1,721,033 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Low-Power Digital Gates in ERSFQ and nSQUID Technology
No full textWe designed and tested low-power digital gates based
on the energy-efficient rapid single flux quantum (ERSFQ) and
on the reversible nSQUID logic. The ERSFQ circuit consists of a
series of 13 toggle flip-flops (TFFs), where the bias resistors are
replaced by inductors which generate no energy dissipation in the
static mode, resulting in a power consumption orders of magnitude
below that of traditional RSFQ circuits during operation.
The ERSFQ circuits were fabricated with HYPRES’ standard
4.5-kA/cm2 process and tested up to 20 GHz. The RF input level
was about −25 dBm 50 Ω matched, and the output level was
400 μVpp. The nSQUID ring with “NOT” gates was fabricated
with HYPRES’ standard 1-kA/cm2 process. The “0” and “1”
input logic signals were realized injecting ±5 mA of current in
a superconductive coil, obtaining 6 μVpp of amplitude as output
signal. The test was performed at low frequency in order to verify
the functionality and the ultralow power consumption
Variations on the Author
Full text link“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
Full text linkWe 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
A CMOS front-end for SiPM devices aimed to TOF applications with adjustable threshold and high dynamical range
No full textIn recent works we presented the results of the characterization and the study of performance of several
Silicon Photomultipliers delivered from MEPHI (Moscow Engineering and Physics Institute) and we
proposed an electrical model of the SiPM to be used in analog simulations for the VLSI design of
the pilot chip with 0:35 mm technology produced. The results of the simulations was also presented.
In this work we present the results of several test performed on the SiPM connected to the pilot chip.
We also describe the prototype board with a micro-controller designed to adjust the parameters of the
chip and to provide an adjustable and temperature controlled power supply to the SiPM. The results of
the tests obtained allow us to refine the circuits design for the next chip. This chip has been developed
inside the ALTCRISS and KLOE collaboratio
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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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