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.
Allow plenty of time for your application/registration to be processed. You cannot schedule your examination until you receive your Notice To Schedule (NTS). You must schedule your appointment at least five days in advance, but it is recommended to schedule your examination 45 days in advance.