Latest Washington University in St. Louis Stories
Every new imaging technology has an aura of magic about it because it suddenly reveals what had been concealed, and makes visible what had been invisible.
Smoking, the leading preventable cause of mortality in the United States, continues to disproportionately impact lower income members of racial and ethnic minority groups.
It’s one of life’s special moments: a child finds a fat caterpillar, puts it in a jar with a twig and a few leaves, and awakens one day to find the caterpillar has disappeared and an elegant but apparently lifeless case now hangs from the twig.
The prevailing model for planetary accretion, also called fractal assembly, and dating back as far as the 18th century, assumes that the Solar System’s planets grew as small grains colliding chaotically, coalescing into bigger ones, colliding yet more until they formed planetesimals.
Here’s a riddle: What’s the difference between a tick and a lion? The answer used to be that a tick is a parasite and the lion is a predator. But now those definitions don’t seem as secure as they once did.
It’s no secret that battlefield trauma can leave veterans with deep emotional scars that impact their ability to function in civilian life.
In 2011 — to the consternation of women everywhere — a systematic review of randomized clinical trials showed that routine mammography was of little value to younger women at average or low risk of breast cancer.