Credit (Washington University School of Medicine/ Matthew J. Ellis)
Mammograms of estrogen-receptor positive breast tumors before and after 16 weeks of aromatase inhibitor therapy. The top images: a tumor that responded to the treatment and regressed. The lower images: a resistant tumor that stayed about the same size.
Algae, that very same stuff that turns aquarium walls and backyard fences green, are also a potent source of energy, and hold significant potential as a clean, renewable fuel source. Algae were first investigated as a source of energy back in the 1970’s when high gas prices prompted an interest in alternative energies and the US Department of Energy created the Aquatic Species Program. That program was discontinued in 1996, but as oil costs have continued to rise and energy independence has reemerged as a national priority, researchers around the world, and many right here in St. Louis, are again focused on the potential of algal biofuels.
For the first time since the Civil War, elk are back on Missouri soil.
The 34 elk spent three months in quarantine in Kentucky before arriving today in southeast Missouri. They'll be housed temporarily at the Peck Ranch Conservation Area, which is part of the elk restoration zone.
The elk's arrival was delayed from April 30 so conservation officials could complete all the necessary health tests.