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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
Workflow for: Assessing Acropora cervicornis genotype resistance to elevated ammonium and disease
No full text<p>This repository contains data and analysis scripts for the manuscript:</p>
<h2>Assessing <em>Acropora cervicornis</em> genotype resistance to elevated ammonium and disease</h2>
<h4><strong>Authors:</strong> Ana M. Palacio Castro, Daniele Kroesche, Ian Enochs, Chris Kelble, Ian Smith, Andrew Baker, Stephanie M. Rosales</h4>
<h4><strong>Journal:</strong> <em>Submitted to PlosOne</em> <a href="http://dx.doi.org/XXX">doi:XXX</a></h4>
<h3>Description:</h3>
<p>These repository contains all data and code used to study the impact of elevated ammonium and disease on ten <em>A. cervicornis</em> genotypes</p>
<h3>Contents:</h3>
<h4>1.Tank_conditions:</h4>
<ul>
<li><strong>1.Experimental_conditons.Rmd:</strong> has all the code needed for Figure 1. It sources the data from the <strong>Data</strong> subfolder and saves statistical summaries and plots in the <strong>Outputs</strong> subfolder.</li>
</ul>
<h4>2.Mortality:</h4>
<ul>
<li><strong>1.Mortatily_Acer.Rmd:</strong> has all the code needed for Figure 4 and survivorship analysis. It sources te data from the <strong>Data</strong> subfolder and saves statistical summaries and plots in the <strong>Outputs</strong> subfolder.</li>
</ul>
<h4>3.Growth:</h4>
<ul>
<li>This data and data analysis were not used in the manuscript:**</li>
</ul>
<h4>4.YII:</h4>
<ul>
<li><strong>1.IPAM_ImportFunction.R:</strong> R function to imports the csv raw IPAM data. Yo do not have to do anything with this file, but the function is called by this file below.</li>
<li><strong>2.MergeYIIandID.R:</strong> Applies <strong>1.IPAM_ImportFunction.R</strong> to the raw data in the <strong>IPAM_Raw</strong>, adds the sample metadata in the <strong>ID_AOI.csv</strong> file and creates a long format file with the YII values that is exported to the file <strong>Data/YII_tall.csv</strong></li>
<li><strong>3.YII_Acer_Nut.Rmd:</strong> has all the code needed for Figure 2 and related statistical analisis. It sources the data from the file <strong>Data/YII_tall.csv</strong> and saves statistical summaries and plots in the <strong>Outputs</strong> subfolder.</li>
</ul>
<h4>5.Symbiodiniaceae:</h4>
<ul>
<li><strong>SH_cell_code.Rmd:</strong> has all the code needed for Figure 3. It sources the qPCR data from the <strong>Data</strong> subfolder and the sample metadata from the <strong>Metadata.csv</strong> file. Statistical summaries and plots are saved in the <strong>Outputs</strong> subfolder.</li>
<li><strong>Data:</strong> has all the raw data exported from the qPCR machine.</li>
</ul>
<h4>6.Metadata:</h4>
<ul>
<li>This folder has copies of the metadata files, but are actually not used by any code.</li>
</ul>
<p></br></p>
<h4>Notes</h4>
<ul>
<li>All packages.bib files produce a bibliography of the packages used by each .Rmd</li>
<li>All .html files produce a webpage with code outputs, plots, etc. based on the .Rmd files</li>
</ul>
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Manipulating alkalinity to increase production of Acropora cervicornis outplants in ex-situ nurseries
No full textAs climate change threatens coral reefs globally and mass coral mortality events are becoming more frequent, increasing the scale of coral restoration efforts is crucial. A critical step is the accelerated production of biomass, which is necessary not just for producing large numbers of outplants, but also for increasing efficiency and reducing generation times. Preliminary evidence from aquarists, as well as lab and field studies that have focused on calcification, suggest that enhanced seawater alkalinity increases coral growth rates. To date, however, many questions remain pertaining to the effectiveness on species targeted for restoration, optimal dose rates, and the manner in which growth is altered (e.g., extension vs. density). Here we use a sequential-treatment application robot (STAR-system) and 3D scanning to investigate the effect of elevated alkalinity on total calcification (mg cm⁻² day⁻¹) and linear extension (mm day-1) of the critically endangered Caribbean coral, Acropora cervicornis. Replicate coral fragments (n = 40) were exposed to one of four enriched alkalinity treatments for 33 days using a sodium bicarbonate/sodium carbonate solution. Linear regression revealed that elevated alkalinity had a positive effect on both total calcification (p < 0.0001, slope = 0.2) and linear extension (p <0.05, slope = 0.02) with the average total calcification increasing by 124% and linear extensionby 89% under the highest treatment (~1.8 times ambient seawater alkalinity). These results indicate that using simple and inexpensive methods to artificially elevate alkalinity in land-based grow-out facilities may accelerate coral fragment production and potentially shorten generation times, helping to scale restoration efforts
Manipulating alkalinity to increase production of Acropora cervicornis outplants in ex-situ nurseries
No full textAs climate change threatens coral reefs globally and mass coral mortality events are becoming more frequent, increasing the scale of coral restoration efforts is crucial. A critical step is the accelerated production of biomass, which is necessary not just for producing large numbers of outplants, but also for increasing efficiency and reducing generation times. Preliminary evidence from aquarists, as well as lab and field studies that have focused on calcification, suggest that enhanced seawater alkalinity increases coral growth rates. To date, however, many questions remain pertaining to the effectiveness on species targeted for restoration, optimal dose rates, and the manner in which growth is altered (e.g., extension vs. density). Here we use a sequential-treatment application robot (STAR-system) and 3D scanning to investigate the effect of elevated alkalinity on total calcification (mg cm⁻² day⁻¹) and linear extension (mm day-1) of the critically endangered Caribbean coral, Acropora cervicornis. Replicate coral fragments (n = 40) were exposed to one of four enriched alkalinity treatments for 33 days using a sodium bicarbonate/sodium carbonate solution. Linear regression revealed that elevated alkalinity had a positive effect on both total calcification (p < 0.0001, slope = 0.2) and linear extension (p <0.05, slope = 0.02) with the average total calcification increasing by 124% and linear extensionby 89% under the highest treatment (~1.8 times ambient seawater alkalinity). These results indicate that using simple and inexpensive methods to artificially elevate alkalinity in land-based grow-out facilities may accelerate coral fragment production and potentially shorten generation times, helping to scale restoration efforts
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
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
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