87,673 research outputs found
Progetti partecipati di valorizzazione del territorio: prime sperimentazioni della "Guida all'osservazione del patrimonio rurale- CEMAT"
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Patrimonio rurale e sviluppo locale
No full textL''attenzione verte, in questo saggio, sulla relazione tra patrimonio rurale e sviluppo locale. Sulla nozione di patrimonio rurale viene compiuto un approfondimento che tende a evidenziarne il carattere di costrutto sociale ed insieme la natura "dinamica", una sorta di "lievito" per lo sviluppo locale. Anche sulla scorta della "Guida europea all''osservazione del patrimonio rurale - CEMAT" viene esaminato il ruolo del patrimonio rurale secondo la prospettiva urbanistica, la prospettiva della Politica Agricola Comune (in particolare degli assi 2 e 3 della PAC) e la prospettiva culturale di difesa e valorizzazione della diversità del territorio europeo
Preliminary observation on the interactions between fine atmospheric particulate matter (PM2.5) and human alveolar epithelial cells (A549)
No full textFine atmospheric particulate matter (PM2.5) was collected in Milan during winter at Torre Sarca site, representative of background urban atmospheric pollution concentrations. Human alveolar epithelial A549 cells were subsequently exposed to
different particle doses for increasing time. PM2.5 morphology, as well as cell-particle interaction, were characterized by light microscopy, transmission electron microscopy and Raman spectroscopy. Based on previous theoretical studies of molecular dynamics and vibrational spectroscopy (Zerbi et al. 2006, Zerbi 2007) we developed a method to extract from the Raman spectra information on the molecular properties of different carbonaceous materials. It has been shown that PM2.5 is progressively internalized in cells (Gualtieri et al., 2007). Of particular interest is the preliminary observation that the Raman spectra of a carbon particulate (PM2.5) isolated from its surrounding or encapsulated in a cellular matrix, like that of alveolar epithelial cells, showed differences. It indicates that some kind of interaction at the molecular level has occurred. Further work is in progress
Dalla realtà al modello e ritorno
No full textMore and more accurate methodologies and automatic tools are now available in the field of geometric survey and image processing, constituting a fundamental instrument for cultural heritage knowledge and preservation; on the other side, very smart and precise numerical models are continuously improved, in order to simulate masonry structure mechanical behaviour. Despite the high accuracy and automation level reached by both technologies, the transfer of data between them is not easy and defining the most reliable way to exchange information without data loosing is still an open issue. The analysis of this complex translation process from the very precise information obtainable by the modern survey methodologies for historic buildings, into their very simplified (may be too much) structural schemes is the final aim of this paper
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