1,721,356 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
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
Effect of the Environment on Vibrational Infrared and Circular Dichroism Spectra of (S)-Proline
No full textThe infrared and vibrational circular dichroism of proline in water
solution are investigated ab initio employing density functional theory and the integral
equation formalism (IEF) version of the polarizable continuum model (PCM). Three
solvent models are exploited to evaluate solvent effects in the 1000–2000 cm1
frequency range: a pure implicit continuum approach, a pure explicit model (limited to
three solvent molecules), and a combined specific/continuum approach. Effects on
spectra arising from different protonation states (neutral, zwitterionic, cationic, and
anionic) are analyzed
The infrared and vibrational circular dichroism spectra of (S)proline in water: an ab initio study
No full textNEA-WPFC/FCTS Benchmark for Fuel Cycle Scenarios Study with COSI6
No full textThe ENEA participation to the Expert Group on Fuel Cycle Transition Scenarios Studies (FCTS) of NEA-WPFC aims at the identification and analysis of several possible scenarios for nuclear fuel cycle management. In particular, ENEA activity is being focused on three main branches:
1. the analysis of national and regional scenarios, to advance sustainable hypotheses for the development of cooperative nuclear fuel cycle policies and the installation of common facilities;
2. the generation of code specific libraries to model the burn up behaviour of new reactors (in particular, Gen-IV fast reactors) and transmuters (in particular, ADS like facilities such as EFIT) for achievable scenarios;
3. the use and benchmarking of the COSI6 [1] code for fuel cycle analysis, developed and maintained at CEA-Cadarache.
To begin the ENEA WPFC-FCTS participation, an initial set-up phase is needed, in order to align the internal knowledge about the scenarios simulation instruments and techniques with other Working Party members.
A series of benchmarking exercises have been performing by the WPFC [2] to take aim at covering the most part of cases for both statical, single reactor Burn Up (BU) analysis and more complex scenarios with different types of reactors running together. The benchmark is therefore divided in two parts:
1. the first one is devoted to depletion calculations of three different reactors: • a PWR loaded with UOX fuel; • a PWR loaded with MOX (U, Pu and Am) fuel; • a Na-FR loaded with MOX (U, Pu, Am, Np and Cm) fuel;
2. the second one is dedicated to three transition scenarios:
• an open cycle in PWRs;
• the monorecycling of Plutonium in PWRs;
• the monorecycling of Plutonium in PWRs and then the deployment of Gen IV fast reactors (FRs) recycling Plutonium and Minor Actinides (MAs).
A more detailed presentation of the benchmark exercises will be presented in the following § 2 and 3.
All the described cases have then been analyzed with the COSI6 code for fuel cycle analysis, and the results, reported in § 5, will be presented to the FCTS Expert Group in April, 2008
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