It is becoming increasingly clear that the ECB is playing a key role, though.
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Cairo has mediated between the two sides for years, playing a key role in restarting negotiations.
But there he was in Game 2, playing a key role as the Bulls shook off an ugly loss to tie the series.
Cassano, who battled a heart condition before playing a key role for Italy in Euro 2012 campaign, has signed a two-year deal at Inter.
In my opinion, the global financial crisis has swung matters decisively back in favour of central banks playing a key role in supervising banks.
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Some experts believe autophagy, while playing a key role in keeping cells clean, may also be implicated in the development of neurodegenerative conditions such as Alzheimer's disease.
He was criticized by supporters and teammate Landon Donovan, but Galaxy have prospered this season and have reached the MLS playoffs with Beckham playing a key role.
These campuses enroll 46 percent of all U.S. college students, playing a key role in educating the students who can't afford or can't get into a four-year school.
In March, Oxford University researchers pinpointed variations of a gene that controls dopamine, a brain chemical associated with feelings of pleasure, as playing a key role in smoking addiction.
Ms Sturgeon has been at the heart of government, playing a key role when the SNP won minority control in 2007 and again when it won a majority in 2011.
"Robotics is playing a key role aboard the International Space Station and will be critical in our future human exploration of deep space, " said Michael Gazarik, director of NASA's Space Technology Program.
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The vice-chancellors' organisation Universities UK said the higher education sector understood the current pressures on public spending and was playing a key role in tackling many of the long-term challenges facing the economy.
Raw materials that are plentiful in Africa have been a crucial source of China's own spectacular growth while China is playing a key role in Africa's own economic development, particularly in infrastructure projects.
Mr Rove is widely credited with playing a key role in transforming Bush's image from unruly, hard-drinking, brattish politician's son to popular governor of Texas and then eventual election and re-election as president.
Thanks to this process of tax competition, with havens playing a key role, top personal income tax rates have dropped from an average of more than 67 percent in 1980 to about 42 percent today.
Shaw was outstanding for the British and Irish Lions against South Africa, producing a brilliant display in the second-Test defeat before playing a key role in their win over the world champions in the third Test.
The former Green Beret has also been credited with playing a key role in the capture of Saddam Hussein, and he led the group that killed Abu Musab al-Zarqawi, the leader of al Qaeda in Iraq.
The two founders, Bertrand Piccard and Andre Borschberg, said they chose to come here because the country is known for creating technical innovations and playing a key role in reaching many key milestones in aviation.
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For Ffion Lloyd, Ryder Cup project director at Newport City Council, the tournament is already playing a key role in Newport's continuing redevelopment from a former industrial town to a modern city with a diversified and growing economy.
Marines from 40 Commando took on responsibility for Battle Group North in Helmand Province from last September until this April, where they operated from spartan forward operating bases in the Gereshk and Sangin valleys, often taking part in fierce gun battles with the Taliban, and playing a key role in the recapture of the town of Musa Qala.
The UN are playing a low-key role here, preparing to protect rebels who decide to give up their weapons when a Disarmament Camp opens here in five weeks' time - if they come forward.
As a key ingredient in business strategy and execution, CSR is playing a central role in helping corporations to be seen as leaders.
One key implication of a consumerized, empowered workforce is that IT leadership in the 21st century will mean playing the role of a product manager for employees, and an innovation advocate in the boardroom.
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