Making such a change in the architecture of the national airspace system would be a major effort and would require substantial changes in the way the current system is run.
The changes in the financial system will have profound consequences for the way Japanese companies are run.
Margaret Smith, the Liberal Democrat education spokeswoman, said that changes in the qualification system in Scottish secondary schools would not address the problem.
The underlying changes in the climatic system could not be reversed over any time scale relevant for decision-makers, limiting the efficacy of traditional recovery measures.
It seems improbable that such sweeping changes in the economic system would not be somehow reflected in the political system.
Such considerations may explain why next week Mr Brown will not be making any firm announcements about changes in the tax system.
More education may be needed before large-scale changes in the voting system.
"Because of these changes in the educational system, we have lost our ability to understand the traditional ways, " says the Com-munity Academy's Chen.
But he thinks that there is a lot wrong with the economy, and that changes in the tax system can help to mend it.
For years reformers have called for changes in the hukou system.
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However, the government also has another way to help deal with the housing problem - changes in the planning system to make it easier to build new houses.
Tech luminaries and legal experts remembered Aaron Swartz as a technology and political activist at the South By Southwest conference Friday and called for changes in the legal system that prosecuted him.
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And also it gives you an opportunity, and I think Jeffrey will seize this, to say something about prison life, prison reform, changes needed in the system and to have that voice heard - so I think it cuts both ways.
While recent changes in the financial system have made it more stable most of the time, they may also have increased the possibility that it will be excessively unstable in really bad times, as well as increasing the chances that really bad times will occur.
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For much of his 15 years in the House, and 10 years in the Senate, Wyden has pursued incremental changes in the health care system.
The service pack incorporates all of the smaller patches and updates that precede it, but also gives Microsoft an opportunity to add new features, or make significant changes in the functionality of the operating system.
The bill has ideas for changes in other parts of the system, too.
The changes in the vote registration system were introduced in an attempt to combat electoral fraud.
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But there have been important changes in the way the system treats the Conservatives and Labour, too.
The missing element is accountability, according to Nancy Parrish of Protect Our Defenders, one of the groups urging changes in the military justice system.
When the analysis is extended to younger workers, who will be more affected by recent changes in Medicare financing, the system becomes only slightly more progressive.
"The experiences of these young men and women have highlighted the need for fundamental changes in care management and the disability system, " the report read.
The youth say their concerns about recent changes in financial aid, the educational system, healthcare reform, affirmative action, terrorism, unemployment and economic stability should be taken seriously.
The new system stems from changes in the way people book their holidays.
The group, which includes many top universities, says changes to the funding system in England have meant students who wanted to go to a good university and had the right grades have not been able to.
Apple changes the system in industries it enters, as well as doing good disruptive and incremental product development.
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Mr Wells said he had brought the debate to the assembly due to proposed changes to the system in Wales.
But I think even with radical changes in our technology, the system itself is going to just inevitably change more slowly.
During his speech, Obama touted changes in the health-care system already passed in his month-old administration as part of The American Recovery and Reinvestment Act.
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