Science & Technology

Photo by David KilperLarry A.Taber, Ph.D., (left) the Dennis and Barbara Kessler Professor of Biomedical Engineering, and Philip Bayly, Ph.D., the Hughes Professor of Mechanical Engineering, employ a microindentation device to measure the mechanical properties of embryonic hearts and brains. The researchers are examining mechanical and developmental processes that occur in the folding of the brain’s surface, or cortex, which gives the higher mammalian brain more surface area (and more intellectual capacity) than a brain of comparable volume with a smooth surface.

Image courtesy of the BBCWhat good is longevity if you end up looking like this? WUSTL biologist Stan Braude, working on a book about the critters, says the naked mole rat is being studied for its tendency to live a long life.Who would have thought that the secrets to long life might exist in the naked, wrinkled body of one of the world’s ugliest animals? Probably not many, but current research may be leading seekers of the Fountain of Youth to a strange little beast — the naked mole rat.

Engineers at Washington University in St. Louis are finding common ground between the shaping of the brain and the heart during embryonic development. Larry A.Taber, Ph.D., the Dennis and Barbara Kessler Professor of Biomedical Engineering, and Philip Bayly, Ph.D., the Hughes Professor of Mechanical Engineering, are examining mechanical and developmental processes that occur in the folding of the brain’s surface, or cortex, which gives the higher mammalian brain more surface area (and hence more intellectual capacity) than a brain of comparable volume with a smooth surface.

David Kilper/WUSTL PhotoOlsen is studying the genetics of two types of clover to determine why one type is cyanogenic (toxic) and the other is not.That clover necklace you make for your child could well be a ring of poison. That’s because some clovers have evolved genes that help the plant produce cyanide — to protect itself against little herbivores, such as snails, slugs and voles, that eat clover. Other clover plants that do not make cyanide are found in climates with colder temperatures. So, in picking your poison, er, clover, ecology and geography play important roles. A plant evolutionary biologist at Washington University in St. Louis is trying to get to the bottom of this botanical cloak and dagger tale.

David Kilper/WUSTL Photo(L-R) Larry Taber, postdoctoral researcher Gang Xu and Philip Bayly examine brain and heart cells to learn something of the mechanics involved in brain folding.Engineers at Washington University in St. Louis are finding common ground between the shaping of the brain and the heart during embryonic development. Larry A.Taber, Ph.D., the Dennis and Barbara Kessler Professor of Biomedical Engineering, and Phillip Bayly, Ph.D., Hughes Professor of Mechanical Engineering, are examining mechanical and developmental processes that occur in the folding of the brain’s surface, or cortex, which gives the higher mammalian brain more surface area (and hence more intellectual capacity) than a brain of comparable volume with a smooth surface.

Ramanath Cowsik, Ph.D., professor of physics and director of the McDonnell Center for the Space Sciences in Arts & Sciences, received the 2007 M. P. Birla Memorial Award from the M. P. Birla Institute of Fundamental Research and the M. P. Birla Planetarium in Kolkata, India. The biennial award is given for exceptional achievement in the fields of astronomy, astrophysics, particle physics and allied disciplines.

In a continuing effort to make science accessible to the general public, the Department of Physics and University College, both in Arts & Sciences, are offering their annual fall Science Saturdays lecture series. Beginning this Saturday, Sept. 29, four faculty members will describe their research on successive Saturdays.

David Kilper/WUSTL PhotoRaymond E. Arvidson, Ph.D., James S. McDonnell Distinguished University Professor, and chair of earth and planetary sciences (left), and Dong Shuwen, Ph.D., vice president of the Chinese Academy of Geological Sciences, sign an agreement between Arvdison’s department and the Academy.The Department of Earth and Planetary Sciences in Arts & Sciences and the Chinese Academy of Geological Sciences (CAGS) have signed a research agreement that will involve collaboration on a number of research thrusts, travel between the two institutions, and eventually student exchanges that could lead to some Chinese students attaining doctorates from Washington University in St. Louis. The agreement was signed Sept. 18 at a ceremony and reception held on the third floor of the Earth and Planetary Sciences building.

In science, it’s best to be good, but sometimes it’s better to be lucky. Ecologist Owen Sexton, Ph.D., professor emeritus of biology in Arts & Sciences, had just completed a census of snakes at a conservation preserve northwest of St. Louis when the great flood of 1993 deluged the area, putting the preserve at least 15 feet under water. The flood provided Sexton with a rare opportunity: His collected data and the flood would combine to make “the perfect study” of how an area rebounds from natural disaster.

Sexton observes a flooded Marais Temps Clair.In science, it’s best to be good, but sometimes it’s better to be lucky. Ecologist Owen Sexton, professor emeritus of biology in Arts & Sciences at Washington University in St. Louis, had just completed a census of snakes at a conservation preserve northwest of St. Louis, when the great flood of 1993 deluged the area, putting the preserve at least 15 feet under water. The flood provided Sexton with a rare opportunity: his collected data and the flood would combine to make “the perfect study” of how an area rebounds from natural disaster.