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La creación de materiales docentes en inglés para contenidos relacionados con género: una propuesta para la evaluación de competencias transversales

  • Santaemilia Ruiz, José
  • Clavel Arroitia, Begoña
  • Maruenda Bataller, Sergio
Transformar el proceso de enseñanza-aprendizaje en una experiencia compartida, constructiva y visible es una prioridad para los grupos AngloTIC y GenText en la Universitat de València. Nuestros esfuerzos intentan asumir los retos educativos y metodológicos que supone el EEES. Desde esta perspectiva, nuestro trabajo consiste en el diseño de una serie de objetos de aprendizaje que implementan actividades orientadas al desarrollo de competencias generales y específicas, coherentes con los resultados de aprendizaje definidos en el plan de estudios y con un seguimiento efectivo. En este trabajo, hemos presentado algunas unidades didácticas que intentan compensar la falta de contenidos de género en el recientemente implantado grado en Estudios Ingleses. Todos los estudiantes que participaron en estas unidades completaron un cuestionario de aceptación. Las preguntas abarcaban la adecuación de los objetivos, el tema, las actividades, la metodología, etc. El análisis de los resultados ha sido apuntado aquí, y ciertamente nos proporcionará la información necesaria para afinar estas unidades. Hemos presentado también una propuesta inicial (aunque ya puesta en práctica) para la descripción de competencias y su evaluación. Ha sido diseñada para contribuir de forma modesta al debate actual y constituye una prioridad como forma de traducir los resultados de nuestra investigación en principios educativos y sociales. Este trabajo obtuvo el Premi de Gènere i Docencia en l'Educació Superior Olimpia Arozena Torres, Juny 2011., Premi de Gènere i Docència en l'Educació Superior Olimpia Arozena Torres, Juny 2011
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Development and analysis of a model based on chirped fiber Bragg gratings employed for cracks characterization in materials

  • Yandy, A. M.
  • Duchowicz, R.
  • Russo, N. A.
  • Cruz, J. L.
  • Andrés, M. V.
In this work a model was developed that allows to understand the behavior of a chirped fiber Bragg grating for the detection and characterization of cracks in materials. In addition to the amplitude response, we show that the group delay of the grating provides useful information for the characterization of the crack. The position of the crack can be determined thanks to the linear chirp of the grating that fixes a correlation between the spatial position and both, the wavelength and the group delay. However, our analysis shows that this simple approach has a source of error, which can be overcome if a controllable external strain can be applied to the embedded grating, additional to the strain generated by the embedding process. Thus, the width of the crack can be also estimated. The effect of the appearance of a crack on the grating generates simple o multiple transmission peaks that are analyzed considering the behavior of a Fabry–Perot fiber cavity. This simple model was experimentally tested and preliminary results were in good agreement with the simulations.
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An approach to the measurement of the nonlinear refractive index of very short lengths of optical fibers

  • Rivera-Pérez, E.
  • Carrascosa, A.
  • Díez, A.
  • Alcusa-Sáez, E. P.
  • Andrés, M. V.
A method for the measurement of the nonlinear-refractive index coefficient in single-mode optical fibers is presented. It takes advantage of the high sensitivity of the acousto-optic interaction effect in optical fibers to the fiber properties. Direct measurement of the nonlinear-refractive index change resulting from cross-phase modulation between a probe and a pump signal is obtained from the fiber's acousto-optic interaction performance. It is a non-interferometric method in which a very short length of fiber (<0.25 m) is required.
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Actively mode-locked all-fiber laser by 5 MHz transmittance modulation of an acousto-optic tunable bandpass filter

  • Bello-Jiménez, M.
  • Hernández-Escobar, E.
  • Camarillo-Avilés, A.
  • Pottiez, O.
  • Díez, A.
  • Andrés, M. V.
Active mode-locking of an all-fiber ring laser by transmittance modulation of an in-fiber acousto-optic tunable bandpass filter (AOTBF) is reported. Cavity loss modulation is achieved by full acousto-optic mode re-coupling cycle induced by standing flexural acoustic waves. The modulator permits the implementation of 28 dB of nonresonant light suppression, 1.4 nm of modulation bandwidth, 74% of modulation depth and 4.11 dB of optical loss in a 72.5 cm-long all-fiber configuration. The effects of the modulated AOTBF on the laser performance are investigated. Transform-limited optical pulses of 8.8 ps temporal width and 6.0 W peak power were obtained at 4.87 MHz repetition rate.
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Tunable dual-wavelength operation of an all- fiber thulium-doped fiber laser based on tunable fiber Bragg gratings

  • Ibarra-Escamilla, B.
  • Durán-Sánchez, M.
  • Álvarez-Tamayo, R. I.
  • Posada-Ramírez, B.
  • Prieto-Cortés, P.
  • Kuzin, E. A.
  • Cruz, J. L.
  • Andrés, M. V.
Tunable dual-wavelength emission of a Tm-doped fiber laser based on two fiber Bragg gratings(FBGs) is experimentally demonstrated. By using two FBGs with central wavelengths at 2069.30 and 2069.44 nm, stable dual-wavelength laser generation in the 2 μm wavelength region is achieved by adjusting the differential loss of the two wavelengths in the laser cavity. Strain applied on the FBG allows independent tuning of the simultaneously generated wavelengths with separation between the laser lines in a range from 0.54 to 9 nm. The laser has output power fluctuations less than 0.093% for an output power of 77.3 mW.
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Q switching and mode locking pulse generation from an all-fiber ring laser by intermodal acousto-optic bandpass modulation

  • Hernández-Escobar, E.
  • Bello-Jiménez, M.
  • López-Estopier, R.
  • Camarillo-Avilés, A.
  • Pottiez, O.
  • García-Ramírez, M. A.
  • Durán-Sánchez, M.
  • Ibarra-Escamilla, B.
  • Andrés, M. V.
Q-switched and mode-locked (QML) pulse generation from an all-fiber ring laser based on intermodal acousto-optic bandpass modulation is reported. The modulator relies on full-acousto-optic mode re-coupling cycle induced by a standing flexural acoustic wave, with a transmission response that is controlled by amplitude modulation of the acoustic wave signal. The Q factor of the cavity is controlled by a rectangular pulse wave with variable frequency and duty cycle, whereas mode locking is achieved by amplitude modulation derived from a standing flexural acoustic wave. The best QML pulses were obtained at 0.5 kHz repetition rate, with a pump power of 549.2 mW, at the optical wavelength of 1568.2 nm. A maximum overall energy of 2.14 µJ at an average output power of 1.07 mW was achieved, corresponding to a burst of mode-locked sub-pulses of 100 ps pulse duration within a QML envelope of 3.5 µs.
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Dataset: Sexual reproductive phenology of a submerged macrophyte community and related environmental variables

  • Calero Cervera, Sara
  • Rodrigo Alacreu, María Antonia
Esta base de datos contiene tres años de datos sobre la fenología reproductiva de una comunidad de macrófitos sumergidos formada por cinco especies (Chara hispida, Chara aspera, Nitella hyalina, Stuckenia pectinata y Utricularia australis) que crece en una charca mediterránea (somera y de agua salobre). La primera hoja de cálculo contiene todos los metadatos. La segunda hoja muestra las variables ambientales y fenológicas de la comunidad. Puede encontrarse más información sobre la adquisición, el análisis y la discusión de estos datos en el manuscrito: Calero, S. & Rodrigo, M.A. Reproductive phenology of submerged macrophytes: a tracker of year-to-year environmental variations. Journal of Vegetation Science., This dataset contains three years of data about the sexual reproductive phenology of a submerged macrophyte community formed by five species (Chara hispida, Chara aspera, Nitella hyalina, Stuckenia pectinata and Utricularia australis) growing in a Mediterranean brackish shallow pond. The first sheet contains all metadata. The second and last sheet, environmental and phenological variables from the community are shown. More information about the acquisition, analyses and discussion of these data is available in the manuscript: Calero, S., & Rodrigo, M.A. Reproductive phenology of submerged macrophytes: a tracker of year-to-year environmental variations. Journal of Vegetation Science.
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Broadband tuning of a long-cavity all-fiber mode locked Thulium-doped fiber laser using an acousto-optic bandpass filter

  • Hernández-Escobar, E.
  • Bello-Jiménez, M.
  • Camarillo-Avilés, A.
  • López-Estopier, R.
  • Pottiez, O.
  • Hernández-Arriaga, M. V.
  • Durán-Sánchez, M.
  • Ibarra-Escamilla, B.
  • Andrés, M. V.
A long-cavity passively mode-locked thulium-doped all-fiber laser is reported incorporating a tapered acousto-optic tunable bandpass filter (AOTBF). The operation of the AOTBF relies on the intermodal coupling between core and cladding modes when a flexural acoustic wave propagates along an 80-microm tapered fiber. The filter works in transmission and exhibits a 3-dB bandwidth of 9.02 nm with an insertion loss of 3.4 dB. The laser supports ultrashort pulse generation at a low repetition rate of 784.93 kHz. Optical pulses with 2.43 nm of optical bandwidth and 2.1 ps pulse duration were obtained in a broad tuning range from 1824.77 to 1905.16 nm.
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Single-mode Bragg gratings in tapered few-modes and multimode fibers

  • Herrera-Piad, Luis A.
  • Delgado-Pinar, Martina
  • Cruz, J. L.
  • Carrascosa, A.
  • Díez, A.
  • Rojas-Laguna, Roberto
  • Andrés, M. V.
We propose the implementation of fiber Bragg gratings in tapered few-modes, and multimode fibers to accomplish single-mode operation by reducing the core diameter while preserving the core-cladding structure. Gratings present a single reflection band and the device show low insertion losses after the taper fabrication and the fiber Bragg gratings inscription. The excitation of high order odd-modes in the core of the fiber has been identified as the main loss mechanism; it can be prevented by means of symmetric illumination of the fibers. We also demonstrate the excitation of high order cladding modes (cladding-air modes) along the taper transitions; these modes can be removed without a significant increment of the insertion loss.
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PID1819_068_Anexo 6.pdf, Anexo 6. PID 2018/19_068 Aprendizaje de los Proyectos Arquitectónicos desde la: “Gamificación”, “Flipped Classroom”, BYOD (“Bring Your Own Device”)

  • González Fraile, Eduardo Miguel
Innovación Educativa, Anexo a la memoria Final de PID_18_19_068: Aprendizaje de los Proyectos Arquitectónicos desde la: “Gamificación”, “Flipped Classroom”, BYOD (“Bring Your Own Device”) Presenta la clase Jornada de Intercambio de Metodologías y Ejercicios Docentes a nivel de profesorado celebrada en la E.T.S. Arquitectura de la Universidad de Sevilla. EDUARDO GONZÁLEZ FRAILE, Departamento de Teoría de la Arquitectura y Proyectos Arquitectónicos
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