Search results for "CIAM"
showing 10 items of 87 documents
Upper limit on the cosmic-ray photon flux above 1019 eV using the surface detector of the Pierre Auger Observatory
2008
A method is developed to search for air showers initiated by photons using data recorded by the surface detector of the Auger Observatory. The approach is based on observables sensitive to the longitudinal shower development, the signal risetime and the curvature of the shower front. Applying this method to the data, upper limits on the flux of photons of 3.8 x 10-3, 2.5 x 10-3; and 2.2 x 10-3 km-2 sr-1 yr-1 above 1019 eV, 2 x 1019 eV; and 4 x 1019 eV are derived, with corresponding limits on the fraction of photons being 2.0%, 5.1%, and 31% (all limits at 95% c.l.). These photon limits disfavor certain exotic models of sources of cosmic rays. The results also show that the approach adopted…
The Status of the ARGO Experiment at YBJ
2007
The ARGO-YBJ experiment, located at Yangbajing, Tibet, China, performed by a wide Sino-Italian collaboration, is designed to study cosmic rays, sub-TeV gamma ray sources and GeV Gamma Ray Burst (GRB) emission in the northern hemisphere, by means of detecting small size EAS (Extensive Air Shower) using a full coverage RPC (Resistive Plate Chamber) carpet. The central carpet of the detector is installed and put into operation to date, with 1900 m^2 of the carpet already operating since December 2004. With a trigger multiplicity of ≥60 hits, corresponding to a primary mode energy of 2 TeV, the angular resolution of EAS measurements is < 1 degree for showers with more than 500 recorded hits. We…
Software Timing Calibration of the ARGO-YBJ Detector
2009
The ARGO-YBJ experiment is mainly devoted to search for astronomical gamma sources. The arrival direction of air showers is reconstructed thanks to the times measured by the pixels of the detector. Therefore, the timing calibration of the detector pixels is crucial in order to get the best angular resolution and pointing accuracy. Because of the large number of pixels a hardware timing calibration is practically impossible. Therefore an off-line software calibration has been adopted. Here, the details of the procedure and the results are presented. (C) 2008 Elsevier B.V. All rights reserved.
Prove di pacciamatura con materiali organici su Origano (Origanum heracleoticum L.)
2005
La coltivazione delle piante aromatiche e medicinali, particolarmente quando condotta con i metodi dell’agricoltura biologica, si configura oggi come una possibilità di estremo interesse per il rilancio produttivo di numerose aree interne a rischio di marginalizzazione. Tuttavia, ancora numerosi sono gli aspetti da mettere a punto riguardo all’inserimento delle p.o. negli ordinamenti colturali italiani e siciliani in particolare, ed essi riguardano soprattutto interventi tecnici volti all’abbassamento del rapporto costo/ricavo. la messa a punto per queste dell’agrotecnica più opportuna, in grado contemporaneamente di: a. consentire l’ottenimento di rese ottimali, sia sul piano della quantit…
Observation of the cosmic ray moon shadowing effect with the ARGO-YBJ experiment
2011
Cosmic rays are hampered by the Moon and a deficit in its direction is expected (the so-called Moon shadow). The Moon shadow is an important tool to determine the performance of an air shower array. Indeed, the westward displacement of the shadow center, due to the bending effect of the geomagnetic field on the propagation of cosmic rays, allows the setting of the absolute rigidity scale of the primary particles inducing the showers recorded by the detector. In addition, the shape of the shadow permits to determine the detector point spread function, while the position of the deficit at high energies allows the evaluation of its absolute pointing accuracy. In this paper we present the obser…
Privacy, Sicurezza e Libertà nell’era della sorveglianza di massa e dell’emergenza terrorismo
Istigazione punibile e libertà di parola. Riflessioni in margine alla sentenza De Luca
2016
Il testo prende spunto dalla decisione del Tribunale di Torino, che ha riguardato il noto scrittore Erri De Luca, per chiarire e mettere a punto alcuni profili della teoria dell’istigazione a delinquere e i rapporti di questa con la libertà d’espressione. By commenting on the decision given by the Tribunal of Turin in the case of the renowned writer Erri De Luca, the paper clarifies some controversial aspects of the criminalization of the conduct of public encouragement to crime, as well as its relationships with the right to free speech.
Per una teoria della ragionevolezza in diritto civile
2014
Rovesciamento del platonismo in "Così parlò Zarathustra" di Nietzsche
2009
La filosofia Nietzscheana è tragicamente consapevole di non potere sfuggire alla trappola della moralità anche se ne da un giudizio negativo. Zarathustra è un tentativo di capovolgimento di questa moralità o del platonismo se per esso intendiamo un idealismo come pretesa di adattare tutto alle proprie visioni.
Healing Grief: A Commentary on Seneca's Consolatio ad Marciam
2023
Both our view of Seneca’s philosophical thought and our approach to the ancient consolatory genre have radically changed since the latest commentary on the Consolatio ad Marciam was written in 1981. The aim of this work is to offer a new book-length commentary on the earliest of Seneca’s extant writings, along with a revision of the Latin text and a reassessment of Seneca’s intellectual program, strategies, and context. A crucial document to penetrate Seneca’s discourse on the self in its embryonic stages, the Ad Marciam is here taken seriously as an engaging attempt to direct the persuasive power of literary models and rhetorical devices toward the fundamentally moral project of healing Ma…