  Real blow-ups and more refined "zooms" play a key role in the analysis of
singularities of complex-analytic differential modules. They do not change the
underlying topology, but the uniform structure.
  This suggests to revisit the cohomology theory of differential modules with
help of a suitable new notion of uniform sheaves based on the uniformity rather
than the topology.
  We also investigate the $p$-adic situation (in particular, an analog of real
blow-ups) from this uniform viewpoint.
