37 research outputs found
Atti del XVII Colloquio dell'Associazione Italiana per lo Studio e la Conservazione del Mosaico, con il patrocinio del Ministero per i Beni e le Attività Culturali (Teramo, 10-12 Marzo 2011)
No full textBIBLIOTHECAE.it
No full textLa rivista ( peer-reviewed e open access), diretta da Fiammetta Sabba, pubblica contributi, discussioni e recensioni in italiano e nelle principali lingue europee, su temi e questioni connessi al mondo della biblioteche e alle discipline del libro e del documento articolati nelle seguenti sezioni : Testi e documenti del mondo antico; Storia del libro manoscritto; Biblioteconomia e bibliografia; Storia del libro e storia delle biblioteche; Teoria dell’informazione e della documentazione; Informatica umanistica. Oltre al comitato di direzione (composto dai condirettori Alfredo Serrai e Anna Giulia Cavagna), la rivista si avvale di un comitato editoriale e di un comitato scientifico internazionale
On the ICL test in soil stabilization
No full textSome considerations upon the Initial Consumption of Lime (ICL) test, arisen from its use in the lime treatment of a pyroclastic soil, are presented. In the investigated material there are no ion-exchanging minerals, such as zeolites. Therefore when this soil comes into contact with lime, no ion exchange processes are expected, and lime consumption is due to pozzolanic reactions. The standard ICL test was performed on this material treated with different lime percentages, and pH value was checked for the following 14 days. Atomic absorption analyses of unconsumed lime have been performed on under-saturated lime solutions of the same soil. Data showed significant consumption of lime, due to pozzolanic reactions, as soon as lime comes into contact with the soil, influencing both Ca2+ concentration in solution and pH. Experimental data and theoretical considerations suggest that pH value could be not diagnostic in determining the amount of lime required to satisfy the soil affinity for lime if ion exchanging minerals were present. In fact when pozzolanic reactions develop in the very short term, pH measurement does not allow discerning the amount of lime consumed by pozzolanic reactions and by cation exchange
Il concerto delle Muse nella Città Ideale : indagini sul programma iconografico del Tempietto del Palazzo Ducale di Urbino con un'ipotesi di ricostruzione virtuale
No full textThe pictorial cycle originally housed in the so-called Tempietto delle Muse in Federico da Montefeltro’s Ducal Palace in Urbino (the oldest attestation of the iconographic representation of the Muses as musicians within a courtly context), visualizes the celebratory theme of music as a mirror of the harmony realized by the Duke during his reign, representing, at the same time, the praise of the ducal "musicality" and that of his favorite musical instruments and repertories.
There is no doubt that this sophisticated iconographic project was elaborated within an humanistic neoplatonic celebratory program, but its reconstruction is complicated by the lack of documents concerning its sources and the original number and disposition of the paintings, partly lost.
On the basis of an in-depth analysis of the pictorial cycle’s 'iconographic genealogy’, the Author proposes an original global interpretation of the decorative programme and a new hypothesis to identify the iconographic sources of the lost paintings and their possible disposition.
To support these hypotheses, the essay includes also a virtual reconstruction of the pictorial cycle, "relocating” inside the Tempietto both the surviving and the missing paintings
The Adamello-Presanella Group (Rhaetian Alps): a key site for understanding recent glaciers variations
No full textThe Alps are a sensitive environment towards the ongoing climate changes, to which they are
reacting with variations in the extension of glaciers and permafrost and with an increasing in the
frequency and magnitude of mass-wasting processes. The Alps have been referred in the Mountain
Agenda as the “water tank of Europe” representing the source area of many important rivers. To
focus the glaciers behaviour as response to recent global changes we investigated more than one
hundred glaciers of the Adamello-Presanella Group. Present day glaciers of the this group,
including the widest glacier of Italian Alps the Ghiacciaio dell’Adamello, extend for more than 50
km2. We reconstruct LIA glacial limits through geomorphologic and glacial geologic field surveys;
areal variations occurred in the 20th and 21th Centuries have been inferred from historical maps and
multitemporal aerial photographs. Since the Little Ice Age (LIA), whose climax was reached in the
Alps around 1850 AD, alpine glaciers experienced a period of manifest reduction, with a strong
reduction in thickness and areal extension, broken by very few brief and weak advances. More than
140 glaciers developed during the LIA covered an area almost the double of their present surface..
The elevation of the Equilibrium Line Altitude (ELA), areal and volume variations underline a
strong reduction since the LIA. The notable frontal regression is marked by withdrawals ranging
from several hundred meters to more than 2000 m.
Considering the maximum LIA and 1983 AD glaciers extension of the Presanella Group, they lost
about 55% of the total area while the mean value for the entire Adamello– Presanella Group is
about 50%. An additional reduction of about 25% occurred between 1983 and 1999 AD. More recently, several glaciers of the group remained below the annual snowline and show dramatic areal and volumetric reductions
EtruSchifano. Mario Schifano a Villa Giulia: un ritorno/Mario Schifano: visioni etrusche
No full textMostra, curata da Gianluca Tagliamonte e Maria Paola Guidobaldi, sul tema del rapporto che l'artista Mario Schifano ebbe con l'arte etrusco-italic
A report on gender diversity and equality in the geosciences: an analysis of the Swiss Geoscience Meetings from 2003 to 2019
No full textISSN:1661-8734ISSN:1661-8726ISSN:1661-872
Last glacial maximum glaciers in the Northern Apennines reflect primarily the influence of southerly storm-tracks in the western Mediterranean
No full textDuring the Local Last Glacial Maximum (LLGM), the Northern Apennines hosted more than 100 valley and mountain glaciers covering collectively more than 260 km2. Cosmogenic 10Be exposure ages obtained for the first time along the Apenninic range constrain the age of the LLGM to pre-date ca 21 ka.
The estimated volumes of these Late Pleistocene glaciers exceeded 9.1 km3 w.e. Their reconstructed Equilibrium Line Altitudes (ELAs) range from ca. 1200 m a.s.l. for northerly facing compound basin valley glaciers to ca. 1620m a.s.l. for southerly facing mountain glaciers. Reconstructed ELAs in the western sector of the Northern Apennines were among the lowest recorded for the whole of the Italian peninsula,
including the Alps, and also when compared with other mountain chains in the surrounding Mediterranean basin. These probably reflect exceptionally high accumulation rates fed by storm tracks in the western Mediterranean, which in turn has implications for the atmospheric circulation pattern that prevailed in the region at the time
