What is the measurement scale for years?

What is crystallographic data processing and structure determination? what are the physical infrastructures of x-ray crystallographic structural biology? who can tell me detailed information? any would be appreciated. in advance!

According to the ahdi, use a _ when joining numbers or letters to form a word or phrase, or abbreviation

Anurse is monitoring the laboratory values of a client who is receiving heparin. which of the following values should the nurse report to the provider? a. platelets 300,000/mm3 b. hematocrit 45% c. pt 11 seconds d. aptt 50 seconds