Chemistry
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Chemistry
Leaden blood hikes granny’s heart risks
Featured blog: Even low concentrations of lead circulating in blood may pose lethal heart risks, a new study finds.
By Janet Raloff -
Chemistry
Bubbles turn on chemical catalysts
Mechanical force could help chemical compounds spur reactions when the time is right.
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Chemistry
Prions are common, at least in yeast
A new study of shape-shifting proteins in baker’s yeast reveals that prions are common and may help organisms survive in changing conditions.
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Ecosystems
Exxon Valdez: Tidal waters still troubled
From birds and clams to herring, many species continue to show persistent impacts of an oil spill that occurred two decades ago.
By Janet Raloff -
Health & Medicine
How herpes re-rears its ugly head
Researchers identify a key player in the reactivation of herpes simplex virus type 1.
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Ecosystems
Exxon Valdez killed future for some killer whales
An Alaskan oil spill disrupted family structure in killer-whale groups, with lasting and dramatic repercussions.
By Janet Raloff -
Health & Medicine
Licorice may interfere with certain drugs
Studies in rats suggest that the active compound in licorice root can promote or hinder the availability of certain drugs.
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Humans
Otters and oil: Problems remain
The behavior of Alaska's southern sea otters may unwittingly expose them to toxic oil-spill residues.
By Janet Raloff -
Chemistry
Exxon Valdez oil lingers, as does its toxicity
Even 20 years after a major oil spill, barely degraded pockets of the oil persist within some intertidal beaches, research shows.
By Janet Raloff -
Agriculture
Fighting fungal weapons, not fungi
Scientists have engineered several compounds that target an enzyme that blackleg and black spot fungi use to thwart plant defense systems. The selective compounds are designed not to harm beneficial species while still protecting valuable crops.
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Chemistry
Helping molecules reach meta
Researchers find a simple way to get molecules into the meta position on an aromatic ring, opening fresh possibilities for making new compounds.
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Earth
Vitamin E shields lungs from smog effects
The "other" vitamin E shows promise in being able to shield the lungs and nasal passages from ozone damage.
By Janet Raloff