1,721,111 research outputs found
I vertebrati delle isole: le isole minori
No full textThe presence of vertebrate remains of Pleistocene age on the Italian small islands, indicates periods of insularity, characterized by endemic forms (Lampedusa), or periods of contact with the mainland characterized by “normal” continental species (Elba, Giglio, Giannutri, Formiche di Burrano Favignana, Levanzo). In two islands (Pianosa and Capri) faunas of both types have been collected, testifying alternative phases of insularity and contact with the mainland
A Computational framework to design optimally loaded supercavitating hydrofoils by differential evolution algorithm and a new viscous lifting line method
No full textThe engineering design of a three dimensional submerged hydrofoil operating at very high speeds is obtained leveraging a Differential Evolution (DE) approach. The final goal is to identify the optimal load distribution over the span of a super-cavitating hydrofoil by using a design by optimization approach driven by hydrodynamic analysis of complex, turbulent, multi-phase flows. We achieve this goal by modeling the load distribution over the hydrofoil by means of a B-spline curve, which provides a rigorous parametric description of the hydrofoil operating conditions through the points of the load distribution control polygon. The parametric model includes design variables representing the most relevant hydrofoil shape parameters. We predict hydrodynamic performance by means of a Viscous Lifting Line method specifically conceived for the application targeted in the present study. This computational model accounts for the strong non-linear hydrodynamic characteristics of super-cavitating hydrofoils. We demonstrate the validity of the proposed design by optimization framework for high speed super-cavitating hydrofoils showcasing two design applications, namely a fully submerged hydrofoil operating close to a rigid boundary and a surface-piercing hydrofoil with variable dihedral angle. A statistical analysis of DE algorithm is performed to assess its performance on such an engineering design problem
UTILIZZO DELLA MESOTERAPIA NEL TRATTAMENTO DEL DOLORE NEI PAZIENTI CON DISTONIA CERVICALE: PROVE DI EFFICACIA IN UN PICCOLO CAMPIONE DI SOGGETTI
No full textSi valutano gli affetti della somministrazione per via mesoterapica di analgesici e miorilassanti nel trattamento del dolore nei pazienti affetti da distonia cervicale. I risultati ottenuti possono essere di interesse allo scopo di ridurre gli effetti avversi che spesso si presentano dopo trattamento a lungo termine con farmaci antinfiammatori e analgesici convenzionali di uso comune in questa categoria di pazienti
Campagna di scavo 2003 alla Grotta di San Teodoro (Acquedolci - Messina): primi dati faunistici e stratigrafici
No full textProlonged intracortical delay of long-latency reflexes: Electrophysiological evidence for a cortical dysfunction in multiple sclerosis. Brain Res. Bull., 2006 (in press)
No full textThe molluscan fauna from the upper Pleistocene vertebrate-bearing deposits of S. Teodoro Cave (North-eastern Sicily).
No full text
Blink-related broad-band EEG oscillations at rest, precuneus and consciousness
No full textSi descrivono le modificazioni EEg correlate all'ammiccamento spontane
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