109,447 research outputs found
Edizione critica di V. Padula, Teatro, premessa di G. Ferroni
No full textIl volume contiene, in edizione critica e commentata, i due testi teatrali pubblicati da Vincenzo Padula, a cominciare dal più famoso ed essenziale dramma "Antonello, capo-brigante calabrese", lo straordinario ‘documento’ sul rapporto tra brigantaggio e potere politico che traduce in forma letteraria le tesi esposte nella rivista "Il Bruzio": un’opera che dimostra l’ardore della militanza di Padula negli anni immediatamente successivi all’Unità d’Italia e la sua forte pietas per la Calabria. All’"Antonello" segue la farsetta "I tre Artisti": una commedia leggera e divertente in cui l’autore non rinunciò però ad esprimere le proprie idee sulla letteratura e sulle arti contemporanee.
Per l’"Antonello", dopo un esame accurato delle tre edizioni pubblicate dall’autore (a puntate nella rivista "Il Bruzio" tra agosto 1864 e luglio 1865, a Cosenza presso Migliaccio nel 1865, e a Napoli presso Androsio nel 1878), si è scelto di porre a testo non la redazione definitiva ma quella del 1865, in cui meglio si rivela l’orizzonte giornalistico, sociologico e antropologico che caratterizza il dramma. Per "I tre Artisti" si è scelto invece il testo del 1878. Le giustificazioni delle scelte sono contenute nei "Criteri di edizione" e nelle proposte di "Correzioni", ai quali per l’"Antonello" si aggiungono due "Apparati critici", ‘genetico’ ed ‘evolutivo’ (pp. 187-216).
Nell’"Introduzione" (pp. 5-73) si propone una ricostruzione storica e critica dell’attività teatrale di Padula, dai modelli letterari ai rapporti con la letteratura e la politica coeve fino alle scelte metriche, linguistiche e stilistiche, e si offre una lettura globale delle due opere pubblicate.
Nel commento ai testi, sobrio, si cerca di far luce sui passi oscuri, i riferimenti storici, le espressioni dialettali e i precedenti letterari.
La "Premessa" di Giulio Ferroni sottolinea in particolare come l’"Antonello" "si inscriva a pieno titolo nelle speranze risorgimentali, nel fervore suscitato dalla creazione dello stato unitario" (p. XXXII).
Nell’”Introduzione” sono rifusi alcuni saggi precedentemente pubblicati: “La data di composizione dell’’Antonello’ di Vincenzo Padula”, in “La Rassegna della letteratura italiana”, CIV (2000), 1, pp. 85-90; “Lettura di ‘Antonello’, dramma in prosa di Vincenzo Padula”, in “Giornale storico della letteratura italiana”, CLXXVIII (2001), 584, pp. 553-78; “Calabria ‘contro’: Vincenzo Padula. Saggio di edizione critica e annotata dell’’Antonello’”, in “Per Carlo Muscetta”, a cura di Novella Bellucci e Giulio Ferroni, Bulzoni, Roma 2002, pp. 197-212
Photoisomerization dynamics of spiropyran: A surface-hopping investigation
No full textIn the present work, we performed a computational investigation of the photoisomerization of spiro[1,3-dihydroindole-2,2′-chromene] [spiropyran (SP)] to merocyanine. The electronic energies and wavefunctions were obtained from configuration interaction calculations, using the floating occupation molecular orbital method, in a semiempirical framework. The parameters of the semiempirical Hamiltonian were re-optimized to reproduce ab initio literature data for SP. In our dynamics simulations, we considered, besides S0, the excited states S1, S2, and S3, which are very close in energy in the Franck-Condon region. We obtained a singlet lifetime of 0.67 ps, in line with the experimental results. We found the photoisomerization quantum yield to depend on the electronic state initially populated
On the Benard problem
No full textIn literature there is no mathematical proof of the experimentally trivial stability of the
rest state for a layer of compressible fluid heated from above. In the case of layer heated
from below it is known that the system shows a threshold in the temperature gradient below
which the fluid is not sensible to the imposed difference of temperature. Only semi empirical
justifications are available for this phenomenon, see [6].
Neglecting the thermal conductivity, we are able to prove that for a layer of compressible
fluid between two rigid planes kept at constant temperature, the rest state is linearly stable
for every values of the parameters involved in two cases: a) the layer is heated from above (see
section 3); b) the layer is heated from below and the gradient of temperature imposed is less
then a precise quantity, namely g=cp, where g is the gravity constant, and cp is the specific
heat at constant pressure, known as adiabatic gradient , the same that we find in Jeffreys’
pap
Accentramento e differenziazione nella gestione dell’emergenza pandemica
No full textAn analysis of the impact of the COVID-19 pandemic on the Italian constitutional order has to focus on the relations between the State and the Regions during the crisis. The pandemic crisis was a national one, although it affected Italian Regions unequally. Furthermore, healthcare represents the core of regional policies: For this reason, Regions almost inevitably came to the forefront during the crisis. This article looks into the regional response to the COVID-19 crisis against the background of the relations between the State and the Regions. The article is divided into three parts. First, it focuses on the most important legal tools during the crisis, the Prime Minister's decrees, and their impact on the Italian regional model. Second, it focuses on how, in legal terms, the state and regional acts dealing with COVID-19 can coexist. Third, it presents and discusses the measures adopted by the presidents of the Regions for this purpose. In doing so, the chapter focuses on three cases: Lombardy, Veneto, and Campania
Structure of the linearized problem for compressible parallel fluid flows
No full textWe consider the linearized compressible Navier-Stokes equation near a parallel flow in a cylindrical domain restricting our study to perturbations periodic in the generatrix direction. For any parameter values, we show that the initial value linear evolution problem is solved by the direct sum of a (strictly) contraction semi-group and an analytic semi-group. Any unbounded in time solution of this linear problem comes from isolated eigenvalues with finite multiplicities, which have non negative real part, and whose imaginary part is bounded. In addition, we precise the structure of the spectrum of the generator of the semi-group, locating the essential spectrum stricly on the left side of the complex plane. © 1997 Università degli Studi di Ferrara
Italy: The Impact of the Pandemic Crisis on the Relations between the State and the Regions
No full textOn the linearized problem for a second grade fluid around the 3-d Poiseuille flow
No full textThe linearized problem for a second grade fluid around the 3-d Poiseuille flow is studied and a stability result is given
Untangling the Rise of Coopetition: The Intrusion of Competition in a Cooperative Game Structure
No full textStrategy research on inter-firm cooperation has been commonly
affected by a collaborative bias, implicitly assuming that firms interact among
each other on the basis of fully converging interests and goals. Yet, plenty of
empirical evidence shows that cooperation is affected by the intrusion of competitive
issues and that consequently results in a game structure that actually
moves away from the ideal circumstance of complete convergent interests.
The purpose of this paper is twofold. First, it proposes the notion of cooperation
as a truly coopetitive game, where firms interact among each other on
the basis of a partially convergent interest structure. Second, it develops a
series of propositions linking the rise of coopetition to a set of, respectively,
environment-related and firm-related factors in order to explain the drivers of
the intrusion of competitive issues within a cooperative game structure. The
study eventually provides relevant implications for strategy research that we
discuss in the final section
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