Search results for "lider"
showing 10 items of 1757 documents
Precise measurement of the top quark mass in dilepton decays using optimized neutrino weighting
2016
We measure the top quark mass in dilepton final states of top-antitop events in proton-antiproton collisions at sqrt(s) = 1.96 TeV, using data corresponding to an integrated luminosity of 9.7 fb^-1 at the Fermilab Tevatron Collider. The analysis features a comprehensive optimization of the neutrino weighting method to minimize the statistical uncertainties. We also improve the calibration of jet energies using the calibration determined in top-antitop to lepton+jets events, which reduces the otherwise limiting systematic uncertainty from the jet energy scale. The measured top quark mass is mt = 173.32 +/- 1.36(stat) +/- 0.85(syst) GeV.
Transformational leadership on the athletic field: An international review
2016
This paper provides a comprehensive review of the international literature that used the paradigm of transformational leadership in the context of physical activity (PA) and sport. A bibliometric and content of all international publications (N = 28) analysis is performed by classifying research based on various parameters such as the contexts (high performance sports, educational/recreational sports, varsity sports, school/within-class of physical education), role of the leader studied (coaches, teachers/instructors, peers, parents), population (adolescents and adults), and variables that have been associated with transformational leadership style. This study supported the interest and app…
Liderazgo transformacional, capacidad de aprendizaje organizativo y felicidad en el trabajo
2013
En los últimos veinte años se ha producido un incremento de los artículos que buscan cómo mejorar el resultado económico en las empresas. No hay duda de la importancia que tiene esta variable como fin último de cualquier investigación, sin embargo, en este estudio queremos proponer una variable que consideramos de especial relevancia para la investigación en el área de organización de empresas como es la felicidad en el trabajo. La felicidad en general está directamente conectada con beneficios tan importantes como la salud física o mental, y las medidas que hasta ahora se han aproximado a la felicidad en el trabajo se han relacionado con variables tan importantes como la mejora de la motiv…
Liderazgo regio y colaboraciones colectivas. Fernando el Católico y la incorporación de Navarra a Castilla
2017
Liderazgo universatario: Factores que determinan el estilo de liderazgo en directores de escuelas y departamentos académicos en universidades costarr…
2014
Para dar respuesta a qué factores determinan el estilo del director de unidades académicas en universidades estatales de Costa Rica, se plantea un estudio correlacional de naturaleza no experimental con el interés de establecer un modelo lógico hipotético-deductivo, de modo que explique las relaciones de influencia entre el estilo de liderazgo de esos directores, sus características personales y motivacionales, las características del profesorado y las características del entorno.
Implementation and performance of the ATLAS second level jet trigger
2008
ATLAS is one of the four major LHC experiments, designed to cover a wide range of physics topics. In order to cope with a rate of 40 MHz and 25 interactions per bunch crossing, the ATLAS trigger system is divided in three different levels. The first one (LVL1, hardware based) identifies signatures in 2 microseconds that are confirmed by the the following trigger levels (software based). The Second Level Trigger (LVL2) only looks at a region of the space around the LVL1 signature (called Region of Interest or ROI), confirming/rejecting the event in about 10 ms, while the Event Filter (Third Level Trigger, EF) has potential full event access and larger processing times, of the order of 1 s. T…
The Upgrade of the ATLAS Level-1 Central Trigger Processor
2013
The ATLAS Level-1 Central Trigger Processor (CTP) combines information from calorimeter and muon trigger processors as well as other sources and makes the final Level-1 Accept (L1A) decision. Due to the increasing luminosity of the LHC and the growing demands of physics and monitoring placed on the ATLAS Level-1 trigger system, the current CTP has reached its design limits. Therefore and in order to provide some margin for future operation, the CTP will be upgraded during the LHC shutdown of 2013/14.
DEPFET Active Pixel Detectors for a Future Linear e(+)e(-) Collider
2013
arXiv:1212.2160v1.-- et al.
Global Trigger Technological Demonstrator for ATLAS Phase-II upgrade
2020
ATLAS detector at the LHC will undergo a major Phase-II upgrade for the High Luminosity LHC. The upgrade affects all major ATLAS systems, including the Trigger and Data Acquisition systems. As part of the Level-0 Trigger System, the Global Trigger uses full-granularity calorimeter cells to perform algorithms, refines the trigger objects and applies topological requirements. The Global Trigger uses a Global Common Module as the building block of its design. To achieve a high input and output bandwidth and substantial processing power, the Global Common Module will host the most advanced FPGAs and optical modules. In order to evaluate the new generation of optical modules and FPGAs running at…
Constraining the spin-dependent WIMP-nucleon cross sections with XENON1T
2019
We report the first experimental results on spin-dependent elastic weakly interacting massive particle (WIMP) nucleon scattering from the XENON1T dark matter search experiment. The analysis uses the full ton year exposure of XENON1T to constrain the spin-dependent proton-only and neutron-only cases. No significant signal excess is observed, and a profile likelihood ratio analysis is used to set exclusion limits on the WIMP-nucleon interactions. This includes the most stringent constraint to date on the WIMP-neutron cross section, with a minimum of 6.3 × 10−42 cm2 at 30 GeV/c2 and 90% confidence level. The results are compared with those from collider searches and used to exclude new paramet…