1,720,953 research outputs found
Efeito de Cercospora kikuchii em sementes de soja com tratamentos biol?gicos, fitorregulador e qu?mico
Full text linkThe use of quality seeds is one of the key factors for the success of soybean (Glycine max (L.)
Merr) cultivation, although there are problems with contamination with pathogens that have
the potential to cause diseases in plants, such as purple spot. The best results in controlling
this pathogen are achieved via seed treatment. Therefore, the objective was to evaluate the
physiological quality of soybean seeds and the development of seedlings and plants using two
isolates of Trichoderma harzianum, a phytoregulator and a fungicide. The experiment was
carried out in two stages, the first consisted of a completely randomized design (DIC) with a
3x5 bifactorial arrangement, with four replications, the first factor was seeds with purple spot
symptoms, seeds without symptoms and artificially inoculated, the second factor was seed
treatments with the products Trichodermil? (Trichoderma harzianum strain ESALQ-1306),
Green Control?
(Trichoderma harzianum strain SIMBI T5), Stimulate? (Cinetina+GA3+AIB), Fungicide (Vitavax? Thiram) and control with water. The variables analyzed were: germination speed index (IVG), germination, length and dry mass of the root system and aerial part of the seedlings. The second stage consisted of evaluating the latent infection of the disease, with the factors being seed types and seed treatments the same as in the previous trial, in this case, with five replications. For this, the seeds were sown in plastic cups placed on a shelf with UV light until they reached the V2 stage, in a controlled
environment with air conditioning at 25?C. After this period, a cut was made at the neck of the plants to separate the root system and aerial part, which was placed in gerbox boxes in BOD and the aerial and root parts were dried in an oven. The variables analyzed were: observation of latent infection in the plant neck and the dry mass of the root and aerial system. The data were subjected to analysis of variance and the means were compared using the Tukey test at 5% probability using the SISVAR software. It was possible to conclude that seeds with natural symptoms of spot on the seed coat did not have any impairment in their development and stood out in relation to seeds without symptoms of the disease in the variables analyzed, on the other hand, artificially inoculated seeds were the most affected. The fungus C. kikuchii did not harm germination, except in artificially inoculated seeds.
Biocontrol with T. harzianum and the phytoregulator did not promote a significant increase in the length and dry mass of seedling and plants in relation to the control. Regarding latent infection, there was colonization of the root by T. harzianum, however, the treatments did not inhibit the development of C. kikuchii.A utiliza??o de sementes de qualidade ? um dos fatores chave para o sucesso da cultura da soja (Glycine max (L.) Merr), apesar de existirem problemas de contamina??o com pat?genos que tem potencial de causar doen?as em plantas, como a Mancha p?rpura. Os melhores resultados com o controle desse pat?geno s?o alcan?ados via tratamento de sementes. Diante disso, objetivou-se avaliar a qualidade fisiol?gica de sementes de soja e o desenvolvimento das pl?ntulas e plantas utilizando dois isolados de Trichoderma harzianum, um fitorregulador e um fungicida. O experimento foi realizado em duas etapas, a primeira consistiu em delineamento inteiramente casualizado (DIC) com arranjo bifatorial 3x5, com quatro repeti??es, o primeiro fator foram as sementes com sintomas da mancha p?rpura, sementes sem sintomas e inoculadas artificialmente, o segundo fator foram os tratamentos de sementes com os produtos Trichodermil? (Trichoderma harzianum cepa ESALQ-1306), Green Control? (Trichoderma harzianum cepa SIMBI T5), Stimulate? (Cinetina+GA3+AIB), Fungicida (Vitavax? Thiram) e testemunha com ?gua. As vari?veis analisadas foram: ?ndice de velocidade de germina??o (IVG), germina??o, comprimento e massa seca do sistema radicular e da parte a?rea das pl?ntulas. A segunda etapa consistiu na avalia??o da infec??o latente da doen?a, sendo os fatores tipos de sementes e tratamentos de sementes os mesmos que no ensaio anterior, nesse caso, com cinco repeti??es. Para isso, as sementes foram semeadas em copos pl?sticos alocados em prateleira com luz UV at? atingirem o est?gio V2, em ambiente controlado com ar-condicionado a 25?C. Ap?s esse per?odo foi realizado um corte no colo das plantas para separa??o do sistema radicular e parte a?rea, o qual foi colocado em caixas gerbox em BOD e as partes a?rea e radicular secas em estufa. As vari?veis analisadas foram: observa??o da infec??o latente no colo das plantas e a massa seca do sistema radicular e a?reo. Os dados foram submetidos ? an?lise de vari?ncia e as m?dias comparadas pelo teste de Tukey a 5% de probabilidade utilizando o software SISVAR. Foi poss?vel concluir que sementes com sintomas naturais da mancha no tegumento n?o tiveram comprometimento do seu desenvolvimento e se sobressa?ram em rela??o a sementes sem sintomas da doen?a nas vari?veis analisadas, por outro lado, sementes inoculadas artificialmente foram as mais prejudicadas. O fungo C. kikuchii n?o prejudicou a germina??o, exceto de sementes inoculadas artificialmente. O biocontrole com T. harzianum e o fitorregulador n?o promoveram aumento significativo do comprimento e massa seca de pl?ntulas e plantas em rela??o ? testemunha. Sobre a infec??o latente, houve coloniza??o dasra?zes pelo T. harzianum, por?m, os tratamentos n?o inibiram o desenvolvimento de C. kikuchii
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
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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
- …
