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Latest Washington University in St. Louis Stories

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2010-08-30 20:20:40

Shock-synthesized diamonds said to prove a catastrophic impact killed off North American megafauna can't be foundAbout 12,900 years ago, a sudden cold snap interrupted the gradual warming that had followed the last Ice Age. The cold lasted for the 1,300-year interval known as the Younger Dryas (YD) before the climate began to warm again.In North America, large animals known as megafauna, such as mammoths, mastodons, saber-tooth tigers and giant short-faced bears, became extinct. The...

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2010-08-16 08:15:00

Tiny mice advance under of invasive beachgrass to feast on seeds of endangered plant At Point Reyes National Seashore in Marin County, Calif., a fierce battle is taking place under the oblivious, peeling noses of beachgoers. It's a battle between an invasive plant and a native plant, but with a new twist. The two plants, European beachgrass and Tidestrom's lupine, are not in direct competition, and yet the beachgrass is helping to drive the lupine over the cliff. European beachgrass provides...

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2010-08-12 08:52:55

A new imaging technique creates detailed three-dimensional images of the deadliest form of skin cancer Melanoma is one of the less common types of skin cancer but it accounts for the majority of the skin cancer deaths (about 75 percent). The five-year survival rate for early stage melanoma is very high (98 percent), but the rate drops precipitously if the cancer is detected late or there is recurrence. So a great deal rides on the accuracy of the initial surgery, where the goal is to remove...

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2010-08-04 11:56:54

Pass the chips and hand over the remote. In a study involving the first-ever daily energy expenditure measurements in apes, a researcher from Washington University in St. Louis and his team have determined that orangutans living in a large indoor/outdoor habitat used less energy, relative to body mass, than nearly any eutherian mammal ever measured, including sedentary humans. All this despite activity levels similar to orangutans in the wild. "It's like finding a sloth in your family tree,"...

2010-07-22 11:00:00

MENLO PARK, Calif., July 22 /PRNewswire/ -- SRI International and the Stanford University School of Medicine announced today their MISTRAL Collaborative (the Multidisciplinary Initiative for Surgical Technology Research Advanced Laboratory), in conjunction with the Institute for Pediatric Innovation, was recently awarded a $1M grant by the Food and Drug Administration (FDA) to support its work to commercialize innovative medical devices for pediatric care. A key objective for the...

2010-07-19 10:52:00

MIAMI, July 19 /PRNewswire/ -- Miami Children's Hospital (MCH), South Florida's only licensed specialty hospital exclusively for children, today announced that the first Miami Children's Hospital Nicklaus Care Center has opened in Palm Beach County. The stand-alone clinic is located in Loxahatchee at 12989 Southern Boulevard, Suite 203. (Photo: http://photos.prnewswire.com/prnh/20100719/FL36901 ) (Photo: http://www.newscom.com/cgi-bin/prnh/20100719/FL36901 ) Appointments are now...

2010-07-15 07:00:00

DENVER, July 15 /PRNewswire-USNewswire/ -- For the 13th consecutive year, National Jewish Health has been named the #1 respiratory hospital in the nation by U.S. News & World Report. (Logo: http://www.newscom.com/cgi-bin/prnh/20080711/DC27335LOGO) (Logo: http://photos.prnewswire.com/prnh/20080711/DC27335LOGO) "We are gratified to receive this honor once again," said Michael Salem, MD, President and CEO of National Jewish Health. "It is a testimony to our outstanding faculty and...

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2010-07-08 08:39:11

Simple genetic changes make plants suitable for cultivation, but domestication wasn't always quick or easy. Anyone who has seen teosinte, the wild grass from which maize (corn) evolved, might be forgiven for assuming many genetic changes underlie the transformation of one plant to the other. However, a method for exploring the genetics of domestication called Quantitative Trait Locus (QTL) mapping has revealed that only modest modifications are needed to convert a wild plant to a crop plant....

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2010-07-01 07:27:27

Have a lot to do? A good night's sleep will help you remember, study finds When it comes to executing items on tomorrow's to-do list, it's best to think it over, then "sleep on it," say psychologists at Washington University in St. Louis. People who sleep after processing and storing a memory carry out their intentions much better than people who try to execute their plan before getting to sleep. The researchers have shown that sleep enhances our ability to remember to do something in the...

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2010-07-01 07:20:00

It's no secret that Americans tend to throw their support behind a sitting U.S. president when the nation is thrust into a war or other potentially violent conflict with a foreign foe "“ a phenomenon known as the "rally 'round the flag effect." But new experimental psychology research from Washington University in St. Louis is the first to offer compelling evidence that these wartime surges in presidential support represent a collective reaction to a specific human emotion. "It's about...


Word of the Day
negawatt
  • A unit of saved energy.
Coined by Amory Lovins, chairman of the Rocky Mountain Institute as a contraction of negative watt on the model of similar compounds like megawatt.