This mechanism apparently evolved to help the body preserve a vital source of energy.
Money from the maintenance fund will provide a vital source of income for future conservation work on the site.
These meals are a vital source of fruits, vegetables, and other fresh and nutritious foods for our Nation's young people.
Migrant work in Russia is a vital source of income for many nationals from Tajikistan, the poorest former Soviet Republic.
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Fast forward to today and we see that the issuance of paper money has become a vital source of government power.
The SBIC program was a vital source of funding in the early days of venture capital, and continues to play a significant role.
It says church buildings - and congregations - are a vital source of social services, a location for community activities, and the focal point for tourism.
Twitter has emerged as a vital source of this real-time information, with more than 100 million users sending 250 million tweets every day on virtually every topic.
When the backwash from the Asian crisis sent Vietnam's GDP plunging from 8.2% in 1997 to 5.8% in 1998, these remittances became a vital source of stability.
But there is another vital dimension: the combination of lost earnings from poultry and the loss of a vital source of protein could also be devastating for Africa.
For one, in a predatory global market, we would be eliminating a facility that constitutes a vital source of financing for the commercial industrial base for foreign sales.
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And in this ambition Afghanistan's big neighbour, Pakistan, itself angry and disillusioned with the West, and still a vital source of support and sanctuary for the Taliban, might think it has an interest in encouraging them.
Fish is a vital source of protein and is about to become ever more important as the world's population increases to 9 billion by 2050, said the World Bank's vice president of sustainable development, Rachel Kyte.
To help us reach that goal, we are working hard to maximize our opportunities related to shale exploration and drilling, electricity generation and distribution, continued development of renewable energy and alternative fuels as well as a continued support for coal, which will remain a vital source of energy for Ohio.
Second, and more important, the vital oil sector needs America as a source of both technology and investment.
The retention of emergency stroke services at Ipswich Hospital is "vital", according to a senior health service source.
The best firms monitor their vital suppliers closely and buy parts from more than one source, even if it costs money.
And Hancock and his descendants served as a constant source of conversation between my father and me, a vital link between us when, class-wise, and in every other wise, each year placed us farther apart.
"Although migrant workers are to a large extent adversely affected by the slow growth in the global economy, remittance volumes have remained remarkably resilient, providing a vital lifeline to not only poor families but a steady and reliable source of foreign currency in many poor remittances recipient countries, " agrees Hans Timmer, director of the bank's Development Prospects Group.
"The integrity of our supply chain is vital and we are working closely with our customers to try to establish the source of the contaminating material, " the company said.
They said Ratner would keep medical equipment in his hotel room, which he used to monitor Jackson's vital signs when the singer was asleep or "under, " as one source put it.
Ruppersberger said it was vital that bipartisan efforts were made to "follow the facts wherever they go" but reiterated that the source of the information was not known.
The country's vital cashew nut crop provides a modest living for most of Guinea-Bissau's farmers and is the main source of foreign exchange.
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