If you are going to read scientific journals which are dense in technical terms, you should really get started on GMATPill RC Pill
first before you read the articles. This is going to help you tremendously in sifting through all of that reading.
Otherwise, you'll be reading a lot and a lot, getting information (which is what school taught you) but not really comprehending it.
Read a little bit, then get right into SC. I'm assuming here that RC is your weakest and so therefore should be your first focus.
Yes, RC is my weakest area. And thanks for your suggestion. I'll first get started on
RC and then go through scientific articles. I'll let you know if I face any further prob.