471 research outputs found
Il valore dell'ascolto misurato: la «currency» Auditel e il mercato pubblicitario tra anni Ottanta e Novanta
No full textIl saggio pone in relazione, per la prima volta, i dati storici relativi agli investimenti pubblicitari nel settore televisivo italiano con i dati d'ascolto elaborati da Auditel. Focalizzandosi su un momento di svolta dell'industria televisiva italiana, dall'avvio del mercato competitivo alla fine degli anni Novanta, il testo intende dimostrare l'impatto positivo esercitato da una nuova currency condivisa come lo standard Auditel nel sostenere e razionalizzare la crescita degli investimenti pubblicitari sul medium televisivo
In the shadow of the church: the building of mosques in early medieval Syria
No full textIn his book In the Shadow of the Church: The Building of Mosques in Early Medieval Syria Mattia Guidetti examines the establishment of Muslim religious architecture within the Christian context in which it first appeared in the Syrian region, contributing to the debate on the transformation of late antique society to a Muslim one. He scrutinizes the slow process of conversion to Islam of the most important town centers by looking at religious places of both communities between the seventh and the eleventh century. The author assesses the relevancy of churches by analyzing the location of mosques and by researching phenomena of transfer of marble material from churches to mosques
Effects of inaccurate electrode positioning in subsurface resistivity measurements for archeological purposes
No full textElectrical Resistivity Tomography is a geophysical measurement technique used to measure the resistivity of the subsoil. For archeological applications the ability to accurately reconstruct the soil stratigraphy is a fundamental requirement. Obtain a reliable subsoil reconstruction is an important topic in order to improve the design of the archeological excavation and, at the same time, to minimize the excavation cost, managing effectively and efficiently the archeological survey. During a measurement campaign on the Etruscan tumulus located in Poggio Pepe (Italy), the electrode GPS coordinates were acquired with a high error. For this reason, the aim of this work is to investigate the effects of the inaccurate electrode positioning in the subsoil reconstruction. A Monte Carlo simulation-based approach was proposed to simulate a domain of possible electrodes positions.
The statistical parameters of the simulated dataset have been studied and compared with the measurement acquisitions in order to highlight the effects of such errors. Finally, the paper presents a comparison between the images of the subsoil reconstruction in case of measured resistivity and simulated dataset
Cyclochronology of the Early Eocene carbon isotope record from a composite Contessa Road-Bottaccione section (Gubbio, central Italy)
No full textHigh-resolution geochemical time series from the composite Contessa Road-Bottaccione (CRBTT) section (central Italy) allows testing the global significance of Early Eocene short- and long-term carbon isotope trends by comparison with available records from oceanic successions. Spectral analysis reveals Milankovitch frequency band fluctuations in the concentration of CaCO3. Extraction of the short- and longeccentricity orbital periodicities from the wt.% CaCO3 record provides a relative cyclochronology for the interval spanning ~ 49.5 Ma to ~ 52.5 Ma corresponding to magnetochron C22r to the top of C24n thus extending the cyclochronology already available from the same section in the interval between ~ 52.0 to ~ 56 Ma, spanning the lower C24r to upper C23r. Recognition of orbitally forced sedimentary cycles, corresponding to the long (405 kyr) and short (100 kyr) eccentricity, allows to test the chemostratigraphic alignment with ODP Site 1258 and ODP Site 1263 records and to obtain a correlation of hyperthermal events to an unambiguous magnetostratigraphic record across the interval corresponding to the Early Eocene Climatic Optimum and to refine the astrochronological interpretation of the Ypresian Stage
The impact of geo-hydrological hazards on cultural heritages represents a multi-disciplinary theme, which requires several different approaches.
No full textRESVERATROL-INDUCED AUTOPHAGY CONTRIBUTES TO THE INHIBITION OF EPSTEIN BARR VIRUS REPLICATION IN BURKITT’S LYMPHOMA CELLS
No full textRESVERATROL-INDUCED AUTOPHAGY CONTRIBUTES TO THE INHIBITION OF EPSTEIN BARR VIRUS REPLICATION IN BURKITT’S LYMPHOMA CELLS
De Leo Alessandra (a), Colavita Francesca (a), Arena Giuseppe (b), Mattia Elena (a)
(a) Dip. di Scienze di Sanità Pubblica e Malattie Infettive “Sanarelli”, Univ. di Roma “Sapienza”
(b) Casa Sollievo della Sofferenza Hospital, CSS-Mendel Institute, Roma
Presenting author: De Leo Alessandra, [email protected]
We have previously examined the antiviral activity of resveratrol on the replication of Epstein Barr Virus (EBV), the etiologic agent of infectious mononucleosis and associated with several types of malignancies of epithelial and lymphoid origin.
In a cellular context that allows in vitro EBV activation and lytic cycle progression through mechanisms closely resembling those that in vivo initiate and enable productive infection, we found that RV inhibited EBV lytic genes expression and the production of viral particles in a dose-dependent manner
Does Independence Affect Regulatory Performance? The case of national competition authorities in the European Union
No full textDespite having always been assumed to be true, a relationship between the independence of regulatory agencies and their performance has never been formally tested. This paper aims at verifying whether formal regulatory independence affects the performance of national competition authorities in the EU member states. The author presents and discusses a statistical analysis which shows that greater formal independence leads competition authorities to investigate more cases and to issue more decisions
Caterina Colombini (1304 ca.-1387) o della cugina sedotta. Una ‘ricostruzione’ della figura di Caterina attraverso i testi letterari, in Le vestigia dei gesuati. L’eredità culturale del Colombini e dei suoi seguaci, a cura di I. Gagliardi, Firenze, Firenze University Press, 2020, pp. 57-71 ISBN 978-88-5518-227-0
No full textIn this essay the author demonstrates that it is possible to reconstruct the figure of Caterina Colombini (1340?-1387) – Giovanni Colombini's cousin – through a group of texts: the hagiography of Caterina, the letters sent to her by Giovanni Colombini and, finally, Giovanni's biography written by Feo Belcari. The author divides his text into four parts: the first part analyzes the content of Caterina's hagiography; the second examines the linguistic form of the hagiographic text; in the third, the author analyzes the latent meaning of the window, a symbolic place where Giovanni and Caterina converse on divine topics; in the last part, to conclude, the teachings that Giovanni gives to Catherine and her spiritual daughters – the Gesuate – are analyzed
La differenza italiana e l'aporetica del "non"
No full textIn this paper, the author discuss a recent volume on Antonio
Rosmini’s thought, and in particular around the relationship
between Rosmini and Fichte and the notion of nothingness and
nothingness of love
Integrierte hydrologische und hydrogeologische Modellierung für die Subsidenzanalyse im Becken
No full textLand subsidence, together with landslides and floods, represents one of the main natural hazards that affect several countries all over the world, potentially causing significant damages to buildings and infrastructures. In particular, Firenze-Prato-Pistoia basin has a long experience of ground deformation related to groundwater withdrawal. InSAR satellite data collected since 1992 have revealed the presence of several subsiding areas in the basin, such as the south-eastern portion of Pistoia city. Sentinel-1 persistent scatterer interferometry measurements for 2015–2018 confirmed the long-term subsidence of this area, associated with intense horticulture (plant nurseries). At the same time, Sentinel-1 data revealed the unexpected movement of Pistoia historic center, which has always been considered stable in the past. To identify the complex relationship between aquifer conditions and ground displacement, a hydrogeologic model of the Pistoia aquifers was developed, applying an integrated modelling procedure. This approach was firstly tested in a small pilot basin, to confirm the reliability of the numerical procedure, obtaining promising results. Hydrodynamic-parameter distributions, calibrated and validated by means of Sentinel-1 PSI measurements, suggest that subsidence in Pistoia area is probably related with the combined impacts of groundwater extraction and highly compressible aquitards. To evaluate the potential evolution of ground displacement, numerical simulations were extended until 2050, using regional and global climate model data, analyzing three different pumping-rate scenarios. This, together with damage information of buildings collected on the field, led to the development of several subsidence hazard maps of Pistoia city that display the influence of groundwater extraction in controlling land subsidence in the area. The present study enhances the importance of developing proper groundwater management policies, especially in alluvial aquifers made of fine compressible sediments, in order to sustainably utilize underground freshwater resources and to avoid related side effects. It also emphasizes the role of integrated numerical simulations and the necessity to consider surficial network and groundwater as a unique interacting system, when developing basin scale hydrogeologic analysis.Landabsenkungen stellen eine der wichtigsten Naturgefahren dar, die mehrere Länder auf der Welt betreffen und möglicherweise Schäden an Gebäuden und Infrastruktur verursachen. Das Firenze-Prato-Pistoia-Becken verfügt über langjährige Erfahrung mit Bodenverformungen im Zusammenhang mit der Grundwasserentnahme. InSAR-Satellitendaten, die seit 1992 gesammelt wurden, haben gezeigt, dass im Becken mehrere Absenkungsgebiete vorhanden sind, beispielsweise der südöstliche Teil der Stadt Pistoia. Sentinel-1-Messungen für den Zeitraum 2015–2018 bestätigten die langfristige Absenkung dieses Gebiets, die mit einem intensiven Gartenbau verbunden ist. Gleichzeitig enthüllten Sentinel-1-Daten die unerwartete Bewegung des Zentrums von Pistoia, das in der Vergangenheit immer als stabil angesehen wurde. Um die Beziehung zwischen den Bedingungen des Grundwasserleiters und der Bodenverschiebung zu identifizieren, wurde ein hydrogeologisches Modell der Pistoia-Grundwasserleiter unter Anwendung eines integrierten Modellierungsverfahrens entwickelt. Dieser Ansatz wurde zunächst in einem Pilotbecken getestet, um die Zuverlässigkeit des Verfahrens zu bestätigen und vielversprechende Ergebnisse zu erzielen. Hydrodynamische Parameterverteilungen, die mithilfe von Sentinel-1-Messungen kalibriert und validiert wurden, legen nahe, dass das Absinken im Gebiet von Pistoia wahrscheinlich mit den kombinierten Auswirkungen der Grundwassergewinnung und hochkomprimierbarer Aquitards zusammenhängt. Um die mögliche Entwicklung der Bodenverschiebung zu bewerten, wurden Simulationen bis 2050 erweitert, wobei prädiktive Klimamodelldaten verwendet und drei verschiedene Pumpraten-Szenarien analysiert wurden. Dies führte zusammen mit Schadensinformationen von Gebäuden zur Entwicklung mehrerer Karten der Senkungsgefahr der Stadt Pistoia, die den Einfluss der Grundwassergewinnung auf die Kontrolle der Bodensenkung in der Region zeigen. Die vorliegende Studie unterstreicht die Bedeutung einer angemessenen Grundwassermanagementpolitik, insbesondere bei Schwemmlandgrundwasserleitern aus feinen komprimierbaren Sedimenten, um die unterirdischen Süßwasserressourcen nachhaltig zu nutzen und damit verbundene Nebenwirkungen zu vermeiden. Es unterstreicht auch die Rolle integrierter numerischer Simulationen und die Notwendigkeit, das Oberflächennetz und das Grundwasser als ein einzigartiges Wechselwirkungssystem zu betrachten, wenn hydrogologische Analysen im Beckenmaßstab entwickelt werden
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