1,720,991 research outputs found
Edifici di culto non cristiano a Ostia tra IV e V secolo d.C. Il caso dei mitrei
Full text linkL'antica città di Ostia ha restituito il maggior numero di mitrei noti in contesto urbano, presenti in ogni quartiere attualmente conosciuto e sempre ricavati all'interno di edifici preesistenti. La tesi in oggetto intende esaminare la tematica relativa alle modalità di installazione e soprattutto abbandono dei suddetti mitrei, in relazione all'ascesa e diffusione della religione cristiana. Nell'ottica di rivedere e aggiornare il catalogo edito da Giovanni Becatti ormai più di sessant'anni or sono, ci si è inoltre prefissi lo scopo di superare la tradizionale identificazione del mitreo con il solo spelaeum, la vera e propria aula di culto, cercando di definire tutti gli spazi propriamente mitraici nell'ambito dei complessi in cui essi vennero installati. La ricerca è stata portata avanti anche grazie all'utilizzo delle moderne tecniche di rilievo bi- e tridimensionale, utili alla realizzazione di una nuova documentazione grafica relativa ai mitrei.In the ancient city of Ostia there is the largest number of mithraea in an urban context, present in every neighborhood currently known and always obtained within pre-existing buildings. The thesis intends to examine the issue concerning the modalities of installation and particularly abandonment of the mithraea, in relation to the rise and spread of the Christian religion. In order to review and update the catalog published by Giovanni Becatti now more than sixty years ago, we have also tried to overcoming the traditional identification of the mithraeum with the spelaeum, the cult room, in an attempt to define all the proper mithraic spaces within the complexes in which they were installed. The research has been carried out also with the modern bi- and three-dimensional relief techniques, useful for the realization of a new graphic documentation of the mithraea
Symbols of Identity and Culture of the Monogram in the Late Antique Mithraism : The Case of Ostia
Full text linkThe highest number of mithraea in urban context of the ancient world come from Ostia. Although we do not know the whole city, mithraea have been found in all districts of the town. The spread and fortune of the Mithraic worship are also attested by the plenteous epigraphic and sculptural materials. This research deals with the Mithraism at Ostia, focusing on the particular case of monograms, just mentioned by Giovanni Becatti in his seminal work about mithraea at Ostia, dating back to more than sixty years ago. After the recent discovery of the Mithraeum of colored marbles by the archaeologists of the Ostia Marina Project (University of Bologna), it seems necessary to examine and contextualize the phenomenology of Mithraic monograms at Ostia, as is done in relation to similar processes which involve the Christian world
Persistenze archeologiche nell’area della città sepolta di Aquae Tauri
No full textIndagini di superficie e documentazione delle strutture emergenti nell'area della città di Aquae Tauri
The evolution of the corrosion process of medieval objects through IR-spectroscopy
No full textThe investigation of the chemical composition and microstructure of archaeological metal artifacts is
essential for understanding degradation processes, with a particular attention to the corrosion, often triggered
by prolonged periods of burial.
This study focuses on the characterisation of the metal structure of a set of agricultural tools remains
dating from the 13th to 14th centuries, unearthed in the site of Cencelle, a medieval settlement near the Tolfa
Mountains (central Italy), founded in the 9th century and abandoned since the 17th century AD (Annoscia,
2016). The main objective is to understand the underlying causes of degradation, assess conservation status,
and unravel the composition of patinas and corrosion products formed during and after burial period (Grevey
et al., 2020).
To achieve these objectives, a comprehensive multi-analytical approach has been adopted, encompassing
techniques such as Optical Microscopy, Electron Microscopy coupled with Energy Dispersive X-ray analysis,
and Infrared spectroscopy. Significantly, infrared spectroscopy plays a crucial role in identifying both organic
and inorganic materials within the samples, as well as to identify the nature of the patinas and the corrosion
products growth on the samples surfaces also after their preparation.
By analysing data acquired through Infrared spectroscopy, it becomes possible to identify compounds
present in corrosion products and determine their implications on the conservation status of metal artifacts.
This methodological framework offers detailed insights into the nature and composition of materials within the
samples, enhancing understanding of degradation mechanisms, and guiding the formulation of conservation
and restoration strategies.
In conclusion, integrating Infrared spectroscopy with complementary analytical methodologies provides a
robust approach for the systematic examination of archaeological metal artifacts and their associated degradation
processes. The outcomes of this investigation provide substantive contributions towards the preservation and
valorisation of medieval cultural heritage.
Annoscia G. M. (2016) - Per una storia agraria di Leopoli-Cencelle: gli attrezzi agricoli (XIII-XV secolo). Scienze
dell’Antichità 22.1, 177-187.
Grevey A. L. et al. (2020) - Microstructure and long-term corrosion of archaeological iron alloy artefacts. Herit. Sci.,
8(57), https://doi.org/10.1186/s40494-020-00398-9
Livia Tellus. Forlì da forum a civitas. Aspetti di storia urbana e del territorio
No full textIl volume, dedicato al momento germinativo della città di Forlì, non ambisce ad essere una carta archeologica, un GIS o un catalogo, e neppure un atlante archeologico. Ha però l’obiettivo di affrontare le tematiche geoambientali, urbanistiche e territoriali avvalendosi a tutto campo della testimonianza archeologica, anche quando questa sia scopertamente deficitaria. La scommessa nasce dalla volontà di rivendicare non tanto l’obbligo metodologico di definire un’immagine risolutiva di un paesaggio nella sua dinamica storica, quanto la necessità di ricostruire correttamente la sequenza degli interrogativi e delle possibili risposte di fronte ai problemi di una città enigmatica, oggi in gran parte appiattita e sfigurata, talora irrimediabilmente,
dalla “modernità” del Novecento. È qui dunque presentato il frutto di un impegno decennale svolto dagli autori nell’ambito delle attività del Dipartimento di Archeologia (ora Dipartimento di Storia, Culture e Civiltà) dell’Università di Bologn
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
Il pavimento del nuovo mitreo dei marmi colorati a Ostia antica
No full textIl contributo descrive e analizza la recentissima scoperta compiuta dal Progetto Ostia Marina dell'Università di Bologna del pavimento marmoreo del nuovo Mitreo ostiense definito "dei marmi colorati", portando alcuni confronti e presentando la campagna di rilievi di cui lo stesso pavimento è stato oggetto durante le indagini del 2014
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