186,247 research outputs found

    sj-docx-1-dst-10.1177_19322968211059159 – Supplemental material for Using an Online Disturbance Rejection and Anticipation System to Reduce Hyperglycemia in a Fully Closed-Loop Artificial Pancreas System

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    Supplemental material, sj-docx-1-dst-10.1177_19322968211059159 for Using an Online Disturbance Rejection and Anticipation System to Reduce Hyperglycemia in a Fully Closed-Loop Artificial Pancreas System by John P. Corbett, Jose Garcia-Tirado, Patricio Colmegna, Jenny L. Diaz Castaneda and Marc D. Breton in Journal of Diabetes Science and Technology</p

    sj-docx-1-dst-10.1177_19322968231212205 – Supplemental material for Integration of a Safety Module to Prevent Rebound Hypoglycemia in Closed-Loop Artificial Pancreas Systems

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    Supplemental material, sj-docx-1-dst-10.1177_19322968231212205 for Integration of a Safety Module to Prevent Rebound Hypoglycemia in Closed-Loop Artificial Pancreas Systems by María F. Villa-Tamayo, Patricio Colmegna and Marc D. Breton in Journal of Diabetes Science and Technology</p

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

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    We 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 new biocatalyst for production of optically pure aryl epoxides by styrene monooxygenase from Pseudomonas fluorescens ST

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    We developed a biocatalyst by cloning the styrene monooxygenase genes (styA and styB) from Pseudomonas fluorescens ST responsible for the oxidation of styrene to its corresponding epoxide. Recombinant Escherichia coli was able to oxidize different aryl vinyl and aryl ethenyl compounds to their corresponding optically pure epoxides. The results of bioconversion indicate the broad substrate preference of styrene monooxygenase and its potential for the production of several fine chemicals

    Characterization of styrene catabolic pathway in Pseudomonas fluorescens ST

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    Styrene degradation by Pseudomonas fluorescens ST was determined by analysis of recombinant clones generated. Styrene is degraded via the oxidation of the side chain leading to epoxystyrene, which is subsequently isomerized to phenylacetaldehyde and then oxidized to phenylacetic acid. The acid appears to be activated by phenylacetyl-CoA ligase before hydroxylation to form o-hydroxyphenylacetic acid and then homogentisic acid. The catabolic genes are organized in two operons: the upper pathway genes responsible for the oxidation of styrene to phenylacetic acid, and the lower pathway genes involved in the conversion of the acid into compounds which are then further metabolised in the Krebs cycle

    Withdrawn by Author

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    &lt;p&gt;Withdrawn by Author&nbsp;&lt;/p&gt

    Dispelling the Myths Behind First-author Citation Counts

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    We 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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