Resistance modifying agents are capable of partly or completely suppressing bacterial resistance mechanisms. Corticosteroids are effective in controlling and suppressing symptoms in most cases. Various reasons can be found for eliminating or suppressing political opponents. They act by suppressing gonadal testosterone production and hence circulating testosterone levels. Birth control took place by delaying marriage more than suppressing fertility within it. They work by suppressing gonadal testosterone production and hence circulating testosterone levels. This had the effect of suppressing labor unions. Various species have evolved different mechanisms for suppressing cancer. Some wastes contain chemicals capable of suppressing microbiological growth or activity. It may play a role in promoting sleep and suppressing arousal. Estrogen may play a role in suppressing binge eating. Susima was still in Takshashila, having been unsuccessful in suppressing the rebellion. The battles fought during this period mainly consisted of agents of the Minamoto suppressing rebellions. Both committees were responsible for suppressing counterrevolution but ended targeting each other. King Philip was initially successful in suppressing the rebellion.