1,720,975 research outputs found
Evaluation of some technical indicators for New Holland TC 5050 harvester on harvesting losses of rice crop
No full textThis study was conducted in one field of Al-Shamia district in Diwaniyah governorate, Iraq in 2017, for studyingsome technical indicators of New Holland TC 5050 harvester on harvesting losses of rice crop,by using New Holland TC 5050 harvester in various cutting height and threshing cylinder speed. This study was studied two factors: included three cutting heights 10,15 and 25 cm. and three threshing cylinder speeds 450,500 and 550 rpm. The properties which were studied including: percentage of cutting losses, percentage of threshing losses, percentage of separating losses and percentage of cleaning losses. A factorial experiment was carried out in a Randomized Block Design (R.C.B.D) with four replicates. The results showed the following: increasing cutting height from 10 to 15 and 25 cm caused a decrease in the percentage of cuttinglosses, the percentage of threshing losses, the percentage of separating losses and the percentage of cleaning losses. Threshing cylinder speed 450 rpmobtained significant superiority up onthreshing cylinder, speed550rpm achieved lesspercentage of cutting losses and the percentage of threshing losses, while threshing cylinder speed 550 rpmachieved lowerpercentage of separating losses and percentage of cleaning losses. Increasing threshing cylinder speed from 450 to 500 and 550 rpm caused an increasing in the percentage of cutting losses and percentage of threshing losses, and decreasing in the percentage of separating losses and percentage of cleaning losses
Evaluation of some technical indicators for New Holland TC 5050 harvester on harvesting losses of rice crop
No full textThis study was conducted in one field of Al-Shamia district in Diwaniyah governorate, Iraq in 2017, for studyingsome technical indicators of New Holland TC 5050 harvester on harvesting losses of rice crop,by using New Holland TC 5050 harvester in various cutting height and threshing cylinder speed. This study was studied two factors: included three cutting heights 10,15 and 25 cm. and three threshing cylinder speeds 450,500 and 550 rpm. The properties which were studied including: percentage of cutting losses, percentage of threshing losses, percentage of separating losses and percentage of cleaning losses. A factorial experiment was carried out in a Randomized Block Design (R.C.B.D) with four replicates. The results showed the
following: increasing cutting height from 10 to 15 and 25 cm caused a decrease in the percentage of cuttinglosses, the percentage of threshing losses, the percentage of separating losses and the percentage of cleaning losses. Threshing cylinder speed 450 rpmobtained significant superiority up onthreshing cylinder, speed550rpm achieved lesspercentage of cutting losses and the percentage of threshing losses, while threshing cylinder speed 550 rpmachieved lowerpercentage of separating losses and percentage of cleaning losses. Increasing threshing cylinder speed from 450 to 500 and 550 rpm caused an increasing in the percentage of cutting losses and percentage of threshing losses, and decreasing in the percentage of separating losses and percentage of cleaning losses
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
Advances in the development of herpes simplex virus-based gene transfer vectors for the nervous system
No full textHerpes simplex virus (HSV) is an attractive candidate vector for treatment of nervous system disease by gene therapy. Here we review molecular aspects of the natural biology of HSV as it relates to vector design and application. Although gene transfer and transient expression was readily achieved using first generation replication defective HSV vectors, these vectors did not provide for long-term transgene expression, a prerequisite for effective treatment of neurodegenerative disease. The principal impediments to effective use of HSV vectors are residual toxicity of non- replicating vectors and the silencing of transgene expression from persisting latent viral genomes in neurons. Recent advances suggest that vectors deleted for multiple immediate early vital genes provide a solution to both of these problems and thereby provide for the first time insight into methods for the effective design of useful gene vectors for central nervous system applications
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
- …
