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Tech
When the Chips are Down
Scientists seek alternatives to a computer technology nearing its limits.
By Laura Sivitz -
Archaeology
Seeing Past the Dirt
Increasingly, researchers are using geophysical techniques such as ground-penetrating radar and magnetometers to target their excavations.
By Sid Perkins -
Tech
Quantum dots light up cancer cells in mice
Brightly fluorescent crystals known as quantum dots have the potential to seek out cancerous cells in the body, a trick that could lead to highly precise cancer screening.
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Health & Medicine
A Matter of Time
Some patients are diagnosed with severe heart attacks in or near hospitals that can't offer them the best treatment, but is emergency transport to a better-equipped facility worth the delay?
By Ben Harder -
Seek and Destroy: Virus attacks cancer, spares normal cells
A virus carried by mosquitoes naturally homes in on cancer cells and destroys them.
By John Travis -
Animals
Separate Vacations: Birds winter apart but return in sync
Mated pairs of black-tailed godwits may fly off to winter refuges a thousand kilometers apart but can still arrive back at their breeding site the next spring within a few days of each other.
By Susan Milius -
Humans
From the October 20, 1934, issue
Searching New York's East River for golden treasure, enormous canyon discovered in Mexico, and new radioactive elements predicted.
By Science News -
Earth
New accord targets long-lived pollutants
Negotiators drafted an agreement to ban or phase out some of the world's most persistent and toxic pollutants.
By Janet Raloff -
Health & Medicine
Alzheimer’s Advance: Omega-3 fatty acid benefits mice
A diet that includes a key omega-3 fatty acid found in fish prevents some memory loss in mice that develop a disease resembling Alzheimer's.
By Nathan Seppa -
Tech
Radio-a-Wreck
Radio transmitters broadcasting from imploding buildings are informing engineers about how such collapses disrupt radio communications and how rescuers might overcome those disruptions.
By Peter Weiss -
Health & Medicine
Scanning Risk: Whole-body CT exams may increase cancer
Adults who routinely get whole-body CT scans without medical cause are exposing themselves to doses of radiation that may increase their risk of dying from cancer.
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Animals
Pirates of the Amphibian: Males fertilize eggs of another guy’s gal
For the first time among amphibians, scientists have found frogs that sneak their sperm onto egg clutches left by another mating pair.
By Susan Milius