PHILADELPHIA — Reporting in Nature, scientists from Thomas Jefferson University have determined that a single protein called FADD controls multiple cell death pathways, a discovery that could lead to better, more targeted autoimmune disease and can…
DALLAS — Dec. 3, 2010 — Thanks to findings by UT Southwestern Medical Center researchers, individuals with a potentially life-threatening condition predisposing them to blood clots, or thrombosis, might someday receive therapy to prevent the…
A study published in the April 3 issue of Nature solves a longstanding mystery about elephant speeds by clocking the animals at 15 miles per hour. That’s faster than reliable observations of 10 mph top speeds but slower than speculations of 25 mph. But do fast-moving elephants really “run”? Even at fast speeds, it might seem to the casual observer that elephants don’t run. Their footfall pattern remains the same as that in walking, and never do all four feet leave the ground at the same time – a hallmark of running. But biomechanists are finding that an elephant’s center of mass appears to bounce at high speeds. If that turns out to be true, an elephant’s gait meets the biomechanical definition of running.