1,723,460 research outputs found
[Illinois Central R. R., Engine Drawing Card, Sketch No. 5183]
No full textThis engine drawing card was created for Illinois Central Railroad Company, Class 16 42/68 DE. Section J-16DE. Sketch 5183. Copy Spec. [field left blank]
De historische groei, de huidige positie en de toekomstige rol van de Tweede Kamer als het belangrijkste vertegenwoordigend orgaan in Nederland
Get PDFContains fulltext :
5183.pdf (Publisher’s version ) (Open Access
Multivariable hazard ratios for diabetes complication risk by self-reported oral health (n = 5183).
No full textMultivariable hazard ratios for diabetes complication risk by self-reported oral health (n = 5183).</p
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
An Edge-On Orbit for the Eccentric Long-Period Planet HR 5183 b
Get PDFThe long-period giant planet HR 5183 b has one of the most extreme orbits
among exoplanets known to date, and represents a test for models of their
dynamical evolution. In this work we use Hipparcos-Gaia astrometry to measure
the orbital inclination of this planet for the first time and find
, fully consistent with edge-on. The long orbital
period and high eccentricity of HR 5183 b are supported by our results, with
years and . We confirm that HR 5183 forms
a physically bound binary with HIP 67291 at a projected separation of 15400 AU,
and derive new constraints on the orbit of this pair. We combine these results
to measure the mutual inclination between the planetary and binary orbits; we
observe significant evidence for misalignment, which remains even after
accounting for bias of the prior towards high mutual inclinations. However, our
results are too imprecise to evaluate a recent prediction that the mutual
inclination should reflect the formation history of HR 5183 b. Further
observations, especially the release of the full Gaia astrometric data, will
allow for improved constraints on the planet-binary mutual inclination. of known planets with eccentricities are found in multiple
star systems, a rate that we find to be greater than for the overall planet
population to moderate significance (). This supports the hypothesis
that dynamical interactions with wide stellar companions plays an important
role in the formation of highly eccentric exoplanets.Comment: 16 pages, 8 figures, 6 tables. Published in MNRAS. Significant
revisions compared to version
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
- …
