News tagged with feedback loop

Negative feedback makes cells 'sensitive'

New research has shown that negative feedback loops in cell signalling systems can be essential for a cell's ability to perceive the strength of a growth stimulus. Cells lacking the feedback loop became insensitive to the ...

Jan 08, 2014
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'Vicious cycle' shields, spreads cancer cells

A "vicious cycle" produces mucus that protects uterine and pancreatic cancer cells and promotes their proliferation, according to researchers at Rice University. The researchers offer hope for a therapeutic ...

Sep 16, 2013
5 / 5 (6) 0 | with audio podcast

Cheating favors extinction

Cooperative behaviour is widely observed in nature, but there remains the possibility that so-called 'cheaters' can exploit the system, taking without giving, with uncertain consequences for the social unit ...

Apr 30, 2013
4.1 / 5 (16) 70 | with audio podcast

Organic electronics—a hot matter

Organic semi-conductors could revolutionise electronics in various areas. Nowadays, components put out such high performances that they are used in small devices like mobile phones. With larger devices, however, ...

Apr 08, 2013
4 / 5 (3) 0

Feedback loop maintains basal cell population

Notch – the protein that can help determine cell fate – maintains a stable population of basal cells in the prostate through a positive feedback loop system with another key protein – TGF beta (transforming growth factor ...

Nov 01, 2012
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Researchers discover the 'anternet'

(Phys.org)—On the surface, ants and the Internet don't seem to have much in common. But two Stanford researchers have discovered that a species of harvester ants determine how many foragers to send out ...

Aug 27, 2012
4.9 / 5 (12) 1 | with audio podcast