1,720,954 research outputs found
Tea as an alternative crop for Mississippi
Get PDFFarmers in Mississippi have begun planting tea (Camellia sinensis) to diversify their crops. Camellia sinensis is an evergreen shrub whose leaves are used to make commonly consumed tea beverages. Tea has the potential to benefit the agricultural industry in Mississippi. While tea has been grown in other countries for centuries, there is little research-based information to guide farmers on growing tea in the United States. For domestic production to become effective, growers need to identify areas to save money to compete with countries with lower input costs. This study showed growers can fertilize at 2 g nitrogen (N) per container, reducing input costs, and produce comparable plants to those receiving higher N rates used in this study. While lowering the amount of N applied to plants in containers is an economical benefit to producers, there is also an environmental benefit to applying less N.This research also examined whether the use of colored shade cloth would increase plant growth and survival rate of newly planted tea. This study indicated in year 1, plants grown under shade treatments had 100% survival rate compared to plants grown without shade which had a survival rate of 46.67%. Shade cloth may be useful for tea producers in Mississippi when irrigation is limited. For tea producers with irrigated fields, the added expense of shade cloth may not be justified. Finally, planting date was evaluated to determine effects on plant growth and survival rate. In all planting dates except 3 April 2017, survival rate was over 70%, suggesting producers can plant tea in late fall and winter in Mississippi. While only in its infancy, the US tea industry has the potential to reduce the amount of imported tea, providing a boost to local economies and potentially reducing the environmental impact from shipping
Saline Irrigation of Five Diverse Landscape Plant Species for the Southeastern United States
Get PDFResearch was conducted to determine salt tolerance of five common landscape species, Illicium parviflorum, Itea virginica ‘Henry’s Garnet’, Muhlenbergia capillaris, Begonia×semperflorens-cultorum and Portulaca oleracea. Two experiments were performed, one with high NaCl concentrations and one with low NaCl concentrations. Plants received daily irrigation of tap water containing one of the following NaCl concentrations: 0 (tap water), 2000, 4000, 6000, 8000, or 10000 ppm (mg•L-1) (high NaCl conc. exp.) or 0 (tap water), 250, 500, or 1000 ppm (mg•L-1) (low NaCl conc. exp.). Illicium parviflorum, M. capillaris, B.×semperflorens-cultorum, and P. oleracea were tolerant of saline irrigation that could be expected from greywater. Itea virginica showed signs of salt stress at the lowest NaCl concentration [250 ppm (mg•L-1)] and should not be irrigated with saline greywater or other saline irrigation sources
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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