Product Description: The introduction of quantum field theory methods has led to a kind of “revolution” in condensed matter theory. This resulted in the increased importance of Feynman diagrams or diagram technique. It has now become imperative for professionals in condensed matter theory to have a thorough knowledge of this method...read more

Product Description: In The Breakthrough, Dr. Fredric C. Hartman paints a compelling picture of emotional pain and its context within the human mind. Set in the dramatic backdrop of a therapy session as a stage play, featuring Dr. Hartman as the psychologist and Human Consciousness itself as "the patient" this is a practical guide for anyone locked within the grip of troubling memories and pain...read more