Results 101 to 110 of about 1,049,594 (310)
Revista Brasileira de Engenharia Agrícola e Ambiental, 2001 Utilizou-se um simulador de chuvas e um canal de solo para se avaliar o efeito da declividade da superfície do solo e da energia cinética decorrente das chuvas simuladas nas perdas de solo em áreas entre sulcos.
Ricardo S.S. Amorim +3 more
doaj +1 more source
, 2000 Fix a prime number p and choose, once and for all, an embedding of the algebraic closure of Q into Qp. Let k and N be integers, and suppose N is not divisible by p. If f is a modular form of weight k, level N, and trivial character which is an eigenform for the p-th Hecke operator Tp, we define the slope of f to be the p-adic valuation of the ...
openaire +3 more sources
Structural and biochemical analysis of a B12 superbinder
FEBS Letters, EarlyView.BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices +3 more
wiley +1 more source
Exploring inconsistencies in environmental impact assessments of organic farming
Academia Environmental Sciences and SustainabilityDespite the growing popularity of organic farming, persistent questions surround its environmental effects. A 2017 meta-analysis suggested elevated acidification and eutrophication potentials per unit of agricultural production for organic ...
Hikaru Komatsu, Jeremy Rappleye
doaj +1 more source
FEBS Letters, EarlyView.Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav +2 more
wiley +1 more source
Industrial Crops and ProductsLight quality is widely recognized as a crucial environmental factor mediating the trade-off between plant growth and defense, with important implications for turfgrass production.
Jiabao Chen +7 more
doaj +1 more source
coneoproject/SLOPE: Automated sparse tiling paper
, 2017 SLOPE is a run-time system and code generator for fusing and tiling loops with indirect memory ...
Fabio Luporini
core +1 more source
The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation
FEBS Letters, EarlyView.Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge +6 more
wiley +1 more source
Modeling the evolution of natural cliffs subject to weathering. 2, Discrete element approach [PDF]
, 2011 The evolution of slopes subjected to weathering has been modeled by assuming Mohr-Coulomb behavior and by using a numerical approach based on the discrete element method (DEM).
G. B. Crosta +3 more
core +1 more source