La Salle: Recent submissions

Now showing items 181-200 of 737

    • Observation of charmonium pairs produced exclusively in pp collisions 

      Badalov, Alexey; Calvo Gómez, Míriam; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Journal of Physics G-Nuclear and Particle Physics, 2014, Vol. 41, No. 11, 2014-09)
      A search is performed for the central exclusive production of pairs of charmonia produced in proton-proton collisions. Using data corresponding to an integrated luminosity of 3 fb−1 collected at ...

    • Precision measurement of the B0 s –B 0 s oscillation frequency with the decay B0 s → D − s π + 

      Abellan Beteta, Carlos; Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (New Journal of Physics, 2013, Vol. 15, 2013-05)
      A key ingredient to searches for physics beyond the Standard Model in B0 s mixing phenomena is the measurement of the B0 s – B 0 s oscillation frequency, which is equivalent to the mass difference 1ms ...

    • B flavour tagging using charm decays at the LHCb experiment 

      Badalov, Alexey; Calvo Gómez, Míriam; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Journal of Instrumentation, 2015, Vol. 10, 2015-10)
      An algorithm is described for tagging the flavour content at production of neutral B mesons in the LHCb experiment. The algorithm exploits the correlation of the flavour of a B meson with the charge of ...

    • Measurement of CP violation and constraints on the CKM angle γ in B±→DK±with D→K0S π+π− decays 

      Badalov, Alexey; Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Nuclear Physics B, 2014, Vol. 888, 2014-11)
      A model-dependent amplitude analysis of B± → DK± with D → KS0π+π− decays is performed using proton–proton collision data, corresponding to an integrated luminosity of 1fb−1, recorded by LHCb at a ...

    • Precision luminosity measurements at LHCb 

      Calvo Gómez, Míriam; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Journal of Instrumentation, 2014, Vol. 9, 2014-12)
      Measuring cross-sections at the LHC requires the luminosity to be determined accurately at each centre-of-mass energy √ s. In this paper results are reported from the luminosity calibrations carried out ...

    • Metodología on demand para el desarrollo de la asignatura de Sistemas Operativos Avanzados 

      Canaleta Llampallas, Xavier; Vernet Bellet, David; Navarro Martín, Joan (2013-07)
      Este artículo explora la metodología on demand, que puede ser considerada una nueva faceta del Aprendizaje Basado en Proyectos (Project Based Learning). Esta metodología de aprendizaje está orientada ...

    • Measurement of the track reconstruction efficiency at LHCb 

      Badalov, Alexey; Calvo Gómez, Míriam; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Journal of Instrumentation, 2015, Vol. 10, No. 7, 2015-02)
      The determination of track reconstruction efficiencies at LHCb using J/ψ→μ+μ- decays is presented. Efficiencies above 95% are found for the data taking periods in 2010, 2011, and 2012. The ratio of the ...

    • La ludificación como estrategia de mejora de la motivación, rendimiento académico y satisfacción de los estudiantes 

      Villa Fernández, Guillem; Canaleta Llampallas, Xavier (2016-07)
      La ludificación es una estrategia pedagógica que se caracteriza por utilizar las técnicas, elementos y dinámicas de los juegos en actividades ajenas a estos. Para utilizarla en un entorno educativo ...

    • Analizando el proceso de aprendizaje de nuestros alumnos: un caso práctico 

      Amo Filvà, Daniel; Navarro Martín, Joan; Canaleta Llampallas, Xavier (2019-07)
      Actualmente la analítica del aprendizaje nos proporciona herramientas que nos permiten conocer con más detalle el proceso de aprendizaje de nuestros estudiantes y, gracias a ello, podemos realizar mejoras ...

    • Component Analysis and Time Series Prediction 

      Gómez Ramírez, Eduardo; Martorell Rodon, Josep M.; Vilasís Cardona, Xavier (2001-10)
      The relation between component analysis (PCA and ICA) and Multi-resolution Filtering is ex­plained and its use to improve the prediction er­ror in a time series is shown. An example applying the previous ...

    • Evidence for the decay B0 → J/ψω and measurementof the relative branching fractions of B0s meson decays to J/ψη and J/ψη′ 

      Abellan Beteta, Carlos; Calvo Gómez, Míriam; Camboni, Alessandro; Domingo Bonal, Francesc; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Nuclear Physics B, 2012, Vol. 867, No. 3, 2012-10)
      First evidence of the B0→J/ψω decay is found and the B0s→J/ψη and B0s→J/ψη′ decays are studied using a dataset corresponding to an integrated luminosity of 1.0 fb−1 collected by the LHCb experimentin ...

    • A Comparative Survey of Feature Extraction and Machine Learning Methods in Diverse Acoustic Environments 

      Bonet Solà, Daniel; Alsina Pagès, Rosa Maria (Sensors, 2021, Vol. 21, No. 4, 2021-02)
      Acoustic event detection and analysis has been widely developed in the last few years for its valuable application in monitoring elderly or dependant people, for surveillance issues, for multimedia ...

    • A Smart Campus’ Digital Twin for Sustainable Comfort Monitoring 

      Zaballos Diego, Agustín; Briones Delgado, Alan; Massa, Alba; Centelles Perxés, Pol; Caballero Codina, Víctor (Sustainability, 2020, Vol. 12, No. 21, 2020-11)
      Interdisciplinary cross-cultural and cross-organizational research offers great opportunities for innovative breakthroughs in the field of smart cities, yet it also presents organizational and knowledge ...

    • Inferring the votes in a new political landscape: the case of the 2019 Spanish Presidential elections 

      Grimaldi, Didier; Diaz Cely, Javier; Arboleda, Hugo (Journal of Big Data, 2020, 2020-08)
      The avalanche of personal and social data circulating in Online Social Networks over the past 10 years has attracted a great deal of interest from Scholars and Practitioners who seek to analyse not only ...

    • Classifying Microcalcifications in Digital Mammograms using Machine Learning techniques 

      Golobardes, Elisabet; Martí, Joan; Español, Josep; Salamó Llorente, Maria; Freixenet, Jordi; Llorà Fàbrega, Xavier; Maroto, Albert; Bernadó Mansilla, Ester (2001-10)
      This paper presents a Computer Aided Diag­nosis (CAD) of breast cancer from mammograms. The first part involves severa! image processing techniques, which extract a set of features from the microcalcifications ...

    • Sistemas Operativos, un análisis a largo plazo de los procesos de innovación docente 

      Canaleta Llampallas, Xavier (2018-07)
      A menudo los análisis que se realizan sobre los procesos de innovación docente suelen ser cortoplacistas. Muchas ponencias y artículos presentan resultados entre dos y tres cursos académicos como máximo. ...

    • Markets for data 

      Thomas, Llewellyn D.W.; Leiponen, Aija; Koutroumpis, Pantelis (Industrial and Corporate Change, 2020, Vol. 29, No. 3, 2020-03)
      Although datasets are abundant and assumed to be immensely valuable, they are not being shared or traded openly and transparently on a large scale. We investigate the nature of data trading with a ...

    • Generació de funcions de similitud mitjançant la Programació Genetica pel Raonament Basat en Casos 

      Golobardes, Elisabet; Nieto, Mireya; Camps Dausà, Joan; Calzada, Gemma; Martí, Joan; Vernet Bellet, David; Salamó Llorente, Maria (2001-10)
      El raonament basat en casos recupera casos utilit­zant una funció de similitud. La funció de simi­litud permet extraure els casos més similars de la memoria de casos al nou cas que volem resoldre. Per ...

    • Mobile robot guidance using cellular neural networks and fuzzy logic 

      Balsi, Marco; Maraschini, Alessandro; Apicella, Giada; Luengo Álvarez, Sonia; Vilasís Cardona, Xavier (2001-10)
      We show how a Cellular Neural Networks based im­age processing system together with a Tuzzy Logic controller are capable of providing the necessary signal processing to guide an autonomous mobile robot ...

    • Observations of B0 s → ψ(2S)η and B0 (s) → ψ(2S)π+π− decays 

      Abellan Beteta, Carlos; Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Nuclear Physics B, 2013, Vol. 871, No. 3, 2013-06)
      First observations of the B0s→ψ(2S)η,B0→ψ(2S)π+π− and B0s→ψ(2S)π+π− decays are made using a dataset corresponding to an integrated luminosity of 1.0 fb−1 collected by the LHCb experiment in proton–proton ...