"One of the biggest challenges for this side is, how do we mentally relax and stay fresh?
"We have got a president who is asleep at the switch on the most pressing financial challenges for this country".
Heeley takes the abstractions of algebra and turns them into games and challenges for this class of year 10 students from London schools.
I'm beginning a book leave, to work on a book with my wife, Sheryl WuDunn, about what we see as one of the great moral and practical challenges for this century — raising the status of women in the developing world.
"These will be the big three challenges for this department over the coming months and years and I look forward to getting back into the office and getting on with those challenges".
Mrs. McDaniel's story offers a sobering look at the challenges for this kind of quest for a treatment, even for someone like her, who had both the means and the connections to get the intricate geography of her cancer charted.
Tim Kelsey, the UK's director of transparency and open data, outlined the three main challenges for this partnership of governments and civil society organisations who are committed to openness: how to get the evidence that openness works; how to share those stories; and how to ensure the partnership itself is sustainable.
"The design challenges for this type of project are formidable," he said, "because there are competing demands on access, parking, security and privacy, so the only time you get a retailer thinking about it is if they have a bull's-eye kind of site".
There are unique challenges for this locavore food distributor: truly "organic" food is rare in Russia; growers, with long memories of Soviet collective farming, aren't much interested in co-ops; and after decades of eating government-allotted groceries, Russians have a knee-jerk aversion to someone else picking their food.
There still remain two challenges for this view.
The main challenges for this application are low outgassing, thermal robustness, and operation in pure (thus quencher-free) noble gas.
