Science & Technology

Poet and Nobel Prize-winning chemist Roald Hoffmann will use examples from chemistry, poetry, painting and ceramics to make a case for an underlying unity of science and the arts.

Scientists have known for years that abnormal activity involving a brain chemical called dopamine is somehow connected to the movements and vocalizations, or tics, associated with Tourette syndrome. Now neuroscience researchers at Washington University School of Medicine in St. Louis have found brain activity in these patients is abnormal during memory tasks as well.

BrentA large team of researchers, including a computer scientist at Washington University in St. Louis, has effectively completed the genome sequence of the common laboratory brown rat, Rattus norvegicus, This makes the third mammal to be sequenced, following the human and mouse.

Some of the world’s top scholars on modern human origins will gather March 26 at Washington University in St. Louis for the last of a four-part series of “Conversations” on key issues that will affect the future of the university, the community and the world. Arts & Sciences is sponsoring the “Conversations,” which are free and open to the public, as part of the university’s 150th anniversary celebration. The “Modern Human Origins” Conversation will be held from 10 to 11:30 a.m. in Graham Chapel.

Ann Nguyen chose a risky project for her graduate studies at Washington University in St. Louis. A university team had already sifted through 100,000 grains from a meteorite to look for a particular type of stardust — without success. In 2000, Nguyen decided to try again. About 59,000 grains later, her gutsy decision paid off. In the March 5 issue of Science, Nguyen and her advisor, Ernst K. Zinner, Ph.D., research professor of physics and of earth and planetary sciences, both in Arts & Sciences, describe nine specks of silicate stardust — presolar silicate grains — from one of the most primitive meteorites known.

Anthrax is nasty stuff. An environmental engineer at WUSTL uses smart catalysts in his device that can detect the presence of airborne anthrax and disable it.An environmental engineer at Washington University in St. Louis with his doctoral student has patented a device for trapping and deactivating microbial particles. The work is promising in the war on terrorism for deactivating airborne bioagents and bioweapons such as the smallpox virus, anthrax and ricin, and also in routine indoor air ventilation applications such as in buildings and aircraft cabins.

To meet design and cost changes, industry and government are considering clockless computing.Computing royalty, including Ivan Sutherland, the father of computer graphics, and Wesley A. Clark, the designer of the world’s first personal computer, will gather at a computing symposium Friday, March 26th, 2004, from 1:00-5:30 p.m. at Washington University in St. Louis’s Whitaker Hall Auditorium. As part of the University’s 150th anniversary of its founding, participants will honor time by contemplating how computing can evade time as the industry prepares to go clockless.

A team of scientists reports a major advance in seqencing large genomes.A team of scientists that includes a Washington University in St. Louis biologist, has evaluated and validated a gene-enrichment strategy for genome sequencing and has reported a major advance in sequencing large genomes. The team showed a six-fold reduction of the effective size of the Zea mays (maize or corn) genome while creating a four-fold increase in the gene identification rate when compared to standard whole-genome sequencing methods.

March Science & Technology Tip Sheet

Washington University faculty and staff make news around the world. Following is a representative sampling of media coverage from clippings and electronic sources. For the most recent clips, see the Clips Index