Now showing items 1-20 of 3252

    • A 1.2-V current-mode RMS-to-DC converter based on a novel two-quadrant electronically simulated MOS translinear loop 

      Martincorena Arraiza, Maite; Cruz Blas, Carlos Aristóteles de la Upna Orcid; Algueta-Miguel, Jose M. Upna Orcid; López Martín, Antonio Upna Orcid (IEEE, 2020)   Artículo / Artikulua  OpenAccess
      A novel current-mode CMOS RMS-to-DC converter using translinear techniques is introduced. It is based on a squarer/divider cell that is implemented using an electronically simulated loop with a novel biasing scheme that ...
    • 101 Dothideomycetes genomes: a test case for predicting lifestyles and emergence of pathogens 

      Haridas, Sajeet; Castanera Andrés, Raúl Upna Orcid; Culley, D. E.; Daum, C.; Ramírez Nasto, Lucía Upna Orcid; Alfaro Sánchez, Manuel Upna Orcid (Westerdijk Fungal Biodiversity Institute, 2020)   Artículo / Artikulua  OpenAccess
      Dothideomycetes is the largest class of kingdom Fungi and comprises an incredible diversity of lifestyles, many of which have evolved multiple times. Plant pathogens represent a major ecological niche of the class ...
    • 119Sn Mössbauer spectroscopy for assessing the local stress and defect state towards the tuning of Ni-Mn-Sn alloys 

      Unzueta, Iraultza; López García, Javier Upna; Sánchez-Alarcos Gómez, Vicente Upna Orcid; Recarte Callado, Vicente Upna Orcid; Pérez de Landazábal Berganzo, José Ignacio Upna Orcid (AIP Publishing, 2017)   Artículo / Artikulua  OpenAccess
      The influence of defects and local stresses on the magnetic properties and martensitic transformation in Ni50Mn35Sn15 is studied at macroscopic and atomic scale levels. We show that both the structural and magnetic properties ...
    • 150 años de historia de la ética del Trabajo Social en España: periodización de sus valores éticos 

      Idareta Goldaracena, Francisco Upna Orcid; Úriz Pemán, María Jesús Upna Orcid; Viscarret Garro, Juan Jesús (Universidad Complutense de Madrid, 2017)   Artículo / Artikulua  OpenAccess
      Desde que iniciase su andadura como profesión en España, ha quedado constancia del compromiso ético de las y los profesionales del Trabajo Social en las respuestas que han venido ofreciendo en cada época a los conflictos ...
    • 250 km ultra long remote sensor system based on a fiber loop mirror interrogated by an OTDR 

      Bravo Acha, Mikel Upna Orcid; Baptista, José Manuel; Santos, José Luís; López-Amo Sáinz, Manuel Upna Orcid; Frazão, Orlando (Optical Society of America, 2011)   Artículo / Artikulua  OpenAccess
      A 253 km ultra long remote displacement sensor system based on a fiber loop mirror interrogated by a commercial OTDR is proposed and experimentally demonstrated. The use of a fiber loop mirror increases the signal to noise ...
    • 3-D-printed transmit-array antenna for broadband backhaul 5G links at V-band 

      Matos, Sérgio A.; Teixeira, Jorge P.; Costa, Jorge R.; Fernandes, Carlos A.; Río Bocio, Carlos del Upna Orcid (IEEE, 2020)   Artículo / Artikulua  OpenAccess
      The low cost and compactness of transmit-array antennas (TAs) make them attractive for 5G backhaul links. However, the TA advantage is less obvious when considering the broadband operation requirement. Two main factors ...
    • 300 GHz optoelectronic transmitter combining integrated photonics and electronic multipliers for wireless communication 

      Ali, Muhsin; Pérez Escudero, José Manuel Upna Orcid; Guzmán Martínez, Robinson Cruzoe; Lo, Mu Chieh; Ederra Urzainqui, Íñigo Upna Orcid; Gonzalo García, Ramón Upna Orcid; García Muñoz, Luis Enrique (MDPI, 2019)   Artículo / Artikulua  OpenAccess
      THz communications systems at carrier frequencies above 200 GHz are the key to enable next-generation mobile communication networks with 100 Gbit/s wireless data rates. One of the key questions is, which carrier frequency ...
    • 360 nW gate-driven ultra-low voltage CMOS linear transconductor with 1 MHz bandwidth and wide input range 

      Rico-Aniles, Héctor Daniel; Ramírez-Angulo, Jaime; López Martín, Antonio Upna; González Carvajal, Ramón (IEEE, 2020)   Artículo / Artikulua  OpenAccess
      A low voltage linear transconductor is introduced. The circuit is a pseudo differential architecture that operates with ±0.2V supplies and uses 900nA total biasing current. It employs a floating battery technique to achieve ...
    • A 3D ray launching time-frequency channel modeling approach for UWB ranging applications 

      Otim, Timothy; López Iturri, Peio Upna Orcid; Azpilicueta Fernández de las Heras, Leyre Upna Orcid; Bahillo, Alfonso; Falcone Lanas, Francisco Javier Upna Orcid (IEEE, 2020)   Artículo / Artikulua  OpenAccess
      Ultrawideband (UWB) has the ability to achieve decimetre level of ranging accuracy, hence, its wider usage nowadays in the field of positioning. In spite of the attractiveness of UWB, its performance is strongly dependent ...
    • 3D-printed 96 GHz bull’s-eye antenna with off-axis beaming 

      Beaskoetxea Gartzia, Unai Upna Orcid; Maci, Stefano; Navarro Cía, Miguel Upna Orcid; Beruete Díaz, Miguel Upna Orcid (IEEE, 2017)   Artículo / Artikulua  OpenAccess
      Reducing the profile, footprint and weight of antennas embarked on aircrafts, drones or satellites has been a long pursued objective. Here we tackle this issue by developing a millimeter-wave 96 GHz elliptical Bull’s-Eye ...
    • 46-km-long Raman amplified hybrid double-bus network with point and distributed Brillouin sensors 

      Fernández Vallejo, Montserrat Upna; Olier Aguado, David; Zornoza Indart, Ander; Pérez Herrera, Rosa Ana Upna Orcid; Díaz Lucas, Silvia Upna Orcid; Elosúa Aguado, César Upna Orcid; Bariáin Aisa, Cándido Upna Orcid; Loayssa Lara, Alayn Upna Orcid; López-Amo Sáinz, Manuel Upna Orcid (IEEE, 2012)   Artículo / Artikulua  OpenAccess
      We experimentally demonstrate a 46-km hybrid network that combine point and distributed Brillouin sensors. The proposed sensor network multiplexes low-cost intensity point sensors based on fiber-optic tapers, which are ...
    • 60 GHz single-layer slot-array antenna fed by groove gap waveguide 

      Ferrando Rocher, Miguel; Valero Nogueira, Alejandro; Herranz Herruzo, José I.; Teniente Vallinas, Jorge Upna Orcid (IEEE, 2019)   Artículo / Artikulua  OpenAccess
      A V-band single-layer low-loss slot-array antenna is presented in this letter. Radiating slots are backed by coaxial cavities, which are fed through a groove gap waveguide E-plane corporate feed network. Cavity resonances ...
    • 77-GHz high-gain bull’s-eye antenna with sinusoidal profile 

      Beaskoetxea Gartzia, Unai Upna Orcid; Pacheco-Peña, Víctor Upna Orcid; Orazbayev, Bakhtiyar Upna Orcid; Akalin, Tahsin; Maci, Stefano; Navarro Cía, Miguel Upna Orcid (IEEE, 2015)   Artículo / Artikulua  OpenAccess
      A high-gain Bull’s-Eye leaky-wave horn antenna working at 77 GHz with sinusoidal profile has been designed, fabricated, and experimentally measured. The influence of the number of periods on the gain and beamwidth is ...
    • 948 Merkatua. Hacia un cambio de modelo en el sector profesional de la música 

      Sáenz Abárzuza, Igor Upna Orcid (Gobierno de Navarra. Institución Príncipe de Viana, 2018)   Artículo / Artikulua  OpenAccess
      El artículo trata sobre el '948 Merkatua-Mercado de las Artes de Navarra', celebrado en Pamplona, que buscaba posicionarse como un mercado estratégico profesional de las artes. La primera edición se celebró en 2017 con 166 ...
    • Absence of nuclear p16 is a diagnostic and independent prognostic biomarker in squamous cell carcinoma of the cervix 

      Mendaza Lainez, Saioa Upna; Fernández Irigoyen, Joaquín; Santamaría, Enrique; Zudaire, Tamara; Guarch, Rosa; Guerrero Setas, David (MDPI, 2020)   Artículo / Artikulua  OpenAccess
      The tumor-suppressor protein p16 is paradoxically overexpressed in cervical cancer (CC). Despite its potential as a biomarker, its clinical value and the reasons for its failure in tumor suppression remain unclear. Our ...
    • El abuso de poder en trabajo social: evaluación de las propiedades métricas del Cuestionario de Violencia al Usuario (C-IVU) 

      Idareta Goldaracena, Francisco Upna Orcid (Col·legi Oficial de Treball Social de Catalunya, 2018)   Artículo / Artikulua  OpenAccess
      En la actualidad, apenas existen instrumentos validados que midan el abuso de poder que las y los profesionales de la intervención social pueden ejercer y ejercen sobre las personas usuarias. En ello radica la novedad y ...
    • An academic analysis with recommendations for water management and planning at the basin scale: a review of water planning in the Segura River Basin 

      Martínez Aldaya, Maite Upna Orcid; Custodio, Emilio; Llamas, Ramón; Fernández, María Feliciana; García, Jesús; Ródenas, Miguel Ángel (Elsevier, 2019)   Artículo / Artikulua
      Water resources management is particularly challenging in water-scarce basins, where low water availability is combined with a potential water demand exceeding the supply capacity of the natural system. This is the case ...
    • Accidente laboral. ACSOM una nueva orientación para gestión automática del riesgo 

      García Felipe, Ana Isabel; Conte Soriano, Juan Carlos; Rubio Aranda, Encarnación; Pérez Prados, Antonio Upna Orcid (Gobierno de Navarra, 2009)   Artículo / Artikulua  OpenAccess
      Fundamento. Analizar la accidentalidad laboral en todo tipo de empresas, a través de los riesgos que la provocan, teniendo en cuenta que el objetivo final es establecer una clasificación de riesgos prioritarios. ...
    • La acción socio-educativa en la Navarra rural. La Ribera. Estado de la cuestión 

      Soto Alfaro, Francisco Upna (Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2005)   Artículo / Artikulua  OpenAccess
    • Accumulating priority queues versus pure priority queues for managing patients in emergency departments 

      Cildoz Esquíroz, Marta Upna Orcid; Ibarra, Amaia; Mallor Giménez, Fermín Upna Orcid (Elsevier, 2019)   Artículo / Artikulua  OpenAccess
      Improving the quality of healthcare in emergency departments (EDs) is at the forefront of many hospital managers’ efforts, as they strive to plan and implement better patient flow strategies. In this paper, a new approach ...