1,720,954 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
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
Erratum to Cercis siliquastrum L., Malus trilobata Schneid and Acer syriacum Boin and Gaill water use as affected by two fertilizer rates [Sci. Hortic. 112 (2007) 99-107] (DOI:10.1016-j.scienta.2006.11.011)
No full text[No abstract available
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
Growth and nutrient partitioning of containerized Malus trilobata Schneid. and Acer syriacum Boiss. and Gaill. under two fertigation regimes
No full textThe native flora of Lebanon is threatened. As part of an ex situ conservation strategy, this study was conducted to determine if Malus trilobata (Schneid.) and Acer syriacum (Boiss. and Gaill.), two native Lebanese trees, were amenable to container production. Therefore, these species' growth and nitrogen, phosphorus, and potassium uptake efficiency and distribution under two fertilizer rates were studied. Malus trilobata seedlings were obtained from seeds collected from two mother trees, whereas Acer syriacum seeds were collected from a single tree. Two-year-old seedlings raised from these seeds were planted in 11-L containers in a 3:1 pine bark:compost substrate. Half the seedlings within each source and species were assigned to either 25 or 100 mg·L-1 N from 21N-3.1P-5.9K water-soluble fertilizer treatments. Seedlings of both Malus trilobata sources grown under 25 mg·L-1 N were taller than those grown at 100 mg·L -1 N. Nitrogen loading occurred in plants of Malus trilobata under the high fertilizer rate, although total plant N, phosphorus, and potassium content was unaffected by fertilizer rate, because larger seedlings had lower nutrient concentrations. There were significant differences in growth among the two Malus trilobata seed sources, but there were no differences in mineral nutrient uptake or nutrient use efficiency. Growth, mineral nutrient uptake, and nutrient use efficiency of Acer syriacum seedlings were unaffected by fertilizer rate. Malus trilobata and Acer syriacum seedlings are amenable to container production. Using container production for these species with subsequent transplanting into managed landscapes might be a viable ex situ conservation method. Further studies are needed.Drunasky Nicholas, 2005, Urban Forestry and Urban Greening, V4, P13; Evans G.C., 1972, QUANTITATIVE ANAL PL; GILLIAM CH, 1980, HORTSCIENCE, V15, P641; GILLIAM CH, 1984, J ENV HORT, V2, P53; Hillier and Sons, 1973, MAN TREES SHRUBS; INGESTAD T, 1979, PHYSIOL PLANTARUM, V45, P149, DOI 10.1111-j.1399-3054.1979.tb01679.x; Jull Laura G., 1994, Journal of Environmental Horticulture, V12, P212; Larimer Jill, 2002, Journal of Environmental Horticulture, V20, P28; Lumis Glen, 2000, Journal of Environmental Horticulture, V18, P13; MALIK V, 1995, CAN J FOREST RES, V25, P1017, DOI 10.1139-x95-110; MOUTERDE P, 1966, IMPRIMERIE CATHOLIQU, V1; MOUTERDE P, 1970, IMPRIMERIE CATHOLIQU, V2; Musselwhite Sheri, 2004, Journal of Environmental Horticulture, V22, P50; STOVEN A, 2004, THESIS OHIO STATE U; Struve Daniel K., 1995, Journal of Environmental Horticulture, V13, P169; Stubbs Hunter L., 1997, Journal of Environmental Horticulture, V15, P80; TISDALE S, 1998, SOIL FERTILITY FERTI; *UNEP, 1996, BIOL DIVERSITY LEBAN, V9; Wright R.D., 1987, HORTIC REV, V9, P75; Xu XJ, 1999, PLANT SOIL, V216, P83, DOI 10.1023-A:1004733714217; Zahreddine HG, 2007, SCI HORTIC-AMSTERDAM, V112, P80, DOI 10.1016-j.scienta.2006.11.013; ZAHREDDINE HG, 2007, LEBANESE SCI J, V8, P21; 1999, PRINCIPAUX ARBES LIB0
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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