22 research outputs found

    Crude protein of tropical forage legumes grown in silvopastural system and full sol

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    Todos os textos, informa??es e resultados apresentados s?o de inteira responsabilidade dos autores.Ag?ncia financiadora para a realiza??o desse trabalho: Funda??o de Amparo ? Pesquisa do Estado de Minas Gerais (FAPEMIG).Objetivou-se neste estudo avaliar o teor de prote?na bruta (PB) de tr?s leguminosas forrageiras tropicais cultivadas em dois sistemas: no sub-bosque de sistema silvipastoril (SSP) e a pleno sol. O experimento foi conduzido em Curvelo-MG, na fazenda experimental da UFVJM. Utilizou-se um delineamento em blocos casualizados em esquema fatorial 2 (SSP e pleno sol) x 3 esp?cies (estilosantes, kudzu tropical e macrotiloma) com 4 repeti??es. O teor de PB foi determinado nas por??es: planta inteira, folha e hastes das tr?s leguminosas forrageiras em fun??o dos tratamentos. Foi observado efeito de esp?cie para as por??es planta inteira e haste (P<0,05), n?o sendo verificado este efeito para a por??o folha. Os maiores teores de PB para planta inteira e haste foram encontrados nas esp?cies kudzu e estilosantes (P<0,05), os quais diferiram do teor de PB apresentado no macrotiloma. Para o teor de PB na folha observou-se efeito da intera??o esp?cie x sistema de cultivo, tendo o macrotiloma apresentado acr?scimo no valor de PB (P<0,05) quando cultivado no sub-bosque do SSP. O sombreamento no sub-bosque do sistema silvipastoril estudado n?o promoveu incremento no teor de prote?na bruta para nenhuma das esp?cies cultivadas.The aim of this study was to evaluate the crude protein (CP) of three tropical forage legumes grown in two systems: the silvopastoral system understory (SSP) and full sun. The experiment was conducted in Curvelo, Minas Gerais at the experimental farm of UFVJM. We used a randomized block design in a factorial 2 (SSP and full sun) x 3 species (estilosantes, tropical kudzu and macrotiloma) with 4 repetitions. The crude protein content was determined in portions: Whole plant, leaves and stems of three forage legumes in the treatments. Kind of effect was observed for whole plant and stem portions (P <0.05), not being checked for this purpose the sheet portion. The higher crude protein content for whole plant and stem were found on kudzu and estilosantes species (P <0.05), which differ from the CP content presented in macrotiloma. For the PB content in the leaf it was observed effect of interaction species x cropping system, with the macrotiloma presented increase in the amount of CP (P <0.05) when grown in SSP understory. The shading in the understory of the silvopastoral system studied did not promote increase in crude protein content for any of the cultivated species

    Plagiarism as another ethical issue in scientific research

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    The excessive demand for publications results in high plagiarism and duplicate numbers by scientists who take over existing texts into new publications. In addition to serious ethical problems, this practice hinders the generation of original material. In order to reduce the problem, softwares such as eTBLAST are being used to detect plagiarism and repeated papers. Despite the persistence of fraudsters, these tools have helped to reduce these problems; however, the ideal solution would be the basic ethical establishment principles. Therefore, plagiarism has always been a foible that could lead to fraudulent and dishonorable development of science

    AI is a viable alternative to high throughput screening: a 318-target study

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    : High throughput screening (HTS) is routinely used to identify bioactive small molecules. This requires physical compounds, which limits coverage of accessible chemical space. Computational approaches combined with vast on-demand chemical libraries can access far greater chemical space, provided that the predictive accuracy is sufficient to identify useful molecules. Through the largest and most diverse virtual HTS campaign reported to date, comprising 318 individual projects, we demonstrate that our AtomNet® convolutional neural network successfully finds novel hits across every major therapeutic area and protein class. We address historical limitations of computational screening by demonstrating success for target proteins without known binders, high-quality X-ray crystal structures, or manual cherry-picking of compounds. We show that the molecules selected by the AtomNet® model are novel drug-like scaffolds rather than minor modifications to known bioactive compounds. Our empirical results suggest that computational methods can substantially replace HTS as the first step of small-molecule drug discovery

    Humic substances, purified MAP and hydrogel in the development and survival of Eucalyptus urograndis

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    ABSTRACT The development and survival of Eucalyptus urograndis plants may be influenced by products based on humic fractions of the organic matter, purified MAP and soil conditioners, such as hydrogel. Thus, the present study aimed to evaluate the effect of the commercial products Fertiactyl®, based on humic substances, purified MAP and hydrogel on the post-planting development and survival of Eucalyptus urograndis. The experiment was conducted in a randomized block design, with 25 treatments and four replicates, each of which consisted of 6 plants. The immersion of the tubes in solution with doses of Fertiactyl® and purified MAP promoted the increase in the development and survival of the plants. In the preparation of the hydrogel, the use of solution based on Fertiactyl® and purified MAP reduced the hydration capacity of the water-retaining polymer. With increasing doses, there was a linear increment in the electrical conductivity of the solution, exponentially reducing the hydration capacity of the polymer
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