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
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
Adi??o de esterco e pedoturba??o em pastagens do noroeste do Rio Grande do Sul
Get PDFCattle farming is one of the main agricultural activities in the country, playing a
fundamental role in the primary economy, based on pasture food. The inappropriate
use of these areas has been one of the main causes of the decline in the natural fertility
of these soils, with more than half of Brazilian pastures, both native and cultivated,
suffering some type of degradation. Thus, we sought to assess whether the
decomposition of bovine manure improves the biological, physical and chemical
properties of the soil in two pasture areas in the northwest region of Rio Grande do
Sul, in the year 2019. The research used a hypothetical-deductive approach method,
method of statistical procedure, with experimental research in the field, of quantitative
character and technique of intensive direct observation, observation in the field and
laboratory. Two experiments were implemented, one in annual pasture with grazing
and the other in perennial pasture without grazing. The experiments were conducted
in a randomized block design, with 3 treatments and 7 repetitions, totaling 21
experimental units of 2 m?. The treatments used were: (SES) original condition of the
area without the addition of manure; (ES) application of a 5 cm layer of fresh bovine
manure; (ET) application of a 5 cm layer of fresh bovine manure and placing a
protective screen against the entry of soil macrofauna. For biological analysis of the
edaphic macrofauna, the TSBF method (Tropical Soil and Biology Fertility) was used,
the chemical indicators analyzed were pH, P, K, MO, Ca, Mg, H + Al, CTCef, CTCp
and base saturation and the physical indicators evaluated were density, total porosity,
macroporosity, microporosity, degree of compaction and stability of aggregates in
water. The grazing annual grazing area had an average biodegradation of 78% of the
manure, showing improvement in the biological quality of the soil with an increase in
individuals from the group of Coleoptera, Armadilidiidae, Oligochaeta and Mollusca,
chemical improvement through the increase of nutrient contents such as P and K, and
in the soil structure by decreasing the density and degree of compaction, and
increasing the porosity of the soil in layers between 10 and 20 cm in the ES and ET,
however, the layers of 5 to 20 cm showed high rates of degree of soil compaction in
all treatments, verifying that animal trampling raises the degree of soil compaction to
critical levels, decreasing their macroporosity. The biodegradation of 100% of the
manure in the experiment in an area of perennial pasture without grazing, showed in
ES and ET a greater number of individuals from the group of Coleoptera,
Armadilidiidae and Oligochaeta, increased levels of nutrients P, K, Ca and Mg, and pH
levels and base saturation and reduction of H + Al and effective CTC levels, in addition
to an increase in macropores in the 0 to 5 cm layer. It is concluded that bovine manure
improves chemical, physical and biological properties of soils of perennial and annual
pastures, mainly with an increase in beneficial macrofauna, nutrient levels in the soil,
and reduction of the degree of compaction and an increase in the amount of macropores.A bovinocultura ? uma das principais atividades agropecu?rias do pa?s, exercendo
papel fundamental na economia prim?ria, com base alimentar de pastagens. O uso
inadequado dessas ?reas tem sido uma das principais causas do decl?nio na
fertilidade natural desses solos, sendo que mais da metade das pastagens brasileiras,
tanto nativas como cultivadas vem sofrendo algum tipo de degrada??o. Assim,
buscou-se avaliar se a decomposi??o de esterco bovino melhora as propriedades
biol?gicas, f?sicas e qu?micas do solo em duas ?reas de pastagens na regi?o noroeste
do Rio Grande do Sul, no ano 2019. A pesquisa utilizou m?todo de abordagem
hipot?tico-dedutivo, m?todo de procedimento estat?stico, com pesquisa experimental
a campo, de car?ter quantitativo e t?cnica de observa??o direta intensiva, observa??o
a campo e laboratorial. Foram implantados dois experimentos, um em pastagem anual
com pastejo e outro em pastagem perene sem pastejo. Os experimentos foram
conduzidos em delineamento de blocos ao acaso, com 3 tratamentos e 7 repeti??es,
totalizando 21 unidades experimentais de 2 m?. Os tratamentos utilizados foram:
(SES) condi??o original da ?rea sem adi??o de esterco; (ES) aplica??o de camada de
5 cm de esterco bovino fresco; (ET) aplica??o de camada de 5 cm de esterco bovino
fresco e coloca??o de tela de prote??o contra a entrada da macrofauna do solo. Para
an?lise biol?gica da macrofauna ed?fica foi utilizado o m?todo TSBF (Tropical Soil and
Biology Fertility), os indicadores qu?micos analisados foram o pH, P, K, MO, Ca, Mg,
H+Al, CTCef, CTCp e a satura??o de bases e os indicadores f?sicos avaliados foram
densidade, porosidade total, macroporosidade, microporosidade, grau de
compacta??o e estabilidade de agregados em ?gua. A ?rea de pastagem anual com
pastejo teve biodegrada??o m?dia de 78% do esterco, apresentando melhoria na
qualidade biol?gica do solo com aumento de indiv?duos do grupo dos Cole?pteros,
Armadilidiidae, Oligochaeta e Molusca, melhoria qu?mica atrav?s do aumento de
teores de nutrientes como P e K, e na estrutura do solo atrav?s da diminui??o da
densidade e grau de compacta??o, e aumento da porosidade do solo nas camadas
entre 10 e 20 cm nos ES e ET, por?m, as camadas de 5 a 20 cm apresentaram ?ndices
elevados de grau de compacta??o do solo em todos os tratamentos, verificando que
o pisoteio animal eleva o grau de compacta??o dos solos a n?veis cr?ticos, diminuindo
a macroporosidade dos mesmos. A biodegrada??o de 100% do esterco no
experimento em ?rea de pastagem perene sem pastejo, apresentou nos ES e ET
maior quantidade de indiv?duos do grupo dos Cole?pteros, Armadilidiidae e
Oligochaeta, aumento de teores dos nutrientes P, K, Ca e Mg, e dos n?veis de pH e
satura??o de bases e redu??o dos teores de H + Al e CTC efetiva, al?m de apresentar
aumento do macroporos na camada de 0 a 5 cm. Conclui-se que o esterco bovino
melhora propriedades qu?micas, f?sicas e biol?gicas de solos de pastagens perene e
anual, principalmente com aumento da macrofauna ben?fica, teores de nutrientes no
solo, e redu??o do grau de compacta??o e aumento da quantidade de macroporos
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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