His work is concerned principally with theoretical quantum optics, strong field physics and especially quantum information science.

The extracellular domain of any receptor is concerned principally with ligand recognition.

His work is concerned principally with the use of quantum mechanics to predict the properties of materials at the nanoscale.

The impulses were very strong and concerned themselves principally with himself.

It flourished from the 8th to the 11th century, and was concerned principally with monastic life.

I am concerned principally with returning plasm resources to the state.

The spectator: The person observing and sympathizing with the emotionally aroused "person principally concerned"

He was concerned principally with the measurement of individuals, rather than with distributions among populations.

The new association will be concerned principally with quality, with policing and guiding the new cheesemaking industry.

It would, however, be a reductionist theory, concerned principally with simple interactions and far removed from such complicated phenomena as life and thought.