Search results for "Toni"
showing 10 items of 8001 documents
Geodetic and geological evidence of active tectonics in south-western Sicily (Italy)
2014
Abstract Integrated geological, geodetic and marine geophysical data provide evidence of active deformation in south-western Sicily, in an area spatially coincident with the macroseismic zone of the destructive 1968 Belice earthquake sequence. Even though the sequence represents the strongest seismic event recorded in Western Sicily in historical times, focal solutions provided by different authors are inconclusive on possible faulting mechanism, which ranges from thrusting to transpression, and the seismogenic source is still undefined. Interferometric (DInSAR) observations reveal a differential ground motion on a SW–NE alignment between Campobello di Mazara and Castelvetrano (CCA), locate…
Association of Serum Procalcitonin With Cardiovascular Prognosis in Coronary Artery Disease
2011
Background: Procalcitonin (PCT) is an established biomarker for the diagnosis of sepsis. Evidence is growing that PCT concentration correlates with the extent of atherosclerosis and prognosis in patients with coronary artery disease (CAD). Methods and Results: A total of 2,131 patients with CAD were followed up for a median of 3.6 years. During follow-up, death from cardiovascular causes was registered in 95 patients and non-fatal myocardial infarction in 85 patients. Median and quartile 1 and 3 are reported for PCT concentration. Patients who died of cardiovascular causes had higher PCT concentrations [0.021 (0.012/0.036) ng/ml vs. 0.015 (0.010/0.023) ng/ml; P<0.0001]. Patients with acute …
1,4-regioselective iodofunctionalizations of 1,3-butadiene
1988
Abstract Addition reactions of benzene and acetonitrile to 1,3-butadiene are described. This new iodofunctionalization process proceeds “via” iodonium ion-allylic cation equilibrium and gives regioselectively 1,4-adducts, which can be alternatively obtained by acid treatment of the 1,2-derivative 8 .
Adiabatic evolution of quantum-mechanical systems
1991
A description of the adiabatic approximation in terms of the time-evolution operator is presented. Corrections to the approximation are studied, and it is seen that these can be obtained in a simple way in the case of a rapidly oscillating Hamiltonian.
Geometric factors in the adiabatic evolution of classical systems
1992
Abstract The adiabatic evolution of the classical time-dependent generalized harmonic oscillator in one dimension is analyzed in detail. In particular, we define the adiabatic approximation, obtain a new derivation of Hannay's angle requiring no averaging principle and point out the existence of a geometric factor accompanying changes in the adiabatic invariant.
Revealing Anisotropy in a Paul Trap Through Berry Phase
2006
When an ion confined in an anisotropic bidimensional Paul trap is subjected to a laser beam oriented along an arbitrary direction, the interaction between its electronic and vibrational degrees of freedom is described by a time-dependent Hamiltonian model as a consequence of the lack of symmetry. Appropriately choosing the laser frequency, the Hamiltonian model turns out to be sinusoidally oscillating at the difference between the proper frequencies of the center of mass of the ion. Thus, if the anisotropy of the trap is sufficiently small, the evolution of the system can be considered as adiabatic. In the context of this physical situation we have calculated the Berry phase acquired in a c…
Alfred Gotthold Meyer, Canova (Bielefeld-Leipzig, Velhagen & Klasing 1898), introduzione e traduzione in italiano a cura di Alexander Auf der Heyde, …
2014
Translation, comment and introduction to Alfred Gotthold Meyer's illustrated monograph "Canova" (Bielefeld-Leipzig 1898). This edition includes furthermore indexes and a critical catalogue of all graphic and photographical sources used for the autotypes.
Canova divulgato tra «Können» e «Wollen» nell’opera di Alfred Gotthold Meyer
2014
This article is a critical introduction to the Italian translation of Meyer's Canova monograph (1898), it focuses on the editorial process and on the use of photography during this early stage of popular art history. Further consideration is given to Meyer's critical point of view in the context of the German fin-de-siècle art discourse (Burckhardt, Springer, Bode, Wölfflin, Hildebrand).
Los años de la hegemonía socialista. 1983-1995
2007
"Los años de la hegemonía socialista. 1983-1995" es un capítulo escrito por Benito Sanz en la obra colectiva editada por el diario Levante: "La Gran Historia de la Comunitat Valenciana. La democracia reconquistada. De la Transición a la normalización democrática (1975-2008)", tomo 10, dirigida por Francesc A. Martínez y Antonio Laguna. Valencia 2007. "Los años de la hegemonía socialista. 1983-1995" recoge las tres legislaturas en las que el PSPV-PSOE gobernó de forma hegemónica casi todas las instituciones publicas de España, la Comunidad Valenciana, así como las tres diputaciones provinciales, los tres ayuntamientos de las capitales de las provincias y la gran mayoría de los municipios. Jo…
Fissurectomy and anal advancement flap for anterior chronic anal fissure without hypertonia of the internal anal sphincter in females.
2009
AIM: Lateral internal sphincterotomy is considered the surgical treatment of choice for chronic anal fissure after failure of medical therapy but it risks continence. The aim of the study was to evaluate fissurectomy with advancement flap for anterior chronic anal fissure (CAAF) resistant to medical therapy. METHOD: Sixteen women with CAAF without hypertonia of the internal anal sphincter, unresponsive to previous medical treatment, were included in the study. Absence of hypertonia was defined as a maximum anal resting pressure (MRP) of less than 85 mmHg. All patients underwent fissurectomy with an advancement skin flap. RESULTS: Complete healing occurred in all patients within 30 days. The…