Search results for "PIERRE"
showing 10 items of 231 documents
Limits on the diffuse flux of ultra-high energy neutrinos using the Pierre Auger Observatory
2012
Abstract The surface detector array of the Pierre Auger Observatory is sensitive to ultra-high energy neutrinos in the cosmic radiation. These particles can interact close to ground, both through charged and neutral currents in the atmosphere (down-going) and, for tau neutrinos, through the Earth-skimming mechanism (up-going) where a tau lepton is produced in the Earth's crust that can emerge and decay in the atmosphere. Both types of neutrino-induced events produce an inclined shower that can be identified by the presence of a broad time structure of signals in the water-Cherenkov detectors. Using data collected from the surface detector array of the Pierre Auger Observatory, we present th…
A Study for Cloud Parameter Retrieval from the IR Cloud Cameras of the AUGER Observatory
2009
The Pierre Auger Observatory operative in Argentina, studies the ultra-high energy cosmic rays with energies above 1018eV. The atmosphere is also monitored by a collection of different instruments. In this paper we present a study on the retrieval of the cloud coverage from the atmospheric monitoring data collected by the four IR cloud cameras placed in the sites of the Observatory. We discuss two different algorithms that supply pixel by pixel cloudiness information in the form of binary masks. The final objective of the study is collecting different algorithms to obtain a reliable set that allow to overcome most of the more frequent ambiguities due to particular cloud configurations and a…
Measurement of the Proton-Air Cross Section ats=57 TeVwith the Pierre Auger Observatory
2012
We report a measurement of the proton-air cross section for particle production at the center-of-mass energy per nucleon of 57 TeV. This is derived from the distribution of the depths of shower maxima observed with the Pierre Auger Observatory: systematic uncertainties are studied in detail. Analyzing the tail of the distribution of the shower maxima, a proton-air cross section of [505 +/- 22(stat)(-36)(+28)(syst)] mb is found.
Perfum antic dels temps de les fades: la crítica de Theodor W. Adorno a la música serial
2012
En aquest article oferim una anàlisi del context històric en què Theodor W. Adorno va formular la seva crítica de la música serial l'endemà de la Segona Guerra Mundial
Nella giostra della social photography
2018
Oggi la fotografia va ben oltre la fissazione dei ricordi. Il volume riprende la nota ricerca di Bourdieu relativa agli usi sociali della fotografia intorno alla metà degli anni Sessanta. Da questa si desume che un tempo gli scatti dei non professionisti, mediati dall'habitus di classe, intercettavano i momenti topici della vita sociale e le tipicità espresse da una cultura condivisa. Mentre le foto dei professionisti aspiravano a riconoscere i momenti decisivi in senso autoriale in vari ambiti (reportage, moda, paesaggio, pubblicità ). Oggi, in virtù dell'accelerazione sociale, siamo incerti sulla direzione della Storia. Tutti i fenomeni sono potenzialità del mondo, come tutte le immagini …
Pierre Broué, un historien dans le siècle
2012
International audience
Vers l’Elysée : Pierre Bérégovoy dans la campagne présidentielle de 1981
2013
International audience
Recensione di Aldo Marroni, L'arte dei simulacri: il démone estetico di Pierre Klossowski, Milano, COsta & Nolan, 2009
2012
Recensione del libro di Aldo Marroni
An edge-driven 3D region-growing approach for upper airway morphology and volume evaluation in patients with Pierre Robin sequence
2015
Abstract: Pierre Robin sequence (PRS) is a pathological condition responsible for a sequence of clinical events, such as breathing and feeding difficulties, that must be addressed to give the patient at least a chance to survive. By using medical imaging techniques, in a non-intrusive way, the surgeon has the opportunity to obtain 3D views, reconstruction of the regions of interest (ROIs), useful to increase understanding of the PRS patient’s condition. In this paper, a semi-automatic approach for segmentation of the upper airways is proposed. The implemented approach uses an edge-driven 3D region-growing algorithm to segment ROIs and 3D volume-rendering technique to reconstruct the 3D mode…