21.  In an unusual cooperative effort, the powers in Hollywood have mobilized to bring digital projection to local movie houses, perhaps within a year or two.

22.  It is undertaking cooperative efforts to reduce emissions in developing countries.

23.  It must be achieved through the cooperative efforts of individual citizens.

24.  It should be more of a cooperative effort.

25.  It was not clear if the video was produced by the Republican Party or by a cooperative effort by the networks.

26.  It was the first cooperative effort by Russian and American aviation experts to assess safety standards in Russian civil aviation.

27.  It would allow cooperative efforts between employees and management in circumstances that the National Labor Relations Board has ruled now violate the law by going around unions.

28.  Jennifer Palmieri, a spokeswoman for the Democratic National Committee, said the party had openly acknowledged its cooperative efforts.

29.  Medical projects such as the one at Ichilov are among the most advanced of the cooperative efforts.

30.  Morales and some banking representatives are expected to announce a cooperative effort to help stem or identify money laundering schemes.