1,721,410 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
Searches for low- and high-mass resonances with the ATLAS detector
No full textSeveral theories beyond the Standard Model predict the existence of new particles decaying into pairs of gauge bosons. These states generally have masses larger than that of the Higgs boson, while some theories predict resonances with masses smaller than it. The latest ATLAS results on searches for such resonances in final states with leptons and photons based on pp collision data collected at 13 TeV will be presented
Charged Higgs boson searches with ATLAS
No full textCharged Higgs search using 5fb^(-1) with the ATLAS detecto
Search and prospects for BSM Higgs with the ATLAS detector at the LHC
No full textAlmost two years ago, ATLAS and CMS announced the observation of a new boson with a mass of approximately 125 GeV. The properties of this newly discovered boson make a convincing case that it is a Higgs boson related to the BEH mechanism of spontaneous breaking of the electroweak (EW) symmetry. Yet, it remains an open question whether it is the Standard Model (SM) Higgs boson, which is a single elementary scalar particle, or one physical state of an extended scalar sector, as predicted by the two-Higgs-doublet-model (2HDM). There are various ways of trying to answer this exciting question: • Looking for additional scalar particles (e.g. charged Higgs bosons - light and heavy @ 7-8 TeV). This is the main subject of my thesis. • Determining the spin/CP quantum numbers. • Measuring precisely the couplings to fermions and vector bosons. • Studying additional production mechanisms which are not possible in the SM (e.g. from CP-odd decay). During my PhD research, I was involved with each of these topics, some of which will only be resolved in a few years time, once ATLAS will collect enough data. In this thesis I review only analyses in which I took a major part, from analyzing the 7 TeV data searching for new particles, to studies which make the case for the upgrade of the LHC in general and ATLAS in particular
Searching for additional Higgs bosons at ATLAS
No full textSearching for additional Higgs bosons at ATLAS at LLWI202
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
Overview of searches for singly-charged Higgs bosons in ATLAS"
No full textMany extensions of the Standard Model introduce additional Higgs-like bosons, some of which carrying an electric charge. The current status of searches for singly-charged Higgs bosons in ATLAS, based on the LHC Run 2 dataset, are presented
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