  We give pointwise gradient bounds for solutions of (possibly non-uniformly)
elliptic partial differential equations in the entire Euclidean space.
  The operator taken into account is very general and comprises also the
singular and degenerate nonlinear case with non-standard growth conditions. The
sourcing term is also allowed to have a very general form, depending on the
space variables, on the solution itself, on its gradient, and possibly on
higher order derivatives if additional structural conditions are satisfied.
