Recent Submissions

  • Funções de agregação baseadas em integral de Choquet aplicadas em redimensionalização de imagens 

    Bueno, Jéssica C. S.; Dias, Camila A.; Dimuro, Graçaliz P.; Borges, Eduardo N.; Botelho, Silvia S. C.; Mattos, Viviane L. D. de; Bustince Sola, Humberto Upna (Universidade Passo Fundo, 2019)   Artículo / Artikulua  OpenAccess
    The increasing data volume, coupled with the high complexity of these data, has generated the need to develop increasingly efficient knowledge extraction techniques, both in computational cost and precision. Most of the ...
  • Experimental investigation of the particle oscillation instability in a single-axis acoustic levitator 

    Andrade, Marco Aurélio Brizzotti; Polychronopoulos, Spyros; Memoli, Gianluca; Marzo Pérez, Asier Upna (AIP Publishing, 2019)   Artículo / Artikulua  OpenAccess
    Single-axis acoustic levitators are employed in biomedicine, chemistry and physics experiments due to their ability to trap in mid-air objects of a wide range of materials and sizes. Although this type of levitator has ...
  • Desarrollo del razonamiento algebraico elemental mediante tareas de recuento con patrones 

    Gaita, Rosa; Wilhelmi, Miguel R. Upna (UNESP - Universidade Estadual Paulista (Brasil), 2019)   Artículo / Artikulua  OpenAccess
    Las tareas de recuento con patrones son un contexto privilegiado para el desarrollo del razonamiento algebraico. La complejidad ontosemiótica de las tareas permite identificar procesos de estudio para hacer progresar el ...
  • An introduction to the spatio-temporal analysis of satellite remote sensing data for geostatisticians 

    Militino, Ana F. Upna; Ugarte Martínez, María Dolores Upna; Pérez Goya, Unai Upna (Springer International Publishing, 2018)   Capítulos de libro / Liburuen kapituluak  OpenAccess
    Satellite remote sensing data have become available in meteorology, agriculture, forestry, geology, regional planning, hydrology or natural environment sciences since several decades ago, because satellites provide routinely ...
  • On a particular class of Meijer's G functions appearing in fractional calculus 

    Karp D.B.; López García, José Luis (Academic Publications, 2018)   Artículo / Artikulua  OpenAccess
    In this paper we investigate the Meijer G-function G p+1,p+1 p,1 which, for certain parameter values, represents the Riemann-Liouville fractional integral of the Meijer-Nørlund function G p,p. p,0 The properties of this ...
  • The interval-valued Choquet integral based on admissible permutations 

    Paternain Dallo, Daniel Upna; Miguel Turullols, Laura de Upna; Ochoa Lezaun, Gustavo Upna; Lizasoain Iriso, María Inmaculada Upna; Mesiar, Radko; Bustince Sola, Humberto Upna (IEEE, 2018)   Artículo / Artikulua
    Aggregation or fusion of interval data is not a trivial task, since the necessity of arranging data arises in many aggregation functions, such as OWA operators or the Choquet integral. Some arranging procedures have been ...
  • Efficient SSP low-storage Runge-Kutta methods 

    Roldán Marrodán, Teodoro Upna; Higueras Sanz, Inmaculada Upna (2019)   Artículo / Artikulua  OpenAccess
    In this paper we study the efficiency of Strong Stability Preserving (SSP) Runge-Kutta methods that can be implemented with a low number of registers using their Shu-Osher representation. SSP methods have been studied ...
  • Strong stability preserving properties of composition Runge-Kutta schemes 

    Higueras Sanz, Inmaculada Upna; Roldán Marrodán, Teodoro Upna (Springer, 2019)   Artículo / Artikulua
    In this paper Strong Stability Preserving (SSP) properties of Runge Kutta methods obtained by com- posing k different schemes with different step sizes are studied. The SSP coefficient of the composition method is obtained ...
  • Características y métodos estadísticos empleados en los artículos originales publicados en las revistas de salud pública en España 

    Martínez Baz, Iván; 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 ...
  • Decision making with horizontal cooperation and environmental criteria for transportation: optimization and simulation models for the vehicle routing problem and the facility location problem 

    Serrano Hernández, Adrián (2018)   Tesis doctoral / Doktoretza tesia  OpenAccess
    Transportation is a major contributor to the development of the world economy and, at the same time, a major contributor to air pollution and global warming. Additionally, the unstoppable increase of competition as consequence ...
  • Periodic solutions, KAM tori and bifurcations in a cosmology-inspired potential 

    Palacián Subiela, Jesús Francisco Upna; Vidal Díaz, Claudio; Vidarte, Jhon; Yanguas Sayas, Patricia Upna (IOP Publishing, 2019)   Artículo / Artikulua
    A family of perturbed Hamiltonians H = 1/2 (x^2 + X^2) − 1/2 (y^2 + Y^2)+1/2 (z^2 + Z^2) + 2[ (x^4 + y^4 + z^4) + (x^2 y^2 + x^2 z^2 + y^2 z^2)] in 1: −1:1 resonance depending on two real parameters is considered. We ...
  • 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 ...
  • Generalized forms of monotonicity in the data aggregation framework 

    Sesma Sara, Mikel Upna (2019)   Tesis doctoral / Doktoretza tesia
    El proceso de agregación trata el problema de combinar una colección de valores numéricos en un único valor que los represente y las funciones encargadas de esta operación se denominan funciones de agregación. A las ...
  • Simheuristic algorithms for the sustainable freight transport problem 

    Reyes-Rubiano, Lorena Silvana (2019)   Tesis doctoral / Doktoretza tesia  OpenAccess
    The sustainable freight transport entails the design of the distribution plans with the least negative impacts. On one hand, this distribution problem relies on deter-mining the routes to visit a set of customers, which ...
  • Stability and estimates near elliptic equilibrium points in hamiltonian systems and applications 

    Cárcamo Díaz, Daniela Jacqueline (2019)   Tesis doctoral / Doktoretza tesia  OpenAccess
    En esta tesis se estudia la estabilidad no lineal de equilibrios elípticos de sistemas hamiltonianos autónomos con n grados de libertad. Se supone que la parte cuadrática es diagonalizable y que puede haber o no resonancias. ...
  • Tailoring the structural and magnetic properties of Co-Zn nanosized ferrites for hyperthermia applications 

    Gómez Polo, Cristina; Recarte Callado, Vicente Upna; Cervera Gabalda, Laura María; Beato López, Juan Jesús; López García, Javier; Rodríguez Velamazán, José Alberto; Ugarte Martínez, María Dolores Upna; Mendonça, E. C.; Duque, J. G. S. (Elsevier, 2018)   Artículo / Artikulua
    A comparative study of the magnetic properties (magnetic moment, magnetocrystalline anisotropy) and hyperthermia response in Co-Zn spinel nanoparticles is presented. The CoxZn1-xFe2O4 nanoparticles (x = 1, 0.5, 0.4, 0.3, ...
  • 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 (AIP Publishing, 2018)   Artículo / Artikulua
    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 ...
  • Temperature and water availability during maturation affect the cytokinins and auxins profile of radiata pine somatic embryos 

    Moncaleán, Paloma; García Mendiguren, Olatz; Novák, Ondrej; Strnad,Miroslav; Goicoa Mangado, Tomás Upna; Ugarte Martínez, María Dolores Upna; Montalbán, Itziar A. (Frontiers Media, 2018)   Artículo / Artikulua  OpenAccess
    Somatic embryogenesis (SE) provides us a potent biotechnological tool to manipulate the physical and chemical conditions (water availability) along the process and to study their effect in the final success in terms of ...
  • Design exploration prior to blade multi-disciplinary optimisation 

    Echeverría, Fernando; Mallor Giménez, Fermín Upna; San-Miguel, Unai (IOP Publishing, 2018)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
    The approach of designing blades as a multi-disciplinary, holistic optimisation implies significant challenges owing to the high complexity of the involved factors such as aerodynamics, elasticity, controller and loads. ...
  • Epidemiology of non-steroidal anti-inflammatory drugs consumption in Spain. The MCC-Spain study 

    Gómez Acebo, Inés; Dierssen Sotos, Trinidad; Pedro, María de; Pérez Gómez, Beatriz; Castaño Vinyals, Gemma; Fernández Villa, Tania; Palazuelos Calderón, Camilo; Amiano, Pilar; Etxeberria Andueza, Jaione Upna (BMC, 2018)   Artículo / Artikulua  OpenAccess
    Background: Non-steroidal anti-inflammatory drugs (NSAIDs) are widely used despite their risk of gastrointestinal bleeding or cardiovascular events. We report the profile of people taking NSAIDs in Spain, and we include ...

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