Beset by calls for reform from angry shareholders and a dismal stock price on Wall Street, the beleaguered New York Times Company began to fight back last week, saying it had 'no intention' of dismantling an ownership system that gives the Ochs-Sulzberger family absolute power over the media giant.For the past century, the family has controlled the company but sharks are circling as the paper struggles to adjust to the internet and achieve market value commensurate with its place as one the world's most influential newspapers.