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.
I have a bunch of nclex review books and am taking a 1 week review class. I noticed the review books vary greatly on how long to study before taking the nclex. One book says study 2 hours a day for 2 weeks, and one suggests 3 months of studying. All I know is that I do not feel anywhere near ready right now.