1,796 research outputs found
Incontro prof. E. Cosenza, Prof. B. De Vivo e prof. G. Rolandi: “Napoli tra due vulcani: la salvaguardia della popolazione a rischio”
No full textRiscchio vulcanico, Piano di evacuazione, Vesuvio, Campi Flegre
Effect of palaeomorphology on facies distribution of the Campania Ignimbrite in the northern Campania Plain, southern Italy
No full textThe Campania Ignimbrite eruption (CI – 39 ka) is of the most explosive super-eruptions of the last 200 ka in Europe, that generated about 250-300 km3 of ignimbrite deposit venting from fissural faults of the Campania Plain, southern Italy. The pyroclastic deposits associated to this event show different lithofacies from the vent to the medial-distal part reflecting changing in style of deposition and/or palaeo-environmental setting. Based on some 1000 stratigraphic well logs and previous studies, a qualitative restoration was made of the morphology of the Campania Plain, prior to the CI eruption. According to our interpretation, from the proximal area towards NNW, four main palaeogeographic domains can be recognized, which conditioned the medial/distal distribution of the CI lithofacies and their depositional and early diagenetic environments across the plain
Deep venous thrombosis and previous myocardial infarction in mild factor XII deficiency: a risk factor for both venous and arterial thrombosis.
No full textPtisana rolandi-principis Christenh.
No full textPtisana rolandi-principis (Rosenst.) Christenh.: New Caledonia. Plateau de Dogny, 26.IX.2016, Perrie et al. 7694 (WELT P028627), GenBank: OM296024, OM296031.Published as part of Shepherd, Lara D., Murdock, Andrew G., Amice, Rémy & Perrie, Leon R., 2023, A synopsis of Ptisana Murdock ferns (Marattiaceae) in New Caledonia based on sequence data and morphology with the recognition of a new vulnerable species, P. soluta (Compton) Murdock & Perrie, comb. nov., stat. nov., pp. 41-59 in Adansonia (3) (3) 45 (3) on page 57, DOI: 10.5252/adansonia2023v45a3, http://zenodo.org/record/766506
A critical point in the distribution of lepton energies from the decay of a spin-1 resonance
No full textAbstract We consider a spin-1 resonance produced with an arbitrary spectrum of velocities and decaying into a pair of massless leptons, and we study the probability density function of the energy of the leptons in the laboratory frame. A special case is represented by the production of W bosons in proton-proton collisions, for which the energy of the charged lepton from the decaying W can be measured with sufficient accuracy for a high-precision measurement of M W . We find that half of the resonance mass is a special value of the lepton energy, since the probability density function at this point is in general not analytic for a narrow-width resonance. In particular, the higher-order derivatives of the density function are likely to develop singularities, such as cusps or poles. A finite width of the resonance restores the regularity, for example by smearing cusps and poles into local stationary points. The quest for such points offers a handle to estimate the resonance mass with much reduced dependence on the underlying production and decay dynamics of the resonance
Vesuvius: volcanic hazard and Civil Defense
No full textthe paper discuss the wrong delimitation of the Red Zone around the Vesuvius and indicates alternative solutions following scientific criteria. Also it discuss the wrong decision of the location for the building of the largest civil hopsital of southern Italy in the Red Zone of Vesuviu
THE AVELLINO PLINIAN ERUPTION OF SOMMA-VESUVIU (3670 yr B.P.): THE PROGRESSIVE EVOLUTION FROM MAGMATIC TO HYDROMAGMATIC STYLE.
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