21.   And the process has to be monitored to assure the breakdown is occurring as projected.

22.   And where demonstrations against economic hardship have occurred, as in Zimbabwe recently, the government, rather than some sinister foreign hand, has been the target.

23.   Another tense moment occurred as the Palestinian negotiators prepared to enter the Bethlehem Peace Center for the evening session.

24.   As multilayered figures occur and pitches get stacked up, the sonorities shimmer, as if you are hearing not just harmony but the aura of harmony.

25.   Because there are sensory, physical and psychological changes that occur as a natural part of aging, allow yourself more time to accomplish tasks.

26.   Both occurred as Columbia lifted off early Friday and either could have forced the shuttle crew to attempt an unprecedented, risky emergency landing in Florida or West Africa.

27.   A number of recent studies show that building strength can sharply reverse the loss in muscle and bone density that occurs as the body ages.

28.   All this is occurring as members of the Republican-controlled Senate and the Democratic-controlled Assembly prepare for their re-election campaigns.

29.   But Burns, assistant secretary of state for Near Eastern Affairs, declined to speculate whether a massacre of civilians occurred, as Palestinians have alleged.

30.   But those numbers are open to question, particularly because a lot of the liquidation occurred as companies bought back their own shares or were taken over in mergers.