Alzheimer’s disease affects more than seven million Americans, slowly erasing memory and thinking skills. For decades, doctors have relied on painful spinal taps, expensive brain scans, and imperfect ...

Plant and Soil, Vol. 367, No. 1/2, Part I: Special Issue: Pedogenesis, nutrient dynamics, and ecosystem development: the legacy of T.W. Walker and J.K. Syers (June 2013), pp. 163-182 (20 pages) ...

Extended summer getaways can be tough on your houseplants. But with a few smart tricks, you can keep your indoor jungle hydrated and healthy while you're off soaking up the sun. David lives in ...