Cable is still by far the dominant source of multichannel television in cities.

Shot noise is the dominant source in most receivers.

Today, although fishing remains an important industry, increasingly tourism is becoming the dominant source of employment for the local people.

During the early phases, farming was the dominant source of income.

The Star is a community newspaper and the dominant source of retail advertising in the region.

Nevertheless, "throughout the 1950s radio still remained the dominant source of broadcast comedy".

During the 1990s, direct government support once again became the dominant source of feature film funding.

"He's an ambient President rather than the dominant source of noise, and that seems to work in this environment."

Since the 1950s, tourism has become the dominant source of employment and income in the area.

If the dominant sources of variation are identified, however, resources for change can be focused on them.