1,720,979 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Full text linkWe 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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe 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
Phonological similarity as an indicator of the accuracy of verbal short-term memory: behavioral and neuroanatomical studies.
No full textLa précision de la mémoire à court terme (MCT) est définie comme la qualité des représentations des items stockés en MCT plutôt que leur quantité. Les éléments sont disponibles en mémoire, mais leur accessibilité varie en termes d'exactitude de la représentation. L'objectif principal de ce projet était de proposer un paradigme innovant pour estimer la précision des représentations en MCT verbale en manipulant la similarité phonologique de non-mots à discriminer au sein d’une paire, à la fois comportementalement (étude 1) et neuro-anatomiquement (étude 2). Notre première étude visait à valider le matériel expérimental auprès de 20 jeunes adultes. Notre deuxième étude a examiné la précision des représentations neuronales des non-mots codés en MCT en utilisant une version IRMf de la tâche. Les résultats de l'étude 1 ont montré que les proportions de réponses correctes diminuent et que les temps de réponse augmentent avec la similarité phonologique. Les résultats préliminaires de l'IRMf suggèrent que les items peuvent être discriminés en fonction de leur pattern d’activation spécifique. L'ensemble du projet tend à montrer que la similarité phonologique est une variable prometteuse pour investiguer le concept de précision en MCT verbale dans plusieurs domaines : les patients ayant un déficit en MCT (e.g. trouble spécifique du langage) le vieillissement ou le multilinguisme.Short-term memory (STM) precision is defined as the resolution at which items are stored in STM. It refers to the notion that items are available in memory, but their accessibility varies in terms of accuracy of representation. The main goal of this project was to propose an innovative paradigm to estimate the accuracy of verbal STM representations using phonological similarity between a target item stored in STM and a probe item, both behaviorally (study 1) and neuroanatomically (study 2). Our first study aimed to validate the experiment’ material with 20 young adults. Our 2nd study investigated the precision of neural representations of non-words encoded in STM using an fMRI version of the task. Results of study 1 indicated a significant effect of phonological similarity on the proportions of correct answers and on the latency to answer. People tend to be less performant when phonological similarity is high between target and probe items. fMRI preliminary results suggested that nonwords can be discriminated based on their specific multivariate patterns activation. The whole project tends to show that phonological similarity is a useful variable for the investigation of the concept of precision in verbal STM in several fields: STM-impaired patients, aging or multilingualism
Exploration du contrôle cognitif : De la résistance à l'interférence aux stratégies de métamémoire chez les adultes âgés
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