1,720,956 research outputs found
A workflow based approach for knowledge grid application
No full textAn expanding area of study regards the development of computing platforms able to provide easy online access to geographically distributed data collections with the aim of producing knowledge synthesis from that data. Computational grid technology can form a computing infrastructure which can assist in providing a platform for distributed computing. In this paper is presented a case study to propose a Knowledge-Grid Workflow Management System as a middleware solution to develop a Knowledge Grid applicatio
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
Clinico-pathological correlation and prognostic significance of nuclear p53 protein in colorectal cancer
No full textOverexpression of p53 protein was studied in neoplastic specimens of 150 patients registered for colorectal adenocarcinoma in the Health Care District 16 of Modena, Italy, from 1984 to 1986, We selected Dukes' stage B (92) and C (58) patients whose survival and recurrence rates are not easily predictable, with the purpose of defining subgroups of patients at high risk of recurrence, Monoclonal antibody PAb 1801 was used on formalin-fixed, paraffin embedded specimens, Nuclear staining was assessed to divide tumours into three groups: a) negative, b) low expressors, c) high expressors, Histomorphological variables of tumours, major clinical features of the patients and 5-year specific survival, were evaluated and related to p53 status. p53 was found in 71 out of 150 cases (47.3%); 50 tumours were high and 21 low expressors, No correlation was found between p53 overexpression and clinico-pathological variables. No difference in survival was found between patients with p53 positive and negative tunours in the entire series or within Dukes' stage B and C patients, However, the subgroup of patients with stage C rectal cancer seemed to have a better prognosis if the tumour was p53 negative (of borderline significance, p=0.15), The same results were obtained by grouping low expressor tunours alternatively with negative or high expressors. We conclude that p53 nuclear overexpression does not seem to influence the prognosis of Dukes' stage B or C colorectal cancer patients
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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