Science & Technology

Whether it’s for money, marbles or chalk, the brains of reward-driven people keep their game faces on, helping them win at every step of the way, even when there is no reward at stake, suggests a surprising Washington University in St. Louis brain scan study published online today by the journal Proceedings of the National Academy of Science.

The sudden shortage of a nuclear weapons production byproduct that is critical to industries such as nuclear detection, oil and gas, and medical diagnostics was the focus as a House Science and Technology panel heard testimony today from a physics professor at Washington University in St. Louis.

Richard E. Norberg, PhD, retired professor and longtime chair of physics in Arts & Sciences at Washington University in St. Louis and a pioneer in using nuclear magnetic resonance as a practical analysis tool, died April 20, 2010, at Bethesda Dilworth in St. Louis. He was 87.

Genetic variations among moray eels don’t show any geographic patterning, apparently because a long-lived larval form called a leptocephalus maintains gene flow among populations. With geographic isolation off the table, it is difficult to understand how the morays diversified into many species.

A class at Washington University taps directly into the astonishing motivational power of the mashup of computers, gaming and popular culture. In the class, the students develop applications, popularly known as “apps,” for the iPhone and iPad, the digital tablet that was released to consumers April 3.

Nearly all animals make sounds instinctively, but baby songbirds learn to sing in virtually the same way human infants learn to speak: by imitating a parent. Now, an international team of scientists, led by the School of Medicine, has decoded the genome of a songbird — the Australian zebra finch — to reveal intriguing clues about the genetic basis and evolution of vocal learning. 

A team of psychologists at Washington University that include graduate student Jonathan Jackson have found an intriguing possibility that personality and brain aging during the golden years may be linked.

Outgoing, gregarious people who fill their lives with deep, meaningful conversations may have found at least one key to a happier life, suggests research from Washington University in St. Louis and the University of Arizona.

A team led by physicist Ken Kelton, PhD, is building an electrostatic levitation chamber that will be installed at the Spallation Neutron Source at the Oak Ridge National Laboratory. Kelton and his colleagues are particularly eager to see what the new instrument will tell them about glass transition, “the deepest and most interesting unsolved problem in solid-state research.”

As one of the “generic geologists” on a dig called the Dakhleh Oasis Project, Jennifer Smith, PhD, associate professor of earth and planetary sciences in Arts & Sciences, was asked to sample the alum from ancient mines and to determine whether it could be the source of the blue in the “blue painted pottery” found at sites dating from the New Kingdom.