The DNA replication origins are activated in a temporal fashion during S phase, with some origins activating (firing) early in S phase, whereas others fire in the middle and later parts of S phase (McCune et al. 2008).
If n < r a q r an active neurone turns quiescent, otherwise a quiescent neurone is activated (fires).
Some building occupants cannot hear the activated fire alarm nor can they recognize the alarm, although the fire alarm system has been installed to the acceptable standard.
LC neurons of female rats are more sensitive to CRF than males, such that a dose of CRF that is too low to activate neuronal firing in males increases neuronal firing in females [ 121].
The handle also contained two pins and a lever; the first pin was pulled out to make the casing fall away, and the second to activate the firing mechanism in the grenade.
When the user pulled a pin on the handle of the grenade, the casing would fall away and expose the sphere; another pin would activate the firing mechanism, and the user would then attempt to attach the grenade to an enemy tank or other vehicle, ideally with enough force to break the glass ball.
As my wife likes to put it, we battled like dinosaurs, the most primal and survival-oriented parts of our brains activated and firing like Gatling Guns.
Safe zones are either permanent, or need to be activated by firing certain beam weapons at force field generators.
When she threatens to throw Toto into a fiery cauldron, Dorothy nearly gives in until the Scarecrow hints to her to activate a fire sprinkler switch, which she does.
One candidate to mediate this effect is the persistent Na+ current (INaP) which is activated below firing threshold and amplifies EPSPs in hippocampal and neocortical neurons (Stuart and Sakmann 1995; Schwindt and Crill 1995; Andreasen and Lambert 1999; Fricker and Miles 2000).
