1,720,979 research outputs found
Riley, Ronald L, 215763
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/413387Surname: RILEY. Given Name(s) or Initials: RONALD L. Military Service Number or Last Known Location: 215763. Missing, Wounded and Prisoner of War Enquiry Card Index Number: V-928.232097
Item: [2016.0049.45648] "Riley, Ronald L, 215763
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Full text linkWe 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
Altered Expression of Genes and microRNA Modulators of Sphingolipid Metabolism and Gdf1/Nodal Signaling in Fumonisin and FTY720-treated Exencephalic Embryos and Placentas
No full textFumonisin B1 (FB1) is a mycotoxin produced by a common fungal contaminant of corn. Gestational exposure to FB1- contaminated food has been associated with increased risk for neural tube defects (NTDs) in populations that rely heavily on corn or maize-based foods as a dietary staple. In animal models, fumonisin administration to pregnant LM/Bc mice (20 mg/kg ip on E7.5 and E8.5) produces cranial neural tube defects in 79% of exposed embryos, while the same treatment in SWV mice results in few exencephalic embryos, but a significant increase in the number of resorptions. FB1 is structurally similar to a sphingoid base, and inhibits the enzyme ceramide synthase in de novo sphingolipid biosynthesis. Fumonisin inhibition of ceramide synthases (Lass1-6) results in increased accumulation of sphinganine. Sphinganine is phosphorylated by sphingosine kinase to form the bioactive lipid sphinganine-1-phosphate (Sa1P). Our LC-ESI-MS results demonstrate elevated levels of Sa1P in maternal and embryonic tissues exposed to FB1. Sa1P functions as a ligand for a family of five G protein-coupled ‘S1P’ receptors. S1P receptors are expressed in the cranial neural folds during neural tube closure, and we hypothesize that elevated Sa1P and prolonged activation of S1P receptors may play a role in FB1-induced NTDs. FTY720 is a sphingoid base analog that recently received FDA approval for use as an immunosuppressant drug (Gilenya®) to treat multiple sclerosis. Similar to sphinganine, FTY720 is phosphorylated by the enzyme sphingosine kinase to form FTY720-P, which functions as a ligand for 4 of the 5 S1P receptors. FTY720 administered to pregnant LM/Bc and SWV mice (10mg/kg po on E6.5-E8.5) results in cranial NTDs in both strains. LC-ESI-MS analysis demonstrates elevated levels of FTY720-P in maternal and embryonic tissues (blood, kidney, liver, placenta, and embryo). Several reports provide evidence of cross-talk between S1P receptor and TGFβ receptor-mediated signaling pathways. Three different models have been proposed, including: (1) TGFβ transactivation of sphingosine kinase; (2) the formation of stable S1P receptor - TGFβrII complexes; and (3) S1P receptor transactivation of TGFβ receptors. Canonical TGFβ signaling involves heterodimerization of type I and type II TGFβ receptors, and phosphorylation of Smad2 or Smad3. S1P and FTY720-P have been shown to induce Smad2/3 phosphorylation and collagen production in different cell types in a manner that appears to involve the S1P2 and/or S1P3 receptor. There is also evidence that S1P and Sa1P may have opposing roles on TGFβ/Smad signaling. Differential expression of genes in the TGFβ signaling pathway were examined in E9.5 control, FB1-treated, and FTY720-treated placentas and embryos using SABiosciences pathway focused RT2 Profiler™ PCR arrays. Strain and/or treatment-related differences in expression of Gdf1, Lefty, Cripto, ALK5, Smad3, and Col3a1 were observed. Lass1 is the predominant ceramide synthase isoform in neural tissue, and the Lass1 transcript has an unusual bicistronic structure containing Gdf1 (growth differentiation factor 1). Gdf1 and Nodal interact to establish left-right asymmetry during gastrulation, and signal through activin receptors to converge on the TGFβ-Smad signaling pathway during forebrain development. Inactivation of the Gdf1 portion of the Lass1-Gdf1 gene leads to increased expression of the remaining part of the transcript (Lass1), suggesting a unique feedback mechanism. We hypothesized that Gdf1 inhibition of Lass1 and crosstalk between the sphingolipid and TGFβ signaling pathways may involve microRNAs. The expression of specific miRNAs with gene targets in both the sphingolipid and TGFβ signaling pathways are currently being analyzed in E9.5 control and FB1-treated LMBc and SWV embryos, and in Gdf1 wildtype, heterozygote, and knockout embryos using SABiosciences custom RT2 miRNA PCR arrays
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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