1,721,054 research outputs found
Sistemi di chiusura degli spazi finestrati nell’Altomedioevo: transenne di finestra in pietra e in stucco di gesso e lapis specularis
No full textRIASSUNTO - Il problema della chiusura degli spazi finestrati nell’Altomedioevo: transenne di finestra in
pietra e in stucco di gesso e lapis specularis.
Verificando inizialmente quali fossero i modi generalmente usati in eta antica negli edifici pubblici e privati,
in questo contributo si sono analizzate le modalita di chiusura delle finestre in particolare degli edifici
di culto di periodo tardoantico e alto-pieno medioevale in area italiana. In particolare si e concentrata
l’attenzione sulle transenne realizzate in pietra e in stucco e lapis specularis a chiudere i trafori. Il problema
della chiusura delle finestre nelle chiese di eta tardoantica e altomedievale, inizialmente per lo piu di notevole
grandezza e poi di misure molto piu contenute, e un argomento non ancora particolarmente approfondito
negli studi storici, architettonici ed archeologici, in quanto rimangono limitati dati documentari e scarsi
manufatti. Si e approfondito in particolare il caso delle transenne di finestra in stucco di gesso e lastrine di
lapis specularis rinvenute da Antonio Munoz nel 1914-19, durante i lavori di restauro all’edificio religioso
di Santa Sabina sull’Aventino a Roma. Grazie all’intervento conservativo effettuato all’interno dell’Istituto
Superiore per la Conservazione ed il Restauro, si sono potuti approfondire nuovi e interessanti aspetti
tecnici legati alla produzione e alla messa in opera di queste transenne di finestra.
E’ stato inoltre realizzato un primo censimento delle transenne di finestra in pietra e in stucco ancora
esistenti a Roma, nel Lazio e nelle altre regioni italiane, la maggior parte purtroppo non piu in opera e dalle
datazioni ancora da ben verificare, anche alla luce dei piu recenti studi.SUMMARY - Methods for closing windows in the Early Middle Ages: stone and gypsum stucco and lapis specularis
transennas.
After verifying what were the ways generally used in ancient times in public and private buildings, we
analyze the methods for closing the windows, in particular in the churches of the Late Antiquity/ Middle
Ages in the Italian area. In particular, we focus on the transennas made of stone and gypsum stucco and
lapis specularis to close the framework openings. The windows in the churches of late Antiquity and Early
Middle Ages were initially mostly of large size and then much smaller, but artifacts are rare and documentary
data remain limited in historical, architectural and archaeological studies.
A particular case are the gypsum stucco window frameworks closed by and lapis specularis thin slabs
found by Antonio Munoz in 1914-19, during the restoration works of the religious building of Santa
Sabina on the Aventine in Rome. Thanks to the conservative intervention carried out by Istituto Superiore
per la Conservazione ed il Restauro, new and interesting technical aspects related to the production and
installation of these window barriers were investigated.
We also present a first catalogue of stone and stucco window barriers still existing in Rome, Lazio and
other Italian regions, most of which unfortunately are no longer in place and their dating have not yet been
verified, even in light of the most recent studies
La presenza umana nei gessi emiliano-romagnoli. Dal Medioevo a oggi
No full textThe article analyses, in a diachronic perspective, the evolution of the interactions between human communities and Gypsum areas in the Emilia-Romagna Region (Northern Italy) from the Middle Ages to the present. In the Middle Ages, the harsh Gypsum morphologies, suitable for defence, were preferentially home to castles or fortified settlements, while natural cavities were exploited as places of shelter, hermitage or sites for clandestine activities, such as the production of counterfeit coins. With the Modern age, the work of forgers continued to be attested in the caves, while the collection of rainwater in cisterns became systematic and carried on through large structures. In the Contemporary age lies the great transition of the evaporitic areas of Emilia-Romagna from anthropisation, to their centrality during the Second World War (with caves used as shelter for the population and artificial cavities excavated in Gypsum bedrock for military purposes), to depopulation, in some cases total, triggered by the Italian ‘economic miracle’. Depopulation brought to a renaturation of these areas, basis for the institution of present-day parks and reserves
La storia degli studi nei gessi emiliano-romagnoli (XV-XIX secolo). Un primato mondiale
No full textThe article analyses, in a diachronic perspective, the history of the studies of Gypsum karst areas in Emilia-Romagna Region (Northern Italy), from its beginnings in the late 15th century to the 19th century. What emerges is a complex and interdisciplinary framework, in which some of the most important figures in the history of science (Georgius Agricola, Ulisse Aldrovandi, Luigi Ferdinando Marsili, Antonio Vallisneri, Lazzaro Spallanzani) stand out against the backdrop of the direct or indirect role played in this context by the University of Bologna, which was one of Europe’s leading academic institutions until the 19th century. The first investigations date back to the late 15th century, so Gypsum zones of the Emilia-Romagna were the first evaporitic outcrops studied in the world; analyses and publications have followed one another without interruption until today
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
The Roman Marble artefacts from the Lapidario Romano (Museo Civico Archeologico Etnologico di Modena): Archeometrical evidence for italian sources
No full textDispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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