âBush lost reelection largely because of a recession that had already ended well before voting day,â frum wrote. The Twilight Vindication of George H.W. Bush Mark K. Updegrove October 20, 2013. As frum notes, Cruz is âa hugely smart, highly focused political player, with a clear-eyed view of political realities.â.
In biologically inspired neural networks, the activation function is usually an abstraction representing the rate of action potential firing in the cell.
The innate immune system tells the adaptive immune system when it's time to help mount a defense. It does this by posting two types of changes on the phagocyte surface that activate the adaptive immune system. These changes are necessary for full immune system activation.