1,720,963 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
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
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
EVALUATION OF ANTIOXIDANT ACTIVITY OF RAJATA BHASMA & RAJATA YOGA
Get PDFChange in life style has resulted in the increased production of free radicals in the body which not only raise the oxidative stress but also plays an important role in the immune system dysfunction. Now a day, human body is continuously exposed to different types of agents that result in production of reactive species called as ‘free radicals’. Diabetes is a group of metabolic diseases characterized by high levels of blood sugar (hyperglycemia). Many evidences from experiments have proved that free radicals and oxidative stress play a major role in complications of Diabetes mellitus like coronary heart disease, Neuropathy, Nephropathy, Retinopathy and stroke. In Ayurveda, the syndrome Diabetes mellitus has been covered under the broad heading of Prameha. Rajata Yoga is mentioned in Rasa Tarangini and indicated in all types of Prameha. Rajata bhasma, Twak churna, Ela churna and Patra Churna are the main ingredients of Rajata Yoga. The aim of present study is to evaluate the in vitro anti oxidant activity of Rajata bhasma & Rajata Yoga. The method followed to evaluate the anti oxidant activity is 1, 1- diphenyl 2- picrrylhydrazyl (DPPH) radical scavenging assay has been used in the determination of In- vitro antioxidant activity.Results: Significant Inhibition percentage of Rajata bhasma & Rajata Yoga was seen in increasing order of percentage when sample concentration (100µl, 200µl, 300µl, 400µl, 500µl) was increased. Rajata bhasma showed 69.86% of inhibition and Rajata Yoga showed 80.10% of inhibition in 500 µl sample concentrations respectively
PHARMACEUTICAL STANDARDIZATION OF RAJATA YOGA
Get PDFRasa Shastra is a branch of Ayurveda which deals with the processing of minerals and metals having therapeutic importance. Rajata comes under the group of metals having high therapeutic values. Minerals and metals are mostly used in the form of bhasma. There is no specific anupana mentioned for Rajata, it depends upon dosha and disease. Rajata bhasma when given with proper Anupana is indicated in all types of diseases. Rajata Yoga is one such formulation mentioned in Rasa Tarangini, indicated in Prameha. Rajata bhasma, Twak churna, Ela churna and Patra churna are the main ingredients. The present study has been planned to standardize the method of preparation of a Herbo-mineral formulation i.e., Rajata Yoga. Samanya Shodhana and Visesha Shodhana procedures were adopted for Rajata patra (50g). After Visesha Shodhana, 48g of obtained coarse Rajata patra were subjected to Marana with equal quantity of Kajjali (48g) and sufficient quantity of Kumari Swarasa as bhavana dravya. Totally 25 putas were given to attain Rajata bhasma (90g) which passed all bhasma lakshanas as mentioned in our classics. Rajata bhasma (45g) was mixed with Trijataka churna (Twak churna-300g; Ela churna -300g and Patra churna – 300g) to form homogenous 945g of Rajata Yoga. Thus it can be concluded that Supaka i.e. neither less nor more heat is desirable and is essential for making a drug safe and efficacious
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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