At the heart of A Welcoming Place, a 29-minute video that’s part of a same-named art exhibition on view through March 3 at Austin’s Women & Their Work gallery, is the image of artist/filmmaker Ariel René Jackson wandering the empty streets and parklands of Austin, holding a large black balloon. The prop is meant to suggest a weather balloon, a tool for gathering meteorological data. But what Jackson seeks to measure is something subtler than temperature or atmospheric pressure, and it’s no...