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21-cm line anomaly: A brief status
Get PDFIn this proceedings I briefly present the status of the global 21-cm signal detected by EDGES in March 2018. It is organized in three parts. First, I present the EDGES experiment and the fitting procedure used by the collaboration to extract the tiny 21-cm signal from large foregrounds of galactic synchrotron emission. Then, I review the physics behind the global 21-cm signature and I explain why the measured absorption feature is anomalous with respect to the predictions from standard astrophysics. I conclude with the implications for Beyond Standard Model (BSM) physics coming from the EDGES discovery
LEMMA approach for the production of low-emittance muon beams
Get PDFThis work introduces an experimental test of the new proposal for a low–emittance muon accelerator (LEMMA). A low–emittance muon beam is obtained from the e+e− → μ+μ− annihilation process at the threshold energy of 45 GeV eliminating the need for a dedicated muon cooling system. A series of two testbeam campaigns were carried out at CERN to validate this concept. The experimental setup is presented together with first preliminary results from the obtained data
L’ILIESI e gli studi sullo Stoicismo
Get PDFIl presente contributo presenta una rassegna completa degli studi sullo Stoicismo pubblicati dall’ILIESI e, prima ancora, dai due Centri di Studio, LIE e CSPA, dalla cui fusione l’ILIESI è nato. La produzione storiografica presa in considerazione copre quasi un cinquantennio (1970-2019). Questo lavoro vuole anche offrire una riflessione generale sulle metodologie storiografiche dell’Istituto
Partire, lavorare, parlare: uno sguardo all'emigrazione italiana dal 1945 agli anni Settanta
Get PDFThis chapter describes the history of italian emigration since the second world
war. Emigration after the war depended on many social and economic variables,
as well as the difficulties of integration in the countries to which they
emigrated. Those leaving often only hoped to scrape together small amounts
useful for planning their future and that of their own family. Those countries
who received the immigrants, did not want them to remain for too long: the
countries that welcomed manpower did so under strict conditions and by linking
the immigrant presence to contracts of employment. In the 60s and 70s
italian emigration was less precarious, but after the economic crisis (1973) a lot
of people was forced to return to Italy. The characteristics of the relationship
between multilingualism and emigration in this period are very much influenced
by social and political conditions
Esempi di progettazione antincendio : con il codice di prevenzione incendi aggiornato al D.M. 18/10/2019
No full textL’Opera intende mettere in grado il professionista di individuare, valutare e sviluppare le
migliori soluzioni di progetto e misure di sicurezza antincendio, attraverso i metodi
contemplati dal Codice di Prevenzione Incendi (aggiornato in base al D.M. 18/10/2019)
o tramite l’applicazione delle specifiche regole tecniche (RTV), per le attività che ne sono
dotate.
Il lettore troverà una serie di esempi pratici mirati e appositamente elaborati -
riguardanti casi realistici frequenti nella pratica quotidiana - che coprono pressoché tutte
le attività soggette ai controlli dei Vigili del Fuoco, nonché tutte le specifiche
progettuali e le casistiche procedimentali, consentendo di trovare la risposta più idonea
a qualunque situazione di progettazione antincendio. Tutti gli esempi sono corredati
di tavole progettuali originali.
Vengono evidenziati e tradotti in pratica tutti gli aspetti innovativi presenti nella nuova
versione aggiornata del Codice di Prevenzione Incendi, con i molteplici riflessi
progettuali e le criticità, consentendo al lettore di sfruttare al meglio le potenzialità offerte
dalla progettazione prestazionale.
In questa terza edizione, tutti gli esempi sono integralmente aggiornati alla luce delle
profonde modifiche introdotte al Codice di Prevenzione Incendi ad opera del D.M.
18/10/2019, nonché dell’abolizione del c.d. “doppio binario” avvenuta con decorrenza dal
20/10/2019.
La consultazione risulta agevole e snella grazie alla presenza di un indice ragionato, di
una guida alla lettura con la sintesi di ciascun esempio sviluppato e di un quadro
sinottico degli esempi stessi, per il reperimento rapido dei vari argomenti, delle attività
trattate, delle specifiche progettuali e delle singole misure antincendio.
Quest’Opera sarà dunque un indispensabile ausilio professionale operativo per
progettisti, consulenti e funzionari tecnici dei Vigili del Fuoco, nonché a supporto di corsi
di formazione per professionisti antincendio
Deposition of thin films containing carboxylic acid groups on polyurethane foams by atmospheric pressure non-equilibrium plasma jet
Get PDFThin films containing carboxylic acid groups are deposited on open-cell polyurethane (PU) foams by using an atmospheric pressure non-equilibrium plasma jet, in dielectric barrier
discharge configuration, fed with helium, acrylic acid and ethylene. The arrangement of the plasma jet, the sample holder, and the substrate is carefully optimized to enable the penetration of the plasma ejected from the remote source throughout the threedimensional (3D) porous structure of the foam, and, therefore, to achieve the uniform coverage of the entire substrate. X-ray photoelectron spectroscopy analyses and scanning electron microscopy observations confirm that both the outer and the inner surfaces of the foam can be functionalized with the plasma-deposited coating, showing moderate changes in surface chemical composition and
coating thickness moving from the exterior to the interior of the plasma-treated samples. The ability of the foams to adsorb heavy metals from water is tested through evaluation of cadmium ions (Cd2+) removal. The foams adsorption capacity can increase more than 10 times after plasma deposition and remains unchanged over 8 adsorption-release cycles
La Strategia Nazionale per le Aree Interne (SNAI) e la valorizzazione del patrimonio turistico per lo sviluppo locale
Get PDFModellazione di superfici di età romana nel centro urbano di Treviso per lo studio del paesaggio antico e la tutela archeologica
Get PDFTreviso, as many other historical towns in Italy, is a large and multi-stratified site occupied since the Bronze Age to the present time. This study was oriented to model trend surfaces, representative of the ground level of the city in Roman Age, on the basis of stratigraphic data. GIS spatial analyses were performed to select a reliable dataset. DTM was obtained by the interpolation of elevation points related to significant features, with the aim to contribute to the study of the ancient landscape and to support the evaluation of risks connected with public works that may impact local archaeological heritage
Archaeology and computers: a long story in the making of modern archaeology
Get PDFThe growing success, for more than fifty years, of the scientific contribution of computer applications and quantitative methods in archaeology may be now reviewed and analyzed from different technological and sociological points of view. This examination allows us to appreciate the material importance of such contributions and how the community of specialists in computational archaeology should play a major role in the future of 21st-century archaeology
Rappresentare l’armatura culturale del territorio con QGIS: l’esperienza del PTRA della Franciacorta
Get PDFLandscape features are the result of interrelated actions of man-and-nature and can provide ecosystem services that need to be protected. Since urban planning policies can impact negatively on the conservation of cultural ecosystem services, urban plans must map them and make provision for their protection. For the Plan of Franciacorta (22 municipalities in Lombardy), we chose QGIS to set up a geo-database and map cultural heritage information. QGIS can provide more flexibility than a typical map, thanks to its graphics tools. To plan the development of actions to protect the landscape and suggest a range of planning opportunities for municipalities, an integrated representation of the landscape and protected ecological elements can highlight some critical issues: municipal borders can prove an obstacle in the implementation of supra-municipal projects and protected areas can include enclaves potentially vulnerable to urban pressures. Such maps have proved useful in guiding the planning choices in the development of the landscape protection schemes. The geo-location of critical aspects has brought out a range of inter-municipal planning opportunities