Now showing items 1-20 of 141

    • Stability of phenolic compounds in grape stem extracts 

      Esparza Catalán, Irene Upna; Cimminelli, María José Upna; Moler Cuiral, José Antonio Upna; Jiménez Moreno, Nerea Upna; Ancín Azpilicueta, Carmen Upna (MDPI, 2020)   Artículo / Artikulua  OpenAccess
      Grape stem is rich in phenolic compounds, especially stilbenes. These antioxidants can be degraded during the storage of grape stem extracts for long periods of time. The aim of this work was to analyze the stability of ...
    • Using RGISTools to estimate water levels in reservoirs and lakes 

      Militino, Ana F. Upna; Montesino San Martín, Manuel Upna; Pérez Goya, Unai Upna; Ugarte Martínez, María Dolores Upna (MDPI, 2020)   Artículo / Artikulua  OpenAccess
      The combination of freely accessible satellite imagery from multiple programs improves the spatio-temporal coverage of remote sensing data, but it exhibits barriers regarding the variety of web services, file formats, and ...
    • Reducing SO₂ doses in red wines by using grape stem extracts as antioxidants 

      Esparza Catalán, Irene Upna; Martínez Inda, Blanca; Cimminelli, María José Upna; Moler Cuiral, José Antonio Upna; Jiménez Moreno, Nerea Upna; Ancín Azpilicueta, Carmen Upna (MDPI, 2020)   Artículo / Artikulua  OpenAccess
      SO₂ is a very important wine preservative. However, there are several drawbacks associated with the use of SO₂ in wine. The aim of this work is to evaluate the effect of the partial substitution of SO₂ in the Tempranillo ...
    • Optical fiber sensors based on microstructured optical fibers to detect gases and volatile organic compounds-A review 

      López Torres, Diego Upna; Elosúa Aguado, César Upna; Arregui San Martín, Francisco Javier (MDPI, 2020)   Artículo / Artikulua  OpenAccess
      Since the first publications related to microstructured optical fibers (MOFs), the development of optical fiber sensors (OFS) based on them has attracted the interest of many research groups because of the market niches ...
    • Implementation of an interactive environment with multilevel wireless links for distributed botanical garden in university campus 

      Klaina, Hicham; Picallo Guembe, Imanol Upna; López Iturri, Peio Upna; Astrain Escola, José Javier Upna; Falcone Lanas, Francisco Javier Upna (IEEE, 2020)   Artículo / Artikulua  OpenAccess
      In this contribution, an end to end system to enable user interaction with a distributed botanical university campus garden is designed, implemented and tested. The proposed system employs different wireless links to collect ...
    • Space-time analysis of ovarian cancer mortality rates by age groups in Spanish provinces (1989-2015) 

      Trandafir, Paula Camelia; Adin Urtasun, Aritz Upna; Ugarte Martínez, María Dolores Upna (BioMed Central, 2020)   Artículo / Artikulua  OpenAccess
      Background: Ovarian cancer is a silent and largely asymptomatic cancer, leading to late diagnosis and worse prognosis. The late-stage detection and low survival rates, makes the study of the space-time evolution of ovarian ...
    • Papel de las situaciones adidácticas en el aprendizaje matemático. Una mirada crítica desde el enfoque ontosemiótico 

      Godino, Juan D.; Burgos, María; Wilhelmi, Miguel R. (Universitat Autònoma de BarcelonaUniversitat de València, 2020)   Artículo / Artikulua  OpenAccess
      El postulado del aprendizaje por adaptación a un medio antagonista asumido por la teoría de situaciones didácticas en matemáticas se corresponde con el papel central que esta teoría atribuye a las situaciones adidácticas ...
    • Mathematical content on STEM activities 

      Lasa Oyarbide, Aitzol Upna; Abaurrea Larrayoz, Jaione; Iribas Pardo, Haritz Upna (Indonesian Mathematical SocietySriwijaya University (Indonesia), 2020)   Artículo / Artikulua  OpenAccess
      In this paper, a number of STEM educational proposals are systematically analyzed from the lens of mathematics education. An extensive innovation project was implemented during the 2019/2020 academic year in a pilot study ...
    • Univariate and multivariate spatio-temporal areal models to study crimes against women 

      Vicente Fuenzalida, Gonzalo (2020)   Tesis doctoral / Doktoretza tesia
      Spatio-temporal models for areal data have been extensively applied in epidemiology and public health to study geographical and temporal patterns of incidence or mortality of several diseases, mainly cancer. The utility ...
    • Deterministic propagation modeling for intelligent vehicle communication in smart cities 

      Granda, Fausto; López Iturri, Peio Upna; Aguirre Gallego, Erik Upna; Astrain Escola, José Javier Upna; Medrano Fernández, Pablo; Villadangos Alonso, Jesús Upna; Falcone Lanas, Francisco Javier Upna (MDPI, 2018)   Artículo / Artikulua  OpenAccess
      Vehicular Ad Hoc Networks (VANETs) are envisaged to be a critical building block of Smart Cities and Intelligent Transportation System (ITS) where applications for pollution, congestion reduction, vehicle mobility improvement, ...
    • A survey on the mathematical foundations of axiomatic entropy: representability and orderings 

      Campión Arrastia, María Jesús Upna; Gómez Polo, Cristina; Induráin Eraso, Esteban Upna; Raventós Pujol, Armajac Upna (MDPI, 2018)   Artículo / Artikulua  OpenAccess
      Different abstract versions of entropy, encountered in science, are interpreted in the light of numerical representations of several ordered structures, as total-preorders, interval-orders and semiorders. Intransitivities, ...
    • Two-level resolution of relative risk of dengue disease in a hyperendemic city of Colombia 

      Adin Urtasun, Aritz Upna; Martínez Bello, Daniel Adyro; López Quílez, Antonio; Ugarte Martínez, María Dolores Upna (Public Library of Science, 2018)   Artículo / Artikulua  OpenAccess
      Risk maps of dengue disease offer to the public health officers a tool to model disease risk in space and time. We analyzed the geographical distribution of relative incidence risk of dengue disease in a high incidence ...
    • Outcomes for design and learning when teenagers with autism codesign a serious game: a pilot study 

      Bossavit, Benoît Upna; Parsons, Sarah (Wiley, 2018)   Artículo / Artikulua  OpenAccess
      Digital educational games research tends to lack ecological validity by not adequately taking into account the views and perspectives of children and young people with autism spectrum disorders (ASD). This paper is a pilot ...
    • Partial representations of orderings 

      Bosi, Gianni; Estevan Muguerza, Asier Upna; Zuanon, Magali (World Scientific, 2018)   Artículo / Artikulua  OpenAccess
      In the present paper a new concept of representability is introduced, which can be applied to not total and also to intransitive relations (semiorders in particular). This idea tries to represent the orderings in the ...
    • An axiomatic approach to finite means 

      Campión Arrastia, María Jesús Upna; Candeal, Juan Carlos; García Catalán, Olga Raquel Upna; Giarlotta, Alfio; Induráin Eraso, Esteban Upna (Elsevier, 2018)   Artículo / Artikulua  OpenAccess
      In this paper we analyze the notion of a finite mean from an axiomatic point of view. We discuss several axiomatic alternatives, with the aim of establishing a universal definition reconciling all of them and exploring ...
    • Managing transportation externalities in the Pyrenees region: measuring the willingness-to-pay for road freight noise reduction using an experimental auction mechanism 

      Denant-Boemont, Laurent; Faulín Fajardo, Javier Upna; Hammiche, Sabrina; Serrano Hernández, Adrián Upna (Elsevier, 2018)   Artículo / Artikulua  OpenAccess
      The estimation of the noise impact caused by road freight transportation is critical to have acknowledgment of the ambiance pollution caused by road traffic crossing geographical areas containing important natural resources. ...
    • The swallowtail integral in the highly oscillatory region 

      Ferreira González, Chelo Upna; López García, José Luis Upna; Pérez Sinusía, Ester Upna (2020)   Artículo / Artikulua  OpenAccess
      We analyze the asymptotic behavior of the swallowtail integral R ∞ −∞ e i(t 5+xt3+yt2+zt)dt for large values of |y| and bounded values of |x| and |z|. We use the simpli ed saddle point method introduced in [López et ...
    • An inventory-routing problem with stochastic demand and stock-out: a solution and risk analysis using simheuristics 

      Onggo, Bhakti Stephan; Juan, Ángel Alejandro; Panadero, Javier; Corlu, Canan Gunes; Agustín Martín, Alba (IEEE, 2019)   Contribución a congreso / Biltzarrerako ekarpena
      Supply chain operations have become more complex. Hence, in order to optimise supply chain operations, we often need to simplify the optimisation problem in such a way that it can be solved efficiently using either exact ...
    • Real elements and p-nilpotence of finite groups 

      Ballester Bolinches, Adolfo; Esteban Romero, Ramón; Ezquerro Marín, Luis Miguel Upna (Aracne, 2016)   Artículo / Artikulua  OpenAccess
      Our first main result proves that every element of order 4 of a Sylow 2-subgroup S of a minimal non-2-nilpotent group G, is a real element of S. This allows to give a character-free proof of a theorem due to Isaacs and ...
    • LeviSense: a platform for the multisensory integration in levitating food and insights into its effect on flavour perception 

      Chi, Thanh Vi; Marzo Pérez, Asier Upna; Memoli, Gianluca; Maggioni, Emanuela; Ablart, Damien (Elsevier, 2020)   Artículo / Artikulua  OpenAccess
      Eating is one of the most multisensory experiences in everyday life. All of our five senses (i.e. taste, smell, vision, hearing and touch) are involved, even if we are not aware of it. However, while multisensory integration ...