The connectionist views mental processing as the dynamic and graded evolution of activity in a neural net, each unit's activation depending on the connection strengths and activity of its neighbors, according to the activation function.
Though thousands of genes are involved in the development of an organ such as a tooth, these genes are switched on in a cascade, with the activity of one triggering the activation of the next.
This regulon controls the bacteria's defences against antibiotics.When E. coli senses a dangerous chemical, a protein called MarA activates this regulon, which is known as Mar because its activation confers "multiple antibiotic resistance".
A linguistic entity such as a phoneme, word, or phrase of a particular type may be represented within a layer either by a pattern of activation of units in that layer (a distributed representation) or by a single activated unit (a localist representation).
It was an astonishing performance, spoiled only by someone accidentally enabling their phone's voice activation at the end.
Those incomprehensible claims might bring to mind some wild new mechanism for the production of sound through the digital activation of a piano key: so what is it, a keyboard that lets you produce light as well as sound (like Scriabin wanted) or maybe a set of ivories that turns the piano into a Marty-McFly-style musical DeLorean?
The feature, called activation lock, was first introduced in 2013 as an option within Apple's iOS 7, but turned on by default on iOS 8 in 2014.
Back in the 1950s, scientists working on humans identified a state marked by increased brain activation, accelerated breathing and heart rate, and muscular paralysis.
The hotel room is suffused with an uncertain, half-joking paranoia; early on, when Mr Snowden puts a blanket over his head (to thwart the possible remote activation of his laptop's webcam), it provokes a mix of nervous laughter and derision.
And the launch has already been postponed several times from its original date of February 7th for various reasons, including last-minute problems with the Dragon's software.Sense and sensibilityA failure this time would mean flying another test, and a delay in the activation of SpaceX's contract.
For example, Herceptin, an antibody-based drug that stops the activation of a cell-surface receptor protein called HER-2, is often paired with traditional therapies in breast-cancer care.
