11.   Alterations were necessary due to changing weather patterns.

12.   And all the investigators knew was that the arsonist seemed to react to media coverage and surveillance, changing his patterns to avoid detection.

13.   Another may be that the birds are changing migratory patterns.

14.   As a result, the report provided little reason for the Federal Reserve to change its pattern of more aggressive but less frequent tightening of credit.

15.   As the chip is exposed to the various gases that make up an odor, different polymers expand, changing the pattern of conductivity on the chip.

16.   As to how much a particular commercial changes prescribing patterns, that is almost impossible to tell.

17.   Ask for suggestions to correct your impression or change the pattern.

18.   Because Columbia, citing privacy concerns, refuses to provide names of its doctor-investors, it is difficult to analyze whether investments change admitting patterns.

19.   A case in point is anticipating and preparing for changing traffic patterns on the World Wide Web.

20.   A huge proportion of the budget goes on debt repayment and salaries, and there is no easy way of changing this pattern.