Projective moduli space of semistable principal sheaves for a reductive group

Let X be a smooth projective complex variety, and let G be an algebraic reductive complex group. We define the notion of principal G-sheaf, that generalises the notion of principal G-bundle. Then we define a notion of semistability, and construct the projective moduli space of semistable principal G-sheaves on X. This is a natural compactification of the moduli space of principal G-bundles. This is the announcement note presented by the second author in the conference held at Catania (11-13 April 2001), dedicated to the 60th birthday of Silvio Greco. Detailed proofs will appear elsewhere.Comment: 10 pages, LaTeX2e. Submitted to the conference proceedings of "Commutative Algebra and Algebraic Geometry", Catania, April 200

Filming Bronte's Moorish soundscape : an aural analysis of five Wuthering Heights film adaptations

This paper dissects the sound-effects codes of the Wuthering Heights film versions directed by Wyler, Bunuel, Fuest, Yoshida and Kosminsky in order to determine to what extent these film adaptors succeed in echoing thematically the novel's essential 'wuthering'. What such an analysis reveals is that, while Kosminsky 's soundtrack is more consistently analogous to Bronte's moorish soundscape in its recreation of such crucial aural motifs as canine baying, avian trilling and gusty wind, even the soundtracks devised by Wyer, Yoshida, Fuest and Bunuel have their enviable moments of undoubted Brontean significance.peer-reviewe

Notes on two interesting specimens of Hippotion celerio (Linnaeus) (Lepidoptera, Sphingidae)

Moths of the genus Hippotion Hübner, 1822 (Family: Sphingidae) are distributed in Africa, Central and southern Asia and as migrants in southern Europe and Australia. Currently, around 30 species are accommodated in this genus. Hippotion celerio is a regular migrant to the Maltese Islands. On the onset of warmer weather conditions, colonies establish themselves in North Africa and Europe. It is a resident species in the Azores and the Atlantic coast of Morocco and most probably also in the Levant, the Arabian Peninsula and Egyptpeer-reviewe

The Hasty Pees in Sicily

Account given by Major A.R. Campbell Officer Commanding ‘A’ Company and Captain N.R. Waugh, MC, Officer Commanding ‘D’ Company, Hastings & Prince Edward Regiment, on 18 August 1943, at Battalion Rest Area near MILITELLO in val di CATANIA, SICILY

2. Wochenbericht M111

FS METEOR Reise M111 Catania – Catania 10.10.14 – 01.11.14 2. Wochenbericht vom 24. Okt. 201

Neutrinos and Cosmology: an update

We review the current cosmological status of neutrinos, with particular emphasis on their effects on Big Bang Nucleosynthesis, Large Scale Structure of the universe and Cosmic Microwave Background Radiation measurements.Comment: 4 pages, 1 figure, to appear in the proceedings of IFAE, Catania 200

Hyperon ordering in neutron star matter

We explore the possible formation of ordered phases in neutron star matter. In the framework of a quantum hadrodynamics model where neutrons, protons and Lambda hyperons interact via the exchange of mesons, we compare the energy of the usually assumed uniform, liquid phase, to that of a configuration in which di-lambda pairs immersed in an uniform nucleon fluid are localized on the nodes of a regular lattice. The confining potential is calculated self-consistently as resulting from the combined action of the nucleon fluid and the other hyperons, under the condition of beta equilibrium. We are able to obtain stable ordered phases for some reasonable sets of values of the model parameters. This could have important consequences on the structure and cooling of neutron stars.Comment: 6 pages, 2 figures. To appear in the proceedings of the 4th Catania Relativistic Ion Studies: Exotic Clustering (CRIS 2002), Catania, Italy, 10-14 Jun 200

CCD and photon-counting photometric observations of asteroids carried out at Padova and Catania observatories

We present the results of observational campaigns of asteroids performed at Asiago Station of Padova Astronomical Observatory and at M.G. Fracastoro Station of Catania Astrophysical Observatory, as part of the large research programme on Solar System minor bodies undertaken since 1979 at the Physics and Astronomy Department of Catania University. Photometric observations of six Main-Belt asteroids (27 Euterpe, 173 Ino, 182 Elsa, 539 Pamina, 849 Ara, and 984 Gretia), one Hungaria (1727 Mette), and two Near-Earth Objects (3199 Nefertiti and 2004 UE) are reported. The first determination of the synodic rotational period of 2004 UE was obtained. For 182 Elsa and 1727 Mette the derived synodic period of 80.23+/-0.08 h and 2.981+/-0.001 h, respectively, represents a significant improvement on the previously published values. For 182 Elsa the first determination of the H-G magnitude relation is also presented.Comment: 19 pages, 11 figures, accepted for publication in Planetary and Space Scienc