Results 141 to 150 of about 80,912 (204)

Microbiological effects of sublethal levels of antibiotics

Nature Reviews Microbiology, 2014
The widespread use of antibiotics results in the generation of antibiotic concentration gradients in humans, livestock and the environment. Thus, bacteria are frequently exposed to non-lethal (that is, subinhibitory) concentrations of drugs, and recent evidence suggests that this is likely to have an important role in the evolution of antibiotic ...
Dan I. Andersson, Diarmaid Hughes
openaire   +2 more sources

Effects of sublethal concentrations of a herbicide onDaphnia

Die Naturwissenschaften, 1976
2 -I 0 +I +2 Zeitverschiebung ~ [d] Fig. 1. Zusammenhang zwischen Reaktionsgeschwindigkeitskonstante trod Zeitverschiebnng bei verschiedenen Alkoholen: I Methanol, 2 Athanol, 3 n-Propanol, 4 n-Butanol, 5 n-Amylalkohol, 6 Cyclohexanol, 7 Benzylalkohol, 8 1Phenyl/ithanol, 9 Athylenglykol.
Schober, U., Lampert, W.
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Sublethal effects of three pesticides on Japanese medaka

Archives of Environmental Contamination and Toxicology, 1993
One- to 2-day-old medaka (Oryzias latipes) larvae were exposed for 4 days to the rice field pesticides methyl parathion, molinate, carbofuran and a mixture of all three. Pesticide concentrations were one-half the 96 h LC50 ("high concentration") and levels approximating those measured in receiving waters from rice field runoff ("low concentration ...
A G, Heath   +3 more
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