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Il tratto di Aqua Claudia e Anio Novus tra Porta Furba e via Frascati: analisi tecnico-strutturale delle opere manutentive e di consolidamento antiche
Get PDFUna città come Roma, con una popolazione urbana mai vista nel mondo antico, ha sempre avuto bisogno di ingenti risorse. E l’acqua è senza dubbio una di queste. L’Aqua Claudia e l’Anio Novus furono quindi gli acquedotti che nella prima età imperiale andarono a soddisfare questo sempre più impellente bisogno, a causa dell’insufficienza dei sette acquedotti esistenti. Con un percorso di decine di chilometri, l’ultimo tratto dei quali sovrapposti su arcuazioni continue che arrivano anche a 30 metri di altezza, i due nuovi acquedotti insieme avevano una portata doppia, o maggiore, di tutti gli altri acquedotti. Scegliere di analizzare un singolo tratto, benché di circa 160 metri, parlando di una infrastruttura tale può sembrare riduttivo, ma si rende utile e necessario se si considera la varietà di soluzioni adottate in un’opera grande come questa. E il tratto qui analizzato è il più eccezionale proprio a causa di tutta la serie di interventi di manutenzione o riparazione succedutisi, che ne hanno ampiamente modificato forma, dimensioni, e soprattutto statica e funzionamento strutturale. Un grande impegno quindi, economico, organizzativo, e soprattutto duraturo nei secoli, nel mantenere in funzione ed in buono stato un’infrastruttura così importante, di cui attraverso il rilievo strumentale coadiuvato da fotogrammetria 3D dell’intera struttura si è potuto analizzare ogni modifica ed identificarne le cause che ne hanno determinato la necessità.A city like Rome, with an urban population never seen in the ancient world, always needed huge resources. And water is without a doubt one of these. The Aqua Claudia and the Anio Novus were therefore the aqueducts that in the first imperial age went to satisfy this increasingly urgent need, due to the insufficiency of the seven existing aqueducts. With a path of tens of kilometers, the last part of which overlapped on continuous arches that even reach 30 meters high, the two new aqueducts together had a double flow rate, or greater, of all the other aqueducts. Choose to analyze a single section, although about 160 meters, talking about such an infrastructure may seem reductive, but it useful and necessary if we consider the variety of solutions adopted in a work as big as this. And the part here analyzed is the most outstanding, precisely because of the whole series of maintenance or repair successive, which have widely modified shape, size, and above all static and structural functioning. A great commitment, therefore, economic, organizational, and above all lasting over the centuries, in keeping in function and in good condition an infrastructure so important, of which through the instrumental survey supported by 3D photogrammetry of the entire structure, it was possible to analyze every change and identify the causes that resulted in the necessity
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
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