Results 91 to 100 of about 10,600,838 (308)

Seletividade de herbicidas: I - utilização do método de testemunhas pareadas em experimento com cana-de-açúcar Herbicide selectivity: I - use of additional check methods in sugarcane experiments

open access: yesPlanta Daninha, 2005
Este trabalho objetivou comparar a precisão experimental dos delineamentos em blocos casualizados e blocos casualizados com testemunhas pareadas na avaliação da seletividade de herbicidas em soqueira de cana-de-açúcar de terceiro corte, cultivar RB835089.
C.A.M. Azania   +4 more
doaj   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

Método de Papadakis e número de repetições em experimentos de soja The Papadakis method and the replications number in soybean experiments

open access: yesCiência Rural, 2009
Neste trabalho, foram utilizados dados de produtividade de grãos de 216 ensaios de genótipos de soja, realizados no Estado do Rio Grande do Sul, nos anos agrícolas 2003/2004, 2004/2005 e 2005/2006. O objetivo foi verificar se o uso do método de Papadakis
Lindolfo Storck   +3 more
doaj  

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

MELHORIA DA QUALIDADE DE ENSAIOS DE AVALIAÇÃO DE CULTIVARES DE MILHO ATRAVÉS DE INDICADORES DE FERTILIDADE DO SOLO THE USE OF SOIL FERTILITY DATA TO IMPROVE PRECISION OF MAIZE YIELD TRIALS

open access: yesCiência Rural, 2001
O presente trabalho teve como objetivo verificar se o uso dos resultados da análise do solo numa análise da covariância com o rendimento de grão, aumenta a precisão experimental dos ensaios de avaliação de cultivares de milho.
Sandra Feijó   +4 more
doaj   +1 more source

The direct experimental detection of the systematic error of precise levelling [PDF]

open access: yesSymposium - International Astronomical Union, 1979
A method is described for determining one and only one parameter governing the refraction effect of levelling. The central idea is that this parameter is determined not by (temperature) measurements during the observation but by adding one more element in the Least Squares Adjustment of the levelling network.Furthermore is described an experiment where
openaire   +1 more source

Modelling stem cell differentiation related processes—A practical overview for biologists

open access: yesFEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar   +4 more
wiley   +1 more source

Relação entre diferença mínima significativa e coeficiente de variação nos ensaios de competição de cultivares Relation among least significant difference and coefficient of variation in the cultivar competition trials

open access: yesCiência Rural, 1998
O objetivo deste trabalho foi caracterizar ensaios de competição de cultivares de milho, trigo, soja, feijão, cevada, aveia, triticale e sorgo conduzidos no Estado do Rio Grande do Sul e estimar a relação entre a diferença mínima significativa (DMS) e o ...
Alessandro Dal Col Lúcio   +1 more
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Productive variability, border use and plot size in trials with cherry tomato

open access: yesCiência Rural, 2018
: Knowing the productive variability within protected environments is crucial for choosing the experimental design to be used in that conditions.
Daniel Santos   +4 more
doaj   +1 more source

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