We found an interaction between SEM condition and electrode (F3, F4, Fz), and a main effect of time point and electrode. Our key finding revealed that the stimulus presentation induces different patterns over frontal theta power increase between the left and right hemisphere. We conclude that

right and left frontal regions are an important factor to discriminate between memory- versus stimulus-driven SEMs, and speculate on their different contributions to visuospatial attention. (C) 2011 Elsevier Ireland Ltd. All rights reserved.”
“This article re-analyses a prey-predator model with a refuge introduced by one of the founders of population ecology Cause and his co-workers to explain discrepancies between their observations and predictions of the Lotka-Volterra prey-predator model. They replaced the linear functional response used by Lotka and Volterra by a saturating functional response with a discontinuity Daporinad price at a critical prey density. At concentrations below this critical density prey were effectively in a refuge while at a higher densities they were available to predators. Thus, their functional response was of the Holling type III. They analyzed this model and predicted learn more existence of a limit cycle in predator-prey

dynamics. In this article I show that their model is ill posed, because trajectories are not well defined. Using the Filippov method, I define and

analyze solutions of the Cause model. I show that depending on parameter values, there are three possibilities: (1) trajectories converge to a limit cycle, as predicted by Cause, (2) trajectories converge to an equilibrium, or (3) the prey population escapes predator control and grows to infinity. (C) 2011 Elsevier Ltd. All rights reserved.”
“Activation of central 5-HT3 receptors by the selective agonist m-CPBG (1-(3-chlorophenyl)biguanide hydrochloride, 40 nM i.c.v.) produced stronger hypothermic effect in mice than activation of 5-HT1A receptors by their agonist 8-OH-DPAT (8-hydroxy-2-(di-n-propilamino)tetralin) injected by the same route at an equimolar dose. The hypothermic effect of m-CPBG was realized by influence Hydroxychloroquine research buy on both the heat production and the heat loss: oxygen consumption and CO2 expiration were decreased; heat dissipation determined by the tail skin temperature was increased. The heat loss effect of 5-HT3 receptors was significantly shorter than the decrease in metabolism indicating the prevalent role of heat production decrease in 5-HT3 receptor-induced deep and long-lasing hypothermia. In addition, the decrease in the respiratory exchange ratio (RER) was shown suggesting that the activation of the 5-HT3 receptors switched metabolism to prevalent use of lipids as the main energetic substrate. 5-HT1A receptor agonist 8-OH-DPAT (40 nM icy.