Scaling Relations for the Cosmological "Constant" in Five-Dimensional   Relativity
  When the cosmological "constant" is derived from modern five-dimensional relativity, exact solutions imply that for small systems it scales in proportion to the square of the mass. However, a duality transformation implies that for large systems it scales as the inverse square of the mass. 
Paul S. Wesson and James M. Overduin
physics.gen-ph