There are two models of protein folding that are currently being confirmed: 1  The diffusion collision model, in which a nucleus is formed, then the secondary structure is formed, and finally these secondary structures are collided together and pack tightly together.
ATT Validity Dates. 1  Each ATT is valid for a period of time specified by the BON/RB (the average length of an ATT is 90 days). 2  Once the BON/RB has declared you eligible to test and you receive your ATT, you must test within the validity dates on the ATT.
You can determine if you have been issued a license number on our website, after testing, by visiting the Health Provider Lookup Screen. License numbers are generally issued within 1-3 business days after successfully passing the NCLEX examination. License numbers are not available on the same day you take the examination.