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.
#8: 39%. By the CT 382 definition, the maximum aggregate size is 3/4 and the nominal maximum aggregate size is 1/2. In the November 2011 version of CT 202, nominal maximum aggregate size is defined as one sieve size larger than the first size to retain more than 10%..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.