1.  Human use of language is remarkably skillful.

2.  When it matures, we will find that most of the human use is for socializing.

3.  Although these vaccines are safe for human use, it is not yet clear how effective they are, researchers say.

4.  And as the population rises, so does the human use of forests and the habitation of forested areas.

5.  Analysts said that the challenge for the new venture would be the actual human use of the system.

6.  At least half the human use of antibiotics in the U.S. is unnecessary or inappropriate, says microbiologist Stuart Levy.

7.  About a thousand other acres on the base are to be managed for conservation values, with varying degrees of human use allowed.

8.  All the seeds now under EPA review were approved for human use, but some activists on biotechnology issues insist that more studies are needed.

9.  But it will recover, and most of the time, be smoothly green and soft, inviting to human use, which is what a lawn should be.

10.  But others warn that the Bush announcement also leaves a lot of uncertainty about what types of stem-cell therapeutics might be approved for human use.