200,843 research outputs found
Studies of water in confinement by experiments and simulations
No full textExperimental and computational studies of the properties of water confined in different environments are reviewed. Particular emphasis is given to thermodynamics and microscopic structure; the diffusional dynamics is also considered. The need for studies of the vibrational dynamics is pointed out
Underwater geomorphology of the rocky coastal tracts between Finale Ligure and Vado Ligure (western Liguria, NW Mediterranean Sea)
No full textThe western part of the Liguria Region (NW Mediterranean Sea) has been reported as tectonically stable to slowly uplifting since the Late Pleistocene. Despite good knowledge of the coastal geomorphological features above sea level, very little information is available on the characteristics of the underwater coastlines. Direct and indirect underwater surveys carried out in the area between Vado Ligure and Finale Ligure (Western Liguria) allowed the identification of several surfaces of marine origin, in four sites, at three depth intervals: 8-13. m, 17-23. m and 27-30. m. These values appear to be in bathymetric analogy with those reported by other authors along the Italian coastlines, in areas where the tectonic movements along the Late Quaternary are considered negligible on the basis of the elevation of the MIS 5.5 shoreline. Although few chronological constraints are possible due to the lack of dateable material, the marine morphologies identified in this study constrain their ages to the Middle and Late Quaternary. © 2010 Elsevier Ltd and INQUA
Structural Properties of High and Low Density Water in a Supercooled Aqueous Solution of Salt
No full text"We consider and compare the structural properties of bulk TIP4P water and of a sodium chloride aqueous solution in TIP4P water with concentration c = 0.67 mol\/kg, in the metastable supercooled region. In a previous paper (Corradini, D.; Rovere, M.; Gallo, P. J. Chem, Phys. 2010, 132, 134508) we found in both systems the presence of a liquid liquid critical point (LLCP). The LLCP is believed to be the end point of the coexistence line between a high density liquid (HDL) and a low density liquid (LDL) phase of water. In the present paper we study the different features of water water structure in HDL and LDL both in bulk water and in the solution, We find that the ions are able to modify the bulk LDL structure, rendering water water structure more similar to the bulk HDL case. By the study of the hydration structure in HDL and LDL, a possible mechanism for the modification of the bulk LDL structure in the solution is identified in the substitution of the oxygen by the chloride ion in oxygen coordination shells.
Sisto IV e il sovrapporta Basso Della Rovere d’Aragona. Architettura e scultura a Savona nel Rinascimento
No full text19 Novembre 1479: un’alleanza dinastica, due nobili
rampolli, un regale matrimonio, un triste e rapido
epilogo. Queste pagine ricostruiscono la storia del
magnifico bassorilievo oggi nella collezione Acton di
Villa La Pietra a Firenze, commissionato per celebrare
le nozze tra Antonio Basso Della Rovere, nipote di papa
Sisto IV, e Caterina Marzano d’Aragona, nipote del re
Ferdinando I di Napoli. Le rappresentazioni araldiche
dei tre stemmi non lasciano dubbi sull’identificazione
dei personaggi e degli eventi e ci portano a ritrovare
l’originaria collocazione dell’opera, nata come
sovrapporta del portale principale del palazzo Basso
Della Rovere in piazza della Maddalena a Savona. In un
serrato confronto con Roma, questo studio mette in luce
alcuni inediti passaggi sulle origini della famiglia Della
Rovere e riconsegna alla Savona di fine Quattrocento il
suo ruolo di protagonista politico, culturale e artistico.November 19, 1479: a dynastic alliance, two noble scions, a regal wedding, a sad and rapid epilogue. These pages reconstruct the history of the magnificent marble relief now in the Acton collection at Villa La Pietra in Florence, commissioned to celebrate the marriage between Antonio Basso Della Rovere, nephew of Pope Sixtus IV, and Caterina Marzano d'Aragona, the niece of King Ferdinand I of Naples. The heraldic symbols of the three coats ofarms leave no doubt about the identities of the characters and events surrounding its creation, and lead us to the original location of the work, born as the overdoor to the main portal of the Basso Della Rovere Palace in piazza della Maddalena in Savona. Through close examination of the Della Rovere in Rome, this study highlights some previously unknown facts about the family’s origins and returns Savona to its role as a political, cultural, and artistic protagonist in late fifteenth-century Italy
Sixtus IV and the Basso Della Rovere d’Aragona Overdoor. Architecture and Sculpture in Renaissance Savona
No full textNovember 19, 1479: a dynastic alliance, two noble scions, a regal wedding, a sad and rapid epilogue. These pages reconstruct the history of the magnificent marble relief now in the Acton collection at Villa La Pietra in Florence, commissioned to celebrate the marriage between Antonio Basso Della Rovere, nephew of Pope Sixtus IV, and Caterina Marzano d'Aragona, the niece of King Ferdinand I of Naples. The heraldic symbols of the three coats ofarms leave no doubt about the identities of the characters and events surrounding its creation, and lead us to the original location of the work, born as the overdoor to the main portal of the Basso Della Rovere Palace in piazza della Maddalena in Savona. Through close examination of the Della Rovere in Rome, this study highlights some previously unknown facts about the family’s origins and returns Savona to its role as a political, cultural, and artistic protagonist in late fifteenth-century Italy
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