological activity. Methods: A lyophilized acetonic almond skin extract was produced. To optimize complex formulation, phase solubility studies and complex characterization (absorption studies, differential scanning calorimetry (DSC), morphology, solubility studies) were performed. To evaluate a possible use in hea…
Mediation for resolving family disputes
2016
Nowadays the understanding of the institute of marriage and its importance in the society has changed. Marriage is no longer assumed to be a commitment for a lifetime. As the principle of equality has replaced hierarchy as the guiding principle of family law it gave more grounds for family disputes and it became socially acceptable to leave marriages that are intolerable or merely unfulfilling. The aim of this article is to suggest an alternative dispute resolution method-mediation as a worthy option for resolving family conflicts.
Estrategias de resolución de problemas en la formación docente. Estudios de casos
2017
Resumen basado en el de la publicación Resumen en inglés La revisión de la literatura científica sobre el aprendizaje basado en problemas muestra divergencias en los planteamientos teóricos y metodológicos de sus principales autores, que acaban reduciendo esta herramienta a la asimilación de contenidos conceptuales a partir del cumplimiento exahustivo del currículo. Se defiende una interpretación del marco curricular para transformar los contenidos en problemas sociales, que respondan a las demandas ciudadanas del alumnado. La teoría de las representaciones sociales es el marco en el que se fundamenta el trabajo, con las ideas espontáneas para conocer los obstáculos que condicionan la praxi…
Implementation of the Comprehensive Approach. Leadership factors that influence the respect of Human Rights and Humanitarian Law
2020
The respect of Human Rights and International Humanitarian Law is linked to conflict resolution and recent experiences show that is not possible to prevent, manage or resolve a conflict only with military means, a Comprehensive Approach is essential and in this context leadership assumes a crucial role. The purpose of this study is to determine the leadership factors influencing the respect of Human Rights and International Humanitarian Law. The first research question focuses on the relevance of the Comprehensive Approach, while the remaining questions examine why it is so difficult to implement it and how its implementation could improve the respect for Human Rights and the cooperation be…
Towards the Learning Experience Technology Usability framework
2017
The availability of learning technology has increased over past decades; however, severe usability issues that cause adverse effects on the learning experience can be found in many available technologies. Learning solution usability is commonly evaluated by focusing on either technical or pedagogical usability and rarely both. This artificially separates the two important aspects of learning technology usability. This chapter provides a new framework for designing and evaluating learning solutions that synthesizes the above usability types to consider them a part of a complex and dynamic whole comprising of learning, technological design, content-related issues and context. The proposed Lea…