6,305 research outputs found
Comunicazione pubblica e pubblica amministrazione. Uno studio dell?univerdsità degli studi di Palermo - Dipartimento di Scienze sociali
No full textMulticulturalismo e comparazione. Postfazione a D. Amirante, V. Pepe (cur.), Stato democratico e società multiculturale. Dalla tutela delle minoranze al riconoscimento delle diversità culturali)
No full textLo studio sottopone a critica l'utilizzazione in termini occidentali dell'espressione "diritti", soffermandosi sullo scontro tra diritti individuali e diritti comunitari (o identitari
Nonintersecting ryser hypergraphs
No full textA famous conjecture of Ryser states that every r-partite hypergraph has vertex cover number at most r 1 times the matching number. In recent years, hypergraphs meeting this conjectured bound, known as r-Ryser hypergraphs, have been studied extensively. It was proved by Haxell, Narins, and Szabó that all 3-Ryser hypergraphs with matching number v > 1 are essentially obtained by taking v disjoint copies of intersecting 3-Ryser hypergraphs. Abu-Khazneh showed that such a characterization is false for r = 4 by giving a computer generated example of a 4-Ryser hypergraph with v = 2 whose vertex set cannot be partitioned into two sets such that we have an intersecting 4-Ryser hypergraph on each of these parts. Here we construct first infinite families of r-Ryser hypergraphs, for any fixed matching number v > 1, that are truly nonintersecting in the sense that they do not contain two vertex disjoint intersecting r-Ryser subhypergraphs
The Genres of Rhetorical Speeches in Greek and Roman Antiquity
No full textIn The Genres of Rhetorical Speeches in Greek and Roman Antiquity, Cristina Pepe offers a complete overview of the concept of speech genre within ancient rhetoric. By analyzing sources dating from the 5th-4th century BC, the author proves that the well-known classification in three rhetorical genres (deliberative, judicial, epideictic), introduced by Aristotle, was rooted in the debate concerning the forms and functions of the art of persuasion in classical Athens. Genres play a leading role in Aristotle’s Rhetoric, and the analysis of considerable sections of the treatise shows profound links between the characterization of the rhetorical genres and Aristotelian philosophy as a whole. Finally, the volume explores the developments of the theory of genres in Hellenistic and Imperial rhetoric
Virtual network, emotional capital and social movements
No full textIn the first chapter, I examine the strong impact of social media on the creation of virtual communities and if and how mobile technology and social networks represent elements for relational occasions, in order to and build of bridging social capital. Relational occasions are the bridges that individuals use and “cross” to create sharing on issues of social interest. Social media transform the traditional characteristics of so- cial relationships in the pre-digital age. The way technology is used changes the quality, frequency, availability, selection and exit mechanisms of social relationships. In this way, social re- lationships modify the mechanisms that generate social and emotional capital. The presence of emotional capital and its creation are resources that allows individuals to translate indi- vidual social items into civic engagement and social participa- tion. These diluted forms of participation, connected to social rituals, are celebrated online. We are facing a form of relational globalization. Technological innovation and its “social need” have helped to create the current relational forms increasingly characterized by the emotional dimension, by the creation of emotional capital and by an increasingly thematic and post-ide- ological political participation
L’ambiente e l’energia in Italia
No full textIL SAGGIO ANALIZZA LA DISCIPLINA DELL'ENERGIA IN ITALIA E I RAPPORTI CON LA TUTELA DELL'AMBIENTE E LO SVILUPPO SOSTENIBILE
(d, σ) -Veronese variety and some applications
No full textLet K be the Galois field of order q^t , A = Aut(K) be the automorphism group of K and σ = (σ0, . . . , σd−1) in A^d , d ≥ 1. In this paper the following
generalization of the Veronese map is studied:
νd,σ : 〈v〉 ∈ PG(n − 1, K) −→ 〈v ^σ0 ⊗ v^ σ1 ⊗ · · · ⊗ v^ σd−1 〉 ∈ PG(n d − 1, K).
Its image will be called the (d, σ )-Veronese variety Vd,σ . We will show that Vd,σ is the Grassmann embedding of a normal rational
scroll and any d + 1 points of it are linearly independent. We give a characterization of d + 2
linearly dependent points of Vd,σ and for some choices of parameters, Vp,σ is the normal
rational curve; for p = 2, it can be the Segre’s arc of PG(3, q^t ); for p = 3 Vp,σ can be also a
|Vp,σ |-track of PG(5, q^t ). Finally, investigate the link between such points sets and a linear
code Cd,σ that can be associated to the variety, obtaining examples of MDS and almost MDS codes
Le forme e le pratiche della distanza sociale a Palermo (paragrafo 7 -Partecipazione politica e distanza sociale. Strategie e obiettivi di dedistanziamento, di vincenzo Pepe)
No full textIl contributo cerca di indagare il tipo di rapporto che esiste tra distanza sociale e partecipazione politica. Le osservazioni empiriche confermano la particolare forma che assume la declinazione della partecipazione politica (esercitata nelle sue varie forme) presente nel Mezzogiorno. Questa risulta caratterizzata da una forte intensità della distanza dalla politica quale dimensione particolare rispetto al generale fenomeno della distanza sociale
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