237 research outputs found

    Un capitello tuscanico da Rusellae: confronti e ipotesi

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    This paper presents the analysis of a heart-shaped Tuscan capital, avoid of context, found in Rusellae. Its shape allows to attribute it hypothetically to an arcaded structure identified with the Forum. Currently it is one of the few know evidences in Italy, where the heart-shaped pillar was not frequently used in Roman architecture. It also allows a better understanding of the restoration of the Forum during the Imperial era.Il contributo presenta l’analisi di un capitello tuscanico di pilastro, fuori contesto, proveniente da Roselle, con caratteristica forma a cuore che induce ad attribuirlo ad una struttura porticata identificata verosimilmente con il Foro. Esso costituisce, allo stato attuale, uno dei pochi casi noti in Italia, dove il pilastro cuoriforme fu adottato nell’architettura romana non frequentemente; inoltre permette di ricostruire e comprendere meglio la ristrutturazione subita dalla piazza in epoca imperiale

    Un capitello tuscanico da Rusellae: confronti e ipotesi

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    This paper presents the analysis of a heart-shaped Tuscan capital, avoid of context, found in Rusellae. Its shape allows to attribute it hypothetically to an arcaded structure identified with the Forum. Currently it is one of the few know evidences in Italy, where the heart-shaped pillar was not frequently used in Roman architecture. It also allows a better understanding of the restoration of the Forum during the Imperial era.Il contributo presenta l’analisi di un capitello tuscanico di pilastro, fuori contesto, proveniente da Roselle, con caratteristica forma a cuore che induce ad attribuirlo ad una struttura porticata identificata verosimilmente con il Foro. Esso costituisce, allo stato attuale, uno dei pochi casi noti in Italia, dove il pilastro cuoriforme fu adottato nell’architettura romana non frequentemente; inoltre permette di ricostruire e comprendere meglio la ristrutturazione subita dalla piazza in epoca imperiale

    La decorazione architettonica del Capitolium di Brescia: catalogo dei materiali

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    Known since the since the twenties of the nineteenth century, when the temple was completely taken to the light and rebuilt to host the “Museo patrio”, the Capitolium of Brescia has been object of many studies, first of all the volume “Museo bresciano illustrato”, published in 1838 to the end of investigations carried out between 1823 and 1826. In spite of the interest from many scholars of the Roman architecture in Cisalpine, the temple has never been studied systematically, even if during the seventies Antonio Frova, with Giuliana Cavalieri Manasse and Maria Pia Rossignani, started to study and to catalog the architectural material publishing first results in occasion of the nineteenth centenary of the Temple’s dedication in the 1973. In anticipation of the publication of the last field investigations and of the researches that recently have been realized both on the Capitolium and on the Republican Sanctuary, expected in 2013, this paper aims to present architectural blocks and fragments of the architectural decoration in a catalogue resulted by a census both of the pieces replace in situ and of those ones still on the ground.Noto a partire dagli anni Venti del XIX secolo, quando l’edificio fu interamente portato in luce e ricostruito per ospitare il Museo patrio, il Capitolium di Brescia è stato oggetto di numerosi studi, primo fra tutti il volume “Museo bresciano illustrato” edito nel 1838 a conclusione delle indagini condotte tra il 1823 e il 1826. Nonostante l’attenzione suscitata in quanti si sono dedicati all’architettura romana della Cisalpina, l’edificio non è mai stato oggetto di studi sistematici, anche se negli anni Settanta del XX secolo Antonio Frova, con Giuliana Cavalieri Manasse e Maria Pia Rossignani, avesse avviato un lavoro di studio e catalogazione di cui furono pubblicati i primi risultati in occasione del diciannovesimo centenario della dedicazione del tempio del 1973. In vista della pubblicazione degli ultimi scavi e dei lavori che negli ultimi anni sono stati condotti sia sul Capitolium sia sul santuario repubblicano sottostante, si presentano i materiali relativi alla decorazione architettonica del tempio capitolino in un catalogo risultato dal lavoro di censimento sia dei pezzi ricollocati in situ sia di quelli lasciati nella zona antistante

    Terremoti e tsunami nella Palestina romana: conseguenze e iniziative post-sismiche nei centri urbani tra I sec. a.C. e IV sec. d.C.

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    The region corresponding to Roman Palestine, crossed by the Dead Sea Fault, has been affected several times by earthquakes and tsunamis, which have periodically caused damage and destruction. Biblical, literary, and Rabbinical sources report echoes of these events. Furthermore, archaeological investigations have sometimes brought evidence and signs on architectural structures to light. Several studies have dealt with the sequence of these events based on sources. However, a broader approach still needs to be added, which examines archaeological evidence and consequences for cities and populations. This contribution, which combines analysis of literary sources and archaeological data, intends to tackle the question of the impact that seismic events have had on urban planning and city life. Additionally, considering a selection of case studies (Caesarea Maritima, Nysa-Schytopolis, Jerusalem, Ascalon, and Sepphoris), this analysis aims to investigate the reaction of local communities, their resiliency, and political initiatives. The results indicate that only the great earthquake of 363 AD significantly affected cities' civil organization and urban planning.Il territorio corrispondente alla Palestina romana, attraversato dalla cd. Faglia del Mar Morto, è stato interessato molte volte da terremoti e tsunami che periodicamente hanno causato danni e distruzioni. Se ne trovano menzioni nelle fonti bibliche, letterarie e rabbiniche. Anche le indagini archeologiche hanno talvolta individuato i segni lasciati dai terremoti sulle strutture architettoniche. Numerosi sono gli studi che hanno raccolto la sequenza di tali eventi sulla base delle fonti, senza tuttavia un riscontro archeologico né una verifica più ampia sulle conseguenze per le città e la popolazione. Il presente contributo, attraverso un’analisi combinata di fonti e dati archeologici, intende affrontare uno studio su alcune città romane (Cesarea, Nysa Schitopolis, Gerusalemme, Ascalona, Sepphoris) per verificare l’impatto che gli eventi sismici hanno avuto sull’urbanistica e sulla vita delle città stesse, gli effetti sugli edifici e le modalità di reazione delle locali comunità. I risultati indicano che solamente il grande terremoto del 363 d.C. ebbe effetti significativi sull’organizzazione civile e sull’urbanistica delle citt

    Anchored phosphatases modulate glucose homeostasis.

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    Endocrine release of insulin principally controls glucose homeostasis. Nutrient-induced exocytosis of insulin granules from pancreatic β-cells involves ion channels and mobilization of Ca(2+) and cyclic AMP (cAMP) signalling pathways. Whole-animal physiology, islet studies and live-β-cell imaging approaches reveal that ablation of the kinase/phosphatase anchoring protein AKAP150 impairs insulin secretion in mice. Loss of AKAP150 impacts L-type Ca(2+) currents, and attenuates cytoplasmic accumulation of Ca(2+) and cAMP in β-cells. Yet surprisingly AKAP150 null animals display improved glucose handling and heightened insulin sensitivity in skeletal muscle. More refined analyses of AKAP150 knock-in mice unable to anchor protein kinase A or protein phosphatase 2B uncover an unexpected observation that tethering of phosphatases to a seven-residue sequence of the anchoring protein is the predominant molecular event underlying these metabolic phenotypes. Thus anchored signalling events that facilitate insulin secretion and glucose homeostasis may be set by AKAP150 associated phosphatase activity

    Measurement of the top quark-pair production cross section with ATLAS in pp collisions at \sqrt{s}=7\TeV

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    A measurement of the production cross-section for top quark pairs(\ttbar) in pppp collisions at \sqrt{s}=7 \TeV is presented using data recorded with the ATLAS detector at the Large Hadron Collider. Events are selected in two different topologies: single lepton (electron ee or muon Ο\mu) with large missing transverse energy and at least four jets, and dilepton (eeee, ΟΟ\mu\mu or eΟe\mu) with large missing transverse energy and at least two jets. In a data sample of 2.9 pb-1, 37 candidate events are observed in the single-lepton topology and 9 events in the dilepton topology. The corresponding expected backgrounds from non-\ttbar Standard Model processes are estimated using data-driven methods and determined to be 12.2¹3.912.2 \pm 3.9 events and 2.5¹0.62.5 \pm 0.6 events, respectively. The kinematic properties of the selected events are consistent with SM \ttbar production. The inclusive top quark pair production cross-section is measured to be \sigmattbar=145 \pm 31 ^{+42}_{-27} pb where the first uncertainty is statistical and the second systematic. The measurement agrees with perturbative QCD calculations.Comment: 30 pages plus author list (50 pages total), 9 figures, 11 tables, CERN-PH number and final journal adde

    Measurements of Higgs boson production and couplings in diboson final states with the ATLAS detector at the LHC

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    Measurements are presented of production properties and couplings of the recently discovered Higgs boson using the decays into boson pairs, H →γ γ, H → Z Z∗ →4l and H →W W∗ →lνlν. The results are based on the complete pp collision data sample recorded by the ATLAS experiment at the CERN Large Hadron Collider at centre-of-mass energies of √s = 7 TeV and √s = 8 TeV, corresponding to an integrated luminosity of about 25 fb−1. Evidence for Higgs boson production through vector-boson fusion is reported. Results of combined fits probing Higgs boson couplings to fermions and bosons, as well as anomalous contributions to loop-induced production and decay modes, are presented. All measurements are consistent with expectations for the Standard Model Higgs boson

    Measurement of the top quark pair cross section with ATLAS in pp collisions at √s=7 TeV using final states with an electron or a muon and a hadronically decaying τ lepton

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    A measurement of the cross section of top quark pair production in proton-proton collisions recorded with the ATLAS detector at the Large Hadron Collider at a centre-of-mass energy of 7 TeV is reported. The data sample used corresponds to an integrated luminosity of 2.05 fb -1. Events with an isolated electron or muon and a τ lepton decaying hadronically are used. In addition, a large missing transverse momentum and two or more energetic jets are required. At least one of the jets must be identified as originating from a b quark. The measured cross section, σtt-=186±13(stat.)±20(syst.)±7(lumi.) pb, is in good agreement with the Standard Model prediction

    Standalone vertex nding in the ATLAS muon spectrometer

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    A dedicated reconstruction algorithm to find decay vertices in the ATLAS muon spectrometer is presented. The algorithm searches the region just upstream of or inside the muon spectrometer volume for multi-particle vertices that originate from the decay of particles with long decay paths. The performance of the algorithm is evaluated using both a sample of simulated Higgs boson events, in which the Higgs boson decays to long-lived neutral particles that in turn decay to bbar b final states, and pp collision data at √s = 7 TeV collected with the ATLAS detector at the LHC during 2011
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