n.(Greek legend) a king in ancient Greece who offended Zeus and whose punishment was to roll a huge boulder to the top of a steep hill; each time the boulder neared the top it rolled back down and Sisyphus was forced to start again

Sisyphus and prediction of protein structure
The Myth of Sisyphus: And Other Essays
Sisyphus effect in semiconductor lasers with optical feedback
Sisyphus cooling and amplification by a superconducting qubit
Sisyphus cooling of electrically trapped polyatomic molecules.
The Corporatist Sisyphus: Past, Present and Future
Gravitational sisyphus cooling of 87Rb in a magnetic trap.
Sean O'Donoghue Sisyphus and protein structure prediction
Sisyphus' Sisters: Can Gender Mainstreaming Escape the Genderedness of Organizations?
Knowledge and Innovation for Development: The Sisyphus Challenge of the 21st Century