1,720,967 research outputs found
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
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
Polyphenol Content and Enhancing Plant resistance of Lowland Arabica Coffee
No full textThe production of arabica coffee in Indonesia is still low because of leaf rust disease
suppression caused by Hemileia vastatrix. Basically, it can produce well in the overlapping zone
(1000-1500 masl). This potential can be used as basic for intensifying arabica coffee cultivation to
the lowland. For anticipation steps to reduce the spread of leaf rust can be done by increasing the
production of polyphenol as plant resistance. The addition of mineral element such as silica, boron,
iodine, calcium, and potassium can stimulate the synthesis of plant polyphenol. In this research, five
minerals above were tested into 7 treatment with single factor RCBD, that is without additional of
the mineral element, 150 mg L-1-1 Si, 3000 mg L-1 B, 3000 mg L-1 Ca, 20.000 mg L-1K, 300 mg L I, and the combination/mix of five mineral elements. The laboratory analysis shows that calcium able
to produce the highest polyphenol, but it is not a real difference with silica. The polyphenol that
synthesized by Si, I, and K was able to reduce the leaf rust incidence until 78,13%, while Ca can
reduce the incidence up to 71,88%
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
Role of Mineral Elements to Induce the Resistance of Arabica Coffee Against Rust Disease at Lowland Area
No full textLowland arabica coffee can be affected by leaf rust and its decrease the coffee production up to
80%. The resistance level of the plant can be determined by the content of cellulose, lignin, calcium pectate,
and polyphenols in leaf tissue. Many publications reported that the mineral element could increase the content
of the metabolites. This study aimed to determine the effect of Si, B, I, Ca, and K on the incidence of leaf rust
attack. The experiment was carried out at 400 m a.s.l. in 2018. The experimental subjects were KT variety,
which was six years old. The experiment used a randomized block design with seven treatments. The results
showed that there were 1) decrease the number of leaves affected by rust between first and second
observation, and 2) compared to controls, all treatments has decreased the incidence of attacks leaf rust
disease. Conclusion: There is a tendency of differences in the incidence rate of attack of leaf rust disease in
each treatment. Control plants showed the highest incidence rate of 1.25%, while the lowest incidence was
affected by Silica, iodine, and potassium, which were 0.63%. The treatment of silica and iodine was able to
reduce the highest number of colonies Leaf Rust
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
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
- …
