323,335 research outputs found
Appunti sulla collezioni Compagnoni Floriani
No full textThis paper focuses on the Macerata epigraphic collection of Compagnoni family, wich presents invented forgeries, copies of authentic texts and interpolated inscriptions
Supersymmetric Standard Model, Branes and Del Pezzo Surfaces
No full textThe Standard Model of particle physics is one of the most important successful results of the work of the last century physicists. In this new book, the authors present topical research in the study of new developments in the Standard Model. Topics discussed include non-equilibrium theory, fractional dynamics and the physics of the terascale sector; unexplored regions in QFT and the conceptual foundations of the Standard Model; supersymmetric Standard Model, Branes and Del Pezzo surfaces; fermion condensate as Higgs substitute and Lepton flavor violation shedding light on CP-violation.
Even though the Standard Model of particles has been confirme by several experiments, many questions require improvements. Beyond the problem of Grand Unification the mass gap problem, the question of hierarchies, low boson masses and dynamical soft supersymmetry breaking, there is the really hard difficult in including gravity in a full quantum paradigm of the Standard Model. The most famous scheme elaborated in order to solve the last and, possibly, all this points is String Theory.
Dualities, mirror symmetry, M-theory and AdS/CFT are some of the powerful tools
which permit to perform several progresses in all the mentioned directions, at least in principle. However, interactions of String Theory with phenomenology are really recent results. A way to get a contact between theory and phenomenology is the so called bottom-up approach. We will present here a possible String Theory approach to the (Minimal Supersymmetric) Standard Model based on the geometric engineering construction firs proposed in [H. Verlinde and M. Wijnholt, JHEP 0701, 106]. We will study the relevant geometry along the lines of [S.L. Cacciatori and M. Compagnoni, JHEP 1005:078,2010], and the related physics. We will study the singular orbifold C3/27, with 27 a suitable non abelian group, its geometry and show how it can be desingularized. To render technical computations as simple as possible we will work also with a simplifie toric version, studing its main properties at K-theory level, and we will discuss how such calculations should be extended to the non abelian case. The associated relevant physics will be discussed
D-branes on C^3_6. Part I: prepotential and GW-invariants
No full textThis is the first of a set of papers having the aim to provide a detailed description of brane configurations on a family of noncompact threedimensional Calabi-Yau manifolds. The starting point is the singular manifold C^3/Z_6, which admits five distinct crepant resolutions. Here we apply local mirror symmetry to partially determine the prepotential encoding the GW-invariants of the resolved varieties. It results that such prepotential provides all numbers but the ones corresponding to curves having null intersection with the compact divisor. This is realized by means of a conjecture, due to S. Hosono, so that our results provide a check confirming at least in part the conjecture
Il mestiere delle lettere: metamorfosi di un “furioso scribacchiatore”
No full textIl saggio è incentrato sulla figura di Giuseppe Compagnoni e sui molti aspetti della sua attività di letterato
La nature de la guerre et l’intention juste
No full textNo one should go to war anyhow, or for any reason. The Just War tradition advocates peace and respect for human life, enemy or friend. Its criteria of justice provide guidance for limiting the natural evil of war. The fact that just war criteria of legitimacy can be flouted or ignored does not mean that they do not exist. These are criteria of moderation and love that impose limits on military actions. They awaken in us this human truth: the war of the (bestial) desires of domination must never prevail against the justice of war, at the risk otherwise of losing our humanity
On the geometry of C^3/\Delta_{27} and del Pezzo surfaces
No full textWe clarify some aspects of the geometry of a resolution of the orbifold X = C3/Δ27, the noncompact complex manifold underlying the brane quiver standard model recently proposed by Verlinde and Wijnholt. We explicitly realize a map between X and the total space of the canonical bundle over a degree 1 quasi del Pezzo surface, thus defining a desingularization of X. Our analysis relys essentially on the relationship existing between the normalizer group of Δ27 and the Hessian group and on the study of the behaviour of the Hesse pencil of plane cubic curves under the quotient
Teologia morale
No full textA quasi trent’anni dalla pubblicazione del Dizionario di teologia morale, il Gruppo Editoriale San Paolo ha deciso di realizzare un nuovo testo, completamente rinnovato. Il volume accoglie l’invito di papa Bergoglio al rinnovamento sapiente e coraggioso che è richiesto dalla trasformazione missionaria di una Chiesa in uscita.
UN NUOVO DIZIONARIO che si rifà ai criteri indicati dalla Veritatis gaudium di papa Francesco per la ricerca e lo studio della teologia.
UN’OPERA ENCICLOPEDICA che fornisce adeguate chiarificazioni e precisi orientamenti di fronte alle complesse e inquietanti questioni che assillano la coscienza dell’uomo di questo nostro tempo.
OLTRE 80 AUTORI, 140 VOCI, 1272 PAGINE
ARRICCHISCONO IL DIZIONARIO una proposta di lettura sistematica e una mappa concettuale, una bibliografia essenziale e un dettagliato indice analitico. L'opera è a cura di Paolo Benanti, Francesco Compagnoni, Aristide Fumagalli, Giannino Piana
Deceitful Prophecies: Knots of Time in Shakespeare’s "Macbeth"
No full textThis paper aims at exploring the ways in which the prophecies of the Weird Sisters in Shakespeare’s Macbeth voice the collision between clashing perceptions of time at the turn of the 17th century. Emphasis is laid upon the fact that the witches’ prophecies lead to the Macbeths’ conspiracy by disclosing to the eponymous hero the full potential and consequences of a metaphorical assassination of cyclical time. Then, it is argued that the prophecies in Shakespeare’s Scottish play do not merely counter the circularity typical of the fading system embodied by Duncan with new way(s) to experience time, but in fact reveal to Macbeth how to overcome the fear of failure and death by reducing all time dimensions to an all-encompassing, devouring present. The main focus are the temporal structures in the Sisters’ prophecies, whereby past, present, and future conflate
La collezione archeologica e il carteggio di Giambattista Compagnoni Natali di Montegiorgio
No full textIl lavoro si propone di ricostruire la figura e la collezione di Gian Battista Compagnoni Natali di Montegiorgio (1843-1920), attraverso il carteggio dello stesso disperso tra il Museo Archeologico di Ancona, il Museo preistorico ed Etnografico L. Pigorini e l'Archivio di Stato di Roma. Grazie al carteggio si sono potuti ricomporre i rapporti che il collezionista ha intrattenuto con i personaggi più in vista dell'archeologia del momento, tra cui Luigi Pigorini, Edoardo Brizio, Innocenzo Dall'Osso, etc. I nuclei della collezione del montegiorgese sono distribuiti tra vari Musei italiani, tra cui quelli sopracitati ed il Museo universitario di Jena, dove arrivò nel 1902 uno dei lotti più cospiscui della raccolta
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