Search results for "pole"
showing 10 items of 1981 documents
Autour de Saint-Dizier
2017
Présentation des fouilles archéologiques menées à Saint-Dizier à la Tuilerie et aux crassées
Glaucomatous Maculopathy: Thickness Differences on Inner and Outer Macular Layers between Ocular Hypertension and Early Primary Open-Angle Glaucoma U…
2020
The purpose of this study was to compare the thickness of all inner and outer macular layers between ocular hypertension (OHT) and early primary open-angle glaucoma (POAG) using spectral domain optical coherence tomography (SD-OCT) 8 × 8 posterior pole algorithm (8 × 8 PPA). Fifty-seven eyes of 57 OHT individuals and fifty-seven eyes of 57 early POAG patients were included. The thickness of macular retinal nerve fiber layer (mRNFL), ganglion cell layer (GCL), inner plexiform layer (IPL), inner nuclear layer (INL), outer plexiform and nuclear layer, photoreceptor layer (PRL) and retinal pigment epithelium were obtained in 64 cells for each macular layer and mean thickness of superior and inf…
Quarkonium suppression in heavy-ion collisions: an open quantum system approach
2016
We address the evolution of heavy-quarkonium states in an expanding quark-gluon plasma by implementing effective field theory techniques in the framework of open quantum systems. In this setting we compute the nuclear modification factors for quarkonia that are $S$-wave Coulombic bound states in a strongly-coupled quark-gluon plasma. The calculation is performed at an accuracy that is leading-order in the heavy-quark density expansion and next-to-leading order in the multipole expansion. The quarkonium density-matrix evolution equations can be written in the Lindblad form, and, hence, they account for both dissociation and recombination. Thermal mass shifts, thermal widths and the Lindblad …
Review of Particle Physics
2020
The Review summarizes much of particle physics and cosmology. Using data from previous editions, plus 2,143 new measurements from 709 papers, we list, evaluate, and average measured properties of gauge bosons and the recently discovered Higgs boson, leptons, quarks, mesons, and baryons. We summarize searches for hypothetical particles such as supersymmetric particles, heavy bosons, axions, dark photons, etc. Particle properties and search limits are listed in Summary Tables. We give numerous tables, figures, formulae, and reviews of topics such as Higgs Boson Physics, Supersymmetry, Grand Unified Theories, Neutrino Mixing, Dark Energy, Dark Matter, Cosmology, Particle Detectors, Colliders, …
The nature of reserch in the history of education within the scientific environment up till hte year 1991
2017
Artykuł jest kontynuacją rozważań zamieszczonych w tomie poprzednim, w którym przekazane zostały dane dotyczące kształtowania się opolskiego ośrodka naukowego. Proces ten rozpoczął się w 1954 r., kiedy to przeniesiona została do Opola założona we Wrocławiu Wyższa Szkoła Pedagogiczna. Drugim elementem tworzonego ośrodka był reaktywowany w Opolu w 1957 r. założony w 1934 r. Instytut Śląski oraz utworzone w 1955 r. Polskie Towarzystwo Przyjaciół Nauk. Rozważania obecne dotyczą kontynuacji badań nad historią oświaty prowadzoną w obu placówkach naukowych, Staraliśmy się ukazać kierunki badań na tle potrzeb społecznych i politycznych, uwarunkowań naukowych, sytuacji nauki w kraju. Nie tylko przed…
A measurement of the neutron to 199Hg magnetic moment ratio
2014
The neutron gyromagnetic ratio has been measured relative to that of the 199Hg atom with an uncertainty of 0.8 ppm. We employed an apparatus where ultracold neutrons and mercury atoms are stored in the same volume and report the result γn/γHg=3.8424574(30).
A M�ssbauer and ESR study of LiNbO3-Fe2O3 for low Fe2O3 concentrations
1989
Samples of the system LiNbO3-Fe2O3 prepared by water quenching and by the double-roller quenching method in the range up to 24 mol% Fe2O3 were investigated by Mossbauer and ESR spectroscopy. In the water quenched samples up to 11 mol% Fe2O3 only the Fe3+ and the Fe2+ valence states could be detected. The Fe2+ concentration decreased with increasing Fe2O3 content. Above 11 mol% Fe2O3 magnetically split Mossbauer spectra indicated the presence of Fe2O3 clusters. The isomer shift values of Fe3+ as a function of Fe2O3 concentration showed jumps at 6 and 11 mol% Fe2O3, whereas no significant changes could be detected in the quadrupole splitting values. The ESR data already exhibited the existenc…
Il vescovo-prefetto: la diocesi di Sora nel periodo napoleonico.
1998
Géographie des marchés, firmes globales et performance des métropoles européennes
2011
National audience;
Dziennikarstwo : zawód czy profesja?
2013
An article Journalism - an occupation or profession shows the polemic about the problem whether to qualify journalism as profession. Author points the reasons for and against treating journalism as the profession. The author is especially focuses on the role and social mission associated with journal-ists. The first parts of the article concern the range of definitions of journal-ism as well as the areas and phases of its development. The following parts define the terms of occupation and profession and are the attempt to qualify journalism to one of those categories. Basing on the analysis of the literature, author claims that journalism do not fulfill the criteria to be qualified as profe…