1,723,623 research outputs found
Características agronômicas e químicas das variedades de cana-de-açúcar RB83-5486 e RB86-7515 sob irrigação e sequeiro Agronomic and chemical characteristics of RB83-5486 and RB86-7515 sugarcane varieties under irrigated and rainfed conditions
Get PDFObjetivou-se, neste trabalho, avaliar as características agronômicas e a composição química de variedades de cana-de-açúcar sob irrigação e sequeiro colhidas em final de safra. O delineamento experimental foi bloco ao acaso, com seis repetições, duas variedades (RB83-5486 e RB86-7515), em dois ambientes: irrigado e sequeiro. As produções de colmo e matéria seca foram favorecidas pela irrigação, com destaque para a RB86-7515. Maiores teores de proteína bruta, fibra em detergente ácido, celulose e menores teores de matéria seca, Brix, carboidratos não fibrosos (CNF) e digestibilidade in vitro da matéria seca (DIVMS) foram registrados nas variedades sob irrigação. A fibra em detergente neutro (FDN) e a relação FDN por Brix foram mais elevadas em condições irrigadas e a RB86-7515 apresentou maiores valores. A lignina foi maior na RB86-7515 irrigada. A RB83-5486 apresentou Brix e CNF mais elevados e melhor DIVMS que a RB86-7515. Maior potencial produtivo foi expresso em condições irrigadas, destacando-se a RB86-7515 enquanto a irrigação alterou a composição química, afetando negativamente o valor nutritivo das variedades; já a RB83-5486 apresentou melhor perfil nutricional.The study aimed to evaluate the agronomic characteristics and chemical composition of sugarcane varieties, harvested at the end of the dry season, under irrigated and rainfed conditions. The experimental design was in a completely randomized blocks with six replications. Two varieties (RB83-5486 and RB86-7515) under irrigated and rainfed conditions were studied. The stalk and dry matter yield were improved by irrigation, especially in case of RB86-7515. Higher contents of crude protein, acid detergent fiber, cellulose and lower contents of dry matter, Brix, non-fiber carbohydrates (NFC) and in vitro dry matter digestibility (IVDMD) were obtained in the varieties under irrigation. The neutral detergent fiber (NDF) and NDF/brix were higher in irrigated conditions, variety RB86-7515 showing higher values. The lignin content was higher in the RB86-7515 under irrigated conditions. The RB83-5486 presented a better content of Brix, NFC and IVDMD than the RB86-7515. High productive potential was expressed under irrigated conditions, with emphasis on the RB86-7515. Irrigation influenced the chemical composition, negatively affecting the nutritional value of varieties. The RB83-5486 showed a better nutritional profile to be used as forage
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
Long noncoding RNA FTX promotes epithelial-mesenchymal transition of epithelial ovarian cancer through modulating miR-7515/TPD52 and activating Met/Akt/mTOR
Get PDFOverexpressed long noncoding RNA FTX is associated with low survival rate of epithelial ovarian cancer (EOC) patients, and enhances tumor infiltration. Thus, we aim to illuminate the undefined underlying mechanisms. Real-time quantitative polymerase chain reaction was applied to detect the expressions of FTX, miR-7515, miR-342-3p, miR-940, miR-150-5p, miR205-5p and tumor protein D52 (TPD52). Cell counting kit-8 and transwell assays were utilized to explore the cell viability, migration or invasion of EOC cells. Western blot was conducted to measure the expressions of E-cadherin, N-cadherin, Met, phosphorylated (p)-Met, Akt, p-Akt, mTOR and p-mTOR. LncBase and TargetScan predicted the binding of miR-7515 with FTX, and the binding of TPD52 with miR-7515, respectively. The two bindings were further validated by dual luciferase reporter assay. As a result, FTX sponged miR-7515 and miR-7515 targeted to TPD52. FTX was overexpressed in four EOC cell lines. Overexpressed FTX enhanced the cell viability, migration or invasion of EOC cells, elevated N-cadherin and TPD52 expressions, phosphorylated Met/Akt/mTOR, and inhibited Ecadherin expression. All these influences were subsequently reversed by miR-7515 mimic. Collectively, FTX regulates miR-7515/TPD52 to facilitate the migration, invasion or epithelial-mesenchymal transition of EOC through activating Met/Akt/mTOR signaling pathway
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
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