Now showing items 1-20 of 388

    • 25 years of continuous sewage sludge application vs. mineral fertilizers on a calcareous soil affected pH but not soil carbonates 

      De Soto García, I. S. Upna Orcid; Zamanian, Kazem; Urmeneta Martín-Calero, Henar; Enrique Martín, Alberto Upna Orcid; Virto Quecedo, Íñigo Upna Orcid (Frontiers Media, 2022)   Artículo / Artikulua  OpenAccess
      Inorganic and organic fertilizers have been widely used to maintain crop yields. However, several studies have demonstrated that the dissolution of carbonates in agricultural soils by the acidification induced by N-fertilizers ...
    • Abstract homogeneous functions and consistently influenced/disturbed multi-expert decision making 

      Santiago, Regivan; Bedregal, Benjamin Upna Orcid; Pereira Dimuro, Graçaliz Upna Orcid; Fernández Fernández, Francisco Javier Upna Orcid; Bustince Sola, Humberto Upna Orcid; Fardoun, Habib (IEEE, 2021)   Artículo / Artikulua  OpenAccess
      In this paper we propose a new generalization for the notion of homogeneous functions. We show some properties and how it appears in some scenarios. Finally we show how this generalization can be used in order to provide ...
    • Achieving transfer from mathematics learning 

      Orón, José Víctor; Lizasoain Iriso, María Inmaculada Upna Orcid (MDPI, 2023)   Artículo / Artikulua  OpenAccess
      The question of transfer is a special challenge in mathematics teaching because the wide range and fragmentation of the curricula have in many cases fostered an instrumental understanding, which makes transfer difficult ...
    • Acoustic levitation in mid-air: recent advances, challenges, and future perspectives 

      Brizzotti Andrade, Marco Aurélio; Marzo Pérez, Asier Upna Orcid; Adamowski, Julio C. (American Institute of Physics, 2020)   Artículo / Artikulua  OpenAccess
      Mid-air acoustic levitation is becoming a powerful tool to suspend and manipulate millimetric objects. Because of its unique characteristics, acoustic levitation is suitable to trap a wide variety of materials such as ...
    • Acoustic lock: position and orientation trapping of non-spherical sub-wavelength particles in mid-air using a single-axis acoustic levitator 

      Cox, L; Croxford, A; Drinkwater, Bruce W.; Marzo Pérez, Asier Upna Orcid (American Institute of Physics, 2018)   Artículo / Artikulua  OpenAccess
      We demonstrate acoustic trapping in both position and orientation of a non-spherical particle of sub-wavelength size in mid-air. To do so, we multiplex in time a pseudo-one-dimensional vertical standing wave and a ...
    • Acoustic virtual vortices with tunable orbital angular momentum for trapping of Mie particles 

      Marzo Pérez, Asier Upna Orcid; Caleap, Mihai; Drinkwater, Bruce W. (American Physical Society, 2018)   Artículo / Artikulua  OpenAccess
      Acoustic vortices can transfer angular momentum and trap particles. Here, we show that particles trapped in airborne acoustic vortices orbit at high speeds, leading to dynamic instability and ejection. We demonstrate stable ...
    • Acoustophoretic volumetric displays using a fast-moving levitated particle 

      Fushimi, Tatsuki; Marzo Pérez, Asier Upna Orcid; 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° ...
    • Acuity-based rotational patient-to-physician assignment in an emergency department using electronic health records in triage 

      Cildoz Esquíroz, Marta Upna Orcid; Ibarra Bolt, Amaya; Mallor Giménez, Fermín Upna Orcid (SAGE, 2023)   Artículo / Artikulua  OpenAccess
      Emergency department (ED) operational metrics generated by a new acuity-based rotational patient-to-physician assignment (ARPA) algorithm are compared with those obtained with a simple rotational patient assignment (SRPA) ...
    • Addendum to "uniqueness of unconditional basis of infinite direct sums of quasi-Banach spaces" 

      Albiac Alesanco, Fernando José Upna Orcid; Ansorena, José L. (Springer, 2022)   Artículo / Artikulua  OpenAccess
      After [Uniqueness of unconditional basis of infinite direct sums of quasi-Banach spaces, Positivity 26 (2022), Paper no. 35] was published, we realized that Theorem 4.2 therein, when combined with work of Casazza and Kalton ...
    • Admissible orders on fuzzy numbers 

      Zumelzu, Nicolás; Bedregal, Benjamin Upna Orcid; Mansilla, Edmundo; Bustince Sola, Humberto Upna Orcid; Díaz, Roberto (IEEE, 2022)   Artículo / Artikulua  OpenAccess
      From the more than two hundred partial orders for fuzzy numbers proposed in the literature, only a few are total. In this paper, we introduce the notion of admissible order for fuzzy numbers equipped with a partial order, ...
    • Admissible OWA operators for fuzzy numbers 

      García-Zamora, Diego; Cruz, Anderson; Neres, Fernando; Santiago, Regivan; Roldán López de Hierro, Antonio Francisco; Paiva, Rui; Dimuro, Graçaliz P.; Martínez López, Luis; Bedregal, Benjamin Upna Orcid; Bustince Sola, Humberto Upna Orcid (Elsevier, 2024)   Artículo / Artikulua  OpenAccess
      Ordered Weighted Averaging (OWA) operators are some of the most widely used aggregation functions in classic literature, but their application to fuzzy numbers has been limited due to the complexity of defining a total ...
    • Affine construction methodology of aggregation functions 

      Roldán López de Hierro, Antonio Francisco; Roldán, Concepción; Bustince Sola, Humberto Upna Orcid; Fernández Fernández, Francisco Javier Upna Orcid; Rodríguez Martínez, Iosu Upna Orcid; Fardoun, Habib; Lafuente López, Julio Upna Orcid (Elsevier, 2020)   Artículo / Artikulua  OpenAccess
      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 ...
    • Aggregation of individual rankings through fusion functions: criticism and optimality analysis 

      Bustince Sola, Humberto Upna Orcid; Bedregal, Benjamin Upna Orcid; Campión Arrastia, María Jesús Upna Orcid; Silva, Ivanoska da; Fernández Fernández, Francisco Javier Upna Orcid; Induráin Eraso, Esteban Upna Orcid; Raventós Pujol, Armajac Upna Orcid; Santiago, Regivan (IEEE, 2020)   Artículo / Artikulua  OpenAccess
      Throughout this paper, our main idea is to analyze from a theoretical and normative point of view different methods to aggregate individual rankings. To do so, first we introduce the concept of a general mean on an abstract ...
    • Aggregator to electric vehicle LoRaWAN based communication analysis in vehicle-to-grid systems in smart cities 

      Klaina, Hicham Upna; Picallo Guembe, Imanol Upna Orcid; López Iturri, Peio Upna Orcid; Astrain Escola, José Javier Upna Orcid; Azpilicueta Fernández de las Heras, Leyre Upna Orcid; Falcone Lanas, Francisco Javier Upna Orcid (IEEE, 2020)   Artículo / Artikulua  OpenAccess
      Recently, there has been growing attention to the power grid management due to the increasing concerns on global warming. With the advancement in electric vehicles (EV) industry and the evolution in batteries, EVs become ...
    • Alleviating confounding in spatio-temporal areal models with an application on crimes against women in India 

      Adin Urtasun, Aritz Upna Orcid; Goicoa Mangado, Tomás Upna Orcid; Hodges, James S.; Schnell, Patrick M.; Ugarte Martínez, María Dolores Upna Orcid (SAGE Publications, 2021)   Artículo / Artikulua  OpenAccess
      Assessing associations between a response of interest and a set of covariates in spatial areal models is the leitmotiv of ecological regression. However, the presence of spatially correlated random effects can mask or even ...
    • Analysis and application of an overlapped FEM-BEM for wave propagation in unbounded and heterogeneous media 

      Domínguez Baguena, Víctor Upna Orcid; Ganesh, M. (Elsevier, 2022)   Artículo / Artikulua  OpenAccess
      An overlapped continuous model framework, for the Helmholtz wave propagation problem in unbounded regions comprising bounded heterogeneous media, was recently introduced and analyzed by the authors (2020) [10]. The continuous ...
    • Analysis of bright bolides recorded between October and November 2022 by the Southwestern Europe Meteor Network 

      Madiedo, J. M.; Ortiz, J. L.; Izquierdo, J.; Santos-Sanz, P.; Aceituno, J.; Guindos, E. de; Yanguas Sayas, Patricia Upna Orcid; Palacián Subiela, Jesús Francisco Upna Orcid; San Segundo, A.; Ávila, D.; Tosar, B.; Gómez-Hernández, A.; Gómez-Martínez, Juan; García, Antonio; Aimee, A. I. (MeteorNews, 2023)   Artículo / Artikulua  OpenAccess
      We present in this work the analysis of some of the bright fireballs spotted in the framework of the Southwestern Europe Meteor Network (SWEMN) between October and November 2022. They have been observed from the Iberian ...
    • Analysis of didactical trajectories in teaching and learning mathematics: overcoming extreme objectivist and constructivist positions 

      Godino, Juan D.; Rivas, Hernán; Burgos, María; Wilhelmi, Miguel R. Upna Orcid (Modestum, 2019)   Artículo / Artikulua  OpenAccess
      There is currently a consensus in mathematics education that favors constructivist instructional models, which are based on the inquiry of knowledge by students. There are, however, different views that consider objectivist ...
    • Analysis of remarkable bolides observed between June and July 2022 in the framework of the Southwestern EuropeMeteor Network 

      Madiedo, J. M.; Ortiz, J. L.; Izquierdo, J.; Santos-Sanz, P.; Aceituno, J.; Guindos, E. de; Yanguas Sayas, Patricia Upna Orcid; Palacián Subiela, Jesús Francisco Upna Orcid; San Segundo, A.; Ávila, D.; Tosar, B.; Gómez-Hernández, A.; Gómez-Martínez, J.; García, A.; Aimee, A. I. (MeteorNews, 2022)   Artículo / Artikulua  OpenAccess
      Some of the bright bolides spotted in the framework of the Southwestern Europe Meteor Network from June to July 2022 are discussed here. These were observed from Spain. Their absolute magnitude ranges from –6 to –11. ...
    • Analysis of singular one-dimensional linear boundary value problems using two-point Taylor expansions 

      Ferreira González, Chelo Upna; López García, José Luis Upna Orcid; Pérez Sinusía, Ester Upna Orcid (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 ...

      El Repositorio ha recibido la ayuda de la Fundación Española para la Ciencia y la Tecnología para la realización de actividades en el ámbito del fomento de la investigación científica de excelencia, en la Línea 2. Repositorios institucionales (convocatoria 2020-2021).
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