1,720,977 research outputs found
Contrada Culunnedda (Ustica, PA)
Full text linkUstica è un’isola vulcanica posizionata a circa 40 km dalla costa di Palermo e si trova a ovest dell’arco eoliano, a circa 100 km dalla più vicina isola di Alicudi. L’occupazione dell’isola risale al Neolitico medio, quando Ustica diviene probabilmente un centro di snodo per scambio e lavorazione dell’ossidiana di Lipari. L’occupazione durante l’età del Rame è attestata non solo nelle grotte San Francesco e Azzurra, sul versante meridionale dell’isola, ma anche nel Piano dei Cardoni, con materiali dell’età del Rame iniziale e media. L’isola è sicuramente abitata tra la fine del Bronzo medio e il Bronzo recente, come testimoniato dall’importante presenza del Villaggio fortificato dei Faraglioni. Le fasi tra la fine dell’età del Rame e gli inizi dell’età del Bronzo sono invece meno note, con pochi rinvenimenti sparsi per l’isola e la presenza di tombe a grotticella nella parte sommitale della cd. Culunnedda, sulla dorsale orientale di M. Guardia dei Turchi. In questa contrada, in seguito al ritrovamento fortuito da parte di un cacciatore, Giovanni Mannino e Vito Ailara, conoscitori dell’isola e ispettori onorari della Soprintendenza di Palermo, esplorarono nel 1979 alcune tombe a grotticella con pozzetto di accesso laterale, per un totale di 4 celle funerarie (A, B, C e D). Queste conservavano al loro interno solo pochi materiali (pozzetti delle celle A, C e D), mentre la tomba B era del tutto priva di resti archeologici, fatta eccezione per qualche frammento di ossa non determinabile. Un’altra struttura, non segnalata dagli autori nella pubblicazione e parzialmente erosa, si trova poco più a Est e viene qui definita tomba E. La struttura delle tombe è costituita da un pozzetto di ingresso di circa cm 50-70 di profondità e una cella emisferica di circa 1/1.20 m di diametro. Gli studiosi attribuirono le sepolture alla “facies di Capo Graziano” per la presenza di frammenti ceramici con linee incise verticali parallele. Grazie al supporto del Museo Archeologico Regionale “A. Salinas”, sono stati ridisegnati e fotografati i materiali raccolti alla fine degli anni ’70, per potere interpretare meglio il contesto e inserirlo nel più ampio quadro delle dinamiche basso-insulari del Tirreno alla fine dell’età del Rame
Piano dei Cardoni (Ustica, Palermo): primi risultati dell'analisi sulle ceramiche del Neolitico Medio-Recente
No full textArchaeological research at the site of Piano dei Cardoni (island of Ustica) started in 2018 as part of the Brains2Islands project, funded by the INGV of Napoli and coordinated by the Soprintendenza ai BB.CC.AA of Palermo. Following a survey of the area, the first excavation trenches revealed a stratigraphy datable between the end of the Middle and the Late Neolithic (mid-5th mill. B.C.). In particular, a megalithic hypogeic tomb structure was uncovered, with secondary bone depositions both inside the burial cell and above and around the cover stone slab, testifying to an occupation over several centuries. The still-in progress study of the ceramic material, from both the layers inside the cell and those associated with the outer bone clusters, has allowed to identify 4 main ceramic classes, distinguished by technological features and surface treatment: coarse and smoothed ware; dark burnished ware, sometimes decorated with incisions/excisions; red burnished ware; red-on light painted ware. The typological analysis of the ceramic assemblage shows peculiarities related to the insular nature of the context, but also similarities with cultural aspects attested in the Aeolian Islands, Sicily and Southern Italy. The petrographic and micromorphological analyses carried out so far have revealed local production for most of the vessels, highlighting possible technological choices made by the potters in the selection of the raw materials
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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