We were also curious as to whether east/west differences in the structure of the vernacular (see L. Milroy 1980) would be maintained by higher-status speakers.
The only way such a difference could be maintained is if the heat source is the planet itself, not the Sun.
This difference was maintained in subsequent fare rises.
There are many reasons why such spatial differences within nations emerge and are maintained.
Most likely the difference was only maintained in spelling traditions, but had been mostly lost in speech.
The terms are often confused but sometimes a difference is maintained.
This difference from baseline between control and intervention groups diminished over time, but a significant difference in weight was maintained through year 9, the end of the study.
But the class and regional differences - linguistic and cultural - of the Caribbean have been maintained in Britain for at most one generation in their original form.
Therefore, the difference in aid between cereals and the other oilseeds and protein plants must be maintained together with a specific base surface area for maize.
Potential difference between the ionosphere and the Earth is maintained by thunderstorms' pumping action of lightning discharges.