Part of a Long-Range Plan The revised agreement, which will take effect on Dec. 31 next year, allows for day-to-day fluctuations at specific plants so long as the aggregate amount of nitrogen discharged remains within prescribed limits.

"This takes us out of the need to worry about day-to-day fluctuations in the commercial paper market," Mr. Nacchio said of the move to draw on the line of bank credit.

The lack of buffers for bundles made the system vulnerable to day-to-day fluctuations in the performance of individual operators, whether because of fatigue, health, mood, absenteeism, substitutions, or intentional slowdowns.

Thus the warming and the movement of water help to give rise to climate, which is immensely complex; and the day-to-day fluctuations which are known as 'weather' are extraordinarily difficult to predict in detail, more than a few hours ahead.

His results "indicate with a high degree of probability that the day-to-day fluctuations in homicidal assaults are random in nature and are not correlated with lunar phase," he wrote in The Skeptical Inquirer.

Climate scientists do not claim to know how to predict day-to-day fluctuations (weather) over the 21st century.

There was little day-to-day fluctuation on that question.

Measuring impacts of taking down fare abuse operations is difficult, because even large swiper rings 'sell' very few fares compared to natural day-to-day fluctuations of the 8.0 million riders on NYC's system due to reasons like weather or special events.

They also called for changes in rules power generators must follow, to avoid severe day-to-day fluctuation in electricity prices.

"His work is a more fine-grained look at how day-to-day fluctuation in stress may play a part in susceptibility to infectious disease by influencing immune function," Dr. Cohen said.