Arts & Sciences

Photo by Janet GumpertRemembering to take daily medications can be a challenge, but new research offers tips for strengthening those memories.Doing something unusual, like knocking on wood or patting yourself on the head, while taking a daily dose of medicine may be an effective strategy to help seniors remember whether they’ve already taken their daily medications, suggests new research from Washington University in St. Louis.

Traditional rice cultivation methods practiced in the isolated hillside farms of Thailand are helping preserve the genetic diversity of rice, one of the world’s most important food crops, according to a new study by researchers at Washington University in St. Louis and Chiang Mai University in Thailand.

Data collected during two close flybys of Saturn’s moon Enceladus by NASA’s Cassini spacecraft add more fuel to the fire about the Saturnian ice world containing sub-surface liquid water, according to a report in the July 23 issue of the journal Nature that is co-authored by a planetary researcher from Washington University in St. Louis.

Photo by Randy KorotevLunar geochemist Randy Korotev, Ph.D., a research professor in the Department of Earth and Planetary Sciences in Arts & Sciences, said that there are still many answers to be gleaned from the moon rocks collected by the Apollo 11 astronauts on their historic moonwalk 40 years ago July 20. And he credits another WUSTL professor for the fact that the astronauts even collected the moon rocks in the first place.

An international collaboration of scientists discovers an outburst of very-high-energy gamma radiation from the giant radio galaxy Messier 87, accompanied by a strong rise of the radio flux measured from the direct vicinity of its supermassive black hole. The findings shed new light on the understanding of gamma rays in black holes.

Freshwater fish are an important part of the diet of many peoples around the world, but it has been unclear when fish became an essential part of the year-round diet for early humans. A new study by an international team of researchers, including Erik Trinkaus, Ph.D., the Mary Tileston Hemenway Professor of Anthropology in Arts & Sciences, shows it may have happened in China as far back as 40,000 years ago.

President Barack Obama met this week with Russian Prime Minister Vladimir Putin and President Dmitri Medvedev. While the two sides did not see eye-to-eye on all topics, they did mutually agree to dispose of 34 tons each of weapons-grade plutonium, an initiative started in the 1990s and never completed. It’s a step in the right direction, says an expert on Russian identity at Washington University in St. Louis.

An international collaboration of 390 scientists reports the discovery of an outburst of very-high-energy gamma radiation from the giant radio galaxy Messier 87 (M 87), accompanied by a strong rise of the radio flux measured from the direct vicinity of its supermassive black hole. The combined results give first experimental evidence that particles are accelerated to extremely high energies in the immediate vicinity of a supermassive black hole and then emit the observed gamma rays. The gamma rays have energies a trillion times higher than the energy of visible light. Washington University in St. Louis physicists helped coordinate this cooperative project, the results of which appear in the July 2 Science Express, the advance online publication of the journal Science.

Julie SingerThe shooting death last Saturday of Neda Agha-Soltan has emerged, thanks to video widely circulated on the Internet, as a potent symbol of Iran’s antigovernment movement. In the news media and in private postings across the Web, Agha-Soltan has been memorialized as a victim, a martyr and — perhaps most hauntingly to Western ears — as “Iran’s Joan of Arc.” Yet while fitting in some ways, that comparison says less about either Agha-Soltan or the 15th-century French saint than it does about our own need to make sense of the present through comparison with the past, says Julie Singer, Ph.D., assistant professor of French in the Department of Romance Languages & Literatures at Washington University in St. Louis.

Robert Canfield As the Iranian government continues to crack down on citizens protesting against the recent disputed re-election of President Mahmoud Ahmadinejad, an expert on Iran at Washington University in St. Louis says the Iranian administration wants the legitimacy of having won an election without actually having allowed a true election to take place.