News
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PlantsGreen Red-Alert: Plant fights invaders with animal-like trick
Mustard plants' immune systems can react to traces of bacteria with a burst of nitric oxide, much as an animal's immune system does.
By Susan Milius -
PhysicsGraphite in Flatland: Carbon sheets may rival nanotubes
Researchers have created freestanding carbon films as thin as one atom.
By Peter Weiss -
Medical Decisions in Question: Mental incapacity missed by docs
A substantial minority of medical patients treated for acute conditions at a British hospital lacked the ability to make informed decisions about their care, although their physicians usually didn't recognize it.
By Bruce Bower -
PhysicsDancing the heat away
By laser-zapping nanocapsules of water, scientists find that the specific molecular motions caused by the excitation, not just simple heat diffusion, determine how energy and heat flow through such minuscule structures.