There is transition relief that allows an employer to choose a 12 month Measurement Period for future years, but a one-time six month Measurement Period from July 1, 2013 through December 31, 2013. This will be particularly handy for plans utilizing a calendar year.
There are two major chemical classes of hormones, peptides (proteins) and steroid hormones. Protein based hormones can be divided into three categories: proteins, peptides and amines. Their differences are essential with their size and what they are synthesized from. Peptides are compounds that consist of two or more amino acids; proteins are compounds that consist of 50 or more amino acids; amines are synthesized from the amino acid tyrosine.
Endocrine System: Types of Hormones. Hormones are molecules that carry instructions from more than a dozen endocrine glands and tissues to cells all over the body. Humans have about 50 different known hormones, which vary in their structure, action and response.