1,720,954 research outputs found
Central and Peripheral Analgesic Activities of Aqueous Extract of Centella Asiatica (AECA) Leaves in Rats and Mice
Get PDFThe demand of herbal based medicines are increasing all over the world and the focus on plant research has increased. Centella asiatica (CA) is a medicinal herb used in traditional medicine as remedy for a variety of diseases. It is widely used in Ayurvedic medicines. The present study evaluated the Analgesic Activity of Aqueous Extract of the leaves of Centella asiatica (AECA). Acute oral toxicity test was performed according to Organization for Economic Cooperation and Development, 2008 (OECD) guidelines. The tail flick method and glacial acetic acid-induced writhing tests were used to study the central and peripheral analgesic activities of AECA, respectively. AECA (200mg/kg) produced significant analgesia in both central and peripheral mechanisms compared to the control. The maximal analgesic effect was observed after 90 minutes of drug administration in the tail-flick method. In the glacial acetic acid-induced writhing test, AECA (200 mg/kg, p.o) produced a significant decrease (71.07%) in the number of writhes (p<0.01) when compared to the control. Therefore, CA can be a very promising herbal-based medicine for treatment of various painful conditions. Further investigations are needed to determine the precise mechanism and site of action of AECA
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
Antihyperlipidemic and Antioxidant Activities of Ethanolic Extract of Paederia foetida Leaves (EEPFL) in Albino Rats
Get PDFThe present study was designed to evaluate the antihyperlipidemic and antioxidant activities of leaves of Paederia foetida (EEPFL). The ethanolic extract was obtained by infusion method, and acute oral toxicity tests were performed according to Organization for Economic Cooperation and Development, 2006 (OECD) guidelines. Hyperlipidemia was induced by feeding the rats with a high-fat diet consisting of coconut oil and vanaspati ghee in a ratio of 2:3 v/v at a dose of 10 ml/kg body weight. The extract was given at a dose of 500mg/kg body weight. Total cholesterol, triglycerides, high-density lipoprotein (HDL), and low-density lipoprotein (LDL) cholesterol were measured for antihyperlipidemic activity. For antioxidant activity, Malondialdehyde (MDA), Catalase (CAT), and Superoxide Dismutase (SOD) were measured using standard methods. The extract showed a significant decrease in total cholesterol, triglycerides, LDL, and MDA in the blood. On the other hand, HDL, CAT, and SOD increased significantly. The study demonstrated that the ethanolic extract of leaves of Paederia foetida decreased blood lipid levels and lipid peroxidation. These findings suggest that the EEPFL may have potential therapeutic applications in the treatment of hyperlipidemia and oxidative stress-related diseases
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
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