Since Cycliceconomyconcerns not only twobigsystems of economyand biology but also the enterprises'competition strength, it has specialcharacteristicsandactive factors.
New student test scores released by the U.S. Department of Education last week showed that Washington's fourth-graders made the largest gains in math among big city school systems in the past two years.
It came two years later, in 1999, when the Melissa virus caused big U.S. corporate e-mail systems to collapse, resulting in billions of dollars of losses.