1,721,792 research outputs found
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
ANTIFUNGAL ACTIVITY OF DRYOPTERIS NIGROPALEACEA PLANT POWDER AGAINST FUSARIUM OXYSPORUM AND ITS EFFECT ON MORPHOLOGICAL AND BIOCHEMICAL ATTRIBUTES OF TOMATO UNDER POT CONDITIONS
No full textFungal pathogens in crops are being controlled by using synthetic fungicides, but all these fungicides have adverse effects. Herein, the antifungal activity of Dryopteris nigropaleacea (Dn.) and its allelopathy was investigated first time by soil amendment in pots against Fusarium oxysporum f. sp. lycopersici (Fol) in terms of morpho-biochemical attributes at conidial densities of Fol 1, 2 and 3 (1×107, 2×107, and 3×107 CFU/mL). Morphological, molecular, and phylogenetic analysis of fungal culture isolate (FI 3005) confirmed that our isolate resembled Fol with 98% similarity index with MW497420 F. oxysporum. High concentrations of plant powder of D. nigropaleacea were found to be inhibitory in nature. Incorporation of Dn 1 concentration (0.025%) of D. nigropaleacea was found to be the most feasible concentration as it resulted in an increase in morphological and biochemical parameters of tomato plants by decreasing the disease incidence (DI) and disease severity (DS) by 60 and 65.2%, respectively, and by improving antioxidants like superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT). Area under disease progress curve (AUDPC) was also reduced by 50% for both DI and DS in Dn 1 treated plants, when compared with Fol 3, after 80 days of inoculation
Soil amendment with Chenopodium album mitigated the deleterious effects of Fusarium wilt in chilies by modulating the biochemical and physiological attributes
No full textThe use of synthetic fungicides to control Fusarium wilt disease in chili (Capsicum annuum L.) caused by Fusarium oxysporum f. sp. capsici (Foc) has detrimental effects, indicating the need for nature friendly alternatives. So, in the present study, antifungal activity of Chenopodium album L. was investigated against the Fusarium wilt of chilies under pot conditions, employing 2 concentrations of C. album and Foc. The treatments were also included to investigate the individual effects of dead Foc (DFoc) as well as C. album to evaluate their effects on the morphological, biochemical and physiological attributes of chili plants. One percent of C. album concentration exhibited positive allelopathy, thereby significantly controlled the wilt disease in chili plants, leading to increases in plant height, dry biomass, chlorophyll a (Chl a), chlorophyll b (Chl b), and carotenoid content by 20, 13, 43, 35, and 8%, respectively, as compared to Foc1. Additionally, the C. album amendment spiked the activities of antioxidants, such as superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT), by 13, 20, and 26%, respectively, and significantly enhanced the photosynthetic rate (Pn), transpiration rate (E), stomatal conductance (gs), and intercellular CO2 (Ci) by 20, 29, 20, and 4%, respectively, in comparison to chili plants inoculated with Foc1
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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