Search results for " Cost"
showing 10 items of 3966 documents
Antropizzazione costiera e posizione della linea di riva: la spiaggia di san leone (Agrigento)
2016
In questo lavoro viene descritto un metodo di studio applicato al monitoraggio di una spiaggia dalle particolari caratteristiche dinamiche, causate proprio dal crescente sviluppo antropico avuto negli ultimi 50 anni. Il caso studio è la spiaggia di San Leone (37°15′41″N 13°35′20″E) appartenente all’Unità Fisiografica n.10 e localizzata a sud della città di Agrigento, tra le foce del fiume Akragas a NW e la foce del fiume Naro a SE (Fig. 1). Dagli anni '70 ad oggi, la spiaggia è stata oggetto di molti cambiamenti che hanno prodotto disequilibri nelle dinamiche litoranee che si sono evidenziate nel tempo attraverso avanzamenti e/o arretramenti della linea e aree ad alta criticità da erosione.…
concorrenza e regolazione
2014
Estudio hospitalario del vértigo y mareo: aspectos clínicos y radiológicos
2020
Esta tesis doctoral trabaja sobre pacientes remitidos a cualquier especialidad de un hospital sin unidad de otoneurología por los síntomas vértigo y mareo. En una primera parte se analizan sus características demográficas y clínicas y se evalúan las derivaciones con el fin de obtener datos que permitan mejorar la calidad asistencial. También se analizan las pruebas de imagen realizadas en los pacientes con vértigo y mareo, para poder determinar su utilidad y establecer recomendaciones. Las conclusiones se resumen en los siguientes puntos: En el hospital hay una tasa anual de 1,6 primeras visitas por cada 1000 habitantes debido a los síntomas vértigo y mareo. De todos los pacientes derivados…
Una aproximación a la marcha mora a través del análisis musical de Als Ligeros
2021
En este estudio se realiza una aproximación conceptual a la marcha mora como género fundamental en la música de moros y cristianos mediante el análisis musical de Als Ligeros. Se describen los tres géneros musicales más carac-terísticos de este arte musical y se apuntan sus rasgos más destacados. Se realiza un análisis pormenorizado centra-do principalmente en los elementos más importantes de la Música Festera como son: el ritmo, la melodía y la forma, sin descuidar otros como la armonía o la instrumentación, constituyendo los primeros el eje base del estudio analítico. Este tipo de análisis consiste en desglosar una estructura musical final en elementos constitutivos más pequeños que forma…
Predicting Outcome of Aortic Dissection with Patent False Lumen by Computational Flow Analysis
2014
Although Type B aortic dissection (AoD) has better in-hospital survival than Type A AoD, the short- and long term outcome for patients remains challenging, with 50–80% deaths at 5-years. Dissection-related complications include rapid aortic expansion, impending rupture, and malperfusion syndromes. We aimed to assess hemodynamic implications of patients with patent false lumen (FL) of dissected aorta. Computational fluid dynamic analyses were performed on patient-specific aortic geometries reconstructed from computed tomography scans of 25 patients with AoDs, who were admitted in our hospital from 2007 to 2013. We used the development of acute complications and chronic aneurysmal evolution a…
Cost effectiveness of aortic valve therapies: a systematic review of the literature
2022
Background: Systematic review on the cost effectiveness of transcatheter aortic valve implantation (TAVI) to standard aortic valve replacement and medical management in high-risk elderly patients with severe aortic stenosis. Evidenced based systematic reviews are the core methodologies in health economics for evaluating cost effectiveness and medical effectiveness. Clarity and transparency of these reports can help to provide health care interventions accurately and reliably. Methods: In accordance with Preferred Reporting Items for Systematic reviews and Meta-Analyses, a systematic review on current literature for cost-effectiveness of TAVI, standard aortic valve replacement, and medical m…
Constitutive modeling of ascending thoracic aortic aneurysms using microstructural parameters.
2016
Ascending thoracic aortic aneurysm (ATAA) has been associated with diminished biomechanical strength and disruption in the collagen fiber microarchitecture. Additionally, the congenital bicuspid aortic valve (BAV) leads to a distinct extracellular matrix structure that may be related to ATAA development at an earlier age than degenerative aneurysms arising in patients with the morphological normal tricuspid aortic valve (TAV). The purpose of this study was to model the fiber-reinforced mechanical response of ATAA specimens from patients with either BAV or TAV. This was achieved by combining image-analysis derived parameters of collagen fiber dispersion and alignment with tensile testing dat…
Appello (evoluzione)
2014
La voce analizza l'istituto dell'appello penale nella fisionomia attuale nonché nella interpretazione che dovrebbe scaturire dall'orientamento europeo dopo le pronunce di condanna degli ordinamenti che non hanno garantito il rispetto del diritto al contraddittorio in caso di ribaltamento dell'esito liberatorio del primo grado. Infine si tenta una possibile soluzione normativa per allineare il giudizio di secondo grado alle linee guida fissate in sintonia con i dritti della Cedu.
Identification of stiffness,dissipation and input parameters of randomly excited non-linear systems: Capability of restricted potential models (RPM)
2006
Abstract A dynamic identification technique in the time domain for time invariant systems under random external forces is presented. This technique is based on the use of the class of restricted potential models (RPM), which are characterized by a non-linear stiffness and a special form of damping, that is a product of the input power spectral density (PSD) matrix and the velocity gradient of a non-linear function of the total mechanical energy. By applying It o ^ stochastic differential calculus and by specific analytical manipulations, some algebraic equations, depending on the response statistics and on the mechanic parameters that characterize RPM, are obtained. These equations can be u…
Domain decomposition in the symmetric boundary element analysis
2002
Recent developments in the symmetric boundary element method (SBEM) have shown a clear superiority of this formulation over the collocation method. Its competitiveness has been tested in comparison to the finite element method (FEM) and is manifested in several engineering problems in which internal boundaries are present, i.e. those in which the body shows a jump in the physical characteristics of the material and in which an appropriate study of the response must be used. When we work in the ambit of the SBE formulation, the body is subdivided into macroelements characterized by some relations which link the interface boundary unknowns to the external actions. These relations, valid for e…