Search results for "ELF"
showing 10 items of 5893 documents
First study of the two-body scattering involving charm hadrons
2022
Physical review / D 106(5), 052010 (2022). doi:10.1103/PhysRevD.106.052010
Transverse momentum spectra and nuclear modification factors of charged particles in pp, p-Pb and Pb-Pb collisions at the LHC
2018
We report the measured transverse momentum ($p_{\rm T}$) spectra of primary charged particles from pp, p-Pb and Pb-Pb collisions at a center-of-mass energy $\sqrt{s_{\rm NN}} = 5.02$ TeV in the kinematic range of $0.15<p_{\rm T}<50$ GeV/$c$ and $|\eta|< 0.8$. A significant improvement of systematic uncertainties motivated the reanalysis of data in pp and Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 2.76$ TeV, as well as in p-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV, which is also presented. Spectra from Pb-Pb collisions are presented in nine centrality intervals and are compared to a reference spectrum from pp collisions scaled by the number of binary nucleon-nucleon collisions. For cent…
Characterizing the initial conditions of heavy-ion collisions at the LHC with mean transverse momentum and anisotropic flow correlations
2022
Physics letters / B 834, 137393 (2022). doi:10.1016/j.physletb.2022.137393
Measurement of spin-orbital angular momentum interactions in relativistic heavy-ion collisions
2020
The first evidence of spin alignment of vector mesons ($K^{*0}$ and $\phi$) in heavy-ion collisions at the Large Hadron Collider (LHC) is reported. The spin density matrix element $\rho_{00}$ is measured at midrapidity ($|y| <$ 0.5) in Pb-Pb collisions at a center-of-mass energy ($\sqrt{s_{\rm NN}}$) of 2.76 TeV with the ALICE detector. $\rho_{00}$ values are found to be less than 1/3 (1/3 implies no spin alignment) at low transverse momentum ($p_{\rm T} <$ 2 GeV/$c$) for $K^{*0}$ and $\phi$ at a level of 3$\sigma$ and 2$\sigma$, respectively. No significant spin alignment is observed for the $K^0_S$ meson (spin = 0) in Pb-Pb collisions and for the vector mesons in $pp$ collisions. The meas…
Probing the Effects of Strong Electromagnetic Fields with Charge-Dependent Directed Flow in Pb-Pb Collisions at the LHC
2020
The first measurement at the LHC of charge-dependent directed flow ($v_{1}$) relative to the spectator plane is presented for Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV. Results are reported for charged hadrons and $\rm D^{0}$ mesons for the transverse momentum intervals $p_{\rm T}>0.2$ GeV/$c$ and $3<p_{\rm T}<$ 6 GeV/$c$ in the 5-40% and 10-40% centrality classes, respectively. The difference between the positively and negatively charged hadron $v_{1}$ has a positive slope as a function of pseudorapidity $\eta$, ${\rm d}\Delta{v_1}/{\rm d}\eta=$[1.68 $\pm$ 0.49 (stat.) $\pm$ 0.41 (syst.)] $\times 10^{-4}$. The same measurement for $\rm D^{0}$ and $\rm\bar{D}{}^0$ mesons yields a p…
A multimodal analysis of british television commercials and their Influence in the audience
2018
Abstract A MULTIMODAL ANALYSIS OF BRITISH TELEVISION COMMERCIALS AND THEIR INFLUENCE IN THE AUDIENCE Advertising has been among us since ancient times; but since the beginning of the Industrial Revolution —middle of the XIX century— advertising grew at the same rate as the industrial activity did. Today, most people are constantly exposed to its messages and it is an activity for which companies spend large amounts of money. This shows that it has an impact on sales, making it a key activity in the capitalist machinery. One may wonder what makes advertising so effective. Hitherto, there have been a multitude of studies about what makes advertising such a skilful tool in convincing people. I…
Animació i motivació per a l'autoocupació: l'esperit emprenedor a l'escola
2012
El sistema educatiu pot contribuir enormement a l'impuls de l'esperit emprenedor, a la creació d'una cultura emprenedora tot començant pels més joves i a l'escola. Perquè impulsant les actituds i les capacitats emprenedores es beneficia la societat, fins i tot més enllà de l'aplicació d'aquestes capacitats a noves iniciatives empresarials. En un sentit més ampli, l'esperit emprenedor s'hauria de considerar com una actitud general que pot resultar útil en totes les activitats laborals i en la vida quotidiana. Qualsevol pot necessitar, i de fet necessitarà en algun moment de la vida, convertir-se en empresari o adoptar un comportament empresarial. Per tant, entre els objectius de l'educació, …
Una experiència de coaching grupal i desenvolupament de competències emprenedores en estudiants universitaris
2012
L'ocupabilitat dels estudiants universitaris sovint suposa un desajust entre el perfil professional i el perfil buscat per les empreses, impulsades per criteris d'originalitat, aplicabilitat, viabilitat i estructura; una nova avaluació, d'acord amb els mateixos criteris, es fa pels professors externs a l'assignatura i, finalment, es remeten a la Càtedra d'Emprenedoria, demanant avaluació i les diverses subvencions i subsidis que podrien rebre si decideixen dur a terme el projecte. Els resultats obtinguts segueixen un patró establert en els diferents grups. Aquells que, d'acord amb els criteris anteriors (originalitat, aplicabilitat, viabilitat i estructura), obtenen millors resultats a trav…
Efficacy of an internet-based psychological intervention for problem gambling and gambling disorder: study protocol for a randomized controlled trial
2021
Gambling Disorder is a prevalent non-substance use disorder, which contrasts with the low number of people requesting treatment. Information and Communication Technologies (ICT) could help to enhance the dissemination of evidence-based treatments and considerably reduce the costs. The current study seeks to assess the efficacy of an online psychological intervention for people suffering from gambling problems in Spain. The proposed study will be a two-arm, parallel-group, randomized controlled trial. A total of 134 participants (problem and pathological gamblers) will be randomly allocated to a waiting list control group (N = 67) or an intervention group (N = 67). The intervention program i…
Positive effects of an extracellular matrix hydrogel on rat anterior cruciate ligament fibroblast proliferation and collagen mRNA expression
2015
Summary Background/Objective We have previously shown that an extracellular matrix (ECM) bioscaffold derived from porcine small intestine submucosa (SIS) enhanced the healing of a gap injury of the medial collateral ligament as well as the central third defect of the patellar tendon. With the addition of a hydrogel form of SIS, we found that a transected goat anterior cruciate ligament (ACL) could also be healed. The result begs the research question of whether SIS hydrogel has positive effects on ACL fibroblasts (ACLFs) and thus facilitates ACL healing. Methods In the study, ECM-SIS hydrogel was fabricated from the digestion of decellularised and sterilised sheets of SIS derived from αGal-…