1,721,055 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
Curr Opin Neurobiol
Full text linkThe dense connectivity in the brain means that one neuron's activity can influence many others. To observe this interconnected system comprehensively, an aspiration within neuroscience is to record from as many neurons as possible at the same time. There are two useful routes toward this goal: one is to expand the spatial extent of functional imaging techniques, and the second is to use animals with small brains. Here we review recent progress toward imaging many neurons and complete populations of identified neurons in small vertebrates and invertebrates.DP1 NS082121/DP/NCCDPHP CDC HHS/United StatesDP1 NS082121/NS/NINDS NIH HHS/United StatesDP1 OD008240/OD/NIH HHS/United StatesR01DA030304/DA/NIDA NIH HHS/United StatesR24 NS086601/NS/NINDS NIH HHS/United StatesU01 NS090449/NS/NINDS NIH HHS/United StatesHoward Hughes Medical Institute/United States2016-07-21T00:00:00Z25636154PMC495559
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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Establishment and Control of Behavioral Bias in Drosophila Melanogaster
No full textTypically, variability observed across populations of animals is considered to be experimental noise. However, it is clear that individuals display considerable idiosyncrasies in behavior that are stable over both short and long time scales. Understanding how individuality arises and is maintained within the nervous system is a major challenge in neuroscience.
I have found that biases in individuality in locomotor decision making are shaped during development, especially during pupation. Disruption of normal synaptic partner matching expands the magnitude of average locomotor biases in a population of flies. These biases are the product of the motor system of the fly. A key pre-motor circuit in the brain, the central complex, is likely to be a significant contributor to these biases. Using anatomical evidence from extensive morphological studies performed by other groups, we modeled a core component of this circuit and found that these deep brain neurons robustly form a ring attractor network under a variety of parameters, providing evidence for this circuit as a tracking system of heading in the fly. Finally, we have found that these locomotor biases are not as stable as previously thought, they can be modulated by ambient luminance, being sometimes dramatically different in the light and dark. This context dependence is mediated by vision and neurons within the central complex, namely the same ring attractor network. Furthermore, we have found evidence that output neurons of this network directly bias locomotor behavior due to asymmetric synaptic output into a downstream area of the central complex, the lateral accessory lobe, in a context dependent manner.Biology, Molecular and CellularLocomotion; Individuality; Central Complex; Protocerebral Bridge; Teneurin; GWAS; Drosophila melanogaste
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