News
- Animals
Sparrows Cheat on Sleep: Migratory birds are up at night but still stay sharp
During their fall migration season, white-crowned sparrows sleep only about a third as much as they do at other times of the year without becoming slow-witted.
- Health & Medicine
Leukemia Fighter: Drug could combat resistant cases
A new drug for treating chronic myeloid leukemia that is resistant to the frontline drug imatinib shows promise in mouse tests.
- Physics
Feel the Force: Magnetic probe finds lone electron
Scientists have observed a single electron's magnetism.
- Chemistry
Nitrogen Power: New crystal packs a lot of punch
At extremely high temperatures and pressures, nitrogen gas assumes a three-dimensional crystal structure called polymeric nitrogen, a long-sought energy-storage material.
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Groomed DNA Handles Threats: Mothering styles alter rats’ stress responses
In rats, mothering styles set the genetic stage for a pup's lifelong responses to stressful situations.
- Health & Medicine
A Toxic Side of Weight Loss: Pollutants may slow body’s metabolism
Weight loss releases toxic chemicals into the bloodstream, which may slow the body's metabolism.
- Earth
Sea Change: Carbon dioxide imperils marine ecosystems
Almost half the carbon dioxide produced by human activity in the past 2 centuries is now dissolved in the oceans, resulting in chemical changes that, if unchecked, could threaten some marine ecosystems.
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Female brains know how to fold ’em
Women compensate for the smaller overall volume of their brains by squeezing more folds into some of the space than men do.
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- Physics
Quantum snare entraps key fifth photon
By coaxing five quantum particles into a state of entanglement, physicists have taken an important step toward dependable quantum computers and more-versatile schemes for transferring quantum information.
- Earth
Bacteria found to release arsenic into groundwater
Arsenic gets into groundwater largely through the action of bacteria residing in aquifer sediments.
- Health & Medicine
Four die of rabies in transplanted tissues
Four people who received tissue transplanted from a man who had died from an undiagnosed rabies infection have since themselves died from the same incurable neurological disease.
