Arts & Sciences

As our brains mature, we tend to use the red regions more frequently for these certain tasks, using the regions represented in blue less.Children activate different and more regions of their brains than adults when they perform word tasks, according to investigators at Washington University School of Medicine in St. Louis. Reporting in the journal Cerebral Cortex, the researchers say those changes in regional brain activity from childhood to adulthood may reflect the more efficient use of our brains as we mature.

This is *C. elegans*. Its genome was thought to have been completed until a WUSTL computer scientist found otherwise.A computer scientist at Washington University in St. Louis has applied software that he has developed to the genome of a worm and has found 150 genes that were missed by previous genome analysis methods. Moreover, using the software, he and his colleagues have developed predictions for the existence of a whopping 1,119 more genes.

Mars Exploration Rover mission scientists remind us that the amazing success of the rovers *Spirit* and *Opportunity* is a harbinger for the day when humans inhabit the Red Planet.The major drawback to a human mission to Mars is preparing for the one to two years of radiation and microgravity exposure that astronauts must endure. While that is a large hurdle, enabling technologies are emerging that should be able to make this goal a reality over the next couple of decades, and America should go for it. That’s the theme of a report from NASA’s 2002 Astrobiology Academy appearing soon as a paper in Acta Astronautica.

Carinne Blank has a method she uses to date ancient life forms that could be helpful for specimens from Mars.A geologist from Washington University in St. Louis is developing new techniques to render a more coherent story of how primitive life arose and diverged on Earth – with implications for Mars.

Male Bahamas mosquitofish (left) chasing a female (right).A biologist at Washington University in St. Louis has shown that for some fish species, females prefer males with larger sexual organs, and actually choose them for mating. That does not exclude males with an average-sized sex organ, called a gonopodium. These fish out-compete the larger-endowed males in a predator-laden environment because they have a faster burst speed than the males with larger genitalia, thus avoiding predators and staying in the mating game.

Washington University’s Kingsbury Ensemble will conclude its 2004-05 season with works of Antonio Vivaldi (1678-1741) and Johann Sebastian Bach (1685-1750) — today’s most popular composers of the Baroque era. The performance begins at 7:30 p.m. Saturday, May 15, in Holmes Lounge, Ridgley Hall. Tickets are $5 to $15.

Distinguished Alumni Award recipients are John Dubinsky, Flint Fowler, Henrietta Freedman, Diane Jacobsen & William Pollard; the Dean’s Medal goes to John Biggs.

Chemistry Professor Karen L. Wooley is principal investigator of a program that has received funding of $12.5 million for five years.

John Heuser, “Roddy” Roediger & Norman Schofield have been honored; the AAAS recognizes leadership in scholarship, business, the arts & public affairs.

The award was given for their outstanding academic performances and diversity of courses taken at the University.