Search results for "ATL"

Measurements of underlying-event properties using neutral and charged particles in pp collisions at root s=900 GeV and root s=7 TeV with the ATLAS de…

2011

We present first measurements of charged and neutral particle-flow correlations in pp collisions using the ATLAS calorimeters. Data were collected in 2009 and 2010 at centre-of-mass energies of 900 GeV and 7 TeV. Events were selected using a minimum-bias trigger which required a charged particle in scintillation counters on either side of the interaction point. Particle flows, sensitive to the underlying event, are measured using clusters of energy in the ATLAS calorimeters, taking advantage of their fine granularity. No Monte Carlo generator used in this analysis can accurately describe the measurements. The results are independent of those based on charged particles measured by the ATLAS …

Luminosity determination in pp collisions at s=7 TeV using the ATLAS detector at the LHC

2011

Measurements of luminosity obtained using the ATLAS detector during early running of the Large Hadron Collider (LHC) at s√=7 TeV are presented. The luminosity is independently determined using several detectors and multiple algorithms, each having different acceptances, systematic uncertainties and sensitivity to background. The ratios of the luminosities obtained from these methods are monitored as a function of time and of μ, the average number of inelastic interactions per bunch crossing. Residual time- and μ-dependence between the methods is less than 2% for 0<μ<2.5. Absolute luminosity calibrations, performed using beam separation scans, have a common systematic uncertainty of ±11%, do…

Limits on the production of the standard model Higgs boson in pp collisions at root s=7 TeV with the ATLAS detector

2011

A search for the Standard Model Higgs boson at the Large Hadron Collider (LHC) running at a centre-of-mass energy of 7 TeV is reported, based on a total integrated luminosity of up to 40 pb−1 collected by the ATLAS detector in 2010. Several Higgs boson decay channels: H→γγ, H→ZZ(∗)→ℓℓℓℓ, H→ZZ→ℓℓνν, H→ZZ→ℓℓqq, H→WW(∗)→ℓνℓν and H→WW→ℓνqq (ℓ is e, μ) are combined in a mass range from 110 GeV to 600 GeV. The highest sensitivity is achieved in the mass range between 160 GeV and 170 GeV, where the expected 95% CL exclusion sensitivity is at Higgs boson production cross sections 2.3 times the Standard Model prediction. Upper limits on the cross section for its production are determined. Models wit…

Research update for articles published in EJCI in 2016

2018

The association of an excessive blood pressure increase with exercise (i.e., an increase in systolic blood pressure with exercise ≥95th percentile) with lower risk of subsequent events in patients with known or suspected coronary artery disease has been consistently verified even in those with baseline hypertension. Nonetheless, this negative association, also confirmed in another study on a Japanese population, might depend on peak VO2, such that the prognostic value of blood pressure response might be limited in patients with preserved exercise capacity. In addition, a hypertensive response with exercise (defined as a systolic blood pressure ≥220 mmHg during the test) has also been associ…

Variabilità genetica in Aristeus antennatus (Crustacea, Decapoda) attraverso analisi AFLP (Amplified Fragment Length Polymorphism).

2007

Método de medida de umbrales en direcciones oponentes

2019

El documento contiene un primer apartado con un organigrama explicativo, 2 apartados teóricos para comprender los espacios de color y como podemos utilizarlos, un tercero para explicar de manera muy básica como usar el programa de Demo_Estimuls para generar nuestros estímulos, y un quinto apartado donde queda agrupada la programación para Matlab. El documento describe de manera simplificada un metodo de medida de umbrales en las direcciones oponentes mediante un test con el método de escalera, incluyendo breves explicaciones sobre los espacios de color utilizados, y una explicación básica del uso del programa Demo_Estimuls de Matlab, además de la programación necesaria para la creación de e…

Flexibility in otherwise consistent non-breeding movements of a long-distance migratory seabird, the long-tailed skua

2017

Quantifying within- and between-individual variation in animal migration strategies is a first step towards our understanding of the ability of migrants to adjust to changes in the en - vironment. We studied consistency (or, conversely, flexibility) in movement patterns at large (>1000 km) to meso-scales (100−1000 km) during the non-breeding season of the long-tailed skua Stercorarius longicaudus, a long-distance migratory Arctic seabird, using light-based geolocation. We obtained 97 annual tracks of 38 individuals and quantified similarity between routes. Overall, tracks of the same individual were generally within about 200 to 300 km of their previous year’s route, and more similar than t…

Gāzu hromatogrāfijas tvaika fāzes metodes validācija atlikušo šķīdinātāju noteikšanai

2022

Gāzu hromatogrāfijas tvaika fāzes metodes validācija atlikušo šķīdinātāju noteikšanai Linezolīda aktīvajā vielā. Fjodorova V., darba vadītāji Dr. chem., Rudoviča V., Mg. Chem. Antonoviča S. Bakalaura darbs, 77 lappuses, 29 tabulas, 7 attēli, 23 literatūras avoti, 50 pielikumi. Latviešu valodā. Darbā ir apkopota literatūra par farmaceitiski aktīvo vielu Linezolīds, šīs vielas sintēzes stadijām un atlikušajiem šķīdinātājiem esošajā produktā. Apkopota un izvērtēta informācija arī par gāzu hromatogrāfijas metodi un analīzes metodes validāciju. Pētnieciskajā darbā ir noskaidroti piemērotākie gāzu hromatogrāfijas analīzes apstākļi visu atlikušo šķīdinātāju (Metanola, Acetonitrila, Izopropanola, T…

Progetti di lessicografia onomastica dell’Atlante Linguistico della Sicilia

2022

L’Atlante Linguistico della Sicilia ha adottato, già una decina di anni fa, lo strumento del dizionario-atlante. Quando si è cominciato ad indagare il ricco universo onomastico, se ne è valutata la spendibilità anche su tre diversi corpora orali: uno relativo alle forme popolari del patrimonio toponomastico (DAToS, Dizionario-atlante toponomastico della Sicilia), uno riguardante l’inventario plurale dei soprannomi etnici (DASES, Dizionario-atlante dei soprannomi etnici in Sicilia), l’ultimo afferente al patrimonio antroponomastico popolare, individuale e familiare (DASS, Dizionario-atlante dei soprannomi di/in Sicilia). Il contributo fornisce lo stato dell’arte dei tre progetti e ne descriv…

Improved Performance of a PV Solar Panel with Adaptive Neuro Fuzzy Inference System ANFIS based MPPT

2018

This article presents the development of an intelligent technique of Adaptive-Neuro-Fuzzy Inference System (ANFIS) based on Maximum Power Point Tracking (ANFIS-MPPT) algorithm with PI controller in order to increase the performances of the photovoltaic panel system below change atmospheric circumstances. In this work, the mathematical principles of the ANFIS method were presented and developed using the software Matlab/Simulink. Moreover, the effectiveness of this ANFIS-MPPT technique is demonstrated by a comparison of the obtained results with others obtained from a classical (Perturb & Observe) P & O-MPPT method.From the analysis of the obtained results, the ANFIS-MPPT command provide bet…