Search results for " BENI CULTURALI"
showing 10 items of 230 documents
Chemical speciation of polycyclic aromatic hydrocarbons in sediments: partitioning and extraction of humic substances.
2010
The primary objective of this study was to examine the chemical speciation of polycyclic aromatic hydrocarbons (PAHs) found in sediments endowed with different characteristics. To achieve this purpose and because the nature of the sediments influences the distribution of PAHs, we have analyzed four different types of sediments. To study the role of organic matter in the sequestration of PAHs, we fractionated humic substances into humic acids and humin–mineral fractions. After their separation and purification, the humic components were examined for their sorptive reactivity by extracting them with organic solvents; these extracts were subsequently subjected to GC/MS analysis. Our results sh…
Polycyclic Aromatic Hydrocarbons in Sediments of Marine Coastal Lagoons in Messina, Italy: Extraction and GC/MS Analysis, Distribution and Sources
2004
The content of 21 polycyclic aromatic hydrocarbons (PAHs) has been determined in 16 samples of sediments collected from Ganzirri and Faro marine coastal lagoons in Messina (Italy). Analysis was performed by gas chromatography/mass spectrometry (GC/MS) in selected ion monitoring (SIM) mode. The total concentration of polycyclic aromatic hydrocarbons (PAHs) ranged from 74 to 5755 ...g/Kg of dry matrix. The resulting distributions and molecular ratios of specific compounds have been discussed in terms of sampling location and origin of organic matter. The results obtained show that levels of contamination are not homogeneous throughout the stations, while the relative distributions of PAH are…
Determination of selected polyaromatic hydrocarbons by gas chromatography–mass spectrometry for the analysis of wood to establish the cause of sinkin…
2014
Abstract The aim of this paper was to establish the cause of sinking of an old wooden vessel by polycyclic aromatic hydrocarbon (PAH) analyses because wood combustion is a source of PAHs. In particular, the molecular PAH patterns generated by each source are like fingerprints and it is possible to determine the processes that generate PAHs by studying their distribution in wood samples. The relative abundance of high molecular weight PAHs, together with the PAH compound ratios and with total index (proposed by us) has demonstrated that samples owe their PAHs in wood archaeological material to a predominant single mode of origin, i.e. combustion processes, therefore we can say that the sinki…
Platinum in indoor settled dust matter (homes and cars)
2015
Abstract This paper presents a method for Pt analysis in indoor (homes and cars) settled dust, used as passive samplers, and the results relative to samples collected in the Sicilian area are used to evaluate the magnitude and distribution of concentrations inside common environments and the possible origins of the considered contaminant. The concentrations of platinum in settled indoor dust were measured by differential pulsed voltammetry (DPV). Concentrations of Pt in homes are in the range from 30 to 1460 μg kg − 1 d.w. while, in the vehicles from 30 to 1750 μg kg − 1 d.w. Considering the geoaccumulation index (I geo ), 42% of the settled dust sampled in homes could be classified as extr…
Solubilità, proprietà acido - base e coefficienti di attività del chitosano in soluzione acquosa a 298.15°K
2008
La ricostruzione post-terremoto di Gibellina: ri-creazione dell’eredità culturale e attivazione di nuovi processi progettuali.
2013
La storia di Gibellina è la storia straordinaria di una città ricostruita nella valle del Belice in Sicilia, dopo un terribile terremoto che nel 1968 la distrusse completamente. Ma al processo di ricostruzione, attuato dalla burocrazia dello stato, si è sovrapposto il progetto utopico del sindaco Ludovico Corrao: far rinascere, dopo una città che potesse accogliere arte e cultura, abitata da una comunità aperta e consapevole. Si avvia una stagione straordinaria di elaborazioni e produzioni culturali che costellano la città e il paesaggio, mentre Gibellina diventa centro internazionale di artisti e intellettuali. Oggi, Gibellina è un luogo ricchissimo di opere d’arte e di architetture , ma è…
ELOGIO DELLA POLEMICA
2010
This article pays tribute to the renowned polemist, Vittorio Sgarbi, an art-critic who is exceptionally active in the cultural, social, political and parliamentary fields. Collected together are a few significant snippets from his printed works, from which there emerges his unflagging zeal and interest in figurative culture, from ancien times up to the present. Propelled by the driving-force of history and aimed at the conservation and safeguard of the cultural, artistic and landiscape heritage, the resulting vis polemica, backed up by his reasoning, is of great fascination to the general public.
Design per i beni e le produzioni culturali nello scenario della crisi
2013
Il design ha da tempo elaborato e consolidato teorie e pratiche intorno alle tematiche dei BB.CC.; questa disciplina soprattutto ha evidenziato ed esplorato la grande potenzialità dei Beni Culturali come risorsa particolarmente diffusa nel territorio nazionale e sempre più centrale nello sviluppo territoriale; inoltre il patrimonio culturale è da ritenere una risorsa sostenibile e rinnovabile, in quanto attuatrice di processi di consapevolezza e accrescimento della conoscenza, fruibili, ma non soggetti al mero consumo. Oggi, in tempo di crisi globale, accanto ai temi della valorizzazione e comunicazione, il design deve sviluppare una riflessione anche attorno alla produzione di nuovi valori…
'Le fabbricerie'
2008
La fabbriceria è un’istituzione d’origine antichissima è ha il suo presupposto nella reciproca collaborazione tra pubblico e privato nella manutenzione delle chiese di maggiore importanza, soprattutto le cattedrali. Lo studio, partendo dalla constatazione del duplice dato apparentemente contraddittorio, della persistente utilità simbolica ed effettiva dell’istituto in punto di fatto ma giuridicamente assoggettato a una legislazione residuale, offre alcune possibili risposte alle questioni più annose emerse in dottrina e in giurisprudenza e in particolare con riguardo al duplice dubbio: se esse siano o meno ecclesiastiche, individuandone l’effettiva ‘ecclesiasticità lata’; se siano o meno en…
Supramolecular Association of Halochromic Switches and Halloysite Nanotubes in Fluorescent Nanoprobes for Tumor Detection
2022
Fluorescence imaging has become an indispensable tool in the biomedical laboratory to elucidate the fundamental dynamic and structural factors regulating cellular processes. The development of fluorescent nanoprobes represents a challenge to detect any cellular process under a microscope. Herein, a fluorescent nanomaterial was synthesized by exploiting the supramolecular interaction between a halochromic switch (1Cl) and halloysite nanotubes (HNTs). The successful synthesis of a HNTs/1Cl nanomaterial was confirmed by thermogravimetric analysis and Fourier transform infrared. The aqueous mobility was investigated by dynamic light scattering and ζ-potential measurements as well. Furthermore, …