Search results for "value"
showing 10 items of 5321 documents
Parallel fictitious domain method for a non‐linear elliptic neumann boundary value problem
1999
Parallelization of the algebraic fictitious domain method is considered for solving Neumann boundary value problems with variable coefficients. The resulting method is applied to the parallel solution of the subsonic full potential flow problem which is linearized by the Newton method. Good scalability of the method is demonstrated on a Cray T3E distributed memory parallel computer using MPI in communication. Copyright © 1999 John Wiley & Sons, Ltd.
The History of Algebra in Mathematics Education
2006
In this chapter, we analyse key issues in algebra history from which some lessons can be extracted for the future of the teaching and learning of algebra. A comparative analysis of two types of pre-Vietan languages (before 16th century), and of the corresponding methods to solve problems, leads to conjecture the presence of didactic obstacles of an epistemological origin in the transition from arithmetic to algebraic thinking. This illustrates the value of historic and critical analysis for basic research design in mathematics education. Analysing the interrelationship between different evolution stages of the sign system of symbolic algebra and vernacular language supports the inference th…
Degrees of Characters and Values on Prime Order Elements
2008
Two irreducible characters of a finite group with the same value on prime elements have the same degree.
Some Problems on Homomorphisms and Real Function Algebras
2001
In this paper we solve a problem about the representation of all homomorphisms on a real function algebra as point evaluations and another two about function algebras in which homomorphisms are point evaluations on sequences in the algebra.
A Teaching proposal for the study of eigenvectors and eigenvalues
2017
[EN] In this work, we present a teaching proposal which emphasizes on visualization and physical applications in the study of eigenvectors and eigenvalues. These concepts are introduced using the notion of the moment of inertia of a rigid body and the GeoGebra software. The proposal was motivated after observing students¿ difficulties when treating eigenvectors and eigenvalues from a geometric point of view. It was designed following a particular sequence of activities with the schema: exploration, introduction of concepts, structuring of knowledge and application, and considering the three worlds of mathematical thinking provided by Tall: embodied, symbolic and formal.
El rol de la escuela en formación democrática: diseño de un cuestionario
2021
El papel de los centros educativos en la formación democrática es fundamental para construir sociedades más equitativas e inclusivas. La literatura destaca la falta de instrumentos de evaluación de estrategias de apoyo en este ámbito con propiedades psicométricas adecuadas. El objetivo del trabajo fue construir el cuestionario 'Convivencia y participación democrática en los centros educativos' a partir de la validación por jueces y análisis de fiabilidad mediante un estudio piloto. Respecto a los jueces, participaron 16 expertos en la temática y aspectos metodológicos y en cuanto al pilotaje, se contó con 136 directores de escuela. Se analizó la validez de contenido y fiabilidad del instrum…
Fiabilidad y validez de constructo de la traducción al valenciano/catalán del Cuestionario para la Evaluación del Síndrome de Quemarse por el trabajo…
2021
The aim of this study was to evaluate the reliability and construct validity of the Valencian/Catalonian version of the Spanish Burnout Inventory (SBI) in a sample of non-university teachers from the Valencia province (Spain). The sample consisted of 1359 teachers (67.2% were women). This instrument contains 20 items distributed into four dimensions: Enthusiasm toward the job (5 items), Psychological exhaustion (4 items), Indolence (6 items) and Guilt (5 items). The psychometric properties were examined through the following analyses: confirmatory factor analysis (CFA) and reliability (Cronbach’s alpha). All items achieved appropriate values for both statistical and psychometric parameters,…
Predicción de la lealtad de los usuarios de centros deportivos privados. Variables de gestión y bienestar subjetivo (Prediction of the loyalty of cos…
2019
Una de las finalidades más importantes en el contexto de los servicios deportivos es conocer cuáles son las intenciones futuras del usuario, por ello tratar de analizar la lealtad del usuario, se ha convertido en una de los objetivos principales dentro de la gestión del deporte, en concreto, los centros deportivos. Por ello, el objetivo es conocer que influencia tienen las demás variables de gestión y el bienestar subjetivo sobre esta dimensión que mide las intenciones futuras del usuario, como es la lealtad. La muestra de este trabajo estaba formada por 303 usuarios de la instalación deportiva (164 hombres, 139 mujeres). Para el análisis estadístico se utilizó con el programa SPSS v.23. To…
Notes on the Use of the Tables of Standard ISO 7730 for the Evaluation of the PMV Index
1996
Standard ISO 7730, which is also known as European Standard EN-ISO 7730, provides two alternative methods for the evaluation of the predicted mean vote (PMV) index: a calculation program and a set of tables. In order to use the tables, the operative temperature must be calculated beforehand. The impres sion is given from reading the standard that for a relative humidity of 50%, the two methods are equivalent, i.e. provide the same value for PMV, from the same initial values. In this paper, examples are given showing that the two methods are not equivalent. Differences between them are analysed and a proposal made to introduce an amendment in the next revision of the stan dard.
Gender and potential wage in Europe: a stochastic frontier approach
2011
PurposeThe purpose of this paper is to provide evidence concerning wage differentials and the existence of gender pay discrimination in France, Germany, Italy, Spain and the United Kingdom.Design/methodology/approachThe authors used the stochastic frontier approach as an alternative method to measure the relevance of gender discrimination. This methodology allows them to explain the differences between the potential and the observed wage that an individual could obtain, given his or her human capital endowment.FindingsThe authors found support for wage discrimination against women. The results show that a significant part of the gender wage gap in all the countries analysed is not attributa…