1,721,118 research outputs found
Review of S. Campagna, G. Garzone, C. Ilie, and E. Rowley-Jolivet (eds.). 2012. Evolving Genres in Web-mediated Communication, Bern: Peter Lang
No full textReview of S. Campagna, G. Garzone, C. Ilie, and E. Rowley-Jolivet (eds.). 2012. Evolving Genres in Web-mediated Communication, Bern: Peter Lan
Effects of Carbonatation Lime Distribution on Silty Clay Loam Soils
No full textCarbonatation lime is a sugar industry by-product obtained during purification of the raw juice after the addition of milk of lime and carbon dioxide and subsequent decanting, fermenting and elimination of the water. The end-product can be used by farmers as it has an alkaline pH and contains a varying percentage of organic matter that makes it suitable for distribution on soils as an amendment or fertilizer.
The aims of this study were to verify the effects of the distribution of increasing rates of carbonatation lime on typical crops and clay-loam soils in the province of Bologna (Italy) and to provide indications on the efficiency of its mechanical distribution by spreader carts commonly used for organic manures from livestock. The research was conducted for four years on three plots, differentiated by the rates of lime distributed over the years and the total amount present at the end of the trials.
The plots were cultivated on the basis of a four-year rotation (wheat, sugarbeet, sorghum, tickbean), using organic farming methods. The work quality and performances of a manure-spreading cart used to distribute the carbonatation lime were evaluated. The influence of the different rates of lime distributed on the soils was evaluated through determination of the penetrometer index and soil moisture content measured at different depths
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
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