1.   However, many question over the effectiveness of Market mechanisms remain.

2.   But though the basic mechanism inside has remained unchanged, the design of the oven casing has undergone a major facelift.

3.   Conduct remedies require strong enforcement mechanisms to remain effective, and the states were having trouble finding mechanisms they were certain could work.

4.   He added, though, that it would be good if some sort of filtering mechanism remained in place.

5.   Nevertheless, the fundamental mechanisms of power remain rooted in the old methods of bureaucratic control.

6.   Still, the treatments are controversial in some quarters, and its underlying mechanisms remain a mystery to western medicine.

7.   While many mechanisms of memory remain a mystery, scientists think memories are somehow stored in billions of brain cells and called up as electrical impulses.

8.   While it had been known that limas could do this, the exact mechanism had remained unclear.

9.   He refused to say for how long the mechanism will remain on hold but hinted that it would not be reactivated for until the second half of next year.