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.
If you do not test within these dates you will have to reregister and repay the examination fee. The ATT contains your authorization number, candidate identification number and an expiration date. You need the ATT to: Schedule an appointment to take the NCLEX examination.
1 If you have registered with Pearson/Vue, the BON will deem you eligible to take the NCLEXÂ®. 2  Then Pearson/Vue will send you an email verification giving you the authorization to test (ATT) and instructions on scheduling the test. 3  Upon receiving the ATT, you will have 75 days to take the exam.