The parathyroids produce a hormone called parathyroid hormone (PTH). PTHPTH-parathyroid hormone raises the blood calcium level by: 1  breaking down the bone (where most of the body's calcium is stored) and causing calcium release. 2  increasing the body's ability to absorb calcium from food.THPTH-parathyroid hormone raises the blood calcium level by: 1  breaking down the bone (where most of the body's calcium is stored) and causing calcium release. 2  increasing the body's ability to absorb calcium from food.
DN = Diameter Nominal. The term Diameter Nominal refers to the internal diameter of a pipe. Together with the nominal pressure rating and the materials class, all dimensions of a piping line, e. g. flange dimensions, are defined by indicating the nominal diameter. Steel is often not specified, but assumed as material.
In the August 2003 version of CT 382, nominal maximum aggregate size is defined as one sieve size smaller than the maximum aggregate size. The maximum aggregate size is defined as the smallest sieve size that requires 100% passing. For example, in the following gradation:or instance, nominal maximum aggregate size is usually a way to define the size of a mix when you're referring to it. So when you're saying 1/2 HMA people generally know what that means. Where you might see a problem is in drawing the maximum density line to help with designing a mix's gradation.