1,721,163 research outputs found
MT&D recordings 2020 PW
No full textRecordings of Peter Wallace's MT&D lectures (Live) from Oct 2020.
Unedited live lectures, pauses, fluffs, questions, digressions etc
MT&D practical pack - unboxing video
No full textDescribes contents of the practical pack for MT&D thermistor exercise
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
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
Cloning characterization and expression of a novel metallothionein gene (mt-d) from triticum durum
Get PDFTwo different metallothionein genes, labelled as mt-d and mt-a were identified in wheat (Triticum durum and Triticum aestivum) genomic DNA sequences were characterized. mt-d and mta, were found to contain 416 and 399 nucleotides, respectively. Nucleic acid sequence alignment showed 95 % similarity between the two. Sequencing results showed that the difference resulted from two extra TTTTTA repeats in the intron regions. cDNAs encoding mt-genes were identifed by RT-PCR. Gene alignment algorithms strongly suggested that both of these cDNAs (mt-a and mt-d) encoded an open reading frame of 75 amino acids with two cysteine-rich domains featuring Cys-XCys motifs at the amino- and carboxy termininus. The deduced amino acid sequences of mt-a and mt-d genes show striking similarity to the MT-like proteins described within the Class II as Type 1 MTs and showed 100 % similarity with each other as deduced from cDNA sequencing results. These results indicate that mt-d from T.durum forms a “novel type 1” MT. For further studies of mt-d expression, localization of the durum metallothionein protein (dMT) and its interactions with other proteins mt-d gene was inserted into the 5’ MCS of pGFPuv vector. Verification was based on sequence data and restriction enzyme analysis. However, expression could not be validated by neither by visual detection of GFP expression nor by SDS-PAGE analysis. A more detailed sequence analysis indicated that the problem was due to a point mutation within the coding sequence of the GFPuv, resulting in a stop codon and premature termination of the fusion protein. Results presented here show the presence of metallothionein gene in the wheat Triticum durum. Although our attempts to express the gene as a fusion protein together with GFP to facilitate its localization in different systems was not successful it will be important in future studies to pursue this goal and achieve expression of labelled protein in plant systems to gain insights into its exact function in plants
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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