Soglie sonore: la canzone nelle scene e nelle sigle delle serie tv.

Lo sviluppo qualitativo e quantitativo della Grande serialità nell’ultimo decennio ha ricollocato e risemantizzato il ruolo della musica come componente diegetica imprescindibile per costruire, colorare emotivamente e rappresentare un universo narrativo. Le modalità con cui avviene la fusione dell’elemento sonoro con quello visivo e narrativo nella serialità sono molteplici, ciascuna delle quali propone un punto di vista rappresentativo della capacità dell’elemento sonoro di costituirsi come soggetto narrativo ed estetico autonomo all’interno di una narrazione complessa come quella proposta dalla Grande serialità. In particolare, due luoghi risultano significativi - e forse ancora scarsamente indagati - nel tracciare il perimetro della cooperazione tra immagini e musica nella serialità recente: le sigle e l’inserimento di canzoni pop nel tessuto delle puntate. Nel primo caso, la complessità della serialità televisiva attuale trova nella sigla un luogo in cui rileggere e risemantizzare il potente concetto genettiano di soglia, operando scelte stilistiche, estetiche e narrative che agiscono nella direzione della sempre ricercata ”qualità”. Nel secondo caso, l’inserimento di canzoni (e artisti) pop nella serialità televisiva ne mette in luce la matrice industriale, ed evidenzia il legame strettissimo - e spesso non esplicitato - con le logiche e le esigenze economiche e promozionali dell’industria musicale. Il saggio si propone di ricostruire la fisionomia dell’attuale relazione fra musica pop e grande serialità tv, rintracciandone le coordinate produttive ed estetiche attraverso l’analisi di alcuni casi emblematici

Imidazole in Aqueous Solution: Hydrogen Bond Interactions and Structural Reorganization with Concentration

The structural and dynamic properties of imidazole in aqueous solution have been studied by means of classical and ab initio molecular dynamics simulations. We developed a new force field for the imidazole molecule with improved modeling of the electrostatic interactions, specifically tailored to address the well-known drawbacks of existing force fields based on the atomic fractional charge approach. To this end, we reparametrized the charge distribution on the heterocyclic ring, introducing an extra site accounting for the lone pair on the deprotonated nitrogen. The accuracy of the model in describing the hydrogen bond pattern in the aqueous solvent has been confirmed by comparing the classical results on imidazole–water interactions to accurate Car–Parrinello molecular dynamics simulations. It reproduces satisfactorily the experimental water/octanol partition coefficient of imidazole, as well as the structure of the imidazole molecular crystal. The force field has been finally applied to simulate aqueous solutions at various imidazole concentrations to obtain information on both imidazole–water and imidazole–imidazole interactions, providing a description of the different molecular arrangements in solution

Spartito Preso

Mostra organizzata dall' Assessorato della Cultura di Firenze e presentata nell'ambito della rassegna 'Settembre Musica' in collaborazione con gli Istituti di Storia dell'Arte dell' Università degli Studi di Torino

Performance of the LHCb muon system

The performance of the LHCb Muon system and its stability across the full 2010 data taking with LHC running at ps = 7 TeV energy is studied. The optimization of the detector setting and the time calibration performed with the first collisions delivered by LHC is described. Particle rates, measured for the wide range of luminosities and beam operation conditions experienced during the run, are compared with the values expected from simulation. The space and time alignment of the detectors, chamber efficiency, time resolution and cluster size are evaluated. The detector performance is found to be as expected from specifications or better. Notably the overall efficiency is well above the design requirementsComment: JINST_015P_1112 201

Les droits disciplinaires des fonctions publiques : « unification », « harmonisation » ou « distanciation ». A propos de la loi du 26 avril 2016 relative à la déontologie et aux droits et obligations des fonctionnaires

The production of tt‾ , W+bb‾ and W+cc‾ is studied in the forward region of proton–proton collisions collected at a centre-of-mass energy of 8 TeV by the LHCb experiment, corresponding to an integrated luminosity of 1.98±0.02 fb−1 . The W bosons are reconstructed in the decays W→ℓν , where ℓ denotes muon or electron, while the b and c quarks are reconstructed as jets. All measured cross-sections are in agreement with next-to-leading-order Standard Model predictions.The production of $t\overline{t}$, $W+b\overline{b}$ and $W+c\overline{c}$ is studied in the forward region of proton-proton collisions collected at a centre-of-mass energy of 8 TeV by the LHCb experiment, corresponding to an integrated luminosity of 1.98 $\pm$ 0.02 \mbox{fb}^{-1}. The $W$ bosons are reconstructed in the decays $W\rightarrow\ell\nu$, where $\ell$ denotes muon or electron, while the $b$ and $c$ quarks are reconstructed as jets. All measured cross-sections are in agreement with next-to-leading-order Standard Model predictions

Measurement of the top quark forward-backward production asymmetry and the anomalous chromoelectric and chromomagnetic moments in pp collisions at √s = 13 TeV

Abstract The parton-level top quark (t) forward-backward asymmetry and the anomalous chromoelectric (d̂ t) and chromomagnetic (μ̂ t) moments have been measured using LHC pp collisions at a center-of-mass energy of 13 TeV, collected in the CMS detector in a data sample corresponding to an integrated luminosity of 35.9 fb−1. The linearized variable AFB(1) is used to approximate the asymmetry. Candidate t t ¯ events decaying to a muon or electron and jets in final states with low and high Lorentz boosts are selected and reconstructed using a fit of the kinematic distributions of the decay products to those expected for t t ¯ final states. The values found for the parameters are AFB(1)=0.048−0.087+0.095(stat)−0.029+0.020(syst),μ̂t=−0.024−0.009+0.013(stat)−0.011+0.016(syst), and a limit is placed on the magnitude of | d̂ t| < 0.03 at 95% confidence level. [Figure not available: see fulltext.

MUSiC : a model-unspecific search for new physics in proton-proton collisions at root s=13TeV

Results of the Model Unspecific Search in CMS (MUSiC), using proton-proton collision data recorded at the LHC at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9 fb(-1), are presented. The MUSiC analysis searches for anomalies that could be signatures of physics beyond the standard model. The analysis is based on the comparison of observed data with the standard model prediction, as determined from simulation, in several hundred final states and multiple kinematic distributions. Events containing at least one electron or muon are classified based on their final state topology, and an automated search algorithm surveys the observed data for deviations from the prediction. The sensitivity of the search is validated using multiple methods. No significant deviations from the predictions have been observed. For a wide range of final state topologies, agreement is found between the data and the standard model simulation. This analysis complements dedicated search analyses by significantly expanding the range of final states covered using a model independent approach with the largest data set to date to probe phase space regions beyond the reach of previous general searches.Peer reviewe

Search for new particles in events with energetic jets and large missing transverse momentum in proton-proton collisions at root s=13 TeV

A search is presented for new particles produced at the LHC in proton-proton collisions at root s = 13 TeV, using events with energetic jets and large missing transverse momentum. The analysis is based on a data sample corresponding to an integrated luminosity of 101 fb(-1), collected in 2017-2018 with the CMS detector. Machine learning techniques are used to define separate categories for events with narrow jets from initial-state radiation and events with large-radius jets consistent with a hadronic decay of a W or Z boson. A statistical combination is made with an earlier search based on a data sample of 36 fb(-1), collected in 2016. No significant excess of events is observed with respect to the standard model background expectation determined from control samples in data. The results are interpreted in terms of limits on the branching fraction of an invisible decay of the Higgs boson, as well as constraints on simplified models of dark matter, on first-generation scalar leptoquarks decaying to quarks and neutrinos, and on models with large extra dimensions. Several of the new limits, specifically for spin-1 dark matter mediators, pseudoscalar mediators, colored mediators, and leptoquarks, are the most restrictive to date.Peer reviewe

Combined searches for the production of supersymmetric top quark partners in proton-proton collisions at root s=13 TeV

A combination of searches for top squark pair production using proton-proton collision data at a center-of-mass energy of 13 TeV at the CERN LHC, corresponding to an integrated luminosity of 137 fb(-1) collected by the CMS experiment, is presented. Signatures with at least 2 jets and large missing transverse momentum are categorized into events with 0, 1, or 2 leptons. New results for regions of parameter space where the kinematical properties of top squark pair production and top quark pair production are very similar are presented. Depending on themodel, the combined result excludes a top squarkmass up to 1325 GeV for amassless neutralino, and a neutralinomass up to 700 GeV for a top squarkmass of 1150 GeV. Top squarks with masses from 145 to 295 GeV, for neutralino masses from 0 to 100 GeV, with a mass difference between the top squark and the neutralino in a window of 30 GeV around the mass of the top quark, are excluded for the first time with CMS data. The results of theses searches are also interpreted in an alternative signal model of dark matter production via a spin-0 mediator in association with a top quark pair. Upper limits are set on the cross section for mediator particle masses of up to 420 GeV