1,721,264 research outputs found
FIGURE 8 in Polygonatum tungnathensis (Asparagaceae), a new species from Uttarakhand, Western Himalaya, India
No full textFIGURE 8. Pollen structure. (A, C, E) Polygonatum tungnathensis. (B, D, F) P. verticillatum. (A, B) Larger vs smaller. (C, D) Tricolpate vs monosulcate. (E, F) Colpus extended almost towards the grain end, pollen ornamentation heterobrochate reticulation.Published as part of Singh, Ankit, Singh, Harsh & Nautiyal, Mohan Chandra, 2022, Polygonatum tungnathensis (Asparagaceae), a new species from Uttarakhand, Western Himalaya, India, pp. 163-175 in Phytotaxa 554 (2) on page 172, DOI: 10.11646/phytotaxa.554.2.5, http://zenodo.org/record/682094
Polygonatum Miller 1754
No full textKey to the genus Polygonatum from Western Himalaya 1a. Leaves opposite......................................................................................................................................................... P. graminifolium 1b. Leaves alternate or whorled................................................................................................................................................................2 2a. Stem less than 10 cm; flowers erect..................................................................................................................................... P. hookeri 2b. Stem more than 20 cm, flowers pendulous........................................................................................................................................3 3a. Leaves alternate............................................................................................................................................................. P. multiflorum 3b. Leaves whorled...................................................................................................................................................................................4 4a. Leaf apex curved or coiled, tendril-like........................................................................................................................ P.cirrhifolium 4b. Leaf apex acute, straight, not curved or coiled...................................................................................................................................5 5a. Leaves broad lanceolate; pedicel with bractlets......................................................................................................... P. tungnathensis 5b. Leaves narrowly lanceolate; pedicel without bractlets................................................................................................ P. verticillatumPublished as part of Singh, Ankit, Singh, Harsh & Nautiyal, Mohan Chandra, 2022, Polygonatum tungnathensis (Asparagaceae), a new species from Uttarakhand, Western Himalaya, India, pp. 163-175 in Phytotaxa 554 (2) on page 172, DOI: 10.11646/phytotaxa.554.2.5, http://zenodo.org/record/682094
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
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
Inhibiting Fatty Acid Amide Hydrolase (FAAH) Induces Apoptosis in Breast Cancer Cells
Full text linkBackground: Breast cancer is a highly heterogeneous, aggressive disease that has poor prognosis. Current treatment is present, but research on a therapeutic alternative is ongoing. Endocannabinoids, members of the endocannabinoid system, are naturally produced by cells in our bodies. They are diverse signaling components that have several functions, including regulation of the apoptosis mechanism. Fatty Acid Amide Hydrolase (FAAH) is an integral membrane enzyme that hydrolyzes endocannabinoids, rendering them inactive. Since FAAH is upregulated in cancer cells, FAAH inhibition is predicted to increase the apoptotic rate. Methods: To test the effects of FAAH inhibitors and exogenous endocannabinoids, cells were cultured, probed for FAAH expression using Western blot analysis, treated with FAAH inhibitors, exogenous endocannabinoids, and combinations of both, all in varying doses, and cell viability was measured using MTT assays. Results: High levels of FAAH were observed in two breast cancer cell lines. The greatest change was observed at 50 μm PF-750 treatment, which is the most selective FAAH inhibitor. URB597 combination treatments decreased cell viability in a supra-additive manner. The most significant change was observed at co-treatment levels of 50 μm URB597 and 50 μm AEA, which resulted in a 30% decrease (p<0.001) in cell viability compared to vehicle control. FAAH inhibition was more effective than exogenous endocannabinoid use, and combination treatments of FAAH inhibitors and exogenous endocannabinoids, both at the highest doses, were the most effective.Biomedical Engineering, Department ofHonors Colleg
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