The cell-to-cell interactions could provide the cells with positional information.

It is as if the vegetal cells have set up a new boundary region for specifying positional information.

The same positional information is used to specify all the structures in the limb.

This observation may at least provide a clue to the molecular basis of positional information.

This positional information can be amplified with additional data to qualify the identity of the detected track.

If there is no positional information available, a new dead reckoning plot may start from an estimated position.

New to this report, the positional information was used to quantify the distribution of aggregates about the cell surface.

The view was continually being constructed from positional information delivered by the network.

Any occultation of the spacecraft by the planet will supplement this positional information.

High-end instruments now often use positional information from satellite navigation systems.