1,721,042 research outputs found

    Envision of a digital foundation to embed knowledge around all aspects of cultural heritage

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    Reviewing current results and applications in the domain of (digital) cultural heritage, such as virtual reality, digital information management,multimedia, makes evident that technologies and systems are nowadays pervasive in the investigation phases and in the analysis and exploitation of the scientific data. Applications of virtual reality by means of 3D representations of architectural and historical models are attracting a wide range of audience – especially in the tourist and multimedia sector. Typically, the emphasis is given to the visual representation and its impact to the user, giving less importance to the scientific accuracy and capacity of the platform to represent the whole “knowledge” associated to the cultural asset. There is a demanding need to envision approaches to communize all the elements of such multidisciplinary knowledge. A data set of coherent, structured, multidisciplinary, multi-source, multi-media information (that can be physically distributed) - constituted by “markers” (i.e. pertinent to a specific domain such as architectural, technical, structural, historical, bibliographical, archive related, photographical, physical, chemical, ...) – should give the capacity to implement Cultural Heritage platforms around a sort of a “Digital Foundation” of assets to support different applications and user experiences. Current approaches and availability of digital libraries, the accessibility of distributed information (e.g. by internet), the capacity to model data and meta-data, the availability of instruments to accurately position objects in space and time (together with ontological representations) let us envision a novel model of representing a dynamical evolving multi-source “digital foundation”. The above model, as the result of a multidisciplinary approach coming from a long experience in research and technologies in various fields (ICT architectures, Digital Libraries, Knowledge representation, Distributed infrastructures, GIS and applications of Satellite Navigation) and projects (National and European) is now experimented around the UNESCO Villa Adriana in Tivoli (Rome, Italy). It constitutes the center of excellence that allowed the authors to preliminary build a digital foundation for the area, demonstrating the capability to generate (among other features) accurate 3D virtual reality representations, distributed multi-source/multi-target and multi-modal representation for virtual guides and to support archeological studies and excavations for professional users. It furthermore implements capacities to manage, to control and to develop the necessary knowledge for the safeguard and conservation of the immense material associated to archeological sites

    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

    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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    The impact of histopathologic diagnosis on the proper management of testis neoplasms.

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    BACKGROUND: A 45-year-old man underwent a right orchiectomy for a rapidly growing testicular mass. After histologic and imaging examinations the patient was diagnosed with stage I (T1N0M0) seminoma. Approximately 2 months after surgery the patient began to complain of abdominal pain and a CT scan revealed a bulky retroperitoneal mass. The patient did not receive the planned prophylactic radiotherapy and was treated with combined cisplatin, etoposide and bleomycin chemotherapy; after the completion of this treatment he achieved complete remission. Three years later, and while still undergoing follow-up, the patient developed multiple neurological motor deficits.INVESTIGATIONS: Brain MRI and CT-guided biopsy.DIAGNOSIS: Diffuse large B-cell lymphoma of the testis, relapsing in the central nervous system.MANAGEMENT: High-dose methotrexate alone or in combination with high-dose cytarabine

    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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