1,720,984 research outputs found
The role of the thalamic nuclei in recognition memory accompanied by recall during encoding and retrieval: An fMRI study
No full text
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
The role of attention in percerving social information: behavioral and electrophysiological studies
Get PDFGesichter und Körper bevorzugt beachtet werden wenn sie in Konkurrenz zu objekten auftreten. Es ist denkbar dass das visuelle System die Priorität bei selektiver Aufmerksamkeit auf solche stimuli legt die in spezialisierten kortikalen Regionen repräsentiert werden wie es für Gesichter und Körper diskutiert wird. In dieser These wird untersucht,welche Rolle Aufmerksamkeit bei der Wahrnehmung sozialer Reize imVergleich zu Objekten spielt. Dazu wird in drei Studien der Grad der Aufmerksamkeit, der auf irrelevante unbekannte Gesichter, menschliche Körper, Körperteile und Objekte gerichtet werden kann, im Sinne der "Perceptual Load Theory"manipuliert. Dazu wurden Buchstabenreihen über irrelevante Distraktorreize präsentiert und gleichzeitig die Aufmerksamkeitsanforderungen variiert. In Studie I wurde der Einfluss dieser Manipulation auf unbekannte Gesichter und Häuser untersucht.Studie II testete zusätzlich den Einfluss von Stimulusorientierung für Gesichter und Körper die entweder vollständig oderperzeptuell verändert gezeigt wurden. Um mögliche Einflüsse spezifischer Neuronenpopulationen auf Inversions effekte zu untersuchen wurde von den Bildern der Gesichter die Augenregion entfernt während bei Bildern menschlicher Körper der Kopf entfernt wurde. Im Unterschied hierzu wurde kein Einfluss von Load auf die Verarbeitung menschlicher Körper gefunden was nahelegt dass diese weder holistisch noch merkmalsbasiert verarbeitet werden.Stattdessen könnte dieVerarbeitung von Körpern durch einen spezialisierten Mechanismus erfolgen der abgrenzbar von den korrespondierenden Verarbeitungsmechanismen für Gesichter und Objekte ist.Ergebnisse aus StudieIII legen nahe dass irrelevante unbekannte Distraktorgesichter mentale Gesichterrepräsentationen in gleichem Ausmaß unter hoher und niedriger Aufmerksamkeit-sauslastung aktivieren. Zusätz-lichuntermauern die Befunde, dass N250r eine spezifisch für unmittelbare Wiederholungen von Gesichtern auftretende EKP-Komponente darstellt.Faces and bodies may prioritize attentional selection compared to other objects, and visual system may assign attentional priority to those stimuli that are represented in strongly selective cortical regions. I investigated the role of attention in perceiving those stimuli versus objects. Attention was manipulated sensu perceptual load theory to task-irrelevant distractor unfamiliar faces, human bodies, body parts and houses, by superimposing letter strings over distractor and increasing attentional demands of a letter identification task. In study investigated the effect of load on distractor unfamiliar faces and houses. Study II additionally investigated effects of stimulus orientation. Study III indirectly tested encoding of distractor faces, hands and houses by implementing an immediate repetition priming paradigm. In studies, I and II, effects of load were found for upright faces, with decreased the N170 amplitudes under high load. In contrast, study I, revealed N170 enhancement for houses. However, no load effect was observed for human bodies in study II. Similarly, no effect on N170 was found for either manipulated or inverted stimuli. Inversion effects with increased negativities for inverted than upright orientations occurred for all categories except eyeless faces irrespective of load. Eyeless faces showed reduction N170 for inverted than upright Stimuli. Study III demonstrated that N250r, is highly specific to faces, but occurs irrespective of load to initial presentation of faces alone not other categories. These findings suggest that perceptual load may affect both holistic and part-based aspects of structural encoding of faces and houses, respectively, while no effect on human bodies, suggesting that bodies may be processed by a mechanism that is dissociable both from face and object mechanisms. Study III indicated that unfamiliar distractor faces may activate facial representations to a similar extent under low and high perceptual load
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
- …
