1,721,080 research outputs found
Data for Numerical studies of cavitation erosion on an elastic-plastic material caused by shock-induced bubble collapse
No full textDataset supports:
Turangan, C., Ball, G., Jamaluddin, R., & Leighton, T. (2017). Numerical studies of cavitation erosion on an elastic-plastic material caused by shock-induced bubble collapse. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 473(2205)</span
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
Numerical studies of cavitation erosion on an elastic-plastic material caused by shock-induced bubble collapse
No full textWe present a study of shock-induced collapse of single bubbles near/attached to an elastic-plastic solid using the free-Lagrange method (FLM), which forms the latest part of our shock-induced collapse studies. We simulated the collapse of 40 um-radius single bubbles near/attached to a rigid and aluminium walls by a 60 MPa-lithotripter shock for various scenarios based on bubble-wall separations, and the collapse of a 255 µm-radius bubble attached to an aluminium foil with a 65 MPa-lithotripter shock. The coupling of the multi-phases, compressibility, axisymmetric geometry and elastic-plastic material model within a single solver has enabled us to examine the impingement of high speed liquid jets from the shock-induced collapsing bubbles, which imposes an extreme compression in the aluminium that leads to pitting and plastic deformation. For certain scenarios, instead of the high speed jet, a radially inwards flow along the aluminium surface contracts the bubble to produces a ‘mushroom shape’. This work provides methods for quantifying what parameters (e.g. bubble sizes and separations from the solid) might promote or inhibit erosion on solid surfaces
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
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
The interplay of proteomics, genomics and bioinformatics approaches and their potential for cancer diagnosis and prognosis
No full textTo gain a comprehensive understanding of the physiology and pathophysiology of cancer an approach that harmoniously integrates the various omic' platforms is key to cancer biomarker discovery. We have used a combination of high throughput protein pattern detection methods using matrix assisted mass spectrometry time-of-flight (MALDI-TOF) instrumentation and in some studies with protein chip technology to investigate discriminatory protein patterns in melanoma patients in matched serum and plasma and primary tumor cell lines. The cell lines have further been studied using a genomic based method of RT-PCR to give identity to the expressed genes at the time of tumor excision. The gene mutations studied were BRAF, P16, TP53, PTEN, NRAS, INK4A, CTNNB1, and CDK4. Artificial neural networks (ANNs) and descriptive statistics were applied to the combined proteomic and genomic data for the cell lines and protein patterns for matched serum and plasma to identify discriminatory patterns with different clinical disease states in melanoma and to further identify the important biomarkers for the future diagnosis and prognosis of this cancer. Preliminary results for the protein fingerprint patterns and a TP53 gene mutation in metastatic melanoma cell lines showed that the ANNs were capable of predicting with 99% confidence in a blind sample set whether the cell line had a gene mutation or not. For the serum melanoma study the ANNS using proteomic "fingerprint" identified, 9 ions to date. The 9 ion ANNs model classified the data correctly with a median accuracy of 92.3 % (inter-quartile range 89.4 - 94.9 %) for a separate test set of data set aside for validation over 50 random sample cross validation data splits. All ions show statistically significant increase/decrease in intensities. Some peaks could be identified by eye, some canno
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