1,720,975 research outputs found

    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

    Italian Presence in the Dodecanese 1912–1943: Teaching a History Topic in Weebly Environment

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    AbstractThe purpose of this study was to explore the efficiency of the web 2.0 tool, Weebly, in history learning from the perspective of the students. The following historical topic: “Italian presence in the Dodecanese 1912-1943” in Weebly environment was chosen as case-study. The author executed an empirical web-based survey to collect data for this study. The study results illustrated a clear enhancement of the knowledge of the historical context and at the same time a great boost to the motivation of the students to participate in class activities. In parallel, the study examined the views of the students on the functionality and the degree of collaboration among class members with the use of the specific Web 2.0 tool, including any potential barriers. The results demonstrated a great level of satisfactory functioning of Weebly in history learning and a considerable promotion of team-spirited work. The most significant obstacles of this Web 2.0 tool issued by the students were: 1. unease and nervousness with openness 2.prolonged time to understand the too

    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

    Ambient noise tomography of the western Corinth Rift, Greece

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    The Corinth Rift separates Peloponnesus to the south from main-land Greece to the north. It is one of the most active extensional intra continental rifts in the world, with geodetically measured rates of extension varying from 5nbsp;mm/yr at the eastern part to 15 mm/yr at the western part. This work presents a first attempt to study the crustalnbsp;velocity structure of the western Corinth Rift using ambient noise recordings. We used 3 yrs (01/2012-12/2014)nbsp;of continuous waveform data recorded at 24 stations from the Corinth Rift Laboratory (CRL) and the Hellenicnbsp;Unified Seismological Network (HUSN). All available vertical component time-series were cross-correlated tonbsp;extract Rayleigh wave Greenrsquo;s functions. Group velocity dispersion curves between 0.5 and 7 s period were measurednbsp;for each station pair by applying frequency-time analysis and then inverted to build group velocity maps ofnbsp;the study area. At the studied periods, the northern coast of the Corinth Rift is generally imaged as a region ofnbsp;elevated seismic velocities compared to the southern coast. More specifically, low velocities are observed in areasnbsp;of Plio-Quaternary syn-rift sediments such as off-shore regions of the rift, the Mornos delta and a large part ofnbsp;the southern coast. Higher velocities are observed in pre-rift basement structures which are dominated mostly bynbsp;carbonates. The preliminary results demonstrate good agreement with the major geological features of the areanbsp;and agree relatively well with previous local earthquake tomography studies. This work will be the base for furthernbsp;investigations towards the study of the Corinthnbsp;Rift structure using long timenbsp;series of ambient noise data./p

    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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