102,192 research outputs found
Undécima evaluación de test editados en España
No full textBase de datos y sintaxis (en SPSS) que acompaña el artículo: Guilera, G. y Barrios, M. (2025). Undécima evaluación de test editados en España: Análisis comparativo del reporte de información y la calidad de los test antes y después de la implantación del proceso de evaluación de test, sometido a la revista Papeles del Psicólogo
Development and Validation of the Brief Math Anxiety Scale (BMAS) in University Students
No full textIn this space, you will find the Supplementary Material accompanying the article: Núñez-Peña, M. I., & Guilera, G. (2023). Development and validation of the Brief Math Anxiety Scale (BMAS) in university students. Psicothema, 35(4), 406-413. https://doi.org/10.7334/psicothema2022.43
Development and Validation of the Brief Math Anxiety Scale (BMAS) in University Students
No full textIn this space, you will find the Supplementary Material accompanying the article: Núñez-Peña, M. I., & Guilera, G. (2023). Development and validation of the Brief Math Anxiety Scale (BMAS) in university students. Psicothema, 35(4), 406-413. https://doi.org/10.7334/psicothema2022.43
Local structure of reaction intermediates probed by time-resolved x-ray absorption near edge structure spectroscopy
No full textA method for the analysis of time-resolved x-ray absorption near edge structure XANES spectrais proposed. It combines principal component analysis of the series of experimental spectra,multidimensional interpolation of theoretical XANES as a function of structural parameters, and abinitio XANES calculations. It allows to determine the values of structural parameters forintermediates of chemical reactions and the concentrations of different states as a function of time.This approach is tested using numerically generated data and its possibilities and limitations arediscussed. The application of this method to a reaction with methylrhenium trioxide catalyst insolution, for which experimental data were measured using stopped-flow energy-dispersive x-rayabsorption spectroscopy technique, is demonstrated. Possibilities and limitations of thisexperimental technique are also discussed
Energy Dispersive X-Ray Absorption Spectroscopy: Beamline Results and Opportunities
No full textID24 is the energy dispersive beamline of the European Synchrotron Radiation Facility dedicated to X‐ray Absorption Spectroscopy (XAS). Since 2000, a complete refurbishment program has started, including source upgrade, mirrors replacement, polychromator optimization and detection improvements. These have made possible the development of new applications in a variety of different fields, ranging from the measurement of tiny atom displacements to time resolved techniques, from measurements under extreme conditions to micro‐XAS studies
On the rich-club effect in dense and weighted networks
No full textFor many complex networks present in nature only a single instance, usually of large size, is available. Any measurement made on this single instance cannot be repeated on different realizations. In order to detect significant patterns in a real-world network it is therefore crucial to compare the measured results with a null model counterpart. Here we focus on dense and weighted networks, proposing a suitable null model and studying the behaviour of the degree correlations as measured by the rich-club coefficient. Our method solves an existing problem with the randomization of dense unweighted graphs, and at the same time represents a generalization of the rich-club coefficient to weighted networks which is complementary to other recently proposed ones. © 2009 EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg
Bibliographie Hilarion G. Petzold 1958 – 2009 mit Anhang als Einführung
No full textDieses Archiv enthält die Gesamtbibliographie der Werke des Autors nebst einiger Texte „Über H. G. Petzold“ im Schlussteil der Bibliographie sowie einen Anhang mit einer Einführung in die Architektur des Werkes in seinem wissenslogischen Aufbau als Ausarbeitung seines „Tree of Science Modells“ (2007).This archive contains the complete bibliography of the author and some texts about H. G. Petzold, moreover an epilogue with an introduction to the architecture of the works in its epistemological structure and composition and as an elaborations of Petzold’s „Tree of Science Modell (2007).https://www.fpi-publikation.de/polyloge/01-2009-petzold-h-g-gesamtbibliographie-h-g-petzold-1958-2009-updating-november2009/peerReviewedpublishedVersio
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Dispersive XAS on a High Brilliance Source: Highlights and Future Opportunities
No full textEnergy Dispersive X‐ray Absorption Spectroscopy is a now a well‐established method which has been applied to a broad range of applications. Ten years from the construction of beamline ID24 at the ESRF, the first dispersive XAS spectrometer using undulator radiation on a third generation source, we report an overview of recent results in very diverse fields of research, ranging from automotive catalysts to magnetism at extreme conditions. We also illustrate how pushing the instrument to its limits has opened new opportunities, such as an enhanced sensitivity to detection of tiny atomic displacements and the potential for micro‐probe redox and speciation imaging
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