Search results for "Culturali"

STUDIO DI SISTEMI COMPLESSI DI INTERESSE IN FISICA APPLICATA TRAMITE DIFFERENTI METODOLOGIE DI ANALISI

2011

A mathematical approach to model diffusion properties of sedimentary rocks relevant to Sicily cultural heritage

2007

Cultural heritage vestiges represent complex physical systems, able to interact with the environment through continuous exchanges of heat and fluids (water, air). In this wide context, particular relevance is assumed by transport phenomena and diffusion of pollutant, vehiculated inside the considered structure by water itself. Interaction mechanisms can be considered at various observation scales, depending on the material provenance and on its geometry and location. Involved materials are commonly constituted by porous rocks - more or less altered - belonging to geological sedimentary formations, as limestone, calcarenite and travertine. Their appreciable porosity affects significantly liq…

De barrio-problema a barrio de moda: gentrificación comercial en Russa-fa, El “Soho” valenciano

2015

Russafa neighborhood in Valencia (Spain) has become the center of one of the most ambitious urban redevelopment plans implemented by the local council in recent years. This old neighborhood of merchants and artisans, that during the 80's and 90’s experienced a long period of degradation and neglect, is today the multicultural trendy district for tourists and citizens The aim of this paper is to show the gentrification process emerged in this neighborhood, and how from the abandonment that characterized it just a decade ago, it has undergone a fast process of festivalization and economic transformation with the arrival of the “creative classes”, that so far has caused few reactions, despite …

ThT influences Abeta(1-40) aggregation process

2013

And the World Continues to Spin…: Secularism and Demystification in Good Omens

2018

Pratchett’s narratives tend to portray not only multicultural but also multireligious societies. In contrast to earlier writers of fantasy, however, Pratchett writes from a decidedly atheistic point of view, an issue Daniel Scott explores in depth in this chapter. He argues that co-authors Pratchett and Gaiman use Good Omens to perform what, following Rosemary Jackson’s theory of fantasy literature (1989), is a dual subversion; in using biblical prophecy to hold a mirror up to society, they also show the faults and cracks in the mirror itself, sometimes overtly, but mostly by implication. By reducing it to this level of intertextuality, they strip it of its higher or absolute metaphysical v…

OH-related Infrared Absorption Bands in Oxide Glasses

2005

We report the infrared activity, in the spectral region of the OH stretching modes, of different composite silicate glasses whose chemical composition is established by X-ray fluorescence measurements. The analysis of the absorption line profiles is made in terms of different spectral contributions, Gaussian in shape. The comparison with analogous spectra obtained in vitreous silica samples with impurity concentrations < 100 part per million moles is evidence of the effects of the different oxides on the vibrational properties of the OH groups. In particular, for oxide glasses a red shift of the composite band at about 3670 cm(-1), assigned to the OH stretching modes of free Si-OH groups an…

A comparison among different techniques for human ERG signals processing and classification

2014

A comparison among different techniques for human ERG signals processing and classification ( Articles not published yet, but available online Article in press About articles in press (opens in a new window) ) Barraco, R.a, Persano Adorno, D.a , Brai, M.a, Tranchina, L.b a Dipartimento di Fisica e Chimica, Università di Palermo and CNISM, Viale delle Scienze, Ed. 18, I-90128 Palermo, Italy b Laboratorio di Fisica e Tecnologie Relative - UniNetLab, Università di Palermo, Viale delle Scienze, Ed. 18, I-90128 Palermo, Italy Abstract Feature detection in biomedical signals is crucial for deepening our knowledge about the involved physiological processes. To achieve this aim, many analytic appro…

Automatic Segmentation of HEp-2 Cells Based on Active Contours Model

2018

In the past years, a great deal of effort was put into research regarding Indirect Immunofluorescence techniques with the aim of development of CAD systems. In this work a method for segmenting HEp-2 cells in IIF images is presented. Such task is one of the most challenging of automated IIF analysis, because the segmentation algorithm has to cope with a large heterogeneity of shapes and textures. In order to address this problem, numerous techniques and their combinations were evaluated, in a process aimed at maximizing the figure of merit. The proposed method, for a greater definition of cellular contours, uses the active contours in the last phase of the process. The initial conditions, c…

Espiral. Cuadernos del profesorado

2012

La música tiene la capacidad de transmitir conocimientos, habilidades y valores intrínsecos a la cultura del compositor, y al mismo tiempo transmite emociones y sentimientos comunes a todas las culturas; por ello puede decirse que la música es un instrumento idóneo para el establecimiento de un diálogo intercultural. La acción comunicativa musical siempre ha sido objeto de análisis; aunque ha sido la falta de diálogo cultural la que ha aumentado la consideración de que la música puede posibilitar el camino hacia la adquisición de la Interculturalidad. Este artículo muestra cómo la música favorece el proceso comunicativo intercultural, al considerarse como la principal herramienta de trabajo…

Solubility and acid-base properties and activity coefficients of chitosan in different ionic media and at different ionic strengths, at T=25°C

2009

Studies on the acid-base properties and solubility of a polyammonium polyelectrolyte (chitosan) with different molecular weights (MW 310 and 50 kDa), were performed at T=25 °C, in the pH range 2.5–7. The protonation of chitosan was investigated by potentiometry ([H+]-glass electrode) in NaCl, NaNO3 and mixed NaNO3+Na2SO4 ionic media, at different ionic strengths. Protonation constants were calculated as a function of dissociation degree α by means of two different models, namely, a simple linear model and the modified Henderson–Hasselbalch equation. Experimental data were also fitted using a model independent of α (Diprotic-like model), according to which the acid-base properties can be sim…