Search results for "cb"
showing 10 items of 647 documents
Observation of $Z$ production in proton-lead collisions at LHCb
2014
The first observation of $Z$ boson production in proton-lead collisions at a centre-of-mass energy per proton-nucleon pair of $\sqrt{s_{NN}}=5~\text{TeV}$ is presented. The data sample corresponds to an integrated luminosity of $1.6~\text{nb}^{-1}$ collected with the LHCb detector. The $Z$ candidates are reconstructed from pairs of oppositely charged muons with pseudorapidities between 2.0 and 4.5 and transverse momenta above $20~\text{GeV}/c$. The invariant dimuon mass is restricted to the range $60-120~\text{GeV}/c^2$. The $Z$ production cross-section is measured to be \begin{eqnarray*} ��_{Z\to��^+��^-}(\text{fwd})&=&13.5^{+5.4}_{-4.0}\text{(stat.)}\pm1.2\text{(syst.)}~\text{nb} …
Cross-culturally approaching the cycling behaviour questionnaire (CBQ) : Evidence from 19 countries
2022
Given different advances in applied literature, risky and positive behaviours keep gaining ground as key contributors for riding safety outcomes. In this regard, the Cycling Behaviour Questionnaire (CBQ) represents one of the tools available to assess the core dimensions of cycling behaviour and their relationship with road safety outcomes from a behavioural perspective. Nevertheless, it has never been psychometrically approached through a cross-cultural perspective. Therefore, this study aimed to perform the cross-cultural validation of the CBQ, examining its psychometric properties, reliability indexes, validity insights and descriptive scores in 19 countries distributed across five regio…
"Table 3" of "Charm-quark fragmentation fractions and production cross section at midrapidity in pp collisions at the LHC"
2022
Production cross section of charm-anticharm quark pairs per unity of rapidity at midrapidity $\mathrm{d}\sigma^{\mathrm{c\overline{c}}}/\mathrm{d}y|_{|y| < 0.5}$ in pp collisions at $\sqrt{s} = 2.76$, $5.02$, and $7$ TeV.
Análisis cuantitativo del hueso alveolar y palatino en las zonas de colocación de minitornillos utilizando CBCT
2022
OBJETIVOS: La estabilidad de los minitornillos está relacionada con la calidad y cantidad ósea existente en el complejo craneofacial. En este estudio se analizaron, tanto en el maxilar como en la mandíbula, los espacios interradiculares, la cortical ósea vestibular, la anchura del proceso alveolar, así como el espesor del hueso palatino y la densidad ósea de la cortical. Las mediciones se realizaron utilizando el CBCT y se analizó la correlación existente de las mismas con el patrón facial, la clase esquelética, la edad y el sexo de los sujetos. MATERIAL Y MÉTODOS: 129 CBCTs fueron seleccionados de pacientes pertenecientes a la Clínica Odontológica de la Universitat de València. Se realizar…
Sistema de transferencia de datos en el instrumento TilePPr del proyecto TileCal
2017
El proyecto surge de la implementación del nuevo sistema de lectura de datos FELIX, que aprovecha los Transceptores Gigabit incorporados en las FPGA XC7VX485T y XC7VX690T del fabricante Xilinx. Estos transceptores se usan para establecer enlaces de datos a través de fibra óptica entre la FPGA del Pre-procesador del TileCal o TilePPr (XC7VX485T) y la placa electrónica que está conectada por PCIe al servidor local (XC7VX690T), por lo que el trabajo consiste en alcanzar los siguientes objetivos: a) Poner en marcha en la FPGA XC7VX485T del Pre-procesador o TilePPr la interfaz de transferencia de datos para que sea compatible con el nuevo sistema “Enlace de intercambio en el límite frontal” o FE…
Latvijas Vēstures Institūta Žurnāls. 2015, Nr. 3 (96)
2015
Valsts kultūrkapitāla fonds
El discurso profesional en la biblioteca: alternativas en red a la relación usuario-sistema
2020
Este trabajo analiza la relación entre bibliotecarios y usuarios partiendo de un enfoque que toma el texto generado por estos profesionales, no como una ventana a una realidad única, sino como objeto de análisis. Se trata del análisis del discurso, que permite adoptar una perspectiva crítica, cuestionando hechos ampliamente aceptados y reflexionando sobre el objeto de estudio, en este caso los usuarios de las bibliotecas.
Pharmacological activation of CB2 receptors counteracts the deleterious effect of ethanol on cell proliferation in the main neurogenic zones of the a…
2015
Chronic alcohol exposure reduces endocannabinoid activity and disrupts adult neurogenesis in rodents, which results in structural and functional alterations. Cannabinoid receptor agonists promote adult neural progenitor cell (NPC) proliferation. We evaluated the protective effects of the selective CB1 receptor agonist ACEA, the selective CB2 receptor agonist JWH133 and the fatty-acid amide-hydrolase (FAAH) inhibitor URB597, which enhances endocannabinoid receptor activity, on NPC proliferation in rats with forced consumption of ethanol (10%) or sucrose liquid diets for 2 weeks. We performed immunohistochemical and stereological analyses of cells expressing the mitotic phosphorylation of his…
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…
Polyoxypregnanes as safe, potent, and specific ABCB1-inhibitory pro-drugs to overcome multidrug resistance in cancer chemotherapy in vitro and in vivo
2021
Multidrug resistance (MDR) mediated by ATP binding cassette subfamily B member 1 (ABCB1) is significantly hindering effective cancer chemotherapy. However, currently, no ABCB1-inhibitory drugs have been approved to treat MDR cancer clinically, mainly due to the inhibitor specificity, toxicity, and drug interactions. Here, we reported that three polyoxypregnanes (POPs) as the most abundant constituents of Marsdenia tenacissima (M. tenacissima) were novel ABCB1-modulatory pro-drugs, which underwent intestinal microbiota-mediated biotransformation in vivo to generate active metabolites. The metabolites at non-toxic concentrations restored chemosensitivity in ABCB1-overexpressing cancer cells v…