La Salle: Recent submissions
Now showing items 201-220 of 737
-
Measurement of relative branching fractions of B decays to ψ(2S) and J/ψ mesons
(The European Physical Journal C, 2012, Vol. 72, No. 2118, 2012-08)The relative rates of B-meson decays into J/ψ and ψ(2S) mesons are measured for the three decay modes in pp collisions recorded with the LHCb detector. The ratios of branching fractions (B) are measured ... -
Measurement of the forward energy flow in pp collisions at √s = 7 TeV
(The European Physical Journal C, 2013, Vol. 73, No. 2421, 2013-05)The energy flow created in pp collisions at √s = 7 TeV is studied within the pseudorapidity range 1.9 <η< 4.9 with data collected by the LHCb experiment. The measurements are performed for inclusive ... -
Determination of the quark coupling strength |Vub| using baryonic decays
(Nature Physics, 2015, Vol. 11, 2015-07)In the Standard Model of particle physics, the strength of the couplings of the b quark to the u and c quarks, |Vub| and |Vcb|, are governed by the coupling of the quarks to the Higgs boson. Using data ... -
Measurement of the CP-violating phase φsin B0s→J/ψπ+π−decays
(Physics Letters B, 2014, Vol. 736, 2014-09)The mixing-induced CP-violating phase in and decays is measured using the final state in data, taken from 3 fb−1 of integrated luminosity, collected with the LHCb detector in 7 and 8 TeV centre-of-mass ... -
Search for the doubly charmed baryon Ξ+ cc
(Journal of High Energy Physics, 2013, No. 90, 2013-12)A search for the doubly charmed baryon Ξ+ cc in the decay mode Ξ+ cc→ Λ + c K−π + is performed with a data sample, corresponding to an integrated luminosity of 0.65 fb−1 , of pp collisions recorded at ... -
New methods and technologies for enhancing usability and accessibility of educational data
(Universal Access in the Information Society, 2020, 2020-10) -
Small is big in ICT: The impact of R&D on productivity
(Telecommunications Policy, 2020, 2019-07)We examine the contribution of R&D to firm productivity in a large panel of European firms and study its variation with the age, size, and sub-sector of firms. We find that R&D capital in ICT firms has ... -
Evidence for the decay X(3872) →ψ(2S)γ
(Nuclear Physics B, 2014, Vol. 886, 2014-09)Evidence for the decay mode X(3872) →ψ(2S)γ in B+→X(3872)K+decays is found with a sig-nificance of 4.4 standard deviations. The analysis is based on a data sample of proton–proton collisions, corresponding ... -
Evolution of Decision Trees
(2001-10)This paper addresses the issue of the induction of orthogonal, oblique and multivariate decision trees. Algorithms proposed by other researchers use heuristic, usually based on the information gain ... -
Optimizacion de la accesibilidad web a partir de la experiencia de uso con usuarios discapacitados
(2009-06)La accesibilidad web, incluso la accesibilidad a espacios reales son conceptos ampliamente definidos en la mayoría de casos por expertos en el tema y habitualmente implementados por diseñadores o ... -
Measurement of the B0–B0 oscillation frequency md with the decays B0→D−π+ and B0→J/ψK∗0
(Physical Letters B, Vol. 719, 2013-01)The B0–B0oscillation frequency mdis measured by the LHCb experiment using a dataset correspondingto an integrated luminosity of 1.0fb−1of proton–proton collisions at√s=7TeV,and is found to be ... -
Measurement of the effective B0s→J/ψK0S lifetime
(Nuclear Physics B, 2013, Vol. 873, No. 2, 2013-08)This paper reports the first measurement of the effective B0s→J/ψK0S lifetime and an updated mea-surement of its time-integrated branching fraction. Both measurements are performed with a data sample, ... -
Measurement of the ¯¯¯ B 0 s Effective Lifetime in the J / ψ f 0 ( 980 ) Final State
(Physical Review Letters, 2012, Vol. 109, No. 15, 2012-10)The effective lifetime of the ¯¯¯ B 0 s meson in the decay mode ¯¯¯ B 0 s → J / ψ f 0 ( 980 ) is measured using 1.0 fb − 1 of data collected in p p collisions at √ s = 7 TeV with the ... -
Search for Rare B 0 ( s ) → μ + μ − μ + μ − Decays
(Physical Review Letters, 2013, Vol. 110, No. 21, 2013-05)A search for the decays B 0 s → μ + μ − μ + μ − and B 0 → μ + μ − μ + μ − is performed using data, corresponding to an integrated luminosity of 1.0 fb − 1 , collected with the LHCb detector in ... -
O cambiamos o los perdemos
(2019-07)Cada vez más, los alumnos que entran en la universidad demuestran que la manera que tienen de aprender y estudiar no es compatible con la mayoría de los métodos de enseñanza que existen habitualmente ... -
Utilizando analítica del aprendizaje en una clase invertida: Experiencia de uso en la asignatura de Sistemas Digitales y Microprocesadores
(2018-07)El modelo de clase invertida (o flipped classroom) permite al docente implementar actividades de aprendizaje activo en las sesiones presenciales dejando que el alumno trabaje los contenidos más teóricos ... -
Systematic Review on Which Analytics and Learning Methodologies Are Applied in Primary and Secondary Education in the Learning of Robotics Sensors
(Sensors, 2020, Vol. 21, No. 1, 2020-12)Robotics technology has become increasingly common both for businesses and for private citizens. Primary and secondary schools, as a mirror of societal evolution, have increasingly integrated science, ... -
Observation of B0s→χc1φ decay and study of B0→χ c1,2K∗0 decays
(Nuclear Physics B, 2013, Vol. 874, No. 3, 2013-09)The first observation of the decay B0s→χc1φ and a study of B0→χc1,2K∗0 decays are presented. The analysis is performed using a dataset, corresponding to an integrated luminosity of 1.0 fb−1, collected ... -
Green tea extracts containing epigallocatechin-3-gallate modulate facial development in Down syndrome
(Scientific Reports, 2020, Vol. 11, 2021-02)Trisomy of human chromosome 21 (Down syndrome, DS) alters development of multiple organ systems, including the face and underlying skeleton. Besides causing stigmata, these facial dysmorphologies can ... -
Educational Warehouse: Modular, Private and Secure Cloudable Architecture System for Educational Data Storage, Analysis and Access
(Applied Sciences, 2021, Vol. 11, No. 2, 2021-01)Data in the educational context are becoming increasingly important in decision-making and teaching-learning processes. Similar to the industrial context, educational institutions are adopting data-processing ...