1,720,968 research outputs found

    Use of integrated geophysical methods to investigate a coastal archaeological site: the Sant’Imbenia roman villa (northern Sardinia, Italy)

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    We report here a multimethod geophysical investigation of the Sant'Imbenia Roman villa archaeological site in northern Sardinia (Italy). The main objective of this study is optimizing a non-invasive approach to reconstruct rapidly the geometry of coastal sites. A hitherto unexplored area of approximately 700 m2, adjacent to excavations, was investigated using ground-penetrating radar (GPR) and electrical resistivity tomography (ERT) surveys. The Sant'Imbenia villa is close to the present-day shoreline and subject to very high erosion rates and burial. A comparison of the high-resolution GPR and ERT models was made, and their integrated results are discussed in terms of providing a more complete picture that would not be attainable using a single method. Geophysical analysis combined with archeological prospecting has revealed buried buildings north of the excavated part of the archaeological site. The results show that in this coastal environment ERT survey provided the most accurate reconstruction at the deeper wet levels of investigation

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

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    “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

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    We 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

    Monitoring as strategy for planned conservation: the case of Sant’Andrea in Mantova (Mantua)

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    The synergy between Mantua Diocese, Direzione Regionale per i beni culturali e paesaggistici della Lombardia and Politecnico di Milano enabled the elaboration of a strategic conservation plan for some Mantova buildings of great significance to the city and to the owners: the planning of monitoring activities necessary to the conservation has experienced a further development as regards the structural aspects, after the earthquake, to improve performances vis-à-vis the updated seismic risk level. The collaboration between stakeholder bodies made it possible to systematise the resources needed to access available funds for scheduled conservation and innovative diagnostics over the last decade. The aim is to bring about the necessary conditions for an in depth examination of case studies pretty much representative of local building materials and techniques, for which to identify the best practices for conservation. The networks the bodies belong to permit the dissemination of the results achieved to a vast number of observers, stakeholders, owners, and other local bodies. The paper relates to the diagnostics part, including the innovative techniques employed alongside the more traditional and standardised ones, with a view to drawing up a program of checks and a plan of preventive actions, despite of a limited number of interventions. The monitoring measures and the inspections aim to mitigate some risk factors, among them the (up to now) advanced state of decay of some elements in the oldest buildings, whose maintenance would aggravate the conservation conditions, especially as regards decorated surfaces. Out of the analysed buildings, the case study herein described concerns the Basilica Concattedrale di Sant’Andrea Apostolo in Mantova, a mankind architectural heritage and, obviously, a city monument

    Dispelling the Myths Behind First-author Citation Counts

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    We 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

    Author Index

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    koamabayili/VECTRON-author-checklist: VECTRON author checklist

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    We 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
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