News tagged with feedback loop

OpenStreetMap adds A to B directions

(Phys.org)—The people who run OpenStreetMap.org (the foundation) have announced that A to B directions have been added to the open source web site. While acknowledging that adding directions has been d ...

dateFeb 19, 2015 in Internet report
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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 ...

dateJan 08, 2014 in Cell & Microbiology
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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 ...

dateSep 16, 2013 in Biochemistry
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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 ...

dateApr 30, 2013 in Evolution
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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, ...

dateApr 08, 2013 in Condensed Matter
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