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‘Tube’ physics limits leaf size, tree height
UC DAVIS (US) — Basic scientific principles can explain why leaves on the tallest trees are all about the same size, and why those tall trees aren’t even loftier. In both cases—leaf size and tree...
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Heat brings earliest spring blooms on record
BOSTON U. (US) — Unusually warm spring weather in 2010 and 2012 resulted in the earliest blooms on record in two US locations, a new study finds.While researchers says there is no sign plants have hit...
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Cells flock like birds to heal skin wounds
RICE (US) — Cells coordinate their motions as they race to cover and ultimately heal wounds to the skin.Researchers once thought only the cells at the edge of a growing patch of wounded skin were...
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Tool sprays brain to find tumors quickly
PURDUE (US) — A new tool that sprays a stream of charged solvent onto tissue may one day help brain surgeons find and remove tumors.“We hope to eventually be able to perform this analysis during...
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Little kids know to share, but hoard anyway
U. MICHIGAN (US) — Children as young as three years old know they should share, but putting it into practice is another story.A new study shows it’s not until the age of seven or eight that kids...
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Got public speaking jitters? Experts say embrace the fear
U. ROCHESTER (US) — A surprisingly effective way of handling stage fright is to view shaky hands, pounding heart, and sweaty palms as a good thing.“The problem is that we think all stress is bad,”...
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As a chronic condition, smoking is undertreated
YALE (US) — Smoking is drastically undertreated compared to hypertension, diabetes, or asthma, and should be considered a chronic disease, experts say. A recent study reveals physicians are failing to...
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Most Americans are confused by health insurance
CARNEGIE MELLON (US) — Many Americans don’t understand how their health insurance policies work, even though they think they do, according to recent surveys. This fall, as part of the 2010 Affordable...
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Amoeba farms bacteria for food and weapons
WASHINGTON U. – ST. LOUIS (US) — There are new details about how the world’s smallest farmer picks up edible bacteria and then harvests them like crops.The organism, a social amoeba called...
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This is China’s chance to lead the way to sustainability
MICHIGAN STATE (US) — China’s status as a global leader in carbon dioxide emissions gives it a unique opportunity to also be a leader in slashing them, experts say.In 2011, China accounted for a...
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