Narrow Escape
The Narrow escape problem is a ubiquitous problem in biology, biophysics and cellular biology which has the following formulation: a Brownian particle (ion, molecule, or protein) is confined to a bounded domain (a compartment or a cell) by a reflecting boundary, except for a small window through which it can escape. The narrow escape problem is that of calculating the mean escape time. This time diverges as the window shrinks, thus rendering the calculation a singular perturbation problem.
Read more about this topic: Brownian Motion
Famous quotes containing the words narrow escape, narrow and/or escape:
“Comedy is an escape, not from truth but from despair; a narrow escape into faith.”
—Christopher Fry (b. 1907)
“because your clamorous blood
Beats an impermanent rest
You think the dead arise
Westward and fabulous:
The dead are those whose lies
Were doors to a narrow house.”
—Allen Tate (1899–1979)
“Those deprived of such friends rejoice; those who have them pray to escape them.”
—Sophocles (497–406/5 B.C.)