Recent Submissions

  • The effects of oral corrective feedback and language anxiety on pronunciation development 

    Luquin, María; Roothooft, Hanne Upna (Universidad de SevillaUNED, 2019)   Artículo / Artikulua  OpenAccess
    Si bien una gran cantidad de estudios han demostrado que la retroalimentación correctiva oral (RC) es efectiva para la adquisición de la gramática en un idioma extranjero, muy pocos se han centrado en el impacto de la RC ...
  • Psychosocial adjustment of in-home caregivers of family members with dementia and parkinson's disease: a comparative study 

    Lopes Dos Santos, María Cristina Upna; Navarta Sánchez, María Victoria; Moler Cuiral, José Antonio Upna; García Lautre, Ignacio Upna; Anaut Bravo, Sagrario Upna; Portillo, Mari Carmen (Hindawi, 2020)   Artículo / Artikulua  OpenAccess
    Neurodegenerative diseases such as Parkinson's and dementia are highly prevalent worldwide. People who suffer from these disorders often receive in-home care and assistance from family members, who must dedicate a considerable ...
  • Open repository for the evaluation of ransomware detection tools 

    Berrueta Irigoyen, Eduardo Upna; Morató Osés, Daniel Upna; Magaña Lizarrondo, Eduardo Upna; Izal Azcárate, Mikel Upna (IEEE, 2020)   Artículo / Artikulua  OpenAccess
    Crypto-ransomware is a type of malware that encrypts user files, deletes the original data, and asks for ransom to recover the hijacked documents. Several articles have presented detection techniques for this type of ...
  • Enhanced wireless channel estimation through parametric optimization of hybrid ray launching-collaborative filtering technique 

    Casino, Fran; López Iturri, Peio Upna; Aguirre Gallego, Erik Upna; Azpilicueta Fernández de las Heras, Leyre Upna; Falcone Lanas, Francisco Javier Upna; Solanas, Agusti (IEEE, 2020)   Artículo / Artikulua  OpenAccess
    In this paper, an enhancement of a hybrid simulation technique based on combining collaborative filtering with deterministic 3D ray launching algorithm is proposed. Our approach implements a new methodology of data depuration ...
  • Performance measures in dose-finding experiments 

    Flournoy, Nancy; Moler Cuiral, José Antonio Upna; Plo, Fernando (John Wiley & Sons, 2020)   Artículo / Artikulua  OpenAccess
    In the first phase of pharmaceutical development, and assuming that the probability of positive response increases with dose, the main statistical goal is to estimate a percentile of the dose–response function for a given ...
  • Unsupervised fuzzy measure learning for classifier ensembles from coalitions performance 

    Uriz Martín, Mikel Xabier; Paternain Dallo, Daniel Upna; Domínguez Catena, Iris; Bustince Sola, Humberto Upna; Galar Idoate, Mikel Upna (IEEE, 2020)   Artículo / Artikulua  OpenAccess
    In Machine Learning an ensemble refers to the combination of several classifiers with the objective of improving the performance of every one of its counterparts. To design an ensemble two main aspects must be considered: ...
  • Multivariate base rates of low scores on tests of learning and memory among Spanish speaking children 

    Benito Sánchez, Itziar; Ertl, Melissa M.; Ferrer Cascales, Rosario; Oltra Cucarella, Javier; Ibáñez Alfonso, Joaquín A.; Saracostti Schwartzman, Mahia; Soto Añari, Marcio; Cadavid Ruiz, Natalia; Rodríguez Lorenzana, Alberto; Rivera, Diego; Arango Lasprilla, Juan Carlos (Taylor & Francis, 2020)   Artículo / Artikulua
    To determine the prevalence of low scores on two neuropsychological tests commonly used to evaluate learning and memory in children. 6,030 healthy children from 10 countries in Latin America and Spain were administered ...
  • Prevalence of low scores on executive functions tests in a Spanish-speaking pediatric population from 10 Latin American countries and Spain 

    Benito Sánchez, Itziar; González, Isabel; Oliveras Rentas, Rafael E.; Ferrer Cascales, Rosario; Romero García, Ivonne; Restrepo Botero, Juan Carlos; Delgado Mejía, Iván Darío; Vergara Moragues, Esperanza; Rivera, Diego; Arango Lasprilla, Juan Carlos (Taylor & Francis, 2020)   Artículo / Artikulua
    Pediatric neuropsychologists and researchers commonly interpret a low score as a cognitive weakness. The purpose of the study was to determine the prevalence of low scores for three neuropsychological tests used to evaluate ...
  • Comparative performance of coke oven gas, hydrogen and methane in a spark ignition engine 

    Ortiz Imedio, Rafael; Ortiz, A.; Urroz Unzueta, José Carlos; Diéguez Elizondo, Pedro; Gorri, D.; Gandía Pascual, Luis; Ortiz, I. (Elsevier, 2020)   Artículo / Artikulua
    In this study, coke oven gas (COG), a by-product of coke manufacture with a high volumetric percentage of H2 and CH4, has been identified as auxiliary support and promising energy source in stationary internal combustion ...
  • Electric discharge detection and localization using a distributed optical fiber vibration sensor 

    Costa, Igor Brutkowski Vieira da; Weber, Guilherme Heim; Gomes, Danilo Fernandes; Galvão, José Rodolfo; Silva, Marco J. da; Pipa, Daniel R.; Ozcariz Celaya, Aritz Upna; Ruiz Zamarreño, Carlos Upna; Martelli, Cicero; Silva, Jean Carlos Cardozo da (Elsevier, 2020)   Artículo / Artikulua
    Partial discharges are a type of electric discharge that cause localized breakdowns in a small portion of an insulating material without forming a complete rupture. In high power electric machines as well as in transmission ...
  • Thermally induced structural transitions between single-crystalline states in the first hybrid compound combining Keggin-type clusters with metal-cyclam complexes: from two-dimensional covalent assemblies to discrete molecular species 

    Fernández Navarro, Leticia; Iturrospe, Amaia; Reinoso, Santiago Upna; Artetxe, Beñat; Ruiz Bilbao, Estíbaliz; San Felices, Leire; Gutiérrez Zorrilla, Juan M. (ACS, 2020)   Artículo / Artikulua
    A hydrothermal reaction between the monolacunary polyoxometalate [SiW11O39]8-, a copper(II) salt, and 1,4,8,11-tetraazacyclotetradecane (cyclam) affords the first example of a hybrid compound combining metal complexes of ...
  • Trend analysis in L-fuzzy contexts with absent values 

    Alcalde, Cristina; Burusco Juandeaburre, Ana Upna; Bustince Sola, Humberto Upna; Sesma Sara, Mikel Upna (University of Sistan and Baluchestan (Irán), 2020)   Artículo / Artikulua  OpenAccess
    Sometimes we have to work with L-fuzzy context sequences where one or more values are missing. These sequences can represent, among other things, the evolution in time of an L-fuzzy context. The studies of tendencies that ...
  • On admissible orders over closed subintervals of [0,1] 

    Santana, Fagner; Bedregal, Benjamin; Viana, Petrucio; Bustince Sola, Humberto Upna (Elsevier, 2020)   Artículo / Artikulua
    In this paper, we make some considerations about admissible orders on the set of closed subintervals of the unit interval I[0,1], i.e. linear orders that refine the product order on intervals. We propose a new way to ...
  • High-power filter design in waveguide technology: future generation of waveguide satellite filters in payloads handling increasing bit rates and numbers of channels 

    Arregui Padilla, Iván Upna; Teberio Berdún, Fernando Upna; Arnedo Gil, Israel Upna; Percaz Ciriza, Jon Mikel Upna; Martín Iglesias, Petronilo; Lopetegui Beregaña, José María Upna; Gómez Laso, Miguel Ángel Upna (IEEE, 2020)   Artículo / Artikulua
    To design a filter for a particular application, many issues must first be considered. Which technology will be the most convenient? What design technique will provide better results for a particular set of frequency ...
  • Zeolite synthesis from aluminum saline slag waste 

    Yoldi Sangüesa, María; Fuentes Ordóñez, Edwin Gustavo; Korili, Sophia A.; Gil Bravo, Antonio Upna (Elsevier, 2020)   Artículo / Artikulua
    This work describes the synthetic procedures developed to obtain zeolite X (NaX), zeolite A (LTA) and sodalite (SOD) using aluminum saline slag waste (AlSSW) as aluminum source in a two-step hydrothermal method involving ...
  • Coping with stress in emergency department physicians through improved patient-flow management 

    Cildoz Esquíroz, Marta Upna; Ibarra, Amaia; Mallor Giménez, Fermín Upna (Elsevier, 2020)   Artículo / Artikulua  OpenAccess
    This paper provides a method for the real-time monitoring of job stress in emergency department (ED) physicians. It is implemented in a Decision Support System (DSS) designed for patient-to-physician assignment after triage. ...
  • Bayesian inference in multivariate spatio-temporal areal models using INLA: analysis of gender-based violence in small areas 

    Vicente, G.; Goicoa Mangado, Tomás Upna; Ugarte Martínez, María Dolores Upna (Springer, 2020)   Artículo / Artikulua  OpenAccess
    Multivariate models for spatial count data are currently receiving attention in disease mapping to model two or more diseases jointly. They have been thoroughly studied from a theoretical point of view, but their use in ...
  • d-Choquet integrals: Choquet integrals based on dissimilarities 

    Bustince Sola, Humberto Upna; Mesiar, Radko; Fernández Fernández, Francisco Javier Upna; Galar Idoate, Mikel Upna; Paternain Dallo, Daniel Upna; Altalhi, A. H.; Pereira Dimuro, Graçaliz Upna; Bedregal, Benjamin; Takáč, Zdenko (Elsevier, 2020)   Artículo / Artikulua
    The paper introduces a new class of functions from [0,1]n to [0,n] called d-Choquet integrals. These functions are a generalization of the 'standard' Choquet integral obtained by replacing the difference in the definition ...
  • Influence of temperature and aging on the thermal contact resistance in thermoelectric devices 

    Rodríguez García, Antonio; Pérez Artieda, Miren Gurutze Upna; Beisti Antoñanzas, Irene; Astrain Ulibarrena, David Upna; Martínez Echeverri, Álvaro Upna (Springer, 2020)   Artículo / Artikulua
    During thermal design in the first phases development, thermoelectric systems, such as thermoelectric generators, the most important parameter affecting the performance is thermal resistance of the components. This paper ...
  • Changes in muscle power after usual care or early structured exercise intervention in acutely hospitalized older adults 

    López Sáez de Asteasu, Mikel Upna; Martínez Velilla, Nicolás; Zambom Ferraresi, Fabrício Upna; Ramírez Vélez, Robinson Upna; García Hermoso, Antonio; Cadore, Eduardo L.; Casas Herrero, Álvaro; Galbete Jiménez, Arkaitz Upna; Izquierdo Redín, Mikel Upna (Wiley, 2020)   Artículo / Artikulua  OpenAccess
    Background: A classic consequence of short-term bed rest in older adults is the significant loss in skeletal muscle mass and muscle strength that underlies the accelerated physical performance deficits. Structured exercise ...

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