Search results for "visti"
showing 10 items of 759 documents
Latviešu valodas apguve lingvistiski neviendabīgā vidē pirmsskolā
2021
Kvalifikācijas darba autore: Elīna Kacere. Kvalifikācijas darba tēma: “Latviešu valodas apguve lingvistiski neviendabīgā vidē pirmsskolā”. Pētījuma mērķis: pētīt latviešu valodas apguves iespējas lingvistiski neviendabīgā vidē pirmsskolā. Temats ir aktuāls, jo mūsdienās sabiedrība ir kļuvusi daudzkulturāla, pieaug bilingvālu un multilingvālu cilvēku skaits, apkārtējā vide ir kļuvusi lingvistiski neviendabīga. Tāpēc, lai cilvēki varētu komunicēt savā starpā, nodot informāciju viens otram, paust savu viedokli, emocijas, raksturot notikumus, iekļauties darba tirgū, ir nepieciešama vienota valoda, par kuru kalpo konkrētās valsts valoda, kurā cilvēks dzīvo. Latvijā tā ir latviešu valoda. Bērniem…
Use of a running coupling in the NLO calculation of forward hadron production
2018
We address and solve a puzzle raised by a recent calculation [1] of the cross-section for particle production in proton-nucleus collisions to next-to-leading order: the numerical results show an un- reasonably large dependence upon the choice of a prescription for the QCD running coupling, which spoils the predictive power of the calculation. Specifically, the results obtained with a prescription formulated in the transverse coordinate space differ by one to two orders of magnitude from those obtained with a prescription in momentum space. We show that this discrepancy is an artefact of the interplay between the asymptotic freedom of QCD and the Fourier transform from coordinate space to mo…
Aleksandr Prochanov, o la Crimea come antidoto al postmoderno
2019
When Aleksandr Prokhanov’s Mr. Hexogen appeared in 2001 most critics perceived it as a postmodern novel – a totally unexpected move from this author, a long-standing Soviet writer and a leader of the Stalinist-nationalist opposition. The work shows indeed some features in common with, for instance, Babylon by Viktor Pelevin, one of the most popular Russian postmodern writers. Both novels demonstrate a phantasmagoric picture of the hidden side of Russian political life: if, however, in Pelevin’s case the intent is clearly ironic, Mr. Hexogen can be read as a book aimed to convey the view that the Moscow terrorist attacks of winter 1999 were designed in order to ensure Putin’s raise to presid…
Consistent treatment of relativistic corrections in deuteron photodisintegration in a one-pion-exchange model
1992
Using a one-pion-exchange model for the nucleon-nucleon interaction the relativistic corrections to potential and to the electromagnetic operators are derived in a power expansion of (p/M). All corrections up to the order (p/M)3 are consistently included. Numerical results are shown for differential cross section and polarization observables for deuteron photodisintegration. A sizeable influence of relativistic effects on some observables is found even at low energies. A comparison of our operators with the expressions of other authors is given.
Slipshod utterances : a study of mislanguage
1992
Dalla memoria mitica alla memoria storica: gli storici e gli archivisti al servizio di una nuova costruzione della memoria delle comunità greco-alban…
2021
Il presente contributo propone la creazione di un archivio digitale inventato a favore di un nuovo apparato narrativo in relazione alle comunità italo-albanesi di Sicilia a dispetto di quello costruito su di esse nei secoli. Ignorando le testimonianze scritte del passato a favore di suggestioni interpretative, si è in quel modo contribuito alla costruzione di una sorta di ' epopea' arbëreshe. Nel tentativo di favorire altre e diverse narrazioni, si vuole riflettere sull'archivio come nuovo e privilegiato strumento di costruzione della memoria collettiva e di narrazione di luoghi e territori, condotta tramite la realizzazione di un progetto incentrato sul patrimonio documentario delle comuni…
Puskin e Leopardi: libertà ed erranza
2010
The main target of this paper was to compare the poem Kavkazkij plennik (1821) by A. Puskin and Canto notturno di un pastore errante dell’Asia (1830) by G. Leopardi, in order to stress the different ways to deal with two important topics of the European Romanticism: freedom and roaming. This comparison is based on the analysis of three common elements: imprisonment, space and the two heroines, i.e. the girl and the moon. As for the first element the aim was to highlight the different attitudes and reactions to imprisonment of the two heroes. The metaphoric and symbolic value of space in the two works has been investigated, such as the role played by the girl in Puskin’s poem and the moon in…
Elliptic flow in nuclear collisions at ultrarelativistic energies available at the CERN Large Hadron Collider
2009
We use perfect-fluid hydrodynamical model to predict the elliptic flow coefficients in $\mathrm{Pb}+\mathrm{Pb}$ collisions at the Large Hadron Collider (LHC). The initial state for the hydrodynamical calculation for central $A+A$ collisions is obtained from the perturbative QCD $+$ saturation model. The centrality dependence of the initial state is modeled by the optical Glauber model. We show that the baseline results obtained from the framework are in good agreement with the data from the Relativistic Heavy Ion Collider and show predictions for the ${p}_{T}$ spectra and elliptic flow of pions in $\mathrm{Pb}+\mathrm{Pb}$ collisions at the LHC. Also mass and multiplicity effects are discu…
Measurement of charged pion double spin asymmetries at midrapidity in longitudinally polarized p+p collisions at s=510 GeV
2020
The PHENIX experiment at the Relativistic Heavy Ion Collider has measured the longitudinal double spin asymmetries, $A_{LL}$, for charged pions at midrapidity ($|\eta|<0.35$) in longitudinally polarized $p+p$ collisions at $\sqrt{s}=510$ GeV. These measurements are sensitive to the gluon spin contribution to the total spin of the proton in the parton momentum fraction $x$ range between 0.04 and 0.09. One can infer the sign of the gluon polarization from the ordering of pion asymmetries with charge alone. The asymmetries are found to be consistent with global quantum-chromodynamics fits of deep-inelastic scattering and data at $\sqrt{s}=200$ GeV, which show a nonzero positive contribution of…
Measurement of transverse single-spin asymmetries forJ/ψproduction in polarizedp+pcollisions ats=200 GeV
2010
We report the first measurement of transverse single-spin asymmetries in J/psi production from transversely polarized p + p collisions at root s = 200 GeV with data taken by the PHENIX experiment in 2006 and 2008. The measurement was performed over the rapidity ranges 1.2 < vertical bar y vertical bar < 2.2 and vertical bar y vertical bar < 0.35 for transverse momenta up to 6 GeV/c. J/psi production at the Relativistic Heavy Ion Collider is dominated by processes involving initial-state gluons, and transverse single-spin asymmetries of the J/psi can provide access to gluon dynamics within the nucleon. Such asymmetries may also shed light on the long-standing question in QCD of the J/psi pro…