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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. The checklist, issued by the World Health Organization last year in response to soaring reports of hospital errors, lists 19 steps that surgical teams should follow, starti
This story is a supplement to the feature "Digital Forensics: How Experts Uncover Doctored Images" which was printed in the June 2008 issue of Scientific American. Lighting Composite images made of pieces from different photographs can display subtle differences in the lighting conditions under which each person or object was originally photographed. Such discrepancies will often go unnoticed b
Download The brain will find patterns or images where none really exist. Relaxation exercises lowered the chances of finding a pattern that wasn't really there. Adam Hinterthuer reports.
A new way to examine humanity's impact on the environment is to consider how the world would fare if all the people disappeared By Steve Mirsky BACK TO NATURE: If all human beings vanished, Manhattan would eventually revert to a forested island. Many skyscrapers would topple within decades, undermined by waterlogged foundations; stone buildings such as St. Patrick's Cathedral (at right in art
10 Animals That May Go Extinct in the Next 10 Years The Dodo may soon have some august company By Coco Ballantyne 1 of 10 Iberian Lynx Lynx pardinus The world's most endangered cat species, the Iberian lynx once thrived in Spain, Portugal and southern France. Today, its numbers have dwindled to some 120 individuals divided between small populations in Spain's Andalusia region. Habitat dest
When playing this simple game, people consistently reject the rational choice. In fact, by acting illogically, they end up reaping a larger reward--an outcome that demands a new kind of for�mal reasoning By Kaushik Basu Lucy and Pete, returning from a remote Pacific island, find that the airline has damaged the identical antiques that each had purchased. An airline manager says that he is hap
May 14, 2007 in Biology | 0 comments | Post a comment Internal-Clock Gene Implicated in Weight Gain Scientists tie a circadian-regulated gene to metabolism, fat storage By Nikhil Swaminathan FAT FREE: Mice that have lost the function of the gene Nocturnin do not gain weight when they are fed a high-fat diet. IMAGE COURTESY OF BESHARSE LAB Scientists have found that a gene controlled by the ma
Scientists Closer to Unfolding Mysteries of Prion Formation in Mad Cow Disease Short elements within a prion protein's sequence can cause it to activate and even cross the species barrier to spread neurodegenerative disorders such as Creutzfeldt-Jakob disease to humans By Nikhil Swaminathan RECIPE FOR MADNESS: Researchers have determined how prions, the incorrectly folded proteins linked to mad
Leading science and tech journalists dive into a rich world of scientific discovery in this bite-size science variety show.
July, 2006 in | 4 comments | Post a comment The Expert Mind Studies of the mental processes of chess grandmasters have revealed clues to how people become experts in other fields as well By Philip E. Ross EFFORTFUL STUDY is the key to achieving success in chess, classical music, soccer and many other fields. New research has indicated that motivation is a more important factor than innate
NASA’s New Asteroid Sample Is Already Rewriting Solar System History Scientists have scarcely begun studying pristine material from asteroid Bennu brought back to Earth by the OSIRIS-REx mission, but have already found several surprises
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