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Transformal Valued Fields
No full textBy an w-increasing transformal valued field we mean a valued field equipped with a distinguished endomorphism which is locally infinitely contracting on the unit disc. We show that the basic constructions of ramification theory, such as Henselization and strict Henselization, admit meaningful analogues in those generalized settings. Model theoretically, we determine the model companion of the theory of w-increasing transformal valued fields; it is decidable and admits elimination of quantifiers to the level of finite covers. As an application, we determine the elementary theory of algebraically closed valued fields equipped with a distinguished Frobenius, in the regime where the prime power is large
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
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
Generic dichotomy for homomorphisms for
Get PDFWe prove the following dichotomy. Given an analytic equivalence relation , either or else any Borel homomorphism from to is very far from a reduction , specifically, it factors, on a comeager set, through the projection map for some . As a corollary, we prove that is a prime equivalence relation, answering a question on Clemens
The finite Friedman-Stanley jumps: generic dichotomies for Borel homomorphisms
Get PDFFix or . We prove a dichotomy for Borel
homomorphisms from the -th Friedman-Stanley jump to an equivalence
relation which is classifiable by countable structures: if there is no
reduction from to , then in fact all Borel homomorphisms are very
far from a reduction. For this we use a different presentation of ,
equivalent up to Borel bi-reducibility, which is susceptible to Baire-category
techniques.
This dichotomy is seen as a method for proving positive Borel reducibility
results from . As corollaries we prove: (1) for ,
is in the spectrum of the meager ideal. This extends a result of Kanovei,
Sabok, and Zapletal for ; (2) is a regular equivalence
relation. This answers positively a question of Clemens; (3) for ,
the equivalence relations, classifiable by countable structures, which do not
Borel reduce are closed under countable products. This extends a
result of Kanovei, Sabok, and Zapletal for
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