1,720,967 research outputs found
Regulators in the Arithmetic of Function Fields
Get PDFAs a natural sequel for the study of -motivic cohomology, initiated in
[Gaz], we develop a notion of regulator for rigid analytically trivial Anderson
-motives. In accordance with the conjectural number field picture, we define
it as the morphism at the level of extension modules induced by the exactness
of the Hodge-Pink realization functor. The purpose of this text is twofold: we
first prove a finiteness result for -motivic cohomology and, under a weight
assumption, we then show that the source and the target of regulators have the
same dimension. It came as a surprise to the author that the image of this
regulator might not have full rank, preventing the analogue of a renowned
conjecture of Beilinson to hold in our setting.Comment: v1->v2: Corrections: removed the mixedness assumption; changed some
notations to improve readability; added details; corrected typo
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Carlitz twists: their motivic cohomology, regulators, zeta values and polylogarithms
Get PDFThe integral -motivic cohomology and the class module of a (rigid
analytically trivial) Anderson -motive were introduced by the first author
in [Gaz22b]. This paper is devoted to their determination in the particular
case of tensor powers of the Carlitz -motive, namely, the function field
counterpart of Tate twists . We find out that
these modules are in relation with fundamental objects of function field
arithmetic: integral -motivic cohomology governs linear relations among
Carlitz polylogarithms, its torsion is expressed in terms of the denominator of
Bernoulli-Carlitz numbers and the Fitting ideal of class modules is a special
zeta value. We also express the regulator of for positive
in terms of generalized Carlitz polylogarithms; after establishing their
algebraic relations using difference Galois theory together with the
Anderson-Brownawell-Papanikolas criterion, we prove that the regulator is an
isomorphism if, and only if, is prime to the characteristic.Comment: This represents a significant update compared to the previous
version. Notably, our late conjecture regarding the Fitting ideal of the
torsion in the class module, expressed as Carlitz zeta values, has been
established (Thm. C). Additionally, we clarified the connection between
integral t-motivic cohomology and Carlitz polylogs (Thm. A) and determined
the regulator rank
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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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