Risk which is common to an entire class of assets or liabilities. The value of investments may decline over a given time period simply because of economic changes or other events that impact large portions of the market.
Properties of the alpha-helix. 1  The structure repeats itself every 5.4 Angstroms along the helix axis, ie we say that the alpha-helix has a pitch of 5.4 Angstroms. Alpha-helices have 3.6 amino acid residues per turn, ie a helix 36 amino acids long would form 10 turns.
XVampireX more. This article discusses helix and forward helix ear piercings. A helix piercing is most commonly called the top ear piercing or the ear cartilage, and the forward helix is the small piece of skin at the very front of the helix that attaches the ear and the temple together. The forward helix is also a cartilage piercingâyou can see images of this below.