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Delay nonlinear boundary conditions as limit of reactions concentrating in the boundary
(ACADEMIC PRESS INC ELSEVIER SCIENCESAN DIEGO, 2012)
In this work, we are interested in the dynamic behavior of a parabolic problem with nonlinear boundary conditions and delay in the boundary. We construct a reaction-diffusion problem with delay in the interior, where the ...
Melatonin in Arabidopsis thaliana acts as plant growth regulator at low concentrations and preserves seed viability at high concentrations
(Elsevier France-editions Scientifiques Medicales Elsevier, 2015-09-12)
Since the discovery of melatonin in plants, several roles have been described for different species, organs, and developmental stages. Arabidopsis thaliana, being a model plant species, is adequate to contribute to the ...
Ivermectin (3.15%) long-acting formulations in cattle: Absorption pattern and pharmacokinetic considerations
(Elsevier Science, 2007-07)
Ivermectin (IVM) is a broad-spectrum antiparasitic drug extensively used in veterinary medicine. The composition of the pharmaceutical preparation affects IVM absorption and its systemic availability. After the introduction ...
Influence of the concentration of Sb2O3 on the electrical properties of SnO2 varistors
(2011)
Varistors are electronic materials with nonohmic behavior. In traditional SnO2 varistors, CoO acts as a densifying agent, Nb2O5 increases the electrical conductivity of SnO2 grains, and Cr2O3 produces a more uniform ...
The ActP acetate transporter acts prior to the PitA phosphate carrier in tellurite uptake by Escherichia coli
(2015-08-01)
The tellurium oxyanion tellurite is harmful for most microorganisms. Since its toxicity occurs chiefly once the toxicant reaches the intracellular compartment, unveiling the toxicant uptake process is crucial for understanding ...
Differences in the hydroxylation pattern of flavonoids alter their chemoprotective effect against direct- and indirect-acting mutagens
(Elsevier B.V., 2014-07-15)
The antimutagenicity of ten flavonoids, differing in their hydroxylation patterns against direct-acting and indirect-acting mutagens, namely 4-nitro-o-phenylenediamine, sodium azide, mitomycin C, benzo[a]pyrene, aflatoxin ...