51,716 research outputs found

    Hymn to the heroes of Malta

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    Ġabra ta’ poeżiji u proża li tinkludi: Alla fil-ħolqien ta’ Ġużè Agius Bonello – Is-sena u l-bniedem ta’ Ġużè Ellul-Mercer – Li tiżra’ taħsad ta’ Vic. Apap – Huwa ta’ Gino Muscat-Azzopardi – Żewġ friefet ta’ Vincent Caruana – Iċ-ċagħka ta’ Ġużè Borg – Warda midbiela ta’ C. Gauci – It-tfajla tas-sulfarini ta’ Albert M. Cassola – L-aħħar traduzzjoni ta’ May Butcher qabel ma mietet – Hymn to the heroes of Malta.N/

    Light Gluino And Tevatroin Dijet Angular Distributions

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    We consider the effects of a light gluino on the dijet angular distributions in p - pbar collisions at sqrt(s)=1800 GeV. We show that the slower running of alpha_s and the production q qbar, g g -> Gino Gino do not significantly alter the expected angular distributions. On the other hand, single U, D squark production q g -> Q Gino with subsequent Q -> q g results in dijets whose angular distributions are dramatically different from that in SM. The CDF data on dijet angular distributions with integrated luminosity of 106 pb^(-1) exclude U, D squarks in the mass ranges 170 < m < 650 and 190 < m < 600 GeV, We consider lower energies as well and show that in a future experimental analysis for dijet mass below 240 GeV squarks could be observed or ruled out.Comment: 10 pages, LaTeX with 2 epsf figure

    Remote sensing and interdisciplinary approach for studying Dubai’s urban context and development

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    Outlining the different phases and features of the urban and socio-economic development of Dubai, this work is aimed at highlighting the potential of remote sensing and the interdisciplinary approach for the study of cities characterised by overwhelming growth processes. In this way Dubai represents an ideal laboratory since the processes that have been triggered in the last decades have radically modified the previous balances and layouts. Thus the image of a mirage city has been gradually diffused, a city where ambitious objectives can be achieved, targets reached that are difficult to pursue elsewhere, frenetic development processes realised, in a nevertheless increasingly delicate territorial-environmental fabric onto which such phenomena are grafted. The analysis of various remote sensed images, gathered over different periods of times, highlights a number of important aspects from the geological point of view, of the physical geography, the urban development and the direct growth in all directions, with a series of artificial islands and much publicised anthropic works

    Effective theories of electroweak symmetry breaking

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    We present a brief review of recent attempts to construct effective theories to describe the breaking of the electroweak symmetry in extensions of the Standard Model with new strongly interacting dynamics around the TeV scale. Particular attention is devoted to the analogies of Higgsless models with Chiral Perturbation Theory (the low-energy limit of QCD).Comment: 12 pages, invited talk at the 6th International Workshop on Chiral Dynamics, CD09, July 6-10, 2009, Bern, Switzerland (v2: minor typos corrected)

    The Challenges of Flavour Physics

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    The open problems and the most recent developments in flavour physics are briefly reviewed. Particular attention is devoted to the current "anomalies" in the CKM picture and their possible interpretation in beyond-the-Standard-Model frameworks.Comment: 13 pages, plenary talk at ICHEP 2010 (Paris, July 22-28, 2010). V2: A few typos corrected and a few refs adde

    On the construction of group invariant non expansive operators

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    In questa tesi vengono illustrati metodi di topologia computazionale negli ambiti di topological data analysis e shape comparison. Nello specifico, dato uno spazio topologico X e un sottogruppo G di Homeo(X), viene studiato un set di dati Φ composto da funzioni definite su X, continue e limitate, a valori reali. Per farlo si utilizzano degli operatori G-invarianti non espansivi (GINO), che si sono dimostrati efficaci per approssimare la pseudo-distanza naturale. In particolare in questo lavoro vengono studiati metodi per la costruzione di tali operatori, sfruttando le proprietà algebriche delle variabili del problema. È importante osservare che il gruppo G viene sempre considerato come variabile, in quanto un cambio dell’osservatore può generalmente coincidere con un cambio dell’invarianza a cui si è interessati

    NASTRAN as a resource in code development

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    A case history is presented in which the NASTRAN system provided both guidelines and working software for use in the development of a discrete element program, PATCHES-111. To avoid duplication and to take advantage of the wide spread user familiarity with NASTRAN, the PATCHES-111 system uses NASTRAN bulk data syntax, NASTRAN matrix utilities, and the NASTRAN linkage editor. Problems in developing the program are discussed along with details on the architecture of the PATCHES-111 parametric cubic modeling system. The system includes model construction procedures, checkpoint/restart strategies, and other features
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