Envíos recientes

  • Dual-wavelength single-longitudinal-mode erbium fiber laser for temperature measurements 

    Díaz Lucas, Silvia Upna; López-Amo Sáinz, Manuel Upna (SPIE, 2014)   Artículo / Artikulua  OpenAccess
    A dual-wavelength erbium fiber laser with single-longitudinal-mode characteristic is proposed and demonstrated. The system uses a 7-m-long highly doped erbium-doped fiber as the primary gain medium while two fiber Bragg ...
  • Uncertainties caused by source directivity in room-acoustic investigations 

    San Martín Murugarren, Ricardo Upna; Arana Burgui, Miguel Upna (Acoustical Society of America (ASA), 2008)   Artículo / Artikulua  OpenAccess
    Although deviations in the measurement of acoustic parameters should be lower than the subjectively perceivable change in the corresponding parameter measured, this study reflects that directionality of sound sources could ...
  • Cloning, nucleotide sequencing, and analysis of the AcrAB-TolC efflux pump of enterobacter cloacae and determination of its involvement in antibiotic resistance in a clinical isolate 

    Perez, A.; Canle, D.; Latasa Osta, Cristina Upna; Poza, M.; Beceiro, A.; del, Mar Tomas; Fernandez, A.; Mallo, S.; Perez, S.; Molina, F.; Villanueva, R.; Lasa Uzcudun, Íñigo Upna; Bou, Germán (American Society for Microbiology, 2007)   Artículo / Artikulua  OpenAccess
    Enterobacter cloacae is an emerging clinical pathogen that may be responsible for nosocomial infections. Management of these infections is often difficult, owing to the high frequency of strains that are resistant to ...
  • A chloroplast-derivedToxoplasma gondiiGRA4 antigen used as an oral vaccine protects against toxoplasmosis in mice 

    Yácono, María del L.; Farrán Blanch, Inmaculada Upna; Becher, Melina L.; Sander, Valeria; Sánchez, Vanesa R.; Martín, Valentina; Veramendi Charola, Jon Upna; Clemente, Marina (Wiley, 2012)   Artículo / Artikulua  OpenAccess
    The parasitic protozoan Toxoplasma gondii, the causal agent of toxoplasmosis, can infect most mammals and birds. In human medicine, T. gondii can cause complications in pregnant women and immunodeficient individuals, while ...
  • Overexpression of plastidial thioredoxin f leads to enhanced starch accumulation in tobacco leaves 

    Sanz Barrio, Ruth; Corral-Martinez, Patricia; Ancín Rípodas, María Upna; Segui-Simarro, Jose; Farrán Blanch, Inmaculada Upna (Wiley, 2013)   Artículo / Artikulua  OpenAccess
    Starch, the most abundant storage carbohydrate in plants, has been a major feedstock for first‐generation biofuels. Growing fuel demands require, however, that the starch yields of energy crops be improved. Leaf starch is ...
  • Nanofilms on a hollow core fiber 

    Matías Maestro, Ignacio Upna; Bravo Larrea, Javier Upna; Arregui San Martín, Francisco Javier Upna; Corres Sanz, Jesús María Upna (SPIE, 2006)   Artículo / Artikulua  OpenAccess
    We experimentally study the behavior of one multimode fiber–hollow core fiber–multimode fiber structure when nanofilms are deposited on it with the aim of developing practical evanescent field-based devices, such as sensors, ...
  • Tobacco plastidial thioredoxins as modulators of recombinant protein production in transgenic chloroplasts 

    Sanz Barrio, Ruth; Fernández San Millán, Alicia Upna; Corral-Martínez, Patricia; Seguí-Simarro, José M.; Farrán Blanch, Inmaculada Upna (Wiley, 2011)   Artículo / Artikulua  OpenAccess
    Thioredoxins (Trxs) are small ubiquitous disulphide proteins widely known to enhance expression and solubility of recombinant proteins in microbial expression systems. Given the common evolutionary heritage of chloroplasts ...
  • Enhancing the expression of starch synthase class IV results in increased levels of both transitory and long-term storage starch 

    Gámez-Arjona, Francisco M.; Li, Jun; Raynaud, Sandy; Baroja Fernández, Edurne Upna; Muñoz Pérez, Francisco José; Ovecka, Miroslav; Ragel, Paula; Bahaji, Abdellatif; Pozueta Romero, Javier Upna; Mérida, Ángel (Wiley, 2011)   Artículo / Artikulua  OpenAccess
    Starch is an important renewable raw material with an increasing number of applications. Several attempts have been made to obtain plants that produce modified versions of starch or higher starch yield. Most of the approaches ...
  • A diphenyldiselenide derivative induces autophagy via JNK in HTB-54 lung cancer cells 

    Díaz, Marta; González, Roncesvalles; Plano, Daniel; Palop, Juan Antonio; Sanmartín, Carmen; Encío Martínez, Ignacio Upna (Wiley, 2017)   Artículo / Artikulua  OpenAccess
    Symmetric aromatic diselenides are potential anticancer agents with strong cytotoxic activity. In this study, the in vitro anticancer activities of a novel series of diarylseleno derivatives from the diphenyldiselenide ...
  • Capturing global youth: mobile gaming in the U.S., Spain, and the Czech Republic 

    Okazaki, Shintaro; Skapa, Radoslav; Grande Esteban, Ildefonso Upna (Oxford University Press, 2008)   Artículo / Artikulua  OpenAccess
    We adapt the technology acceptance model (TAM) to examine the factors influencing mobile gaming adoption among “global youth.” Our model replaces usefulness with convenience, incorporating visual appeal and escapism as ...
  • High-density seedling expression system for the production of bioactive human cardiotrophin-1, a potential therapeutic cytokine, in transgenic tobacco chloroplasts 

    Farrán Blanch, Inmaculada Upna; Río-Manterola, Francisco; Íñiguez, María; Gárate, Sonia; Prieto, Jesús; Mingo Castel, Ángel (Wiley, 2008)   Artículo / Artikulua  OpenAccess
    Histidine‐tagged human cardiotrophin‐1 (hCT‐1), a recently discovered cytokine with excellent therapeutic potential, was expressed in tobacco chloroplasts under the transcriptional and translational control of two different ...
  • Human papillomavirus L1 protein expressed in tobacco chloroplasts self-assembles into virus-like particles that are highly immunogenic 

    Fernández San Millán, Alicia Upna; Martín Ortigosa, Susana; Hervás Stubbs, Sandra Upna; Corral-Martínez, Patricia; Seguí-Simarro, José M.; Gaétan, Julien; Coursaget, Pierre; Veramendi Charola, Jon Upna (Wiley, 2008)   Artículo / Artikulua  OpenAccess
    Cervical cancer is the second most prevalent cancer in women worldwide. It is linked to infection with human papillomavirus (HPV). As the virus cannot be propagated in culture, vaccines based on virus‐like particles have ...
  • Wideband unidirectional transmission with tunable sign-switchable refraction and deflection in nonsymmetric structures 

    Rodríguez Ulibarri, Pablo Upna; Beruete Díaz, Miguel Upna; Navarro Cía, Miguel Upna; Serebryannikov, Andriy E. (American Physical Society, 2013)   Artículo / Artikulua  OpenAccess
    A general theory of reciprocal unidirectional transmission with tunable sign-switchable refraction and deflection of outgoing wave in structures with broken spatial inversion symmetry is presented. Several coupling scenarios ...
  • Frozen mode from hybridized extraordinary transmission and Fabry-Perot resonances 

    Beruete Díaz, Miguel Upna; Rodríguez Ulibarri, Pablo Upna; Pacheco Peña, Víctor Upna; Navarro-Cía, M.; Serebryannikov, A. E. (American Physical Society, 2013)   Artículo / Artikulua  OpenAccess
    Frozen modes arising in stacked subwavelength hole arrays are studied in detail. Their origin is proved to be connected with the interaction between the extraordinary transmission resonance and the Fabry–Perot cavity mode. ...
  • Single-longitudinal-mode dual wavelength-switchable fiber laser based on superposed fiber bragg gratings 

    Pérez Herrera, Rosa Ana Upna; Rodriguez-Cobo, L.; Quintela, M. A.; Lopez Higuera, J. M.; López-Amo Sáinz, Manuel Upna (IEEE, 2015)   Artículo / Artikulua  OpenAccess
    n this work, a simple switchable dual-wavelength short-cavity fiber laser operating in a single-longitudinal-mode regime at room temperature and based on superposed fiber Bragg gratings is proposed and experimentally ...
  • Induction theorem analysis of resonant nanoparticles: design of a huygens source nanoparticle laser 

    Liberal Olleta, Íñigo; Ederra Urzainqui, Íñigo Upna; Gonzalo García, Ramón Upna; Ziolkowski, Richard W. (American Physical Society, 2014)   Artículo / Artikulua  OpenAccess
    We propose an advanced formulation of standard antenna theory for the basic investigation and design of resonant nanoparticles. This methodology is based on transforming the original scattering problem into a radiation ...
  • Magnetic transition in nanocrystalline soft magnetic alloys analyzed via ac inductive techniques 

    Gómez Polo, Cristina; Pérez de Landazábal Berganzo, José Ignacio; Recarte Callado, Vicente Upna; Vázquez, M.; Hernando, A. (American Physical Society, 2004)   Artículo / Artikulua  OpenAccess
    The magnetic transition in a FeSiBCuNb nanocrystalline alloy, associated with the decoupling of ferromagnetic crystallites around the Curie point of the residual amorphous matrix, is analyzed in this work through the ...
  • Lensing system and Fourier transformation using epsilon-near-zero metamaterials 

    Navarro Cía, Miguel Upna; Beruete Díaz, Miguel Upna; Sorolla Ayza, Mario Upna; Engheta, N. (American Physical Society, 2012)   Artículo / Artikulua  OpenAccess
    Metamaterials and metastructures with effective relative permittivity near zero exhibit unusual wave properties such as uniform phase distributions across such domains. Here we discuss the possibility of using ε-near-zero ...
  • Effect of dietary quercetin and sphingomyelin on intestinal nutrient absorption and animal growth 

    Barrenetxe, Jaione; Aranguren Garacochea, Patricia Upna; Grijalba, A.; Martínez-Peñuela, J. M.; Marzo Pérez, Florencio Upna; Urdaneta, Elena (Cambridge University Press, 2006)   Artículo / Artikulua  OpenAccess
    Research on cancer and other conditions has shown flavonoids and sphingolipids to be food components capable of exerting chemoprotective action. Nevertheless, little is known about their effects on healthy individuals and ...
  • Experimental Stark widths and shifts of Cr II spectral lines 

    Aguilera Andoaga, José Antonio Upna; Aragón Garbizu, Carlos Upna; Manrique, J. (Oxford University Press, 2013)   Artículo / Artikulua  OpenAccess
    Stark widths and shifts of Cr II lines with wavelengths in the range 2000–3500 Å have been determined by laser-induced breakdown spectroscopy. The spectra have been measured at different instants of the plasma ...

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