I work with CTAB extraction and I've noticed that is better to make the buffer without PVP and only add the PVP when you need the buffer So I take 20ml CTAB and add 0.8mg PVP. Mix it and I use it not longer than 1 week Hope this helps.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.