What do prisons do through the use of rewards and punishments to bring inmates to a law-abiding lifestyle?

The one that prison do through the use of rewards and punishments to bring inmates to a law-abiding lifestyle is: Resocialize
Resocialize is a process to introduce the social value that accepted by most people within a certain culture.
During the prison time, they do this through various socializing boot camps and community service

The device attached to the diving suits is called a diving regulator. This device allows you to breathe under water, however it doesn't breathe for you.

A diving regulator reduces pressurized gas to ambient pressure and delivers it to the diver. The gas used in the diving regulator may be a variety of specially blended gasses or it can just be air.