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Latest Washington University Stories

2009-08-11 10:17:06

Accumulating carbon and nitrogen stable isotope data from fossil humans in Europe is pointing towards a significant shift in the range of animal resources exploited with the spread of modern humans into Europe 40,000 years ago.Both the preceding Neandertals and the incoming modern humans regularly and successfully hunted large game such as deer, cattle and horses, as well as occasionally killing larger or more dangerous animals. There is little evidence for the regular eating of fish by the...

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2009-07-17 12:35:00

A lunar geochemist at Washington University in St. Louis says that there are still many answers to be gleaned from the moon rocks collected by the Apollo 11 astronauts on their historic moonwalk 40 years ago July 20. And he credits another WUSTL professor for the fact that the astronauts even collected the moon rocks in the first place. Randy L. Korotev, Ph.D., a research professor in the Department of Earth and Planetary Sciences in Arts & Sciences, has studied lunar samples and their...

2009-07-17 09:08:00

Researchers at Washington University School of Medicine in St. Louis have shed new light on a process that fixes breaks in the genetic material of the body's cells. Their findings could lead to ways of enhancing chemotherapy drugs that destroy cancer cells by damaging their DNA. Using yeast cells, the scientists studied protein molecules that have an important role in homologous recombination, which is one way that cells repair breaks in the DNA double helix. The process in yeast is similar...

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2009-07-08 10:37:10

Graduate student Alexis Webb describes her experiences in partnering with fellow neuroscience students to create a program to help neuroscientists communicate with the publicStudying brain science in the 21st century requires crossing traditional boundaries, and with that comes the need for an interdisciplinary approach.The fields of psychology, neurobiology and biomedical engineering all approach research questions from different perspectives, each with a unique way of trying to understand...

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2009-07-02 13:35:00

High-resolution radio, gamma-ray observations reveal site of relativistic particle acceleration in galaxy M 87An international collaboration of 390 scientists reports the discovery of an outburst of very-high-energy (VHE) gamma radiation from the giant radio galaxy Messier 87 (M 87), accompanied by a strong rise of the radio flux measured from the direct vicinity of its super-massive black hole.The combined results give first experimental evidence that particles are accelerated to extremely...

2009-06-29 14:24:31

Pig heart valves used to replace defective aortic valves in human patients failed much earlier and more often than expected, says a report from cardiac surgeons at Washington University School of Medicine in St. Louis. This is the first report to demonstrate this potential problem, the researchers say.Between 2001 and 2005, four out of 106 patients with the pig valves implanted in the aortic position developed severe impairment after less than four years, and the patients required surgery to...

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2009-05-16 09:45:00

Of the 92 naturally occurring elements, add another to the list of those that are superconductors.James S. Schilling, Ph.D., professor of physics in Arts & Sciences at Washington University in St. Louis, and Mathew Debessai "” his doctoral student at the time "” discovered that europium becomes superconducting at 1.8 K (-456 °F) and 80 GPa (790,000 atmospheres) of pressure, making it the 53rd known elemental superconductor and the 23rd at high pressure.Debessai, who...

2009-05-14 13:53:04

Material scientists at Washington University in St. Louis have developed a technique for a bimetallic fuel cell catalyst that is efficient, robust and two to five times more effective than commercial catalysts. The novel technique eventually will enable a cost effective fuel cell technology, which has been waiting in the wings for decades, and should give a boost for cleaner use of fuels worldwide.Younan Xia, Ph.D., the James M. McKelvey Professor of Biomedical Engineering at Washington...

2009-05-12 09:17:33

Drug combination could lower risk of fracture by 30 to 50 percent in women, according to Saint Louis University research Taking a DHEA supplement combined with vitamin D and calcium can significantly improve spinal bone density in older women, according to a new study from a Saint Louis University scientist and his colleagues at Washington University. "The results of our study are very promising. Similar studies have demonstrated much smaller benefits for bone than we found. However, calcium...

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2009-04-08 10:10:00

Tutoring children in and after school isn't new, but how much does it really help in critical areas like reading? Rigorous new research from Washington University in St. Louis shows significant gains from a national service program that trains experienced Americans to help low-income children one-on-one in urban public schools. The central finding: Over a single school year, students with Experience Corps tutors made over 60 percent more progress in learning two critical reading skills...


Word of the Day
mundungus
  • A stinking tobacco.
  • Offal; waste animal product; organic matter unfit for consumption.
This word comes from the Spanish 'mondongo,' tripe, entrails.