terminal fragment (1â34) of PTH, and a second antibody reacts with the C-terminal fragment (39â84) of PTH. In the first step of the assay, the PTH molecules are captured on magnetic nanoparticles coated with anti-N-terminal PTH antibodies (Fig. 2a). Since the combined surface area of the magnetic particles is large, this capture phase goes very
The principal square root function f (x) = âx (usually just referred to as the square root function) is a function that maps the set of non-negative real numbers onto itself. In geometrical terms, the square root function maps the area of a square to its side length.
The current version of the radical symbol is similar to the symbol for long division with a check mark at the front. A small number, known as the index, sometimes appears at the front of the radical above the check. This small number represents which root to take from the radicand.