Background A 79-year-old woman was referred for evaluation of her painful and swollen joints. She had a medical history of congestive heart failure, renal insufficiency and peptic ulcer disease. For ...

Apatite crystal under a microscope at Paul Fitzgerald’s laboratory at Syracuse University. It was extracted from a granitic rock at the Cauca River Canyon in Colombia. The linear features observed are ...

If these phages are exposed to the target surface--hydroxyapatite crystal in this case--and then washed off, those left behind are the ones that tend to stick. Cloning the survivors and repeating in ...

Apatite [formula: Ca5(PO4)3(F, Cl, OH)] is a mineral we should all be familiar with—our teeth are made of the OH-endmember apatite! For geologists, apatite is a well-known mineral because it commonly ...