1,720,961 research outputs found
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
Magnetization Transfer Coefficient zur Diagnostik und Differenzierung nicht tumoröser Erkrankungen der Glandula parotidea
No full textDie Kernspin- oder Magnetresonanztomographie (MTR) ist ein bildgebendes Diagnostikver-fahren, welches auf der Grundlage eines starken Magnetfeldes und hochfrequenter Radiowel-len beruht. Mit ihr lassen sich nichtinvasiv Schichtbilder von jedem Körperteil in jeder Rich-tung aufnehmen. Für das MR- Signal werden in der klinischen Routine meist die Kerne der Wasserstoffatome (Protonen) verwendet. Der hohe Weichteilkontrast, ein großer Vorteil der MRT gegenüber anderen bildgebenden Methoden in der Medizin, beruht darauf, dass Wasser der wesentliche Bestandteil des menschlichen Gewebes ist.
Seit einiger Zeit ist die Kernspintomographie in der Lage einen Magnetization Transfer Coef-ficient (MTC) zu bestimmen. Dieser Technik wird das Potential zur Differenzierung von be-nignen und malignen Tumoren zugeschrieben. In die klinische Routine hat diese Technik bis zum heutigen Tag keinen Eingang gefunden.
Für die großen Speicheldrüsen des Menschen sind bis jetzt keine Normwerte bestimmt wor-den. Des Weiteren gibt es nur eine Arbeit mit kleiner Patientenzahl, die sich mit der Wertig-keit des MTC bei tumorösen Läsionen der Speicheldrüse beschäftigt hat. Zur Wertigkeit der Methode zur Differenzierung generalisierter Erkrankungen mit Affektion der Glandula paro-tidea (z.B. Morbus Sjögren, Sialadenose) oder aber primär entzündlicher Erkrankungen der Drüse liegen bis jetzt in der Literatur nur wenige Erfahrungen vor.
Ziel der Arbeit ist die Bestimmung der Wertigkeit des MTC zur Differenzierung generalisier-ter Erkrankungen mit Affektion oder primär entzündlicher Erkrankung der Glandula
parotidea
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
A study of the effect of brand on profitability in the industry
No full textIn this study brand equity will be evaluated
comparatively as an effective factor between the bank and
insurance firms which are accepted in Tehran stock exchange
from 2009-2015. This research is practical based on its goal,
is descriptive based on the methods that have been done by
correlation and regression. The results show that the impact of
brand equity on profitability in banks is more than insurance
firms. As a conclusion, managers should use promotional
tools such as public relations and media interviews to
introduce their services and try to strengthen their affiliates by
strengthening their brand value.En este estudio, el valor de la marca se evaluará
comparativamente como un factor efectivo entre el banco y las
compañías de seguros que se aceptan en la bolsa de Teherán entre 2009
y 2015. Esta investigación es práctica en función de su objetivo, es
descriptiva en función de los métodos que se han realizado mediante la
correlación y la regresión. Los resultados muestran que el impacto del
valor de la marca en la rentabilidad de los bancos es más que en las
compañías de seguros. Como conclusión, los gerentes deben usar
herramientas de promoción como relaciones públicas y entrevistas con
los medios para presentar sus servicios y tratar de fortalecer a sus
afiliados fortaleciendo el valor de su marc
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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