 FACT: The Russian space station is an absurdity in itself:  initiating a rotation to accommodate artificial gravity would in  reality threaten the structural integrity of such a pronged modular  craft, and spinning the station before docking would be unpractical,  as it renders a normally tricky docking to be nearly impossible  since the docking ports are on the external rotating pods.  Furthermore, a rotating station would need its docking area along  the axis of rotation, plus the docking vessel would have to match  that rotation, and match its center of gravity along the docking  point approaching along the stations axis of rotation.