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 Special Research Section will be given to select candidates taking the NCLEX-RN and will take approximately 30 minutes to complete. This section will be administered following your regular NCLEX exam and will not count as part of your NCLEX score. You may take your entire allotted 6 hours to complete the NCLEX. All questions on the NCLEX-RN examination and the Special Research Section are confidential.