By 1932, scientists had identified the basic structure of an atom: a nucleus consisting of protons and neutrons, surrounded by one or more electrons. This model, however, presented a difficult puzzle. How was it that the nucleus, whose only charged...

A pion (or pi-meson) is one of the particles that carry the strong nuclear force between protons and neutrons (and other hadrons), which binds an atomic nucleus together. Pions are denoted + , - , 0 , depending on charge. Pions were predicted to exist...

In particle physics, pion (short for pi meson) is the collective name for three subatomic particles: π0, π+ and π−. Pions are the lightest mesons and play an important role in explaining low-energy properties of the strong nuclear...

Honolulu and Santa Barbara aren't typical training grounds for fiercely competitive battlefields that characterize L.A.'s commercial real estate industry. But Hawaii-born and UC Santa Barbara grad Jeff Pion has demonstrated that one needn't always play hardball to succeed as a commercial property...

...

At least 471 cases of pet kidney failure have been reported in the 10 days since a nationwide recall of dog and cat food and about a fifth of those pets have died, a veterinarians' information service said Tuesday.The maker of the recalled pet food...

Animal rights advocates are calling on federal food safety regulators and pet food companies to expand a nationwide recall of dog and cat food to include dry varieties, claiming it makes pets sick.The U.S. Food and Drug Administration said Thursday it had no plans to...