Search results for "ExAC"
showing 10 items of 1440 documents
"Table 16" of "Search for supersymmetry in final states with jets, missing transverse momentum and one isolated lepton in sqrt{s} = 7 TeV pp collisio…
2016
Effective mass in the muon plus three jets top control region.
Search for point-like sources of ultra-high energy neutrinos at the pierre auger observatory and improved limit on the diffuse flux of tau neutrinos
2012
The surface detector array of the Pierre Auger Observatory can detect neutrinos with energy Eν between 1017 eV and 1020 eV from point-like sources across the sky south of +55º and north of −65º declinations. A search has been performed for highly inclined extensive air showers produced by the interaction of neutrinos of all flavors in the atmosphere (downward-going neutrinos), and by the decay of tau leptons originating from tau neutrino interactions in Earth’s crust (Earth-skimming neutrinos). No candidate neutrinos have been found in data up to 2010 May 31. This corresponds to an equivalent exposure of ∼3.5 years of a full surface detector array for the Earth-skimming channel and ∼2 years…
Measurement of the production cross section of jets in association with a Z boson in pp collisions at $\sqrt{s}$ = 7 TeV with the ATLAS detector
2013
Measurements of the production of jets of particles in association with a Z boson in pp collisions at s√ = 7 TeV are presented, using data corresponding to an integrated luminosity of 4.6 fb[superscript −1] collected by the ATLAS experiment at the Large Hadron Collider. Inclusive and differential jet cross sections in Z events, with Z decaying into electron or muon pairs, are measured for jets with transverse momentum p [subscript T] > 30 GeV and rapidity |y| < 4.4. The results are compared to next-to-leading-order perturbative QCD calculations, and to predictions from different Monte Carlo generators based on leading-order and next-to-leading-order matrix elements supplemented by parton sh…
Correlation functions for a strongly coupled boson system and plane partitions.
2011
A quantum phase model is introduced as a limit for very strong interactions of a strongly correlated q -boson hopping model. The exact solution of the phase model is reviewed, and solutions are also provided for two correlation functions of the model. Explicit expressions, including both amplitude and scaling exponent, are derived for these correlation functions in the low temperature limit. The amplitudes were found to be related to the number of plane partitions contained in boxes of finite size.
Acute toxicity of organochlorined pesticides to the European eel,Anguilla anguilla: The dependency on exposure time and temperature
1987
New types of environmental POPs
1998
Recent knowledge on sources, biomagnification and ecotoxic potential of earlier less studied persistent organic pollutants (POP) is briefly reviewed. Chlorohydrocarbons discussed are techno‐chemicals polychloronaphthalenes (PCN), polychloroterphenyls (PCT), octachlorostyrene (OCS) and hexachlorobutadiene, pulp bleachery wastes chlorocymenes (CYMS), chlorocymenenes (CYMD), alkylpolychlorophenanthrenes (RPCPH), alkylprolychlorobibenzyls (RPCBB) and alkylpolychloronaphthalenes (RPCN), and fish contaminants polychlorofluorenes (PCFL) and fluorenones (PCFLO), alkyl polychlorofluorenes (RPCFL), polychlorodihydroanthracenes (PCDHA) and polychloroanthracenes (PCAN). Aromatic chloroethers discussed …
Darboux Linearization and Isochronous Centers with a Rational First Integral
1997
Abstract In this paper we study isochronous centers of polynomial systems. It is known that a center is isochronous if and only if it is linearizable. We introduce the notion of Darboux linearizability of a center and give an effective criterion for verifying Darboux linearizability. If a center is Darboux linearizable, the method produces a linearizing change of coordinates. Most of the known polynomial isochronous centers are Darboux linearizable. Moreover, using this criterion we find a new two-parameter family of cubic isochronous centers and give the linearizing changes of coordinates for centers belonging to that family. We also determine all Hamiltonian cubic systems which are Darbou…
Exact Voronoi diagram of smooth convex pseudo-circles: General predicates, and implementation for ellipses
2013
International audience; We examine the problem of computing exactly the Voronoi diagram (via the dual Delaunay graph) of a set of, possibly intersecting, smooth convex \pc in the Euclidean plane, given in parametric form. Pseudo-circles are (convex) sites, every pair of which has at most two intersecting points. The Voronoi diagram is constructed incrementally. Our first contribution is to propose robust and efficient algorithms, under the exact computation paradigm, for all required predicates, thus generalizing earlier algorithms for non-intersecting ellipses. Second, we focus on \kcn, which is the hardest predicate, and express it by a simple sparse $5\times 5$ polynomial system, which a…
COPD in elderly patients – an analysis of the DACCORD observational study
2018
Introduction: In elderly patients COPD is frequently complicated by the presence of several comorbidities and the many non-COPD-related medications prescribed to treat these conditions. This analysis aims to characterize COPD patients above the age of 75 in a real-world cohort in Germany. Methods: DACCORD is a prospective, non-interventional study collecting data from COPD patients treated in primary and secondary care. Prior to study entry, patients either initiated or changed COPD maintenance medication. Moderate/severe exacerbations, COPD-medication and non-COPD medication were documented at baseline and every 3 months. Comorbidities were documented at baseline. Results: Baseline charact…
Fast analysis of polyphenols and alkaloids in cocoa-based products by ultra-high performance liquid chromatography and Orbitrap high resolution mass …
2018
The cocoa varieties Criollo, Forastero and Trinitario, which have different organoleptic properties, quite often are mixed together in cocoa-based products. The objective of this work was to develop a rapid method for the simultaneous determination of polyphenols (n = 35) and alkaloids (n = 2) in cocoa-based products by using the high throughput advantages provided by the Q Exactive Hybrid Quadrupole-Orbitrap Mass Spectrometer (FIRMS). The proposed procedure was optimized and validated in terms of selectivity and specificity (mass accuracy 0.990), accuracy (recovery range from 89.1 to 112.4%) and precision (relative standard deviation < 10%). The method was applied to 80 cocoa-based samples…