1.   After taking the tablets, he noticed some improvement in his energy levels.

2.   Have you noticed any improvement in his work?

3.   Although not all the programs are pure and perfect, experts notice an improvement in overall quality.

4.   But those who occupy the schools each day said that they had noticed little improvement despite the fiscal reprieve.

5.   Frustrated by maddeningly close losses in the first month, the Rockets could not help but notice the improvement since their debacle in New Jersey.

6.   Glenn, too, has noticed an improvement in Simmons.

7.   He would like to instill more discipline, and McKinley fans already have noticed an improvement.

8.   His teammates noticed the improvement.

9.   It takes about four weeks to have a significant antidepressant effect, though you are likely to notice some improvement within two weeks.