125,565 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
Dispelling the Myths Behind First-author Citation Counts
No full textWe 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
Anatase nanoparticles on supergene platinum-palladium aggregates from Brazil: Titanium mobility in natural waters
No full textSupergene aggregates of platinum-palladium (Pt-Pd) intermetallic compounds from the Córrego Bom Sucesso alluvial deposit, Minas Gerais, Brazil, are coated with abundant, poorly crystalline nanoparticles of anatase (TiO2). The anatase coating is widespread, suggesting that the surface of the Pt-Pd grains catalytically destabilised Ti, which was likely dissolved by organic ligands in the ground waters. Association of TiO2 nanocrystallites with organic matter further suggests that biogenic processes could have mediated their formation. These anatase-coated Pt-Pd grains demonstrate an unexpected Ti mobility in supergene environments. © 2012 Elsevier B.V.Alexandre Raphael Cabral, Frank Reith, Bernd Lehmann, Joël Brugger, Guido Meinhold, Miguel Tupinambá, Rogerio Kwitko-Ribeir
Geschlechterdisparitäten in Berufs- und Karriereverläufen von MathematikerInnen und PhysikerInnen. Neues Forschungsprojekt am IFF
No full textMischau A, Grabarz K, Langfeld B, Reith F. Geschlechterdisparitäten in Berufs- und Karriereverläufen von MathematikerInnen und PhysikerInnen. Neues Forschungsprojekt am IFF. IFFOnZeit, Onlinezeitschrift des Interdisziplinären Zentrums für Frauen- und Geschlechterforschung (IFF). 2012;2:67-75
Leistung ist Silber, Anerkennung ist Gold. Geschlechterunterschiede im beruflichen Erfolg von MathematikerInnen und PhysikerInnen
No full textLangfeld B, Mischau A, Reith F, Griffith K. Leistung ist Silber, Anerkennung ist Gold. Geschlechterunterschiede im beruflichen Erfolg von MathematikerInnen und PhysikerInnen. In: Langfeldt B, Mischau A, eds. Strukturen, Kulturen und Spielregeln. Faktoren erfolgreicher Berufsverläufe von Frauen und Männern in MINT. Vol Bd.10. Schriften zur interdisziplinären Frauen- und Geschlechterforschung. Baden-Baden: Nomos; 2014: 76-111
Pragmatic Case Studies as a Source of Unity in Applied Psychology
No full textTo unify or not to unify applied psychology: that is the question. In this article we review pendulum swings in the historical efforts to answer this question—from a comprehensive, positivist, “top-down,” deductive yes between the 1930s and the early 60s, to a postmodern no since then. A rationale and proposal for a limited, “bottom-up,” inductive yes in applied psychology is then presented, employing a case-based paradigm that integrates both positivist and postmodern themes and components. This paradigm is labeled “pragmatic psychology” and, its specific use of case studies, the “Pragmatic Case Study Method” (“PCS Method”). We call for the creation of peer-reviewed journal-databases of pragmatic case studies as a foundational source of unifying applied knowledge in our discipline. As one example, the potential of the PCS Method for unifying different angles of theoretical regard is illustrated in an area of applied psychology, psychotherapy, via the case of Mrs. B. The article then turns to the broader historical and epistemological arguments for the unifying nature of the PCS Method in both applied and basic psychology.Peer reviewe
Dr. Edwin Wright Collection: Author Unknown
No full textNotes - The author relates several short stories about his neighbours including Alex McDonell, homesteading and life around Meanook and Athabasca (1 page
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe 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
Trust and Trustworthiness in the Fourth and Fifth Estates
No full textThe high contemporary salience in the social sciences of the topics of "trust" and "trustworthiness" has focused attention on the mass media’s putative role in eroding trust. Intrinsically, the absence in the mass media of the dialogic and interactive element to trust building identified by O’ Neill (2002) may suggest that the lack of trust and trustworthiness in the mass media is structural and recent penalties imposed by the UK communication regulator, Ofcom, on UK public service broadcasters including the BBC seem to support such a view. However, drawing on and adapting O’Neill, the author identifies two distinct potential media trust building strategies: one procedural (based in professional norms) and the second dialogic and interactive (nascent in “Web 2.0” applications). Focusing on UK Web 2.0 media sites the author identifies instances where the "dialogic" character of "Web 2.0" has established and enhanced trustworthiness. He argues normatively for a combination of "Web 2.0" interactivity and the adoption and implementation of self-regulatory codes in order to enhance the trustworthiness of the media
Measurement of the ratio of branching fractions B(B0→K∗0γ )/B(B0s→φγ ) and the directCP asymmetry inB 0→K∗0γ
No full textThe ratio of branching fractions of the radiative B decays B0→K⁎0γ and B0s→ϕγ has been measured using an integrated luminosity of 1.0 fb−1 of pp collision data collected by the LHCb experiment at a centre-of-mass energy of s√=7TeV. The value obtained is
B(B0→K⁎0γ)B(B0s→ϕγ)=1.23±0.06(stat.)±0.04(syst.)±0.10(fs/fd),
where the first uncertainty is statistical, the second is the experimental systematic uncertainty and the third is associated with the ratio of fragmentation fractions fs/fd. Using the world average value for B(B0→K⁎0γ), the branching fraction B(B0s→ϕγ) is measured to be (3.5±0.4)×10−5.
The direct CP asymmetry in B0→K⁎0γ decays has also been measured with the same data and found to be
ACP(B0→K⁎0γ)=(0.8±1.7(stat.)±0.9(syst.))%.
Both measurements are the most precise to date and are in agreement with the previous experimental results and theoretical expectations
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