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Luminescent polystyrene films, a novel way to reduce styrofoam residues
(2015)
Polystyrene (PS) films doped with blue, yellow and red organic pigments have been deposited on glass and on commercial LED chips by spray pyrolysis using recycled PS as precursor, at deposition rates between 100 and 200 ...
MATHEMATICAL THINKING, CONCEPTUAL FRAMEWORKS: A REVIEW OF STRUCTURES FOR ANALYZING PROBLEM-SOLVING PROTOCOLS
(2010)
Recently, it has been considered important to reflect on the coincidences between the mathematical thinking of the School of Mathematics and the Discipline of Mathematics. It is widely accepted that a professional mathematician ...
Una Conjetura de Polya y Szego para el Tono Fundamental de Membranas Poligonales
(2010)
Polya y Szego conjeturaron que el n-polgono regular es capaz de producir el tono mas grave de entre los polgonos con n lados. La conjetura sigue abierta para todos los valores de n 5, despues de casi setenta a~nos de haber ...
RADICAL EXTENSIONS AND CROSSED HOMOMORPHISMS
(2001)
If Q./F is a Galois extension with Galois group G and /x(fi) denotes the group of roots of unity in Q, we use the group Z1{G,fi(Q)) of crossed homomorphisms to study radical extensions inside Q. Furthermore, we characterise ...
PROCESOS DE DISEÑO E IMPLEMENTACIÓN DE TAREAS DE APRENDIZAJE MATEMÁTICO CON ALTA DEMANDA COGNITIVA
(2011)
Resumen. Las tareas de aprendizaje son un elemento fundamental para que los estudiantes construyan conocimiento matemático. Sin embargo, una tarea por sí sola no basta para que los estudiantes logren un entendimiento ...
International Journal of Pure and Applied Mathematics
(2008)
I.M. Isaacs has proven a very interesting theorem concerning solvability of polynomials by real radicals. His result deals with an irreducible polynomial over the field of rational numbers which has a real radical element ...
FORMULANDO CONJETURAS MATEMÁTICAS EN ACTIVIDADES DE APRENDIZAJE ASISTIDAS CON TECNOLOGÍA
(2008)
¿Qué tipo de actividades deberían incluir los programas de desarrollo profesional para revisar y ampliar los conocimientos matemáticos y pedagógicos de los profesores de bachillerato? Proponemos una ruta para involucrar a ...
Mathematical thinking, conceptual frameworks: a review of structures for analyzing problema- solving protocols
(2010)
Recently, it has been considered important to reflect on the coincidences between the mathematical thinking of the School of Mathematics and the Discipline of Mathematics. It is widely accepted that a professional mathematician ...