We present estimates for the 3D Ising model on the cubic lattice, both
regarding interface and bulk properties. We have results for the interface
tension, in particular the amplitude sigma0 in the critical law sigma =
sigma0*t**mu, and for the universal combination R_ = sigma*xi**2. Concerning
the bulk properties, we estimate the specific heat universal amplitude ratio
A+/A_, together with the exponent alpha, the nonsingular background of energy
and specific heat at criticality, together with the exponent nu. There are also
results for the universal combination fs*xi**3, where fs is the singular part
of the free energy.Comment: Contribution to the Lattice 97 proceedings, LaTeX, 3 pages, 1 figure,
uses espcrc2.sty, epsfig.st
