1.   Few studies are such ambitious efforts to explain the entire set of gladiators in a political society.

2.   Ambitious efforts to build a new base of individual members rather than organizations have produced more conflict than success.

3.   Ambitious efforts to build a new core membership have produced more conflict than success.

4.   An ambitious effort to create a detailed map of part of the universe has borne its first fruit, discovering the most distant of all quasars.

5.   And in June it will mount its most ambitious effort yet, an exhibit depicting the history of neon art.

6.   And it is an uncommonly ambitious effort for a state, rather than the federal government, to undertake and finance.

7.   As extensive as this ambitious effort is, there are some bounds.

8.   Both power centers are outraged by his ambitious efforts to shake up the status quo and undermine their own privileged positions.

9.   Both ambitious efforts got mixed reactions, mostly having to do with whether there would be money where the presidential mouth was.

10.   But even as many border crossings remain closed here and political tensions persist among the three governments, an ambitious effort is under way to rehabilitate the area.