Autoimmune disease occurs when the body's own immune system acts against itself.

Corruption and a relatively ineffective legal system also act as significant restraints on successful economic development.

In computer science and engineering, a system acts as a computable function.

Either system can act in conjunction with each other or as a stand-alone unit.

Thus the system acts like 247 separate modems operating simultaneously.

Such a system will determine the equipment's health, and act only when maintenance is actually necessary.

This system acts as a protective structure for vital organs.

The system would also act as a trial to select manufacturer.

We have already seen how country-specific systems also act as preventive forces.

The system is also acting as a deterrent to young people making a career in farming.