References in periodicals archive ?
To ensure that NASA can select the best upgrades for the shuttle program, there must be a pool of high-quality potential improvements,'' the report said.
The upgrades primarily reflect the strength of the incentive to appropriate for the three credits.
The number of upgrades in the fourth quarter of 2006 far exceeded downgrades with an upgrade-to-downgrade ratio of 2.
NEW YORK -- This is an amended version of a press release issued earlier today and contains revised economic figures at end of the second paragraph and an amended amount of rating upgrades in the third paragraph.