1,720,983 research outputs found
FT-ICR MS Data Analysis Package
No full text<p>'fouriertransform' is a Python package for analyzing Fourier Transform Ion Cyclotron Resonance Mass Spectrometry (FT-ICR MS) data. 'fouriertransform' is especially suited for assigning formulae to raw MS peaks, categorizing formulae into compound classes according to elemental formula, and creating statistical correlations with environmental parameters.</p>
FluvialSeds/isotopylog: Manuscript Submission Release
No full textThis release coincides with the submission of Hemingway and Henkes "A distributed activation energy model for clumped isotope bond reordering in carbonates" to EPS
FluvialSeds/Triple-Oxygen-Isotope-Database: Accepted manuscript version
No full text<p>This release corresponds to the data used in the accepted manuscript of the Treatise on Geochemistry chapter.</p>
FluvialSeds/rampedpyrox: Biogeosciences companion code
No full text<p>This release is the version that accompanies Hemingway et al. (2017) "An inverse method to relate organic carbon reactivity to isotope composition from serial oxidation" Biogeosciences.</p>
FluvialSeds/isotopylog: Updated Manuscript Release
No full textThis version coincides with the release of Hemingway and Henkes (2021) Earth Planet. Sci. Lett., 566, 116962. It includes some practical updates over the previous version:
Ability to set calibration functions as lambda function at any point in the calculations. Previously, geologic history calculations required one of the pre-determined calibrations.
Inclusion of "I-CDES" reference frame as articulated in Bernasoni et al. (2021) Geochem. Geophys. Geosys., 22, e2020GC009588, which should be the "gold standard" for all clumped isotope measurements moving forward.
Inclusion of the Anderson et al. (2021) Geophys. Res. Lett., 48, e2020GL092069 unified temperature calibration (in I-CDES reference frame).
Also fixed minor bugs and nomenclature issues
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
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
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
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