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Genetic variation within the endocannabinoid system may explain why some survivors of childhood adversity go on to become dependent on marijuana, while others are able to use marijuana without problems, suggests new research from Washington University in St. Louis.

A team of engineers, led by Washington University's Lihong Wang and postdoctoral researcher Junjie Yao, found that by genetically modifying glioblastoma cancer cells to express BphP1 protein, derived from a bacterium commonly found in soil and water, they could clearly see tiny amounts of live cancer cells as deep as 1 centimeter in tissue using photoacoustic tomography.MORE
​At team at Washington University's School of Engineering & Applied Science found tomato plants that received zinc oxide and titanium dioxide nanoparticles better absorbed light and minerals, and the fruit had higher antioxidant content.MORE
​Now in its second year, the Suren G. Dutia and Jas K. Grewal Global Impact Award is given to Washington University in St. Louis-based entrepreneurs who use technology to solve real-world problems.  A total of 19 teams entered this year's competition, and the winner of the $50,000 prize, announced Nov. 2, is Applied Particle Technology. MORE
A study in the Nov. 2 issue of Proceedings of the National Academy of Sciences is the first to fully document the demographic impacts of West Nile virus on North American bird populations. Data from bird-banding stations shows more species were hit than suspected, and half of those have yet to recover.MORE
At 7 p.m. Thursday, Nov. 12, Edward C. Stone, PhD, project scientist and public spokesman for the twin Voyager spacecrafts, will visit the campus of Washington University in St. Louis and describe the probes' 36-year journeys across the solar system. Stone will describe spectacular flybys of Jupiter, Saturn, Uranus and Neptune and Voyager I's departure from the solar system. The lecture is part of the Robert M. Walker Distinguished Lecture Series hosted by the McDonnell Center for Space Sciences in Arts & Sciences.MORE

Washington University's Alexander Barnes, a chemist, physicist, electrical engineer and molecular biologist rolled into one, just received a $2.3 million grant from the National Institutes of Health to develop a nuclear magnetic resonance spectrometer that can determine the structure of molecules very quickly and at room temperature. His first target is a drug called bryostatin that may flush out HIV hidden in the chromosomes of our own cells.

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