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Extract of Ascophyllum nodosum (L.) Le Jolis under different doses in soybean
No full textOs bioativadores são substâncias complexas que promovem o equilíbrio geraldas plantas, favorecendo a expressão do seu potencial genético. Tambémpodem aumentar a resistência a estresses bióticos e abióticos, aumentar afertilidade do solo, promover o crescimento vegetal e aumentar a produtividade.As atividades antrópicas em agrossistemas influenciam na qualidade do solo,assim, a comunidade microbiana é altamente sensível a estas alterações, sendoótimo bioindicadores da qualidade do solo. Substâncias bioativas de algasmarinhas (Ascophyllum nodosum) têm-se mostrado muito benéficos norendimento e qualidade do solo e das culturas. O objetivo do estudo foi avaliar oefeito do extrato A. nodosum na cultura da soja sob diferentes doses. Foramconduzidos ensaios a campo nas safras, 2014/15 (1) e 2015/16 (2), e em casade vegetação em 2016/2017. O delineamento utilizado para os ensaios acampos foram bloco ao acaso constituindo de 4 e 5 tratamentos com 5 e 4repetições respectivamente. No ensaio 1, os tratamentos consistiam de sem (T1)e com aplicação do extrato de A. nodosum 29%, sendo 2,0 mL Kg-1 de sementee em cobertura doses crescentes do extrato de alga 0,5 (T2); 1,0 (T3) e 2,0 L ha-1(T4). No ensaio 2, os tratamentos consistiam de controle sem aplicação doextrato (T1); tratamento de semente com 2,0 mL Kg-1 de semente e emcobertura dose de 1,0 L ha-1 do extrato de algas a 29% (T2); sementes tratadascom 2,0 mL do extrato de A. nodosum 29% Kg-1 de semente e em coberturadoses crescentes do extrato de A. nodosum 9% 1,0 (T3); 2,0 (T4) e 3,0 L ha-1(T5). O terceiro ensaio foi conduzido em casa de vegetação em vasosinteiramente casualisados constituído por 2 tratamentos, sem a aplicação doextrato de alga (T1) e aplicação na semente do extrato de A. nodosum 29%, de2,0 ml Kg-1 de semente e em cobertura 1,0 L ha-1 do extrato de A. nodosum 9%(T2). As aplicações em cobertura foram feitas nas fases R1 e R5, em que a dosepor hectare foi dividida entre as duas aplicações. Foram avaliadas, CarbonoOrgânico Total (COT), Carbono da Biomassa Microbiana (CBMS), RespiraçãoBasal (RBS), Quocientes Metabólico (qCO2) e Microbiano (qMIC) e química derotina, além das avaliações agronômicas das plantas. Os resultados foramsubmetidos à análise de variância, com médias comparadas por teste de Tukey(p<0,05). No ensaio 2014/2015, o T3 apresentou melhores resultados em todosas variáveis avaliadas. No ensaio 2015/2016, apesar os resultados não diferiremestatisticamente em função dos fatores abióticos, o T3 apresentou umatendência de maior produtividade e melhores parâmetros microbiológicos. Já noensaio na estufa, o T2 apresentou aumento significativo no diâmetro do caule eaumento da área foliar demonstrando uma melhor resposta a estresse hídrico.Os tratamentos que receberam a inoculação nas sementes e as aplicaçõesfoliares dos extratos líquidos comerciais da alga Ascophyllum nodosum(Acadian® e/ou Toggle®) mostraram-se eficientes na cultura da soja,incrementando a produtividade em diferentes condições hídricas, sem causarimpacto negativo a comunidade microbiana.Bioactivators are complex substances that promote balance in plants, favoringthe expression of their genetic potential. They can also increase resistance tobiotic and abiotic stresses, increase soil fertility, promote plant growth andincrease productivity. Anthropogenic activities in agrosystems influence soilquality, thus, the microbial community is highly sensitive to these changes, beingexcellent bioindicators of soil quality. Bioactive substances of marine algae(Ascophyllum nodosum) have been shown to be very beneficial in yield andquality of soil and crops. The aim of this study was to evaluate the effect of A.nodosum extract on soybean under different doses. Field trials were conductedon the crops 2014/15 (1) and 2015/16 (2), and in greenhouse in 2016/17. Theexperimental design for the field trials was randomized blocks consisting of 4and 5 treatments with 5 and 4 replicates respectively. In trial 1, treatmentsconsisted of an untreated check (without application -T1) and with applications ofthe extract of A. nodosum 29%, with 2.0 mL Kg-1 of seed and in coveragesprayings at increasing rates of seaweed extract 0.5 (T2); 1.0 (T3) and 2.0 L ha-1(T4). In trial 2, the treatments consisted of an untreated check (T1); Seedtreatment with 2.0 mL Kg-1 of seed and coverage sprayings at rate 1.0 L ha-1 ofseaweed extract 29% (T2); Seeds treated with 2.0 mL of the extract of A.nodosum 29% Kg-1 of seed and coverage spraying at increasing rates of theextract of A. nodosum 9% 1,0 (T3); 2.0 (T4) and 3.0 L ha-1(T5). The thirdexperiment was conducted in a greenhouse in completely randomized flowerpots composed of 2 treatments, untreated check (T1) and seed application of theextract of A. nodosum 29% of 2.0 ml Kg-1 of seed and in coverage spraying atrate 1.0 L ha-1 of the extract of A. nodosum 9% (T2). Coverage applications wereperformed at phenological stadiums, R1 and R5, where the doses per hectarewere divided between the two applications. Total Organic Carbon (TOC),Microbial Biomass Carbon (CBMS), Basal Breath (RBS), Metabolic Quotients(qCO2) and Microbial (qMIC) and routine chemical analisys were evaluated, aswell as agronomic evaluations of plants. The results were submitted to analysisof variance, with averages compared by Tukey test (p <0.05). In the 2014/2015trial, T3 showed better results in all evaluated variables. In the 2015/2016 trial,although the results did not differ statistically ain function of abiotic factors, T3showed a trendency of higher productivity and better microbiological parameters.In the greenhouse trial, T2 presented a significant increase in the diameter andincrease of the leaf area demonstrating a better response to water stress. Thetreatments that received inoculation in the seed and the foliar applications of thecommercial liquid of seaweed extracts of Ascophyllum nodosum (Acadian® and /or Toggle®) were efficient in the soybean crop, increasing the productivity indifferent conditions without causing a negative impact on the microbialcommunity
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
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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