Recerca: Enviaments recents
Ara mostrant els elements 3201-3220 de 4423
-
La comunicació educativa desde l'enfocament hermenèutic
(Educar, 1991, núm. 18, 1991)El artículo tipifica la acción educativa desde la significación que los planteamientos de la teoría hermenéutica otorga la comunicación. La acción comunicativa es designada por la hermenéutica contemporánea ... -
Searches for violation of lepton flavour and baryon number in tau lepton decays at LHCb
(Physics Letters B , 2013, Vol. 724, No. 1-3 (Juliol, 2013), 2013-07-09)Searches for the lepton flavour violating decay $\tau^-\rightarrow \mu^-\mu^+\mu^-$ and the lepton flavour and baryon number violating decays $\tau^-\rightarrow \bar{p}\mu^+\mu^-$ and $\tau^-\rightarrow ... -
Measurement of the CKM angle γ from a combination of B±→Dh± analyses
(Physics Letters B, 2013, Vol. 726, No. 1-3, (Octubre 2013), 2013-10-07)A combination of three LHCb measurements of the CKM angle gamma is presented. The decays B-+/- -> DK +/- and B-+/- -> D pi(+/-) are used, where D denotes an admixture of D-0 and (D) over bar (0) mesons, ... -
Measurement of the B0s−B¯0s oscillation frequency Δms in B0s→D−s(3)π decays
(Physics Letters B, 2012-03-19)The B0s–B0soscillation frequency msis measured with 36 pb−1of data collected inppcollisions at √s=7 TeV by the LHCb experiment at the Large Hadron Collider. A total of 1381B0s→D−sπ+andB0s→D−sπ+π−π+signal ... -
Measurement of the differential branching fraction of the decay Λ0b → Λμ+ μ−
(Physics Letters B, 2013, Vol. 725, No. 1-3 (Agost 2013), 2013-06)The differential branching fraction of the decay $\Lambda_b^0\rightarrow\Lambda\mu^+\mu^-$ is measured as a function of the square of the dimuon invariant mass, $q^2$. A yield of $78\pm12$ $\Lambda_b^ ... -
Search for direct CP violation in D0 → h−h+ modes using semileptonic B decays
(Physics Letters B, 2013, Vol. 723, No. 1-3 (Juny), 2013-06-10)A search for direct CP violation in D0 -> h- h+ (where h=K or pi) is presented using data corresponding to an integrated luminosity of 1.0 fb^-1 collected in 2011 by LHCb in pp collisions at a centre-of-mass ... -
Measurement of the D+s − D−s production asymmetry in 7 TeV pp collisions
(Physics Letters B, 2012, Vol. 713, No. 3, (Juliol), 2012-07-09)Heavy quark production in 7 TeV centre-of-mass energy pp collisions at the LHC is not necessarily flavour symmetric. The production asymmetry, A_P, between Ds+ and Ds- mesons is studied using the ... -
Measurement of the B0s→J/ψK0S branching fraction
(Physics Letters B, 2012, Vol. 713, No. 3, (Juliol), 2012-07-09)The B0s→J/ψK0S branching fraction is measured in a data sample corresponding to 0.41 fb−1 of integrated luminosity collected with the LHCb detector at the LHC. This channel is sensitive tothe penguin ... -
Measurement of the polarization amplitudes and triple product asymmetries in the B s 0 → ϕ ϕ decay
(Physics Letters B, 2012, Vo. 713, No. 4-5 (Juliol 2012), 2012-07-18)Using 1.0 fb^{-1} of pp collision data collected at a centre-of-mass energy of sqrt{s}=7 TeV with the LHCb detector, measurements of the polarization amplitudes, strong phase difference and triple product ... -
First observation of the decay B¯0s→D0K∗0 and a measurement of the ratio of branching fractions B(B¯0s→D0K∗0)/B(B¯0→D0ρ0)
(Physics Letters B, Vol. 706, No. 1 (Novembre 2011), 2011-11-30)The first observation of the decay B¯s0→D0K⁎0 using pp data collected by the LHCb detector at a centre-of-mass energy of 7 TeV, corresponding to an integrated luminosity of 36 pb−1 , is reported. A ... -
First observation of the decay B0s→K∗0K∗0
(Physics Letters B, 2012,Vol. 709, No. 1-2 (Març 2012), 2012-03-13)The first observation of the decay $\kstarkstar$ is reported using 35\invpb of data collected by LHCb in proton-proton collisions at a centre-of-mass energy of 7 TeV. A total of $49.8 \pm 7.5$ $B^0_s ... -
Measurement of the CP-violating phase φs in B0s→J/ψπ+π− decays
(Physics Letters B, 2012, Vol. 713, No. 4-5 (Juliol), 2012-07-18)Measurement of the mixing-induced CP-violating phase phi_s in Bs decays is of prime importance in probing new physics. Here 7421 +/- 105 signal events from the dominantly CP-odd final state J/\psi pi+ ... -
Measurement of the D± production asymmetry in 7 TeV pp collisions
(Physics Letters B, 2013, Vol. 718, No. 3 (Gener 2013), 2013-01-08)The asymmetry in the production cross-section \sigma of D+/- mesons, A_P = (\sigma(D+) - \sigma(D-))/(\sigma(D+) + \sigma(D-)), is measured in bins of pseudorapidity \eta and transverse momentum p_T ... -
Observation of the decay B0s→D0φ
(Physics Letters B, 2013, Vol. 727, No. 4-5 (Desembre 2013), 2013-12)First observation of the decayB0s→D0φis reported usingppcollision data, corresponding to an inte-grated luminosity of 1.0 fb−1, collected by the LHCb experiment at a centre-of-mass energy of 7 TeV. ... -
Measurement of the cross-section ratio σ(χc2)/σ(χc1) for prompt χc production at √s=7TeV
(Physics Letters, 2012, Vol. 714, No. 2-5 (Agost), 2012-08-14)The prompt production of the charmonium $\chi_{c1}$ and $\chi_{c2}$ mesons has been studied in proton-proton collisions at the Large Hadron Collider at a centre-of-mass energy of $\sqrt{s}=7$ TeV. The ... -
Maig del 68: la paraula alliberada i el desig d’educar
(TE Temps d'educació, 2019, Núm. 56, 2019)Aquest article interroga l’actualitat educativa de Maig del 68, considerant la pèrdua de significat del concepte «experiència» a la nostra època. L’experiència es refereix bàsicament a la relació ... -
Changes in Spanish adolescents' cardiorespiratory endurance in a period of 20 years (1998-2018)
(2019)Physical fitness is a measure of the body's ability to perform physical activity and exercise, thus providing a valuable indicator of health (Tomkinson, Carver, et al., 2017). Cardiorespiratory endurance ... -
Acute effects of fatigue on markers of service performance in young tennis players
(European College of Sport Science. ECSS Prague 2019, 2019)The acute effects of fatigue on serve speed, accuracy, and consistency were examined over consecutive days of prolonged tennis match play (2,3) or when a fatiguing exercise protocol was performed ... -
Could academic achievement be an indicator of physical fitness in 6th year elementary education students?
(2019)The lack of physical activity in children has become a serious problem in our society in recent years. Physical inactivity is considered a risk factor for developing obesity and diseases such as diabetes ... -
High performance Web-of-Things architecture for the smart grid domain
(International Journal of Distributed Sensor Networks. 2015, 2015-12)The increasing complexity in the management of Smart Grids is an essential factor in the creation of new technological infrastructures capable of managing the different devices involved in the network. ...