11.   Although scientists believe that they understand the general feedback mechanisms affecting climate, the directions and intensities of the feedback loops are largely unknown.

12.   Because of these rapid, positive feedback loops, the theory predicts that networks should tend to be either very full or very empty.

13.   Additionally, the Internet has created a near-instant feedback loop between gamers and designers that quickly hones products.

14.   By sharp contrast, pedophiles, racists and others who tend to live outside the larger societal feedback loop will find it far easier to keep doing so.

15.   Completing a destructive feedback loop, the warmer surface heats the air even more.

16.   Essentially, a pain-causing feedback loop was set in motion, creating the agony of a migraine.

17.   He is comfortable with such technical concepts as chaos theory, feedback loops and the first law of thermodynamics.

18.   He was caught in a shrieking feedback loop of remembrances, a screaming of memories, whose note rose higher and higher, until it began to shatter things.

19.   If enough merchants have been mortally wounded, it could depress prices and create a feedback loop that continues to hurt long into the future.

20.   In a kind of feedback loop, joblessness saps consumer willingness to spend, which hurts corporate profits, which can mean more layoffs.