Ammonia simply diffuses
to the liquid layer between the microbe's two membranes, he says.
As soon as a water molecule diffuses
in the uncured sealant, it reacts.
The former sits on the cell surface, and the latter diffuses
through the environment around these cells.
Architects there have responded with a "breakthrough" sky-light device that properly diffuses
sunlight in all seasons and provides fifty percent of room light.
But as the problem persists, more substance P gets released, diffuses
farther away , and excites distant neurons that normally answer to stimuli from areas beyond the injury.
The motion, called reptation, suggests a reptilian slithering, which approximates how a tangled polymer - like a basket of snakes - behaves as it diffuses
from one surface to another.
This gas, known to induce ripening when it diffuses
from one piece of fruit to another, seemed the perfect candidate.
The researchers report that a Striga root tip releases an enzyme that they think diffuses
through the soil and reacts with a sorghum root to form another quinone compound, which in turn diffuses
back toward the Striga root, where it triggers haustoria formation.