Main-memory multicore transactional systems have achieved excellent performance using single-version optimistic concurrency control (OCC), especially on uncontended workloads. Nevertheless, based other protocols, such as hybrid OCC/ locking and variations multiversion (MVCC), are reported to outperform the best OCC systems, with increasing contention. This paper shows that implementation choice...

objective(s): calcineurin (cn) is a main phosphatase and a critical regulator of cellular pathways for learning, memory, and plasticity. the fk-506 (tacrolimus),a phosphatase inhibitor, is a fungal-derived agent and a common immune suppressant extensively used for tissue transplantation. to further clarify the role of cn in different stages oflearning and memory the main aim of this study was t...