1,720,973 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

    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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    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

    Chasing Newton: Designing and implementing an intrinsically integrated game on Newtonian mechanics

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    It has long been a coveted idea to combine the motivational aspects of games with learning in formal education. Digital educational games have indeed shown potential in this respect. However, individual educational games demonstrate large variations in (learning) outcomes. Ensuring that learning and gameplay are integrated with each other appears to be the key to obtaining higher learning outcomes. This is referred to as intrinsic integration. This dissertation adds to the body of knowledge on the characteristics that make educational games effective, realizing that no easy fix exists. To use a game in formal education, students should be able to transfer their acquired conceptual knowledge from the game context to other scenarios. This is possible by embedding the game in other learning activities. This dissertation describes four studies that were conducted to answer the main research question: How can a digital intrinsically integrated game be designed and implemented in a lesson fostering conceptual knowledge and transfer regarding Newtonian mechanics? Findings of our studies provide more insight on how students learn using a digital educational game. We developed a guiding frame for designing an intrinsically integrated game. Our studies demonstrate the benefits of embedding an educational game within other learning activities. Based on our findings, we give practical recommendations for such learning activities. Our studies provide an in-depth analysis, giving more insight on students’ learning and providing recommendations for others who want to venture into the wonderful world of game didactics

    Animated reasoning: Supporting Students’ Mechanistic Reasoning in Physics by Constructing Stop-Motion Animations

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    Mechanistic reasoning (MR), which is a form of causal reasoning, is an essential aspect of science education. To support students in developing MR, students in this series of studies were tasked with constructing and using a model in the form of a stop-motion animation (SMA). In SMA students create a sequence of frames (images) representing a natural phenomenon. After creating the SMA, they were asked to explain the phenomenon on the basis of their own model. This dissertation describes four separate studies that were conducted to address the main research question: How can student-constructed SMAs be used as a pedagogical approach to support students in developing MR? Our studies show, both theoretically and empirically, that the specific nature of SMA construction, i.e., breaking up a natural phenomenon in chunks and then sequencing these chunks in order to create the SMA, played a crucial role as a cognitive support for students in developing key elements of MR. Based on the findings, our studies suggest practical implications regarding for implementing SMA construction activities in a science classroom to support students’ MR. The results contribute to a more comprehensive understanding of the implementation of SMA-based modeling in science classrooms that supports students in developing MR, in particular, and in science learning, in general
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