Unification of Decoupling Limits in String and M Theory Chris D. A. Blair ,1Johannes Lahnsteiner ,2Niels A. J. Obers ,2,3and Ziqi Yan2 1Instituto de Física Teórica UAM/CSIC, Universidad Autónoma de Madrid, Cantoblanco, Madrid 28049, Spain 2Nordita, KTH Royal Institute of Technology and Stockholm University, Hannes Alfv? ens v?g 12, SE-106 91 Stockholm, Sweden 3Niels Bohr International Academy, The Niels Bohr Institute, Copenhagen University, Blegdamsvej 17, DK-2100 Copenhagen ?, Denmark (Receive...