Papers by Sagrario Sanchez
DYNA INGENIERIA E INDUSTRIA, 2016
Pensamiento Matematico, 2012
Vivimos en un mundo de imágenes donde la Matemática es una ciencia desconocida por la sociedad qu... more Vivimos en un mundo de imágenes donde la Matemática es una ciencia desconocida por la sociedad quizás porque por lo general NO SE VE. Sin embargo las matemáticas forman parte de la cultura y se han desarrollado en paralelo al resto de los conocimientos humanos, influyendo en otras disciplinas, algunas de ellas de carácter visual. En este artículo se trata de plasmar la importancia y belleza de las matemáticas a través de imágenes utilizadas para fines muy distintos a la enseñanza de la misma.
Pensamiento Matematico, 2011
Computational Mathematics Theory Methods and Applications 2011 Isbn 978 1 60876 271 2 Pags 63 84, 2011
Actas De La International Conference on Education and New Learning Technologies International Conference on Education and New Learning Technologies 05 07 2010 07 07 2010 Barcelona Espana, 2010
In this work it is detailed a proposal that a group of lecturers belonging to the investigation g... more In this work it is detailed a proposal that a group of lecturers belonging to the investigation group of the Universidad Politécnica de Madrid (UPM) "Mathematics applied to Civil Engineering: MAIC" is accomplishing through a project of educative innovation financed by the UPM. It is proposed a "Mathematic Thinking Lecture Room" to be incorporated in the web pages of the universities. It is offered in it a series of activities which permit the training of the students in several transversal competences, most of them related to the mathematical thinking, and others that, although can seem far from it, it is possible to develop them together. The list of activities proposed for this `lecture room-web´ that can be increased with others along the beginning of it is: • Games, pastimes and mathematical puzzles.
Pensamiento Matematico, 2011
Actas Del Segundo Congreso Internacional De Matematicas En Ingenieria Y Arquitectura Segundo Congreso Internacional De Matematicas En Ingenieria Y Arquitectura 07 04 2008 11 04 2008 Madrid Espana, 2008
… València), 1, 2 y 3 de …, 2000
Localización: II Jornadas de Danza e Investigación: Burjassot (València), 1, 2 y 3 de diciembre d... more Localización: II Jornadas de Danza e Investigación: Burjassot (València), 1, 2 y 3 de diciembre de 2000/coord. por Federación Española de Asociaciones de Profesionales de la Danza, 2000, ISBN 84-607-2365-8, págs. 42-46
Journal of Chromatography A, 2013
The paper shows some tools (its interpretation and usefulness) to optimize a derivatization react... more The paper shows some tools (its interpretation and usefulness) to optimize a derivatization reaction and to more easily interpret and visualize the effect that some experimental factors exert on several analytical responses of interest when these responses are in conflict. The entire proposed procedure has been applied in the optimization of equilibrium/extraction temperature and extraction time in the acetylation reaction of 2,4,6-trichlorophenol; 2,3,4,6-tetrachlorophenol, pentachlorophenol and 2,4,6-tribromophenol as internal standard (IS) in presence of 2,4,6-trichloroanisole, 2,3,5,6-tetrachloroanisole, pentachloroanisole and 2,4,6-trichloroanisole-d5 as IS. The procedure relies on the second order advantage of PARAFAC (parallel factor analysis) that allows the unequivocal identification and quantification, mandatory according international regulations (in this paper the EU document SANCO/12495/2011), of the acetyl-chlorophenols and chloroanisoles that are determined by means of a HS-SPME-GC/MS automated device. The joint use of a PARAFAC decomposition and a Doehlert design provides the data to fit a response surface for each analyte. With the fitted surfaces, the overall desirability function and the Pareto-optimal front are used to describe the relation between the conditions of the derivatization reaction and the quantity extracted of each analyte. The visualization by using a parallel coordinates plot allows a deeper knowledge about the problem at hand as well as the wise selection of the conditions of the experimental factors for achieving specific goals about the responses. In the optimal experimental conditions (45°C and 25min) the determination by means of an automated HS-SPME-GC/MS system is carried out. By using the regression line fitted between calculated and true concentrations, it has been checked that the procedure has neither proportional nor constant bias. The decision limits, CCa, for probability a of false positive set to 0.05, vary between 0.221 and 0.420µgL(-1).
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Papers by Sagrario Sanchez