The phrase "a central role on" is not correct; it should be "a central role in." You can use it when discussing the importance or significance of something within a particular context or situation.
Example: "The new policy plays a central role in improving employee satisfaction."
Alternatives: "a key role in" or "an essential role in".
When President Bush named Rod Paige to be his education secretary six months ago, he chose a man from the Texas trenches, the superintendent of Houston schools who, it was said, would spread the practices that had raised achievement levels in his home state to the rest of the country, enjoying a central role on one of the new president's showcase issues.
The Golgi apparatus plays a central role on the one hand in the anterograde transport of newly synthesized proteins to the plasma membrane and to intracellular organelles, on the other hand for retrograde traffic from endocytic and recycling pathways [ 1, 2].
Artists must have a central role on the question of climate change.
Commerce has always played a central role on this east-west axis.
Several players wanted assurances that they would have a central role on their team before committing.
It occurs on deep wounds and burns only and plays a central role on fibroplasia related pathologies.
Our results highlight the physiological effects of IL-7 on energy homeostasis and provide evidence for a central role of IL-7 on food intake regulation through a direct effect on ARC cells.
Morgan, who can play in a central role or on the wing, began his career with Colchester before moving on to Reading and Luton.
Based on the solution analytical viewpoint, dominant mineral which played a central role depended on the pH of solutions in the early stage of weathering: the mineral was plagioclase under a slightly acidic condition (pH 5), and biotite under more acidic conditions (pH 4 1).
General Practitioners (GPs) play a central role in the on-going management of patients with CVD and are a valuable source of information regarding how to self-manage.
Mr. Gordon played a central role regarding immigration on behalf of the Jewish Agency after rising to prominence there in the 1970's.
