1,721,020 research outputs found
Environmental impacts and sustainability of irrigation schemes in Northern Ghana: A survey for Golinga and Botanga communities
No full textMost farmers in sub-Saharan Africa live in areas with relatively abundant water resources. The availability of these water resources, however, is extremely seasonal because of the patterns of the annual rain season(s) and the increasing effects of climate change all over the world. A survey was conducted at Golinga and Botanga irrigation schemes in Northern Ghana where 200 respondents were interviewed. The objectives of this study include: (i) to assess the management and sustainability of irrigation projects, (ii) to find out the impact of the irrigation projects on rural communities' development, (iii) to find out the challenges that hinders farmers from effectively using irrigation water from the perspective of farmers and to find the possible solutions to the challenges.38 and 40% of respondents from Golinga and Botanga irrigation schemes respectively agreed that cropping areas have moderately expanded due to the presence of irrigation scheme however, 52 and 39% of respondents from both schemes respectively indicated that the presence of the irrigation scheme to them has little impact in helping farmers expand their cropping areas. There was also moderate increase in crop yields in both communities due to the constant water supply to farmers obtained from irrigation projects.The study shows that the major challenge that hinders farmers from using irrigation water is the high cost of renting irrigable land for farming in the irrigation schemes indicated by a response of 47 and 64% amongst farmers in Botanga and Golinga irrigation schemes respectively. The study suggests that the need for relevant stakeholders to; revise the cost of renting irrigable lands, acquire and adopt the use of simple and affordable technologies (machines), implement reforms and policies to reduce land consolidation and fragmentation, organize and mobilize farmers in farmer cooperatives to promote collective marketing and organize capacity building sessions for farmers regarding the project sustainability
Proximate components, minerals, amino acids and some anti-nutrients in processed false yam seed meals: Potential benefits for poultry nutrition
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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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