Listar Artículos de revista DQA - KAS Aldizkari artikuluak por título
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Encuesta de satisfacción de un proyecto de mejora de calidad del servicio aragonés de salud
Bimbela Serrano, María Teresa; Bimbela Serrano, Fernando
; Bernués Vázquez, Luis (Universidad de Murcia, 2015)
Artículo / Artikulua 
Introducción: Según el informe de 2008 del Sistema Nacional de Salud, existe un 4,7% de los usuarios que opina que el sistema sanitario debería rehacerse por completo y casi un 27%, que es necesario introducir cambios ... -
Estrategias del alumnado de Educación Secundaria para estimar la densidad
Napal Fraile, María ; Echeverría Morrás, Jesús ; Zulet González, Amaia ; Santos Cervera, Leyre; Ibarra Murillo, Julia (Universitat Autònoma de BarcelonaUniversitat de València, 2018)
Artículo / Artikulua
La densidad, o concentración de materia, es un concepto muy relevante pero que genera muchas dificultades de comprensión. Para medir la competencia en la estimación de la densidad del alumnado de la ESO, se pasó un ... -
Fiber optic sensors based on hybrid phenyl-silica xerogel films to detect n-hexane: determination of the isosteric enthalpy of adsorption
Echeverría Morrás, Jesús ; Calleja, Ignacio; Moriones Jiménez, Paula ; Garrido Segovia, Julián José (Beilstein-Institut, 2017)
Artículo / Artikulua
We investigated the response of three fiber optic sensing elements prepared at pH 10 from phenyltriethoxysilane (PhTEOS) and tetraethylsilane (TEOS) mixtures with 30, 40, and 50% PhTEOS in the silicon precursor mixture. ... -
Hydrogen production from water electrolysis: current status and future trends
Ursúa Rubio, Alfredo ; Gandía Pascual, Luis ; Sanchis Gúrpide, Pablo (IEEE, 2012)
Artículo / Artikulua
This paper reviews water electrolysis technologies for hydrogen production and also surveys the state of the art of water electrolysis integration with renewable energies. First, attention is paid to the thermodynamic and ... -
Influence of the power supply on the energy efficiency of an alkaline water electrolyser
Ursúa Rubio, Alfredo ; Marroyo Palomo, Luis ; Gubía Villabona, Eugenio ; Gandía Pascual, Luis ; Diéguez Elizondo, Pedro ; Sanchis Gúrpide, Pablo (Elsevier, 2009)
Artículo / Artikulua
Electric energy consumption represents the greatest part of the cost of the hydrogen produced by water electrolysis. An effort is being carried out to reduce this electric consumption and improve the global efficiency ... -
Kinetics of the acid-catalyzed hydrolysis of tetraethoxysilane (TEOS) by 29Si NMR spectroscopy and mathematical modeling
Echeverría Morrás, Jesús ; Moriones Jiménez, Paula ; Arzamendi Manterola, María Cruz ; Garrido Segovia, Julián José ; Gil Idoate, María José ; Cornejo Ibergallartu, Alfonso ; Martínez Merino, Víctor (Springer, 2018)
Artículo / Artikulua
Tetraethoxysilane (TEOS) is widely used to synthesize siliceous material by the sol–gel process. However, there is still some disagreement about the nature of the limiting step in the hydrolysis and condensation reactions. ... -
Microwave-assisted pillaring of a montmorillonite with al-polycations in concentrated media
González, Beatriz; Pérez, Alba Helena; Trujillano, Raquel; Gil Bravo, Antonio ; Vicente, Miguel Ángel (MDPI, 2017)
Artículo / Artikulua
A montmorillonite has been intercalated with Al3+ polycations, using concentrated solutions and clay mineral dispersions. The reaction has been assisted by microwave radiation, yielding new intercalated solids and leading ... -
Mobility of heavy metals in soils amended with sewage sludge
Morera Luzán, María Teresa; Echeverría Morrás, Jesús ; Garrido Segovia, Julián José (Agricultural Institute of Canada, 2001)
Artículo / Artikulua
Sewage sludges added to arable land can improve soil fertility and physical properties. However, the concentrations of heavy metals commonly found in sludges limits their application to soil. The purpose of this paper is ... -
Navarra y China. Punto de partida
Sánchez Fernández, Carlos (Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2006)
Artículo / Artikulua
Es cierto, y no nos equivocamos al decir que China es diferente. Esta diferencia hace que insistamos una y otra vez en que China es, si no el lugar más difícil para hacer negocios, sí uno de los más difíciles. Pero, a ... -
Outstanding performance of rehydrated Mg-Al hydrotalcites as heterogeneous methanolysis catalysts for the synthesis of biodiesel
Navajas León, Alberto ; Campo Aranguren, Idoia; Moral Larrasoaña, Ainara ; Echave, Javier; Sanz Iturralde, Oihane; Montes, Mario; Odriozola, José Antonio; Arzamendi Manterola, María Cruz ; Gandía Pascual, Luis (Elsevier, 2018)
Artículo / Artikulua
There is still a need for active, selective and stable heterogeneous catalysts for the synthesis of biodiesel. In this work, magnesium-aluminium hydrotalcites with Mg/Al molar ratios within the 1.5–5 range were synthesized ... -
Preparation of Al/Fe-pillared clays: effect of the starting mineral
Muñoz Alvear, Helir Joseph; Blanco, Carolina; Gil Bravo, Antonio ; Vicente, Miguel Ángel; Galeano, Luis Alejandro (MDPI, 2017)
Artículo / Artikulua
Four natural clays were modified with mixed polyoxocations of Al/Fe for evaluating the effect of the physicochemical properties of the starting materials (chemical composition, abundance of expandable clay phases, cationic ... -
Rosa canina extracts have antiproliferative and antioxidant effects on caco-2 human colon cancer
Jiménez Alonso, Sandra; Gascón, Sonia; Luquin, Asunción ; Laguna, Mariano; Ancín Azpilicueta, Carmen ; Rodríguez Yoldi, María Jesús (Public Library of Science, 2016)
Artículo / Artikulua
The in vitro antiproliferative and antioxidant effects of different fractions of Rosa canina hips on human colon cancer cell lines (Caco-2) was studied. The compounds tested were total extract (fraction 1), vitamin C ... -
Therapeutic applications of rose hips from different rosa species
Mármol, Inés; Sánchez de Diego, Cristina; Jiménez Moreno, Nerea ; Ancín Azpilicueta, Carmen ; Rodríguez Yoldi, María Jesús (MDPI, 2017)
Artículo / Artikulua
Rosa species, rose hips, are widespread wild plants that have been traditionally used as medicinal compounds for the treatment of a wide variety of diseases. The therapeutic potential of these plants is based on its ...
