Search results for " rap"
showing 10 items of 561 documents
''Ai pentiti non credo...''. La percezione sociale dei collaboratori di giustizia in Sicilia.
2006
Il saggio presenta i risultati di una ricerca sulla percezione sociale dei collaboratori di giustizia condotta nelle nove province siciliane.
Prefazione
2010
n.a.
La cultura inglese e l’interesse per il patrimonio architettonico e paesaggistico in Sicilia, tra scoperte, evoluzione degli studi e divulgazione
2019
e will trace the evolution of an encounter between two cultures, the English and the SiSicilian culture, which, at a time of political and social change, discover the classical world and the Arab-Norman architecture. The enchanted charm of Sicily and its imposing and melancholic nature was crossed for two centuries by the exodus of an English world that will share the eternal romanticism of it throughout Europe, and is also represented by the exploit of publications requested and produced by the Anglo-Saxon world between the eighteenth and nineteenth centuries. John Ruskin arrived in Sicily in 1874 to discover the nature and the architecture of the island. A comparison with the English trav…
Small RNA‐binding protein RapZ mediates cell envelope precursor sensing and signaling in Escherichia coli
2019
Abstract The RNA‐binding protein RapZ cooperates with small RNAs (sRNAs) GlmY and GlmZ to regulate the glmS mRNA in Escherichia coli. Enzyme GlmS synthesizes glucosamine‐6‐phosphate (GlcN6P), initiating cell envelope biosynthesis. GlmZ activates glmS expression by base‐pairing. When GlcN6P is ample, GlmZ is bound by RapZ and degraded through ribonuclease recruitment. Upon GlcN6P depletion, the decoy sRNA GlmY accumulates through a previously unknown mechanism and sequesters RapZ, suppressing GlmZ decay. This circuit ensures GlcN6P homeostasis and thereby envelope integrity. In this work, we identify RapZ as GlcN6P receptor. GlcN6P‐free RapZ stimulates phosphorylation of the two‐component sy…
UNA CONFIGURAZIONE SMART HERITAGE PER I CONTESTI EURO-MEDITERRANEI
La ricerca intende proporre una strategia urbana e tecnologica costituita da elementi smart che sviluppino una capacità di progettazione tecnologica integrata su scala urbana ed edilizia, sovrapponendo al disegno della città smart contemporanea quella della valorizzazione del patrimonio culturale attraverso le nuove Tecnologie dell’Informazione e della Comunicazione (TIC). Attraverso la schedatura di alcune esperienze smart di appendici che raccolgono le strategie urbane di recupero più significative e di un glossario finale con i termini ricorrenti nel settore, la Dottoranda propone un punto di vista del modello Smart City che si lega al tema della valorizzazione urbana fornendo a pianific…
Nomograph for rapid technical and economic assessment of solar thermal systems for DHW production
2012
Abstract Different types of tools, software and empirical methods to size and assess the performance of solar thermal systems are available today. A quick and easy-to-use graphical tool is proposed here. It is based on a single diagram, called a nomograph, which embeds technical and economic information, allowing the optimisation of the size and performance of a solar thermal system starting from the main input parameters, such as the specific costs of the system and the auxiliary fuel. The optimal surfaces are calculated as a function of the fuel cost through several regressions made on data from the application of the F-Chart method for a set of system configurations. The authors have fou…
Dynamics and spectra of composition operators on the Schwartz space
2017
[EN] In this paper we study the dynamics of the composition operators defined in the Schwartz space of rapidly decreasing functions. We prove that such an operator is never supercyclic and, for monotonic symbols, it is power bounded only in trivial cases. For a polynomial symbol ¿ of degree greater than one we show that the operator is mean ergodic if and only if it is power bounded and this is the case when ¿ has even degree and lacks fixed points. We also discuss the spectrum of composition operators.
Composition operators on the Schwartz space
2018
[EN] We study composition operators on the Schwartz space of rapidly decreasing functions. We prove that such a composition operator is never a compact operator and we obtain necessary or sufficient conditions for the range of the composition operator to be closed. These conditions are expressed in terms of multipliers for the Schwartz class and the closed range property of the corresponding operator considered in the space of smooth functions.
Spring raptor migration at Ustica, southern Italy
2004
The island of Ustica, lying at 38°42’N 13°12’E in the Tyrrhenian Sea, is approximately 60 km north of western Sicily and 270 km northeast of the Cap Bon promontory in Tunisia (fig.1). Although covering an area of only 7,600 ha, its isolation makes it attractive to migrant birds. In order to establish the importance of Ustica for the spring migration of raptors in the Mediterranean basin, counts of migrating raptors were made from the highest point of the Falconiera promontory, which dominates the northeast coast of the island, between 22nd March and 20th May 2002.Each spring, thousands of raptors cross the Mediterranean Sea between Africa and southern Italy during their northward migration …
Il secondo concorso per il Parlamento di Ernesto Basile. Analisi e ricostruzione congetturale
2020
Lo studio si inquadra nel settore delle ricostruzioni congetturali di progetti a partire da disegni di archivio. Nel caso specifico, si tratta del progetto di Ernesto Basile per il secondo concorso per il Parlamento del Regno d’Italia, conclusosi nel 1889. È un progetto molto maturo, premiato dalla Commissione giudicatrice ex aequo insieme ad altri quattro, e conclude la fase dei concorsi romani (1882-89), segnata da un linguaggio classicista che permea i progetti per le sedi istituzionali. I disegni originari dell’opera, non realizzata, sono conservati presso la Dotazione Basile-Ducrot del Dipartimento di Architettura dell’Università di Palermo, e sono stati utilizzati per il rilievo, la v…