One area of concern is the Sahel, a vast semi-arid area south of the Sahara desert.
And so my level of concern is no different than it was a year ago.
Another source of concern is whether MOOCs can be effective in all subject areas.
The most notable area of concern is the central Himalayan Gap, a 600km-long central arc of the Himalayas.
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Also of concern is whether voters will fill in their paper ballots correctly.
Although of concern is the 15% fall in sales from its U.S. business.
Now, the focus of concern is shifting to wireless phones and cramming.
One of the main areas of concern is the property market.
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But of concern is the lack of first-team football his two main strikers Robbie Keane and Clinton Morrison have played so far this season going into the game, amassing just 121 minutes between them.
The focus of concern is not just mergers.
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It raises a question of what, beyond prayers and expressions of concern, is required of us going forward.
Of particular concern is the use of avoparcin as a growth promoter.
Of wider concern is the upgrade of the general infrastructure, including renovation of Brazil's airports, building new public transport, and ensuring there are sufficient hotel rooms.
What is more of a concern is that the banks down here are still holding numerous properties that, when they hit the market, will put further pressure on pricing.
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Of particular concern is the prospect that her head is being filled with the nostrums of one inveterate handler, former Secretary of State Henry Kissinger.
More of a concern is the trend in the majority of the other large global economies: only China has reported a rise in October.
Of particular concern is the evident ascendancy within the Obama administration of Homeland Security Advisor John Brennan.
Of equal concern is that, when it comes to publication of the results, the cashing in process was complicated further at the examination entry stage when the question was asked on the entry forms whether AS results would be cashed in.
Of particular concern is how to keep it from spreading among the millions of visitors expected in Saudi Arabia during this year's Hajj -- a pilgrimage required of Muslims at least once in their lives.
Of particular concern is the prospect that the upcoming high-level plenary meeting of the UN General Assembly from September 14-16 will be used to implement various ideas for international taxes.
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However, it is clearly of concern that it is being used as bomb detection equipment.
Part of their concern is tied to the explosion in the high-risk or junk bond market.
Of particular concern is Senator Hagel's enthusiasm for U.S. disarmament in the nuclear arena.
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Of particular concern is the fact that LOST creates an international taxation regime.
Can you give us a sense of what the degree of concern here is about a potential unilateral strike by Israel?
Any concept of stewardship on the part of the directors gone: the only issue of concern now is dealing for investment gain.
Less important, but still of concern, is the team's offense, which has become stagnated lately as it has depended too much on Anthony.
Of particular concern is the prospect that Team Obama's second-term team will, if confirmed, be even more insistent than their predecessors on engaging Iran.
Of most concern is the Wankhede Stadium in Mumbai, which is to host the final on April 2, but which is still undergoing major renovations.
Of particular concern is the way deleveraging feeds on itself.
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