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Autocrine/paracrine stimulation of purinergic receptors in osteoblasts:Contribution of vesicular ATP release.
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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
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Be Our Guest: 129Xe Detection in Macrocycles and Oriented Environments
Get PDFNuclear Magnetic Resonance (NMR) is an extrememly powerful technique for determin- ing chemical structure, which can look in opaque samples. Using 129Xe as our detected nucleus we can synthesize molecualar cages that interact with their chemical environment or molecular target, which is observed through the chemical shift of the xenon in the molecular cage. The use of spin exchange optical pumping (SEOP) the pool of xenon can be hy- perpolarized to give signal enhancement that makes it on par with proton NMR techniques. Further using chemical exchnge saturation transfer (CEST) we can use the exchange of xenon in and out of the molecualr cage to detect concentrations in the nanomolar range. In chapter 3 we will look at a cryptophane-A based sensor and how the chemical shift changes when the cage is chelated to different metal ions. In chapter 4 we looked at using a relaxation based detection method for cryptophane sensors showing a decrease in relaxation time when bound to the protein Avidin. In chapter 5 we look at cucurbituril based xenon detection with a base activated sensor using a rotaxane backbone. In chapter 6 we further develop the rotaxane to include a peptide sequence recognizable by the enzyme MMP2. In chapter 7 we explore a new device that allows for xenon to dissolve directly into ordered media without disturbing the local structure, and in chapter 8 we show preliminary results and discuss the future of xenon based sensors
Altered intracellular redox status in gaucher disease fibroblasts and impairment of adaptive response against oxidative stress
No full textDispelling 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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