186,707 research outputs found
On W-algebra extensions of (2,p) minimal models: p>3
No full textAbstractThis is a continuation of Adamović and Milas (2010) [5], where, among other things, we classified irreducible representations of the triplet vertex algebra W2,3. In this part we extend the classification to W2,p, for all odd p>3. We also determine the structure of the center of the Zhu algebra A(W2,p) which implies the existence of a family of logarithmic modules having L(0)-nilpotent ranks 2 and 3. A logarithmic version of Macdonald–Morris constant term identity plays a key role in the paper
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Financial Stability and Monetary Policy
No full textWe argue that although UK monetary policy can be described using a Taylor rule in 1992-2007, this rule fails during the recent financial crisis. We interpret this as reflecting a change in policymakers’ preferences to give priority to stabilising the financial system. Developing a model of optimal monetary policy with preference shifts, we show this provides a superior empirical model over crisis and pre-crisis periods. We find no response of interest rates to inflation during the financial crisis, possibly implying that the UK abandoned inflation targeting during the financial crisis.monetary policy, financial crisis
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
The structure of Zhuʼs algebras for certain W-algebras
No full textAbstractWe introduce a new approach that allows us to determine the structure of Zhuʼs algebra for certain vertex operator (super)algebras which admit horizontal Z-grading. By using this method and an earlier description of Zhuʼs algebra for the singlet W-algebra, we completely describe the structure of Zhuʼs algebra for the triplet vertex algebra W(p). As a consequence, we prove that Zhuʼs algebra A(W(p)) and the related Poisson algebra P(W(p)) have the same dimension. We also completely describe Zhuʼs algebras for the N=1 triplet vertex operator superalgebra SW(m). Moreover, we obtain similar results for the c=0 triplet vertex algebra W2,3, important in logarithmic conformal field theory. Because our approach is “internal” we had to employ several constant term identities for purposes of getting right upper bounds on dim(A(V)).This work is, in a way, a continuation of the results published in Adamović and Milas (2008) [4]
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
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
Dr. Edward P. Wimberly, ITC, July 2011
No full textThis video is a conversation with Dr. Edward P. Wimberly. Dr. Wimberly talks about his book, "No Shame in Wesley's Gospel: A Twenty-First Century Pastoral Gospel". Brad Ost, AUC Woodruff Library, is the interviewer
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