The retinoids, which are derivatives of vitamin A, are good examples of cell receptor activators, meaning they are able to bind or connect to a specific site on the cell membrane and communicate with the cell. The retinoid receptors play a role in skin cell differentiation, organization, and pigmentation.
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.