marie ratcliffe accepts 77 allegations of misconduct and poor care .
she worked as a midwife at the scandal-hit furness general hospital .
nmc heard she accepts her conduct ` contributed to the death of ' and/or caused two babies to ` lose a significant chance of survival '
independent inquiry into hospital 's maternity unit found failures led to the avoidable deaths of 11 babies and one mother over nine-year period .