Borland International Inc, the Scotts Valley, California software publishing company whose shares are traded in London, has lost its chief scientist, Rob Shostak, whom it acquired with Ansa Corp: Shostak has agreed to continue to consult for Borland, but he’s off to start his own software development company with funding from a venture capital consortium; Shostak was one of the two designers of the Paradox database system but says his new firm’s developments will not compete with current Borland products.