He has not lost an election since and has turned the frenetic campaign periods into a regular cycle to boost his support.

This indicates a regular cycle of changes which adjust the population to the seasonal conditions.

Many of the local residents move their settlements annually to cope with the regular cycle of flooding.

Regular cycles of printed publication meant that there might have been many competing versions of the truth, but there was a stable, permanent record of each one.

In some glaciers, surges can occur in fairly regular cycles with 15 to 100 or more surge events per year.