1,721,152 research outputs found
Scavi nel santuario megalitico di Tas-Silg
No full textNell'ambito delle attività della Missione Archeologica Italiana a Malta, iniziate nel 1963, solo nel 2003 sono iniziati gli scavi direttamente finalizzati all'esplorazione dei livelli preistorici, sotto la direzione di A. Cazzella e G. Recchia, che proseguono con campagne annuali. Gli scavi hanno permesso di riconoscere altri 3 edifici templari megalitici, risalenti al III millennio a.C., oltre quello individuato negli anni '60. Sono stati inoltre messi in luce diversi altri ambienti di carattere monumentale, ma apianta quadrangolare, quasi del tutto sconosciuti precedentemente. E' stao inoltre possibile seguire tutta la sequenza staratigrafica preistorica, con la modificazione nell'uso degli ambienti e degli spazi durane l'età del Bronzo e all'inizio dell'etò del Ferro, fino ai primi contatti con i navigatori fenici, che trasfromarono il santuario secondo i propri modelli architettonici
Scavi nell'insediamento della Rocca di Oratino (CB)
No full textGli scavi nell'insediamento dell'età del Bronzo, posto ai piedi della Rocca di Oratino (CB) sono iniziati nel 2005 e continuano con campagne annuali dirette da A. Cazzella con la collaborazione di G. Recchia, V. Copat e M. Danesi. Gli scavi stanno mettendo in luce, in un'area interna del Molise poco nota tramite scavi per il periodo in esame, parte di un insediamento con una struttura di fortificazione in pietrame a secco e tracce di un tumulo funerario
Does roughness make elastic-adhesive contacts dissipative?
Full text linkIn this paper we investigate the adhesive contact between a rubber block and rigid randomly rough profiles, in loading and unloading conditions. The roughness is assumed to be described by a self-affine fractal on a limited range of wave-vectors. We employ a spectral method to generate such randomly rough surfaces with different root mean square roughness values and fractal dimensions. Calculations are performed for each profiles by means of an ad hoc numerical code previously developed by the authors.The calculated data are then statistically averaged, and the contact area, the applied load are shown as a function of the penetration, both for loading and unloading conditions. It is found that the combination of adhesion forces and roughness leads to a hysteresis loading-unloading loop, which might be unexpected for perfectly elastic materials. This result is very interesting as it shows that energy can be lost simply as a consequence of roughness and van der Waals forces. Our calculations enable us to numerically quantify such an energy loss and, in particular, to assess the influence of the surface statistical properties and the energy of adhesion on the hysteresis process
Scavi nell'insediamento dell'età del Bronzo di Monteroduni, loc. Paradiso
No full textGli scavi nell'insediamento dell'età del Bronzo a Monteroduni, loc. Paradiso (IS), hanno avuto luogo con campagne annuali dal 2003 al 2007, sotto la direzione di A. Cazella, con la collaborazione di G. Recchia, A. De Dominicis e C. Ruggini. Gli scavi, condotti in un'area interna poco nota del versante occidentale del Molise, hanno consentito di mettere in luce una struttura con diversi vasi in ceramica rotti in posto. Tra i reperti più significativi un frammento di ceramica tornita dipinta di tipo miceneo. Nel sito sono stati trovati anche numerosi frammenti di dolii, fabbricati localemnte a imitazione di una produzione di tipo miceneo
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
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