1,720,966 research outputs found
Construction with wood and amphorae along the shoreline of Altino (North Lagoon of Venice). A proposed chronological reinterpretation of amphoric deposits from embankment structures
No full textThe study proposes a new methodology of chronological reinterpretation related to some embankment infrastructures found during decades of underwater investigations along the seabed of today's North Lagoon of Venice, an area corresponding to the ancient shoreline of the Roman city of Altino. These works, which the scientific community tends to interpret as multipurpose structures, mostly related to navigation, were formed by a double wooden cage to contain discharges of fictile material (amphorae, but also other ceramic artifacts and building waste). Their considerable diffusion throughout the area suggests their prominent role in defining land arrangements, but the local scientific literature have not yet arrived at an univocal and pointed answer about their chronology. This issue arises from the chronological incoherence given back by the radiocarbon analyses conducted on the wooden elements of many of these structures (mostly from the late Roman period) and from the fictile materials (mostly from the early imperial period and sometimes relating to rather wide chronological horizons, including between the 1st and 4th-5th centuries AD). The paper presents the results of a systematic study approach of the most representative amphoric deposits, combining integrated analyses related to the state of preservation of the findings, pointed quantification of fragments, and statistical simulations. It was thus possible to reach a reliable reconstruction of the phases of building and use over time of these embankments (1st-5th/6th centuries AD). A picture of a maritime reality extensively exploited by Altino and closely linked to it throughout the lifetime of the Roman city emerges
Aquileia porto fluviale - sponda orientale: nuovi dati e riflessioni sui depositi di anfore da allume
Full text linkThe paper illustrates a ceramic assemblage recently excavated by Ca’ Foscari University of Venice on the eastern riverbank of the river port of Aquileia. The deposit has been interpreted as a level of debris connected with the demolition of an artisanal installation, currently under excavation, consisting of at least one tank, lined with wood and connected to a system of water channels. The deposit consists of ca. 3750 fragmentary amphorae, originally transporting the alum extracted in Lipari and Melos (now Milos). The majority of the amphorae was produced in the Lipari Islands and can be classified as Lipari morphological types 1a and 2a-b. In addition, a number of fragmentary containers produced in the Aegean island of Milos, are also present in the examined context (variant 1 and 2), in the ratio of 9:1. So far, less than a couple of dozens of alum amphorae were known from Aquileia: therefore, the new data from Aquileia allow us to fill an anomalous gap in current distribution maps and, in addition, contribute to stimulate reflexion and discussion on aspects of production, trade and use of alum in the Roman period
Selci e ceramica pre-protostorica
Full text linkIl volume raccoglie i risultati della prima campagna della ricognizione archeologica effettuata dall’Università Ca’ Foscari nel sito di Altino, in località Ghiacciaia, un’ampia area di proprietà demaniale che corrisponde alla parte nord-orientale dell’abitato della città antica. Si tratta quindi di uno dei pochi interventi sistematici sull’area urbana, rimasta sino ad ora ai margini delle ricerche sulla città veneta. I docenti, i dottorandi e gli studenti coinvolti affrontano sia temi generali – dalla storia degli studi sull’area alle tecniche di ricognizione – sia il ricco materiale emerso nel corso della ricognizione, fornendone un basilare inquadramento tipologico e cronologico. L’indagine archeologica e la ricerca scientifica che in questi ultimi decenni hanno interessato l’area altinate mettono sempre più in luce la rilevanza del sito, che si impone come uno dei luoghi nodali nel panorama veneto dalla prima età del Ferro fino all’età tardoantica, indissolubilmente legato alla nascita di Torcello e quindi all’origine di Venezia
Lo scavo di piazza Santa Maria dei Battuti a Treviso
No full textThe archeological excavation in piazza S. Maria dei Battuti, in Treviso, was conducted from 2016 to 2018 under the scientific direc-tion of the local Superintendency as a preliminary to an urban renewal project which was to include the installation of new infrastructure underground and the reconstruction of the existing pavement. On the basis of archival data, historians had concluded that this site was first occupied in the Late Middle Ages and that its configuration had always been similar to the one it has now, i.e. an open space. Archeological research revealed a situation which was completely different. The remains of several different buildings were found, as well as two different burial grounds and a complex stratigraphy was observed which was related to a long period of time ranging from the Early Middle Ages to the contemporary era. This research demonstrates how this neighborhood was densely built up over period of at least six centuries. The data that we acquired during the excavation represent new and important elements that are useful for the reconstruction of medieval Treviso
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
Dispelling 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
- …
