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Now showing items 351-360 of 538
¿Una imagen o mil palabras? Influencia de la extensión de las preguntas y el soporte gráfico en las tasas de éxito y abandono de las pruebas en línea
(Ediciones Universidad Salamanca, 2016-12-31)
The growing popularity of automatically graded online tests, either as an evaluation or self-assessment tool in online or blended education, demands a review of how these questions are designed and ...
Heidegger lector de Parmènides: repensar la veritat
(Facultat de Teologia de Catalunya, 1999)
Ionospheric Narrowband and Wideband HF Soundings for Communications Purposes: A Review
(MDPI, 2020-04)
High Frequency (HF) communications through ionospheric reflection is a widely usedtechnique specifically for maritime, aeronautical, and emergency services communication withremote areas due ...
Small is big in ICT: The impact of R&D on productivity
(Elsevier, 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 ...
Entre foscors i clarors. La ‘mirada’ com a ‘exercici filosòfic’ a la Caverna de Plató
(Universitat de Barcelona, 2012)
Aquest estudi pretén situar dins d’un context filològic, cultural i filosòfic l’«itinerari de la mirada» que llegim en la «narració de la Caverna» del llibre VII de La República de Plató. Amb aquest ...
Hierarchical Classification of Environmental Noise Sources by Considering the Acoustic Signature of Vehicle Pass-bys
(Committee on Acoustics PAS, PAS Institute of Fundamental Technological Research, Polish Acoustical Society, 2012-12)
This work is focused on the automatic recognition of environmental noise sources that affect humans’ health and quality of life, namely industrial, aircraft, railway and road traffic. However, the ...
Measurement of CP violation and constraints on the CKM angle γ in B±→DK±with D→K0S π+π− decays
(Elsevier, 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 ...
Observation of J/ψp Resonances Consistent with Pentaquark States in Λ0b→J/ψK−p Decays
(American Physical Society, 2015-08-12)
Observations of exotic structures in the J/ψp channel, which we refer to as charmonium-pentaquark states, in Λ0b→J/ψK−p decays are presented. The data sample corresponds to an integrated luminosity of ...
Study of η − η′ mixing from measurement of B 0(s) → J/ψη(′) decay rates
(Springer, 2015-01-08)
A study of B and Bs meson decays into J/ψ η and J/ψ η′ final states is performed using a data set of proton-proton collisions at centre-of-mass energies of 7 and 8 TeV, collected by the LCHb experiment ...