1,723,577 research outputs found
FUSARIUM VILT OF COTTON С-6524
Get PDFDuring the years 2014 - 2015, we surveyed for cotton fields in region of Fergana in Uzbekistan wilt. We discovered that new virulent fungal wilt isolates from different geographical regions, which have different soil types and ecologies. Among different cotton varieties, C-6524 showed the least wilt symptoms (28%)
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
[New York, New Haven & Hartford R.R. Co., Engine Drawing Card, Sketch 6524]
No full textThis engine drawing card was created for New York, New Haven, & Hartford Railroad Company, Class 14-52 1/4 F. Section J-14 1/4 F. Copy Sketch 6524. Copy Spec. [field left blank]
The frequency of having at least one close friend with high-risk behaviors in participants' social networks (C = 6524).
No full textThe frequency of having at least one close friend with high-risk behaviors in participants' social networks (C = 6524).</p
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
25 Research Things: engaging academics with social media tools
No full textA growing body of research from around the world has demonstrated that uptake of social media and web 2.0 tools and technologies is not yet embedded within the research community. One important reason for this is that researchers often feel bewildered by the array of technology available to them, and struggle to understand how it could support their professional activities. This poster reports on a recent project, undertaken jointly by the University of Huddersfield and the Research Information Network (RIN), to enable a group of researchers to engage more effectively with social media tools.
’25 Research Things’ is an innovative online learning programme which gives researchers a structured way to engage with selected web 2.0 tools. It is based upon a previous course run at Huddersfield for its library staff, which itself borrowed from ‘Learning 2.0’, developed by Helene Blowers at the Public Library of Charlotte & Mecklenburg County, USA. A number of web 2.0 tools are introduced each week and the ‘thingers’, ranging from 1st year PhD students to professors, are given specific tasks which encourage them to experiment. The first cohort ran from November 2010-January 2011, the second will run from January–March 2011.
The course is run via a WordPress blog, all participants establish and maintain a blog of their own to report on their experiences with each tool. This approach helps to build a supportive community, with participants commenting on each others’ blogs. As a result, they not only receive peer support on the various tasks, but also begin to understand the benefits of being part of an active online social network.
All ‘thingers’ complete a survey before and after the course. The preliminary results of these surveys, along with analysis of the blogs, suggest that researchers have found the course to be useful. For many, it has increased their confidence in using web 2.0 tools, and every participant has found at least one new tool which they will continue to use after completion of the course. Many have also commented on the engaging and stimulating nature of the course, suggesting that the interactivity and structured learning are welcomed by researchers.
This poster will use data from both rounds of the programme to evaluate its success. It will consider the efficacy of the ’25 Research Things’ model as a way of engaging researchers with social media, and will suggest how others could experiment with the project in their own institutions
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
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