1,721,057 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
The Super Fine-Grained Detector (SuperFGD) for the T2K neutrino oscillation experiment
No full textT2K is a long-baseline neutrino oscillation experiment in Japan that searches for leptonic CP violation. The magnetised near detector (ND280) has the role of constraining the dominant systematic uncertainties, related to the neutrino flux and interaction cross section, in the measurement of the neutrino oscillation probability. To improve the sensitivity to the CP violating phase, ND280 underwent a major upgrade concluded this year. Key is the 2-ton neutrino active target, called Super Fine-Grained Detector (SuperFGD). It is made of approximately 2’000’000 optically-isolated plastic scintillator 1 cm3 cubes each one read out by three orthogonal wavelength shifting (WLS) fibers coupled to about 56’000 silicon photomultipliers. The three views make it capable of 4 particle tracking with a proton detection threshold down to about 300 MeV/c. Combined with the nanosecond single-channel time resolution, a unique feature of SuperFGD is the detection of neutrons produced by neutrino interactions with the measurement of the energy via time of flight. This year, the fully-equipped detector successfully took physics data detecting neutrinos produced at J-PARC. In this seminar, the design of SuperFGD, its construction and the performance in the neutrino beam will be presented.
Coffee will be served at 10:30.</p
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
New (anti)neutrino results from the T2K experiment on CP violation in the lepton sector
No full textT2K is a long-baseline neutrino experiment in which a muon neutrino beam produced by J-PARC in Tokai is sent 295 km across Japan to the Super-Kamiokande detector, to study neutrino oscillations via the disappearance of muon neutrinos and the appearance of electron neutrinos. Since the start of operations in 2010, T2K has conclusively observed muon neutrino to electron neutrino oscillations, opening the door to the observation of CP violation in neutrino mixing, and performed the most precise measurement of the muon neutrino disappearance parameters. In a joint analysis between these two modes, T2K placed its first constraints on the CP-violating phase delta. Starting in 2014, T2K has been running primarily with an antineutrino beam in order to study the corresponding antineutrino oscillations, resulting in leading measurements of the muon antineutrino disappearance parameters. The joint analysis of neutrino and antineutrino data indicates that CP-conserving parameters lie outside the 90% confidence interval. In this talk, we will present recently-updated (since ICHEP) neutrino oscillation results. Other physics topics such as neutrino-nucleus interaction studies and searches for non-standard neutrino properties will also be discussed. Finally, the future prospects of the experiment, including a potential extension of the T2K program, will be presented
Constraints on the T2K neutrino flux prediction from hadron production measurements at NA61/SHINE
No full textAbstractNew measurements of hadron production with a proton beam on a 2 cm carbon target at 31 GeV/c performed by the NA61/SHINE collaboration are shown. The inelastic and production cross section are presented. Multiplicities of π±, K±, KS0, proton and Λ are shown. These measurements are fundamental to reduce the uncertainties on the neutrino flux at the T2K experiment. The procedure used to tune the T2K flux prediction with the measured spectra is explained as well
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
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