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Biology12264 articles archived since 1845

Kellogg to stores: Stop selling peanut butter snacks

In the wake of a nationwide salmonella outbreak, cereal maker Kellogg has halted sales of its popular Keebler and Austin brand peanut butter crackers as a "precautionary measure" and is urging consumers not to eat the popular snacks...

January 15, 2009 — Lisa Stein
Getting a Teeny-Tiny Grip

Getting a Teeny-Tiny Grip

In a report in the Proceedings of the National Academy of Sciences USA, Johns Hopkins University researchers discuss their invention of a "microgripper," a metallic device the size of a speck of dust that can float through tissue and latch on to individual cells...

January 15, 2009

Can a simple checklist prevent surgical errors?

A new study has found that hospitals could cut surgery complications by about 30 percent and resulting deaths by 40 percent if doctors and nurses follow a checklist of safety rules before, during and after performing surgery...

January 14, 2009 — Coco Ballantyne

Eavesdropping on Dolphins

Inventor John Stuart Reid has patented a device he calls a CymaScope, which creates three-dimensional images of sound. He hopes to use it to identify specific dolphin sounds. Cynthia Graber reports...

January 14, 2009
Pterodactyls' Ptough Ptakeoffs

Pterodactyls' Ptough Ptakeoffs

Johns Hopkins researcher Michael Habib contends that the weight carried by most pterosaurs meant that they needed to push off the ground with all four limbs to achieve takeoff (in a study published in the German journal Zitteliana Reihe B: Abhandlungen der Bayerischen Staatssammlung fur Palaontologie und Geologie )...

January 13, 2009

Can a good night's sleep prevent a cold?



People who get less than seven hours of shut-eye nightly are three times more likely to catch a cold than those who get eight or more hours, according to a new study.

January 12, 2009 — Coco Ballantyne
Do White Blood Cells Make Cancer Deadly?

Do White Blood Cells Make Cancer Deadly?

The ability to spread underlies the killing power of cancer. The process occurs, John Pawelek thinks, when tumor cells fuse with white blood cells—an idea that, if right, could yield new therapies...

January 12, 2009 — Charles Q. Choi
Judging a Book by Its Genomes

Judging a Book by Its Genomes

A study to be presented at the meeting of the Bibliographical Society of America shows that some medieval manuscripts can be tested to establish place and time of origin--because the pages are made from animal skins that offer up DNA evidence...

January 12, 2009

Can open-heart surgery make you dimmer?

Every year, about half a million Americans undergo open-heart surgery. Roughly 60 percent of them experience some degree of mental decline after the surgery, a phenomenon that surgeons call "pumphead." A new study in this month's Annals of Thoracic Surgery sheds light on possible causes of the mysterious condition, which in some patients is temporary but in others may last a lifetime...

January 9, 2009 — Coco Ballantyne
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