1,720,968 research outputs found
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
STUDY GREEN LIQUID FERTILIZER PRODUCTION FROM HELIANTHUS A.L AND MUNTINGIA C.L PLANT
Get PDFIndonesia has many kinds of plants that can be utilized as an alternative raw materialliquid and solid fertilizer production. several types of plants that can be used as an alternative rawmaterial production of fertilizer is "Plants and Helianthus Muntingia CL A. L. Both types of plantson the leaves / twigs contain various types of ions such as ion Nitrogen (N), Phosphorous (P),Potassium (K), Magnesium (Mg) and calcium (Ca) so that this plant can be used as fertilizer. Inthis study, plant leaf composting process but do not do the extraction and fermentation processesthat run simultaneously. Solvent extraction process carried out with water, acid and sodiumphosphate hipophosphate with certain concentrations, whereas the process of fermentationwithout addition of microorganisms, known as "Self Fermentation".Extraction and fermentationprocess can accelerate the acquisition of fertilizers and facilitate the transport of ions inplants. The purpose of this study is to examine an alternative type of raw material production offertilizer, type and concentration of solvent, extraction time and fermentation, and leaf weightratio and the best solvent and the quality of manure produced. From the survey results revealedboth types of plants can be utilized as raw material for fertilizer, the best type of solvent with theconcentration of sodium hipophospahte 0.75%, extraction time and 50 days of fermentation andquality of the resulting liquid fertilizer for plants Plants Muntingia CL: ion N: 0 , 29%, PO4:0.37%, K: 0.55%, Mg: 0.11% and Ca: 0.025%, while for the plant Helianthus A. L ions N: 0.36%,PO4: 0.545%, K: 0.79%, Mg: 0.075% and Ca: 0.028% and on applications to rice plants knownto both types of green liquid fertilizer can increase the production of grain that is a liquidfertilizer Plants of Helianthus AL of 41.3% and Plants Muntingia CL by 29.9% compared with theuse of chemical fertilizers (urea, SP-36 and KCl), need for green manure liquid 1 liter per 100 m2of land.Key words: Muntingia CL, Helianthus AL, Fertilizer, Extraction and Fermentation
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
ISOLATION STUDY OF EFFICIENT α - CELLULOSE FROM WASTE PLANT STEM MANIHOT ESCULENTA CRANTZ
Get PDFWaste Manihot esculenta Crantz stems of plants is one of the waste has a high cellulose content. However, current waste plant Manihot esculenta Crantz stems only become organic waste that has not been fully utilized. The study is expected to utilize waste Manihot esculenta Crantz plant stems to produce α-cellulose can be used for paper and solve the problem of the environment especially forests. Waste Manihot esculenta Crantz plant stems as a raw material containing fiber 65.38%, 29.01% leather waste, waste cambium levels of 5.61% and 56.82% α-cellulose. Stages of research to produce α-cellulose include prehidrolisis stage, the stage of delignification, bleaching stages, and analysis of α-cellulose. At this stage delignification used NaOH, Na2SO3, Na2SO4 with varying concentrations of 5, 10, 15, 20, 25% by weight as degrading lignin which is then followed by bleaching stage using H2O2 2% and 5% NaOCl to get a pure α-cellulose. The best results with α-cellulose content of 90.41% in the delignification process Na2SO3 with 20% using 2% H2O2 bleaching. Key words: Waste Plant Manihot esculenta Crantz Trunk, delignification, bleaching, α-cellulos
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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