1,354,614 research outputs found
Church of Chora: Istanbul's Byzantine Marvel
No full textThe Church of Chora book is the most comprehensive digital guide describing some of the oldest and finest surviving Byzantine mosaics and frescoes in the Church of the Holy Saviour (formerly the Kariye Camii and now the Kariye Müzesi) in Chora located in Edirnekapı district, Istanbul, Turkey. The Church of Chora book has been created with such passion and zest, the way I always feel entering the building. The use of interactive maps, voice narrations, and videos greatly improve reader experience. It provides unique and very detailed photographs capturing some of the oldest and finest surviving Byzantine mosaics and frescoes as well as citations and references from the Old and New Testament. It gives readers an opportunity to learn about the life of the Virgin Mary and Jesus Christ among other biblical events. One evidently comes to appreciate the work of Theodoros Metochites, the church’s main instigator. It’s an emotional feeling one gets seeing the grand Byzantine architecture and exquisite detailed work all around the building, delivering a stunning experience for any visitor. You will dive deep into the beautiful depiction of Christianity as this digital guide will educate, entertain, and hopefully bring you to visit Istanbul and see its magnificence
The linear polarization constant of R^n
No full textThe present work contributes to the determination of
the n-th linear polarization constant cn(H) of an n-dimensional
real Hilbert space H. We provide some new lower bounds on the
value of supkyk=1 | hx1, yi · · · hxn, yi |, where x1, . . . , xn are unit vectors
in H. In particular, the results improve an earlier estimate of
Marcus. However, the intriguing conjecture cn(H) = nn/2 remains
open
Supplemental Material, jmr.17.0305-web_appendices - The Impact of a Complement-Based Assortment Organization on Purchases
No full textSupplemental Material, jmr.17.0305-web_appendices for The Impact of a Complement-Based Assortment Organization on Purchases by Panagiotis Sarantopoulos, Aristeidis Theotokis, Katerina Pramatari, and Anne L. Roggeveen in Journal of Marketing Research</p
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
Extremal Homogeneous Polynomials on Real Normed Spaces
No full textAbstractIfPis a continuousm-homogeneous polynomial on a real normed space andPis the associated symmetricm-linear form, the ratio ‖P‖/‖P‖ always lies between 1 andmm/m!. We show that, as in the complex case investigated by Sarantopoulos (1987,Proc. Amer. Math. Soc.99, 340–346), there areP's for which ‖P‖/‖P‖=mm/m! and for whichPachieves norm if and only if the normed space contains an isometric copy of ℓm1. However, unlike the complex case, we find a plentiful supply of such polynomials providedm⩾4
Variations on the Author
No full text“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
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
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Accuracy of subject and author indexes in five anaesthesia journals
No full textTo determine the accuracy of subject and author indexes in five anaesthesia journals we examined all 1989 and 1991 volumes of Anesthesia and Analgesia, Anesthesiology, British Journal of Anaesthesia, Canadian Journal of Anaesthesia and European Journal of Anaesthesiology, and counted the number of entries and the number of errors in both indexes. The number of errors was expressed as a percentage of the number of entries, and the incidences of errors were compared by chi-square contingency table tests. The overall error rate in both indexes and for both years (1989 and 1991) differed significantly among the five journals (P < 0.001). Many of the individual differences were also significant. British Journal of Anaesthesia had the lowest error rate (0.9%), followed by Anesthesia and Analgesia (2.4%), Anesthesiology (3%), European Journal of Anaesthesiology (2.9%) and Canadian Journal of Anaesthesia (11.4%). The combined index accuracy was improved from 1989 to 1991 for Anesthesia and Analgesia, British Journal of Anaesthesia and Canadian Journal of Anaesthesia, did not change for European Journal of Anaesthesiology and was worse for Anesthesiology
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
Author, publisher and bookseller : a tripartite synergy in Nigerian book industry
No full textThis work is about the roles of Author, Publisher and Bookseller in Book development in
Nigeria. The paper started by delving into the history of Book Publishing in Nigeria after
which it proceeded by defining who an author, a publisher, and a bookseller is and
expatiated on the indispensable roles of these key actors in Nigerian Book Industry and in
the emerging Information Society. Furthermore, the various constraints to book
development were identified while the paper advised on how the Book Industry can be
further promoted in Nigeria. However, the paper concluded and made recommendations
on how the Book sector can help in enhancing scholarship in the country
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