51.   Physical fitness and sports are increasingly popular, and many parks are ramping up those features.

52.   Ramping up the campaign to encourage people not to drive, mow laws, refuel gas tanks, or cruise in motorboats on hot summer days.

53.   Salon Radio, accessible on its home page, is also ramping up its audio stream of talk and music to augment the online offerings.

54.   Responding to those changes, unions have ramped up their efforts to organize workers in the low-wage service economy.

55.   Some genes suppress cellular activity while others ramp it up, setting the correct balance of chemicals involved in transmitting brain signals.

56.   Sony said it is ramping up production to meet U.S. demand, but component shortages have the company at least one month behind schedule.

57.   Sports video-game producers have ramped up the latest NFL titles with sharper graphics, believable environments and realistic player models.

58.   The Aircraft Mechanic Fraternal Association has also ramped up its organizing campaign.

59.   The airline is also ramping up its feisty ad campaign as it continues to gain a foothold in markets dominated by the big carriers.

60.   The bottlenecks resulted when Boeing ramped up production at the same time it was introducing several new airplane models.