  Recent neutron diffraction studies have yielded evidence that, in a
particular cuprate family, holes doped into the CuO(2) planes segregate into
stripes that separate antiferromagnetic domains. Here it is shown that such a
picture provides a quantitatively consistent interpretation of the spin
fluctuations measured by neutron scattering in La(1.85)Sr(0.15)CuO(4) and
YBa(2)Cu(3)O(6+x).
