1,721,249 research outputs found

    Endovascular management of ischemic stroke: a case-based approach/ [edited by] Vitor Mendes Pereira, Adam A. Dmytriw, Lee-Anne Slater, Sarah Power, Timo Krings

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    Includes bibliographical references and index"Stroke is the most prevalent cerebrovascular emergency, impacting an estimated 15 million people worldwide every year. Endovascular treatment (EVT) of ischemic stroke has expanded at an unforeseen pace, with EVT the most common neurointerventional procedure performed at most large centers. Endovascular Management of Ischemic Stroke: A Case-Based Approach by renowned stroke pioneer Vitor Mendes Pereira and distinguished co-editors features contributions from a "who's who" of global experts. This practical resource provides straightforward guidance for clinicians who need to learn and master state-of-the-art endovascular interventions reflecting the new, evidence-based treatment paradigm for acute stroke"--1 online resourc

    Supplemental material for Dynamic nature of intracranial venous sinuses in idiopathic intracranial hypertension

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    Supplemental Material for Dynamic nature of intracranial venous sinuses in idiopathic intracranial hypertension by Patrick Nicholson, Stéphanie Lenck, Walter Kucharczyk and Vitor Mendes-Pereira in Interventional Neuroradiology</p

    Avaliação de um sistema de tratamento de água por abrandamento no município de Mossoró.

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    Water is essential for the maintenance of life and for industrial processes, it is present in several sectors of the industry. Popularly known as a universal solvent, water has a resource of dissolving substances, of a similar nature, present in it. However, to make efficient use of water, it is necessary to present characteristics such as pH value and duration within a standard range. For both, some cases use some type of treatment for the same use values of their properties. An example of a well-known treatment is the softening filter, which, when associated with other treatment processes, can provide water with the necessary resources for its use. The work in question concerns the analysis of a water treatment process based on the use and the slowest dosage of chemicals in the Mossoró region.A água é essencial para a manutenção da vida e para os processos industrias, pois está presente em diversos setores da indústria. Conhecida popularmente como solvente universal, a água possui a característica de dissolver substancias, de natureza semelhante, que estão presentes nela. Contudo, para se fazer uso da água de forma eficiente, é necessário que esta apresente características, tais como valor de pH e dureza dentro de uma faixa predefinida. Para tanto, em alguns casos utiliza-se algum tipo de tratamento para que a mesma apresente valores adequados de suas propriedades. Um exemplo de tratamento conhecido é o filtro de abrandamento, este, que, quando atrelado a outros processos de tratamento consegue fornecer água com as características requisitadas para seu uso. O trabalho em questão se preocupou em analisar um processo de tratamento de água a base do uso do abrandado e da dosagem de produtos químicos na região de Mossoró.Trabalho não financiado por agência de fomento, ou autofinanciad

    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

    sj-docx-2-ine-10.1177_15910199231158444 - Supplemental material for Development of an in-vitro model based on patient vessel geometry for simulated use testing in neurointerventional surgery

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    Supplemental material, sj-docx-2-ine-10.1177_15910199231158444 for Development of an in-vitro model based on patient vessel geometry for simulated use testing in neurointerventional surgery by Mark Epshtein, Mohammed Salman Shazeeb, Anna Luisa Kühn, Vania Anagnostakou, Christopher M. Raskett, Robert M. King, Mayank Goyal, Vitor Mendes Pereira, Adam S. Arthur, Ajit S. Puri, David Fiorella and Matthew J Gounis in Interventional Neuroradiology</p

    sj-stl-1-ine-10.1177_15910199231158444 - Supplemental material for Development of an in-vitro model based on patient vessel geometry for simulated use testing in neurointerventional surgery

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    Supplemental material, sj-stl-1-ine-10.1177_15910199231158444 for Development of an in-vitro model based on patient vessel geometry for simulated use testing in neurointerventional surgery by Mark Epshtein, Mohammed Salman Shazeeb, Anna Luisa Kühn, Vania Anagnostakou, Christopher M. Raskett, Robert M. King, Mayank Goyal, Vitor Mendes Pereira, Adam S. Arthur, Ajit S. Puri, David Fiorella and Matthew J Gounis in Interventional Neuroradiology</p

    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
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