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.
The first step is to contact the board of nursing where you wish to be licensed. Each nursing board sets the guidelines for how frequently nursing candidates can take the NCLEX. Typically, you must wait 45-90 days before a NCLEX retake. While you have them on the phone (or email), ask if you must resubmit your licensure application when you re-register.