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Copper-containing mesoporous bioactive glass nanoparticles as multifunctional agent for bone regeneration
No full textAn empirical classification-based framework for the safety criticality assessment of energy production systems, in presence of inconsistent data
No full textRETI ECOLOGICHE NELLA PIANIFICAZIONE LOCALE: ESPERIENZE NELLA REGIONE PIEMONTE
No full textNuove urbanizzazioni, reti infrastrutturali e colture intensive hanno incrementato il processo di frammentazione degli ambienti naturali, con la conseguente diminuzione della loro superficie e la perdita della capacità degli habitat di sostenere la vita delle specie e i loro spostamenti. Le aree esterne all'urbano (gli incolti, i coltivi in abbandono, le aree incendiate, i boschi degradati) sono spesso state relegate ad una posizione "inessenziale" e talvolta considerate come "stati di preurbanizzazione". Il contributo intende riflettere sul significato ecologico, e quindi sul ruolo ecosistemico non necessariamente secondario, di queste aree presentando alcune sperimentazioni svolte in Piemonte per il disegno della rete ecologica alla scala locale e la definizione di strategie e norme per integrare la dimensione ecologica nella strumentazione urbanistica
Il valore di memoria negli edifici di culto dismessi: considerazioni su conservazione e valorizzazione
No full textIl baco del tempo ... ovvero ... dalla parte dell'utente
No full textViene analizzato il problema della scelta di un prodotto industriale in funzione della sua durata e la sua affidabilità
Linoleum
No full textIl capitolo tratta del "Linoleum", ampiamente utilizzato nell'architettura moderna come materiale di finitura e di rivestimento. A partire dalle caratteristiche del prodotto e del processo produttivo, vengono presentate le principali varianti del materiale e le applicazioni in campo edilizio, riportando a titolo esempio opere e autori del Movimento Moderno. Vengono illustrate anche le principali tecniche di restauro
Terahertz vibrations in proteins: experimental and numerical investigation
No full textThe principal goal of this Doctorate thesis is to study high frequency vibrations (in the range between Gigahertz and Terahertz) in nanoscopic biological structures such as proteins. In particular, the idea of this thesis is to found, by means of experimental sessions and numerical simulations, natural frequencies of entire proteins or of large portions of that. The mechanical behaviour of proteins is receiving an increasing attention from the scientific community. Recently it has been suggested that mechanical vibrations play a crucial role in controlling structural configuration changes (folding) which govern proteins biological function. The mechanism behind protein folding is still not completely understood, and many efforts are being made to investigate this phenomenon. Complex Molecular Dynamics simulations and sophisticated experimental measurements are conducted to investigate protein dynamics and to perform protein structure predictions; however, these are two related, although quite distinct, approaches. Here we investigate the linearly free dynamics (frequencies and modes) of proteins by Modal Analysis. The input mechanical parameters are taken from the literature. We first give an estimate of the order of magnitude of the natural frequencies of protein crystals by considering both classical wave mechanics and structural dynamics formulas. Afterwards, we perform modal analyses of some relevant chemical groups and of the full lysozyme and Na-K ATPase proteins. The numerical results are compared to experimental data, obtained from both in-house and literature Raman measurements. Our present investigations are devoted to understand if stimulating protein samples with a laser that excites resonant mechanical vibrations (say, in the THz range) may induce variations in the vibrational spectra due to possible conformational changes of protein structure
Classification and analysis of communication protection policy anomalies
No full textThis paper presents a classification of the anomalies that can appear when designing or implementing communication protection policies. Together with the already known intra- and inter-policy anomaly types, we introduce a novel category, the inter-technology anomalies, related to security controls implementing different technologies, both within the same network node and among different network nodes. Through an empirical assessment, we prove the practical significance of detecting this new anomaly class. Furthermore, this paper introduces a formal model, based on first-order logic rules that analyses the network topology and the security controls at each node to identify the detected anomalies and suggest the strategies to resolve them. This formal model has manageable computational complexity and its implementation has shown excellent performance and good scalability