Each absence of a reading indicates an area that the sound could not have come from.

And the absence of marking/number indicates a lower grade bolt with low strength.

The absence of those effects indicate tight limits for velocity differences between light and neutrinos.

The absence of strong changes in their morphology might indicate that they are a generalist species.

The absence of footprints, for instance, might indicate that the thief came by cab.

That would be a mistake, because the absence of marching bodies does not indicate enthusiasm for war.

The absence of all four variables indicates a negative predictive value of greater than 80%.

The relative absence of blood at the site indicated that Martina had been mercifully dead by then.