We now know a lot more about the mechanisms of how these chemicals act in biological systems.

The second is to look at what psychologists and sociologists can say about the underlying mechanisms for crime.

Although much is known about the mechanisms involved in the disease process, the cause remains unknown.

He also knows about the political mechanisms ("the fee'd policeman") underlying the systems.

Again, little is known about the precise mechanisms and molecules involved in this process of specialization.

Little is known about the neural mechanisms that underlie these individual differences.

Take what we know about the neural mechanisms of language, for example.

Professor James and his colleagues are learning about the mechanisms that underlie heart disease.

Through this mechanism researchers have gleaned important information about the mechanisms behind learning and memory.

We are clearly agreed about the mechanisms which need to take place.