Cerebral Microbleeds in a Small Cohort of Patients with First Ever Lacunar Stroke. A 3Tesla MRI Longitudinal Case Series

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Low-Noise Ku-Band Receiver Frontend with Switchable SIW Filters for Cubesat Applications

This paper proposes a low-noise receiver frontend for nanosatellite and Cubesat platforms. The frontend is composed by a Low-Noise Amplifier (LNA) and two Substrate Integrated Waveguide (SIW) filters, providing a frequency reconfigurability to the system. The two filters operate in the 13 and in the 14 GHz uplink bands, and are selected by means of a pair of solid-state SPDT switches. As a results, 15.5 dB gain with 2.4 dB noise figure for the 13 GHz configuration and 17.8 dB gain with 2.3 dB noise figure for the 14 GHz configuration are obtained. This work is important since demonstrates a low-cost solution for satellite radio apparatuses based on commercial components on a standard PCB

Low-Noise Block Downconverter based on COTS and SIW Filters for Ku-band Cubesat Transponders

This paper proposes a Low-Noise Block (LNB) downconverter operating in the Ku-band for Cubesat transponders. The frontend is composed by a Low-Noise Amplifier (LNA) and two switchable Substrate Integrated Waveguide (SIW) filters, providing a frequency reconfigurability to the system. The LNB is completed by a downconversion unit, constituted by a mixer, a PLL frequency synthesizer and an IF amplifier. A first breadboard features an overall gain of 54 dB with a 2.3 dB noise figure. The worst case linearity performance indicates an input-referred 1 dB compression point (P1dB) and a third-order intercept point (IIP3) equal to -27 dBm and -16 dBm respectively. This work is important since demonstrates a low-cost solution for satellite radio apparatuses based on commercial components and standard PCB

L’internista ospedaliero nella gestione del paziente diabetico complesso

L’internista deve occuparsi (e rioccuparsi) del paziente diabetico complesso in Ospedale A. Fontanella, L. Magnani Diagnosi, classificazione, epidemiologia clinica del diabete mellito V. Provenzano, D. Brancato Up-date degli studi disponibili P. Gnerre, T.M. Attardo, A. Maffettone, G. Beltramello Il diabete mellito costituisce ancora un equivalente di rischio cardiovascolare? G. Augello, T.M. Attardo Le terapie del diabete tipo 2 sono tutte uguali ai fini della riduzione della morbilità e mortalità cardiovascolare? V. Provenzano Le nuove tecnologie nella cura del diabete mellito D. Brancato, V. Provenzano Insuline prandiali e insuline basali R. Pastorelli Quali target nel diabete mellito: il dogma dell’emoglobina glicata è davvero imprescindibile? V. Manicardi Il controllo dell’iperglicemia nel paziente anziano polipatologico: è sempre necessario iniziare l’insulina? G. Gulli, M. Nizzoli La nefropatia diabetica F. Salvati, D. Manfellotto, M. Stornello Cirrosi epatica e diabete M. Imparato, L. Fontanella La terapia personalizzata nel diabete di tipo 2 A. Maffettone, C. Peirce, M. Rinaldi La gestione dell’iperglicemia nel paziente critico e instabile C. Nozzoli La disfunzione erettile nel paziente diabetico di tipo 2 N. Artom, A. Bosio, G. Pinna Quali obiettivi di approccio integrato nella gestione del diabete mellito? E. Romboli, D. Panuccio Iperglicemia, normoglicemia ed ipoglicemia nei pazienti anziani fragili: situazioni a rischio, politerapia e comorbilità A. Greco, M. Greco, D. Sancarlo, F. Addante, G. D’Onofrio, D. Antonacci, S. De Cosmo L’impatto clinico-prognostico dell’ipoglicemia nel paziente ospedalizzato V. Borzì, L. Morbidoni, A. Fontanella L’internista chiamato in consulenza per un diabete gestazionale: quale approccio pragmatico? P. Novati, L. Sali La frugalità nella gestione del diabete mellito: qualità assistenziale, governo clinico e costi correlati P. Gnerre, G. Carta, D. Montemurro La gestione dell’iperglicemia in area medica, ma senza esagerare. L. Magnani, G. Beltramello APPENDICE I Un approccio pragmatico per la valutazione globale e la gestione del paziente diabetico F. Pieralli, A. Crociani, C. Bazzini APPENDICE II Le insuline e i farmaci ipoglicemizzanti orali disponibili P. Zuccheri, L. Alberghini, E. Sora APPENDICE III Le scale di correzione insulinica: pro e contro V. Borz

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

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

Standalone vertex finding in the ATLAS muon spectrometer

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

Single hadron response measurement and calorimeter jet energy scale uncertainty with the ATLAS detector at the LHC

The uncertainty on the calorimeter energy response to jets of particles is derived for the ATLAS experiment at the Large Hadron Collider (LHC). First, the calorimeter response to single isolated charged hadrons is measured and compared to the Monte Carlo simulation using proton-proton collisions at centre-of-mass energies of sqrt(s) = 900 GeV and 7 TeV collected during 2009 and 2010. Then, using the decay of K_s and Lambda particles, the calorimeter response to specific types of particles (positively and negatively charged pions, protons, and anti-protons) is measured and compared to the Monte Carlo predictions. Finally, the jet energy scale uncertainty is determined by propagating the response uncertainty for single charged and neutral particles to jets. The response uncertainty is 2-5% for central isolated hadrons and 1-3% for the final calorimeter jet energy scale.Comment: 24 pages plus author list (36 pages total), 23 figures, 1 table, submitted to European Physical Journal

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

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

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

A measurement of the production cross-section for top quark pairs(\ttbar) in $pp$ 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 $e$ or muon $\mu$) with large missing transverse energy and at least four jets, and dilepton ($ee$, $\mu\mu$ or $e\mu$) 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 $12.2 \pm 3.9$ events and $2.5 \pm 0.6$ 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