As with the cases of the other children, the inquiry is paying special attention to the management of Raychel's fluidbalance - in particular, whether she should have received the particular type of fluid and at the rate it was administered.
Most recently, a team from Stanford took the helm of Sequoia to run computational fluid dynamics simulations -- a process that requires a finely tuned balance of computation, memory and communication components -- in order to better understand engine noise from supersonic jets.