Stirring speeds up chemical reaction

Retinal Waves Stirring Up a Storm

exploratory bouts in a novel environment? The only way to find out will be to record chronically across multiple units and cortical layers during the actual behavior and plasticity process. Finally, how such a shift in excitatory–inhibitory balance might be achieved is of interest. The brevity of the exploratory behavior required for bidirectional map changes is suggestive. Remarkably, just 4 m...

Mathematical model to predict drivers' reaction speeds.

Mental distractions and physical impairments can increase the risk of accidents by affecting a driver's ability to control the vehicle. In this article, we developed a linear mathematical model that can be used to quantitatively predict drivers' performance over a variety of possible driving conditions. Predictions were not limited only to conditions tested, but also included linear combination...

Improvement of Lipase Production at Different Stirring Speeds and Oxygen Levels

Lipase production by a Brazilian wild strain of Yarrowia lipolytica at different stirring speeds and air flow rates was studied. The relationship among lipid consumption, cell growth and lipase production by this microorganism is presented. The most pronounced effect of oxygen on lipase production was determined by stirring speed. Maximum lipase activity was detected in the late stationary phas...

Monsoon speeds up Indian plate motion

Genome Evolution: Recombination Speeds Up Adaptive Evolution

Mutual interference among linked genetic sites subject to selection may reduce the level of adaptation. A recent study detected this effect using data on protein sequence evolution and codon usage in Drosophila.