An index is a measure (often a numerical value) that can be representative of a particular pattern or state of a system. Climatologists monitor several indices, some ocean-based and some atmospheric, ...

Amyloid β protein (Aβ) deposition in the brain is a hallmark of Alzheimer's disease (AD). The fibrillar form of Aβ is neurotoxic, although the mechanism of its toxicity is unknown. We showed th ...