Search results for "CA [SR]"
showing 10 items of 2784 documents
IANUS: Comparative analysis
2002
Jointly with the application of IANUS model in the selected facilities, in WP4 Ambiente Italia has to produce an evaluation and comparison between different facilities and core indicators. The aim of this paper is to show collected data, computed indicators and comparison facilities throuh suggested indicator evaluation system.
InN thin film lattice dynamics by grazing incidence inelastic x-ray scattering.
2011
Achieving comprehensive information on thin film lattice dynamics so far has eluded well established spectroscopic techniques. We demonstrate here the novel application of grazing incidence inelastic x-ray scattering combined with ab initio calculations to determine the complete elastic stiffness tensor, the acoustic and low-energy optic phonon dispersion relations of thin wurtzite indium nitride films. Indium nitride is an especially relevant example, due to the technological interest for optoelectronic and solar cell applications in combination with other group III nitrides.
A two-component model for the 2260cm−1 infrared absorption band in electron irradiated amorphous SiO2
2011
Abstract We report an experimental study by infrared absorption (IR) measurements focused on the effects of electron irradiation in the dose range from 1.2 × 10 3 kGy to 5 × 10 6 kGy on the intrinsic band peaked at 2260 cm − 1 in amorphous silicon dioxide (a-SiO 2 ) materials. This IR band is particularly relevant as it is assigned to an overtone of the strong asymmetric stretching vibration of Si–O–Si bridges and consequently it is intimately related to the Si–O–Si bond angle distribution. In a recent work we have shown that structural modifications induced by irradiation take place through the nucleation of confined high-defective and densified regions statistically dispersed into the w…
REUTILIZACIÓN DE RESIDUOS DE PODA DE VID Y DE POSIDONIA OCEANICA EN LAS OBRAS DE BIOINGENIERÍA DEL PAISAJE
La popolazione mondiale è in continua espansione e la crescita demografica ed economica inducono allo sfruttamento progressivo dell’ambiente ed al depauperamento delle risorse naturali (acqua ed energia in particolare), con conseguenti impatti potenzialmente importanti sul cambiamento globale. Si rende, pertanto, necessaria ed urgente una più efficiente gestione delle risorse basata sulla rielaborazione di obiettivi sostenibili di politiche e strategie ambientali e sulla riduzione del consumo delle risorse, promuovendo la transizione da un modello di economia lineare ad uno circolare, costituito da un ciclo continuo di sviluppo positivo che preserva e migliora il capitale naturale, ottimizz…
Música, poder e inquisición en la España de antiguo régimen
1999
La iglesia, una de las instituciones monopolizadoras de poder, intentó a lo largo de todo el Antiguo Régimen canalizar y controlar la música que se interpretaba en sus espacios sagrados, preocupándose en todo momento por el mantenimiento de los códigos musicales establecidos, mostrando real desconfianza con respecto a lo novedoso, intentando arrojar de su mundo cualquier vínculo con la sensualidad y rechazando enérgicamente cualquier carácter y resabio popular de la música. Censurar y vigilar son dos grandes armas de poder que la iglesia no dudó en utilizar. A lo largo del trabajo afloran estas relaciones de potestad, los lazos que unieron la música con el poder eclesiástico y las formas de…
Diffusion and outgassing of O2 in amorphous SiO2 silica nanoparticles with specific surface properties
2014
Silica nanoparticles with hydrophilic and hydrophobic surface and average diameter of 12 and 40 nm are investigated to study the surface group influence on the diffusion process of molecular oxygen. The O2 diffusion kinetics and molecular solubility are determined by Raman/Photoluminescence measurements. Thermal treatments up to 127°C in controlled atmosphere show that the surface chemistry of nanoparticles is not changed, the equilibrium emission of O2 depends on nanoparticles surface properties, whereas the dynamics of diffusion is surface independent suggesting that surface groups could only affect overall content or detectability of interstitial molecules. The post loading outgassing in…
Hybridization in Capparis spinosa L.: Molecular and morphological evidence from a Mediterranean island complex
2014
Inter-Simple Sequence Repeat (ISSR) molecular markers and morphological analysis were used in order to characterize wild populations and cultivated forms of orphan crop species Capparis spinosa L. in a Mediterranean island complex. Nineteen wild populations belonging to two different subspecies, C. spinosa subsp. spinosa and subsp. rupestris, were sampled in different environments in Sicily and the surrounding islets Lampedusa, Pantelleria and Salina. Different biotypes cultivated in Pantelleria and Salina were analyzed. Six ISSR primers were selected for genetic characterization, and all clear and reproducible bands were scored and analyzed. Among the 47 ISSR bands obtained, 97.5% were pol…
22nd Meeting of the Group of European Charophytologists (GEC)
2019
The 22nd Meeting of the Group of European Charophytologists (GEC) was held from 17 to 21 September 2018 in Palermo. It was convened by the International Research Group on Charophytes (IRGC) and org...
La nuova Intesa con la Regione Ecclesiastica Sicilia sui beni culturali ecclesiastici alla luce del sistema concordatario italiano: l’atipicità diven…
2012
The main topic analysed in the essay is the outline of civil ecclesiastical law about the Agreement (Intesa), signed in 2010 by the Regione Siciliana and the Regione Ecclesiastica Sicilia, aimed at the protection, preservation and development of the ecclesiastical cultural heritage. By moving from the specialty of the Sicilian model in regulating and administrating such heritage, and by analyzing its effects on the specific system that regulates the same ecclesiastical component, the primary goal is to focus on the atypical elements carried onto the Agreement, which appear to be connected to the practice of such special prerogatives by the Regional Government; and paying particular attentio…
Unpublished Mediterranean records of marine alien and cryptogenic species
2020
Este artículo contiene 18 páginas, 4 figuras.