• Valorization of agri-food waste through the extraction of bioactive molecules. Prediction of their sunscreen action 

      Martínez Inda, Blanca Upna; Esparza Catalán, Irene Upna; Moler Cuiral, José Antonio Upna Orcid; Jiménez Moreno, Nerea Upna Orcid; Ancín Azpilicueta, Carmen Upna Orcid (Elsevier, 2023)   Artículo / Artikulua  OpenAccess
      The aim of this work was to identify the phenolic composition of 18 different vegetable residues and to determine the relationship between their phenolic compounds, antioxidant capacity and sun protection factor. For ...
    • Valorization of onion waste by obtaining extracts rich in phenolic compounds and feasibility of its therapeutic use on colon cancer 

      Paesa, Mónica; Pires Nogueira, Danielle; Velderrain-Rodríguez, Gustavo; Esparza Catalán, Irene Upna; Jiménez Moreno, Nerea Upna Orcid; Mendoza, Gracia; Osada, Jesús; Martín-Belloso, Olga; Rodríguez Yoldi, María Jesús; Ancín Azpilicueta, Carmen Upna Orcid (MDPI, 2022)   Artículo / Artikulua  OpenAccess
      In this study, the total phenolic content, the antioxidant and antiproliferative activities of onion waste extracts were characterized. Some phenolic compounds present in the extracts were also identified and quantified ...
    • Vanadium trapped by oblique nano-sheets to preserve the anisotropy in Co-V thin films at high temperature 

      Favieres Ruiz, Cristina Upna Orcid; Vergara Platero, José Upna Orcid; Magén, César; Ibarra, Manuel Ricardo; Madurga Pérez, Vicente Upna Orcid (Elsevier, 2022)   Artículo / Artikulua  OpenAccess
      In this study, oriented nano-sheets generated during the growth of cobalt-rich Co–V and Co–Zn thin films induced a large anisotropy in the magnetic and transport properties. The regular nano-sheets were tilted 52–54 deg. ...
    • Visible light activation of gold nanoparticles embedded into titanium dioxide surface in electrospun polymeric coatings 

      Sandúa Fernández, Xabier; Rivero Fuente, Pedro J. Upna Orcid; Calvopiña, Jonathan; Palacio, José F.; Rodríguez Trías, Rafael Upna Orcid (MDPI, 2024)   Artículo / Artikulua  OpenAccess
      This work reports the development of a functional photocatalytic coating based on a combination of polymeric electrospun fibres and nanoparticles that is intended to be activated in the visible light range. In this sense, ...
    • Volatile compounds other than CO2 emitted by different microorganisms promote distinct posttranscriptionally regulated responses in plants 

      García Gómez, Pablo; Almagro Zabalza, Goizeder Upna Orcid; Sánchez López, Ángela María; Bahaji, Abdellatif Upna Orcid; Ameztoy del Amo, Kinia Upna Orcid; Ricarte Bermejo, Adriana Upna Orcid; Baslam, Marouane Upna; López Gómez, Pedro Upna Orcid; Morán Juez, José Fernando Upna Orcid; Garrido Segovia, Julián José Upna Orcid; Muñoz Pérez, Francisco José Upna; Baroja Fernández, Edurne Upna Orcid; Pozueta Romero, Javier Upna Orcid (Wiley, 2019)   Artículo / Artikulua  OpenAccess
      A 'box-in-box' cocultivation system was used to investigate plant responses to microbial volatile compounds (VCs) and to evaluate the contributions of organic and inorganic VCs (VOCs and VICs, respectively) to these ...
    • Weak forms of unconditionality of bases in greedy approximation 

      Albiac Alesanco, Fernando José Upna Orcid; Ansorena, José L.; Berasategui, Miguel; Berná, Pablo M.; Lassalle, Silvia (Instytut Matematyczny, 2022)   Artículo / Artikulua  OpenAccess
      We study a new class of bases, weaker than quasi-greedy bases, which retain their unconditionality properties and can provide the same optimality for the thresholding greedy algorithm. We measure how far these bases are ...
    • Weightable quasi-metrics related to fuzzy sets 

      Campión Arrastia, María Jesús Upna Orcid; García Catalán, Olga Raquel Upna; Induráin Eraso, Esteban Upna Orcid; Valero, Óscar (Hacettepe University (Turquía), 2018)   Artículo / Artikulua  OpenAccess
      We show that the definition of a fuzzy set is directly related to the existence of a weightable quasi-metric on a universe. This relationship is also explored in terms of functional equations coming either from the membership ...
    • Wettability control on microstructured polypropylene surfaces by means of O2 plasma 

      Lafuente, Marta; Martínez, Elena; Pellejero, Ismael Upna Orcid; Artal, María del Carmen; Pina, María del Pilar (Wiley, 2017)   Artículo / Artikulua  OpenAccess
      Durable and wear resistant polypropylene surfaces with static contact angle (SCA) above 140° have been fabricated using standard photolithographic process and O2 plasma etching followed by thermal annealing at 100 °C. This ...
    • What kind of school organizational decisions serve to enhance sustainable personal and social growth? 

      Orón Semper, José Víctor; Lizasoain Iriso, María Inmaculada Upna Orcid; Abaurrea Larrayoz, Jaione Upna Orcid; González García, Concepción; Ayuga Téllez, Esperanza (MDPI, 2021)   Artículo / Artikulua  OpenAccess
      Sustainable decisions in education are those which pursue long-term achievements for students. In many cases, the principals of the schools are those who must make these decisions. In this paper we explore some of the ...
    • White and red Brazilian Sao Simao's kaolinite-TiO2 nanocomposites as catalysts for toluene photodegradation from aqueous solutions 

      Mora, Lucas D.; Trujillano, Raquel; Rives, Vicente; Pérez Bernal, María Elena; Korili, Sophia A. Upna Orcid; Gil Bravo, Antonio Upna Orcid; Faria, Emerson H. de (MDPI, 2019)   Artículo / Artikulua  OpenAccess
      The presence of volatile organic compounds in groundwater is a major concern when it is used as a drinking water source because many of these compounds can adversely affect human health. This work reports on the preparation ...
    • Zeolite synthesis from aluminum saline slag waste 

      Yoldi Sangüesa, María Upna Orcid; Fuentes Ordóñez, Edwin Gustavo Upna Orcid; Korili, Sophia A. Upna Orcid; Gil Bravo, Antonio Upna Orcid (Elsevier, 2020)   Artículo / Artikulua  OpenAccess
      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 ...
    • Zeolite synthesis from industrial wastes 

      Yoldi Sangüesa, María Upna Orcid; Fuentes Ordóñez, Edwin Gustavo Upna Orcid; Korili, Sophia A. Upna Orcid; Gil Bravo, Antonio Upna Orcid (Elsevier, 2019)   Artículo / Artikulua  OpenAccess
      Conventional synthesis conditions for each type of zeolite are tabulated and reported by the International Zeolite Association Structure Commission (IZA) and most of them are synthesized from commercial reagents, but they ...
    • Zirconia-supported 11-molybdovanadophosphoric acid catalysts: effect of the preparation method on their catalytic activity and selectivity 

      El Bakkali, Bouchra; Trautwein, Guido; Alcañiz Monge, Juan; Reinoso, Santiago Upna Orcid (Wiley, 2018)   Artículo / Artikulua  OpenAccess
      The oxidation of adamantane with hydrogen peroxide catalyzed by zirconia-supported 11-molybdovanadophosphoric acid is shown to be a suitable green route for the synthesis of adamantanol and adamantanone. This work evaluates ...
    • Zirconia-supported tungstophosphoric heteropolyacid as heterogeneous acid catalyst for biodiesel production 

      Alcañiz Monge, Juan; El Bakkali, Bouchra; Trautwein, Guido; Reinoso, Santiago Upna Orcid (Elsevier, 2018)   Artículo / Artikulua  OpenAccess
      A series of materials based on the immobilization of the 12-tungstophosphoric heteropolyacid over zirconia supports have been prepared and applied as heterogeneous acid catalysts in the esterification of palmitic acid with ...
    • Zn-Ti-Al layered double hydroxides synthesized from aluminum saline slag wastes as efficient drug adsorbents 

      Santamaría Arana, Leticia Upna Orcid; López Aizpún, María Upna; García Padial, Marcos; Vicente, Miguel Ángel; Korili, Sophia A. Upna Orcid; Gil Bravo, Antonio Upna Orcid (Elsevier, 2020)   Artículo / Artikulua  OpenAccess
      This work reports the synthesis of Zinc-Titanium-Aluminum (ZnTiAl) layered double hydroxides (LDH) with various proportions of Al[sbnd]Ti and a Zn/(Al[sbnd]Ti) molar ratio of 3:1 by the co-precipitation method. Two series, ...
    • α-Hydroxy ketones as masked ester donors in Brønsted base catalyzed conjugate additions to nitroalkenes 

      Olaizola, Iurre; Campano, Teresa E.; Iriarte, Igor; Vera, Silvia; Mielgo, Antonia; García Castillo, Jesús María Upna Orcid; Odriozola Ibarguren, José Manuel Upna Orcid; Oiarbide, Mikel; Palomo, Claudio (Wiley, 2018)   Artículo / Artikulua  OpenAccess
      The catalyst-controlled enantioselective direct addition reaction of enolizable esters and related carboxylic acid derivatives to p electrophiles remains a difficult synthetic transformation. In this study, the suitability ...

      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).
      Logo MinisterioLogo Fecyt