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.
Since the activation of the upper brain by the lower brain stem seemed to happen after cyclical phases of random nerve firings (PGO waves in cat studies), the theory was often characterized as dreams being the results of a sleepy (upper) brain doing its best it could to handle random signals from the lower brain.