In Example 1, we have PulledBy(p4)={ p1, p5, p8}, but p8 has never been detected as a prey in all the eight purifications, so backlink(p4)={ p1, p5}.
Then, if a protein x is detected as a prey in a purification e, the number of the reciprocal proteins of x that are also detected in e can be expressed as | reciprocal(x)∩preys e)|, and the number of all its reciprocal proteins that are possible to be detected as preys in e is | reciprocal(x)−{bait e)}|.
We were not able to include such a prey shift in the model because of the complexity of the implementation.
At Cambridge University, participants lay in a brain scanner playing a computer game which involved chasing an artificial prey in the form of grey dot around a maze.
As a prey animal in the wild that depends largely on its sense of hearing, your hedgehog will find too much noise and activity very distressing.
Thus, a killer whale, though distantly related to a cow, would not do well with a cow's brain, since the killer whale needs a brain designed to control a body that tracks prey in the ocean rather than eating grass in a meadow.
Sometimes, though, the tourist mayhem does seep in, in the form of a foreign visitor stalking an "exotic" squirrel with his point-and-shoot camera as if he were a leopard stalking his prey in the Masai Mara.
Electric fish first developed their unique abilities as a means of locating prey in the dark, says neurobiologist Philip Stoddard of Florida International University.
The peregrine falcon (Falco peregrinus), also known as the peregrine, and historically as the duck hawk in North America, is a widespread bird of prey in the family Falconidae.
