No. Setting references to null does not have the same result as calling close on the objects. Code that does this will be leaking resources on the database server with possibly dire consequences.
Further code like this will often have major problems in using connection pools. Q. More.
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.