News tagged with chemical stimuli

Scientists get detailed glimpse of chemoreceptor architecture in bacterial cells

Using state-of-the-art electron microscopy techniques, a team led by researchers from Caltech has for the first time visualized and described the precise arrangement of chemoreceptors—the receptors that sense ...

Biology / Cell & Microbiology

created Sep 24, 2009 | popularity 4.5 / 5 (2) | comments 0

A scientist probes the origins of 'ouch!'

Skinning a knee, swallowing habanero salsa, and installing snow chains bare-handed might seem pretty different at first. But all have one thing in common -- they're guaranteed to hurt.

Medicine & Health / Medical research

created Jul 02, 2009 | popularity not rated yet | comments 3

Workhorse immune molecules lead secret lives in the brain

Molecules assumed to be in the exclusive employ of the immune system have been caught moonlighting in the brain - with a job description apparently quite distinct from their role in immunity.

Medicine & Health / Neuroscience

created Mar 30, 2009 | popularity 5 / 5 (3) | comments 0

How a brain chemical changes locusts from harmless grasshoppers to swarming pests

(PhysOrg.com) -- Scientists have uncovered the underlying biological reason why locusts form migrating swarms. Their findings, reported in today's edition of Science, could be used in the future to prevent ...

Biology /

created Jan 29, 2009 | popularity 4.8 / 5 (6) | comments 2