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 In order for NCCT to process your application in a timely manner your application and all required documentation must be submitted 14 days prior to your anticipated test date. 2  Applications and payments are valid for one year from the date of submission to NCCT.