Slow Spring

It's spring-time for slow inactivation

457 C o m m e n t a r y Some voltage-activated ion channels have evolved ways of terminating or limiting ionic flux even when a depo-larized membrane potential would keep them open. When Hodgkin and Huxley observed the time-dependent decay of Na + permeability in the squid giant axon, they termed it " inactivation " (Hodgkin and Huxley, 1952). This process, which takes place in the millisecond ...

Homozygous state for Hb Constant Spring (slow-moving Hb X components).

Slow-moving and far-travelled dense pyroclastic flows during the Peach Spring super-eruption

Explosive volcanic super-eruptions of several hundred cubic kilometres or more generate long run-out pyroclastic density currents the dynamics of which are poorly understood and controversial. Deposits of one such event in the southwestern USA, the 18.8 Ma Peach Spring Tuff, were formed by pyroclastic flows that travelled >170 km from the eruptive centre and entrained blocks up to ∼ 70-90 cm di...

Detecting spring after a long winter: coma or slow vigilance in cold, hypoxic turtles?

Many freshwater turtle species can spend the winter submerged in ice-covered lakes by lowering their metabolism, and it has been proposed that such severe metabolic depression render these turtles comatose. This raises the question of how they can detect the arrival of spring and respond in a sensible way to sensory information during hibernation. Using evoked potentials from cold or hypoxic tu...

an investigation on hydrogen embrittlement of the cr-si spring steel using slow strain rate test and weibull model

in this paper, the hydrogen embrittlement of the high strength cr-si spring steel with after zn-12%ni electroplating, have been evaluated. slow strain rate test with 3.34 × 10 -6 sec -1 strain rate was performed, and the hydrogen embrittlement index of the different samples was calculated. the effect of shot peening before plating and the baking after plating and also the effect of applying a n...