Now showing items 1-20 of 92

    • Acoustophoretic volumetric displays using a fast-moving levitated particle 

      Fushimi, Tatsuki; Marzo Pérez, Asier Upna; Drinkwater, Bruce W.; Hill, Thomas L. (AIP Publishing, 2019)   Artículo / Artikulua  OpenAccess
      Displays have revolutionized the way we work and learn, and thus, the development of display technologies is of paramount importance. The possibility of a free-space display in which 3D graphics can be viewed from 360° ...
    • Affine construction methodology of aggregation functions 

      Roldán López de Hierro, Antonio F.; Roldán, Concepción; Bustince Sola, Humberto Upna; Fernández Fernández, Francisco Javier Upna; Rodríguez Martínez, Iosu; Fardoun, Habib; Lafuente López, Julio Upna (Elsevier, 2020)   Artículo / Artikulua
      Aggregation functions have attracted much attention in recent times because of its potential use in many areas such us data fusion and decision making. In practice, most of the aggregation functions that scientists use in ...
    • Analysis of singular one-dimensional linear boundary value problems using two-point Taylor expansions 

      Ferreira González, Chelo Upna; López García, José Luis Upna; Pérez Sinusía, Ester Upna (University of Szeged (Hungría), 2020)   Artículo / Artikulua  OpenAccess
      We consider the second-order linear differential equation (x2 − 1)y'' + f (x)y′ + g(x)y = h(x) in the interval (−1, 1) with initial conditions or boundary conditions (Dirichlet, Neumann or mixed Dirichlet–Neumann). The ...
    • Asymptotic greediness of the Haar system in the spaces Lp[0 , 1] , 1< p< ∞ 

      Albiac Alesanco, Fernando José Upna; Ansorena, José L.; Berná, Pablo M. (Springer, 2019)   Artículo / Artikulua  OpenAccess
      Our aim in this paper is to attain a sharp asymptotic estimate for the greedy constant Cg[H(p), Lp] of the (normalized) Haar system H(p) in Lp[0 , 1] for 1 < p < ∞. We will show that the super-democracy constant of H(p) ...
    • Automatic contactless injection, transportation, merging, and ejection of droplets with a multifocal point acoustic levitator 

      Andrade, Marco Aurélio Brizzotti; Camargo, Thales S. A.; Marzo Pérez, Asier Upna (AIP Publishing, 2018)   Artículo / Artikulua  OpenAccess
      We present an acoustic levitation system that automatically injects, transports, merges and ejects liquid droplets in mid-air. The system consists of a phased array operating at 40 kHz on top of a plane reflector. The phase ...
    • 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 ...
    • Building highly conditional almost greedy and quasi-greedy bases in Banach spaces 

      Albiac Alesanco, Fernando José Upna; Ansorena, José L.; Dilworth, S. J.; Kutzarova, Denka (Elsevier, 2019)   Artículo / Artikulua
      It is known that for a conditional quasi-greedy basis B in a Banach space X, the associated sequence (k(m)[B](m=1)(infinity) of its conditionality constants verifies the estimate k(m)[B] = O(log m) and that if the reverse ...
    • Canonical maximization of coherence: a novel tool for investigation of neuronal interactions between two datasets 

      Vidaurre, Carmen; Nolte, Guido; Vries, I. E. J. de; Gómez Fernández, Marisol Upna; Boonstra, Tjeerd W.; Müller, Klaus Robert; Villringer, Arno; Nikulin, Vadim V. (Elsevier, 2019)   Artículo / Artikulua
      Synchronization between oscillatory signals is considered to be one of the main mechanisms through which neuronal populations interact with each other. It is conventionally studied with mass-bivariate measures utilizing ...
    • CAP theorem: revision of its related consistency models 

      Muñoz Escoí, Francesc D.; Juan Marín, Rubén de; García Escrivá, José Ramón; González de Mendívil Moreno, José Ramón Upna; Bernabéu Aubán, José M. (Oxford University Press, 2019)   Artículo / Artikulua  OpenAccess
      The CAP theorem states that only two of these properties can be simultaneously guaranteed in a distributed service: (i) consistency, (ii) availability, and (iii) network partition tolerance. This theorem was stated and ...
    • Características y métodos estadísticos empleados en los artículos originales publicados en las revistas de salud pública en España 

      Martínez Baz, Iván Upna; Delfrade Osinaga, J. Upna; Etxeberria Andueza, Jaione Upna (Gobierno de Navarra, 2018)   Artículo / Artikulua  OpenAccess
      Background. To describe the characteristics and statistical methods used in the original articles published in Gaceta Sanitaria, Revista Española de Salud Pública y Anales del Sistema Sanitario de Navarra, the Spanish ...
    • CFM-BD: a distributed rule induction algorithm for building compact fuzzy models in Big Data classification problems 

      Elkano Ilintxeta, Mikel Upna; Sanz Delgado, José Antonio Upna; Barrenechea Tartas, Edurne Upna; Bustince Sola, Humberto Upna; Galar Idoate, Mikel Upna (IEEE, 2020)   Artículo / Artikulua  OpenAccess
      Interpretability has always been a major concern for fuzzy rule-based classifiers. The usage of human-readable models allows them to explain the reasoning behind their predictions and decisions. However, when it comes to ...
    • Circular RNA expression profile in blood according to ischemic stroke etiology 

      Ostolaza, Aiora; Blanco Luquin, Idoia; Urdánoz Casado, Amaya; Rubio, Idoya; Labarga, Alberto (BioMed Central, 2020)   Artículo / Artikulua  OpenAccess
      Background: The discovery of novel biomarkers of stroke etiology would be most helpful in management of acute ischemic stroke patients. Recently, circular RNAs (circRNAs) have been proposed as candidate biomarkers of ...
    • Conditional quasi-greedy bases in non-superreflexive Banach spaces 

      Albiac Alesanco, Fernando José Upna; Ansorena, José L.; Wojtaszczyk, Przemyslaw (Springer, 2019)   Artículo / Artikulua  OpenAccess
      For a conditional quasi-greedy basis B in a Banach space, the associated conditionality constants km[B] verify the estimate km[B]=O(logm). Answering a question raised by Temlyakov, Yang, and Ye, several authors have studied ...
    • Contactless pick-and-place of millimetric objects using inverted near-field acoustic levitation 

      Andrade, Marco Aurélio Brizzotti; Ramos, Tiago S.; Adamowski, Julio C.; Marzo Pérez, Asier Upna (American Institute of Physics, 2020)   Artículo / Artikulua
      We model and realize an ultrasonic contactless pick-and-place device capable of picking, self-centering, self-orienting, translating, and releasing flat millimetric objects. The device is an ultrasonic Langevin transducer ...
    • Convergent expansions of the confluent hypergeometric functions in terms of elementary functions 

      Bujanda Cirauqui, Blanca Upna; López García, José Luis Upna; Pagola Martínez, Pedro Jesús Upna (American Mathematical Society, 2018)   Artículo / Artikulua  OpenAccess
      We consider the confluent hypergeometric function M(a, b; z) for z ∈ C and Rb >Ra > 0, and the confluent hypergeometric function U(a, b; z) for b ∈ C, Ra > 0, and Rz > 0. We derive two convergent expansions of M(a, b; z); ...
    • 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. ...
    • Corrigendum to “Oscillatory motions in restricted N-body problems” [J. Differential Equations 265 (2018) 779–803] 

      Alvarez-Ramírez, Martha; Rodríguez García, Antonio Upna; Palacián Subiela, Jesús Francisco Upna; Yanguas Sayas, Patricia Upna (Elsevier, 2019)   Artículo / Artikulua
      At the beginning of paper [1] there is an error that spreads along the rest of the work and the conclusions are not correct in their present form. Precisely, in Section 2, page 783, there is a contradiction related to the ...
    • Corticomuscular interactions during different movement periods in a multi-joint compound movement 

      Kenville, Rouven; Maudrich, Tom; Vidaurre, Carmen; Maudrich, Dennis; Villringer, Arno; Nikulin, Vadim V.; Ragert, Patrick (Nature Research, 2020)   Artículo / Artikulua  OpenAccess
      While much is known about motor control during simple movements, corticomuscular communication profiles during compound movement control remain largely unexplored. Here, we aimed at examining frequency band related ...
    • Crime against women in India: unveiling spatial patterns and temporal trends of dowry deaths in the districts of Uttar Pradesh 

      Vicente, G.; Goicoa Mangado, Tomás Upna; Fernández Rasines, Paloma Upna; Ugarte Martínez, María Dolores Upna (Wiley, 2020)   Artículo / Artikulua  OpenAccess
      Crimes against women in India have been continuously increasing lately as reported by the National Crime Records Bureau. Gender-based violence has become a serious issue to such an extent that it has been catalogued as a ...
    • Curve-based monotonicity: a generalization of directional monotonicity 

      Roldán López de Hierro, Antonio F.; Sesma Sara, Mikel Upna; Špirková, Jana; Lafuente López, Julio Upna; Pradera, Ana; Mesiar, Radko; Bustince Sola, Humberto Upna (Taylor & Francis, 2019)   Artículo / Artikulua  OpenAccess
      In this work we propose a generalization of the notion of directional monotonicity. Instead of considering increasingness or decreasingness along rays, we allow more general paths defined by curves in the n-dimensional ...