Author: Diana Lutz

Photo by Joe AngelesStephanie Gallitano, a junior chemistry student in Arts & Sciences, works with postdoctoral researcher James Vonesh at the University’s Tyson Research Center.”It was pretty thrilling to discover it,” says Stephanie Gallitano, who performed 12 weeks of research this summer.

Photo by David Kilper / WUSTL PhotoScott (left) and Elbert looking for sticky proteins.Biomedical engineers at Washington University in St. Louis have found a new role for the blood protein serum amyloid P in the body’s response to medical materials, which may help to explain a variety of problems associated with heart-lung bypass, hemodialysis and the use of artificial vascular grafts. Donald Elbert, Ph.D., Washington University assistant professor of biomedical engineering, used advanced protein separations and mass spectrometry to track the proteins on the surfaces of various polymers used in medical devices. The analysis techniques, collectively called ‘proteomics,’ are most often used to study protein expression in cells.

Fish in ponds can be a flowering plant’s best friend, according to WUSTL ecologists.Fish and flowering plants would seem to have as much in common as pigs and beauty soap. But ecologists at Washington University in St. Louis and the University of Florida have found an amazing relationship between the different species that provides a new direction for understanding how ecosystems “hook up.” A team of researchers, headed by Tiffany Knight, Ph.D., Washington University assistant professor of biology in Arts & Sciences, has shown a correlation between the presence of fish in ponds and well-pollinated St. John’s wort (Hypericum fasciculatum, Hypericaceae) at a Florida research station.

Photo by David Kilper / WUSTL PhotoThoroughman (background) and Taylor tracked the moves that people make.Practice makes perfect when people learn behaviors, from baseball pitching to chess playing to public speaking. Biomedical engineers at Washington University in St. Louis have now identified how people use individual experiences to improve performance.

Three Hilltop Campus Arts & Sciences faculty — a biologist, geologist and mathematician — are participants in a new series, “Science on Tap.”

Scientists have performed calculations to show the early Earth’s atmosphere was chock-full of methane, ammonia, hydrogen and water vapor.

Rock evidence indicated to WUSTL scientists that water froze and melted there at some point in Martian history.

ByrnesChristopher I. Byrnes, Ph.D., dean of the School of Engineering & Applied Science and the Edward H. and Florence G. Skinner Professor in Systems Science and Mathematics, has announced his intention to retire as dean after 15 years in the position, effective June 30, 2006, according to Chancellor Mark S. Wrighton.

Alian Wang in the laboratoryA large team of NASA scientists, led by earth and planetary scientists at Washington University in St. Louis, details the first solid set of evidence for water having existed on Mars at the Gusev crater, exploration site of the rover Spirit.

David Kilper/WUSTL PhotoFegley and Schaefer examine a meteorite.Using primitive meteorites called chondrites as their models, earth and planetary scientists at Washington University in St. Louis have performed outgassing calculations and shown that the early Earth’s atmosphere was a reducing one, chock full of methane, ammonia, hydrogen and water vapor. In making this discovery Bruce Fegley, Ph.D., Washington University professor of earth and planetary sciences in Arts & Sciences, and Laura Schaefer, laboratory assistant, reinvigorate one of the most famous and controversial theories on the origins of life, the 1953 Miller-Urey experiment, which yielded organic compounds necessary to evolve organisms.