41.   Overall air quality is improving, so why bother to do more?

42.   Quality has improved.

43.   Since more of the signal arrives without interference, the sound quality should improve, too.

44.   Slowly, the quality is improving as the winery has sent its winemakers abroad to see how Californians, Italians and the French harvest and produce wines.

45.   Sound quality improves, he said, because resonance is clearer.

46.   Statisticians have long wrestled with the problem of measuring deflation in this industry, where quality is improving rapidly and new products are frequently introduced.

47.   That might be acceptable if quality improved at the same pace.

48.   The consolidation comes at a time when credit quality is improving despite the rising rate of consumer bankruptcies.

49.   The company said its recent data on matters like warranty costs indicated that quality had improved but public perceptions had changed little.

50.   The image quality has improved dramatically, and the text is updated, with links to many museums.