Newsroom Stories

A probe of the upper echelons of the human brain’s chain-of-command has found strong evidence that there are not one but two complementary commanders in charge of the brain, according to neuroscientists at Washington University School of Medicine in St. Louis. It’s as if Captains James T. Kirk and Jean-Luc Picard were both on the bridge and in command of the same starship Enterprise.

Samuel Isaac Weissman, Ph.D., professor emeritus of chemistry who had worked on the Manhattan Project, died Tuesday (June 12, 2007) at 2 McKnight Place at the age of 94. He was a longtime resident of St. Louis.

St. Louis researchers have identified common DNA variations that underlie susceptibility to fever after smallpox vaccination. Their finding is the first to link individual differences written into the genetic code with a vaccine-related complication – albeit a mild one. Most of the eight genetic alterations the scientists identified increased the likelihood of fever after smallpox vaccination. A few, however, reduced fever risk.

Bernard Harris, first African American to walk in space, visits science camp for middle school students at Washington University in St. Louis on Wednesday, June 20, 2007.

Is she safe to hire?Companies with 500 employees or more can expect to be sued for discrimination at least once a year, and the cost to defend the accusation can cost as much as $15,000, even if the allegation is found to be without merit. The Civil Rights Act of 1991 (CRA-91) held great promise for protecting workers from discrimination in the workplace, but the potential cost of litigation makes some firms wary of hiring minorities. A business professor at Washington University in St. Louis has come up with a plan to circumvent potential lawsuits in a way that benefits both employers and employees.

Hong KongIn the days leading up to China’s taking over Hong Kong on July 1, 1997, the media and political pundits were spouting cautionary tales of how China would ruin Hong Kong’s success as Southeast Asia’s financial center. Were the foretellers of doom correct in their outlook? Not at all, says David Meyer, visiting professor of business at Washington University in St. Louis. In fact, ten years later, both Hong Kong and China have reaped the benefits.

Plants on extrasolar planets resembling Earth could be as black as these eggplants.Washington University biology and chemistry professor Robert Blankenship and his colleagues are seeking clues to life on extrasolar planets by studying various biosignatures found in the light spectrum leaking out to Earth. They are speculating on what kind of photosynthesis might occur on such planets and what the extrasolar plants might look like.

Joe Angeles/WUSTL PhotoErik Trinkaus, WUSTL professor of anthropology in Arts & Sciences, holding a Neandertal skull, says the evidence is very convincing that Neandertals and early humans mixed.For nearly a century, anthropologists have been debating the relationship of Neandertals to modern humans. Central to the debate is whether Neandertals contributed directly or indirectly to the ancestry of the early modern humans that succeeded them. As this discussion has intensified in the past decades, it has become the central research focus of Erik Trinkaus, Ph.D., professor of anthropology at Washington University in St. Louis. Trinkaus has examined the earliest modern humans in Europe, including specimens in Romania, Czech Republic and France. Those specimens, in Trinkaus’ opinion, have shown obvious Neandertal ancestry.

What’s beyond the solar system? Astronomers say there are planets similar to ours “out there”.The world is abuzz with the discovery of an extrasolar, Earth-like planet around the star Gliese 581 that is relatively close to our Earth at 20 light years away in the constellation Libra. Bruce Fegley, Jr., Ph.D., professor of earth and planetary sciences in Arts & Sciences at Washington University in St. Louis, has worked on computer models that can provide hints to what comprises the atmosphere of such planets and better-known celestial bodies in our own solar system. New computer models, from both Earth-based spectroscopy and space mission data, are providing space scientists compelling evidence for a better understanding of planetary atmospheric chemistry.

Timber rattlesnakes like this one are turning up in subdivision yards and brush thanks to developers who are invading the snakes’ turf.A researcher for Washington University in St. Louis, colleagues at the Saint Louis Zoo and Saint Louis University are tracking timber rattlesnakes in west St. Louis County and neighboring Jefferson County. They are investigating how developing subdivisions invade the snakes’ turf and affect the reptiles.