186,294 research outputs found
Supplemental Material - Assessing Organizational Capacity to Advance Health Equity: Mixed-Methods Approach at a Local Health Department
No full textSupplemental Material for Assessing Organizational Capacity to Advance Health Equity: Mixed-Methods Approach at a Local Health Department by Shipra Singh, Mounika Polavarapu, Katharine Vallerand, Yashika Bhoge, and Krista McCarthy Noviski in Community Health Equity Research & Policy.</p
Dechlorination of polychlorinated dibenzo-p-dioxins in the watershed of the New York/New Jersey harbor
No full textIn this work, data from the Contamination Assessment and Reduction Project (CARP) was used to investigate the dechlorination of polychlorinated dibenzo-p-dioxins and –furans (PCDD/Fs) in the watershed of the New York/New Jersey Harbor. Preliminary investigations using CARP data suggested that peri dechlorination of PCDD/Fs occurs in sewer systems. However, the peri-lateral dechlorination pathway is more environmentally important since it can remove chlorines in the lateral (2,3,7,8) positions, resulting in products that are considered to be non-toxic. The original CARP data set contains information on concentrations of the 17 2,3,7,8-substituted PCDD/F congeners, so that products of peri-lateral dechlorination were not measured. However, during the analysis of these 17 congeners, the data was generated to measure other non-2,3,7,8-substituted congeners that could be products of peri-lateral dechlorination. In this work, the archived chromatograms were retrieved from the contract laboratory that conducted the original analysis, and a data set was built containing the concentrations of all of the tetra- through octa- chlorinated PCDD/F congeners. This new data set was analyzed to discern further evidence that PCDD/Fs are dechlorinated in sewers via the peri-lateral pathway that can result in complete elimination of toxicity. In the first chapter of this thesis, the concentrations of PCDD/Fs within the data set were examined for trends. Results suggested that dechlorination occurred in landfills. The second chapter utilized Positive Matrix Factorization (PMF) analysis on the same data set in an attempt to provide further evidence that PCDD/Fs are dechlorinated in these systems. When compared to EPA’s published 2,3,7,8-congener patterns, the sources of PCDD/Fs in the Harbor were identified as: bleached chemical wood pulp and paper mills (1% total mass of data set), wood combustion (3%), Kraft black liquid recovery boilers (4%), and diesel trucks (92%). However, when compared to the New York Academy of Sciences Dioxin report, these results were deemed inaccurate because they did not align with the major PCDD/F sources into the Harbor as represented by the literature.M.S.Includes bibliographical referencesby Yashika Dewan
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</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
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
Dr. Edward P. Wimberly, ITC, July 2011
No full textThis video is a conversation with Dr. Edward P. Wimberly. Dr. Wimberly talks about his book, "No Shame in Wesley's Gospel: A Twenty-First Century Pastoral Gospel". Brad Ost, AUC Woodruff Library, is the interviewer
Author Rights and Scholarly Publishing
Get PDFOriginally posted at
http://blog.library.gsu.edu/2014/10/24/author-rights-and-scholarly-publishing/</p
Mapping the Discipline of the Olympic Games An Author-Cocitation Analysis
Get PDFThe authors conducted an author cocitation analysis on prominent authors writing about the Olympics during the 1990s. Author cocitation is an established bibliometric technique that can be used to measure the relative similarities of topics written about by the cited authors. This enables a visual representation of the “intellectual space” of the discipline, in this case the Olympics, to be created for the period under review. So core and peripheral research areas are identified, along with their major contributors. The representation appears as a two-dimensional cluster-enhanced map. Subject expertise was then applied to the results to place labels on the generated clusters of authors and their topics
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