For those who were there and for us at home, there were advances and high points it may have been difficult to previously imagine.
"I've gone through a number of start-up companies," said Mr. McAdam, "and this has been more difficult than previously".
But it appears more difficult than previously believed for private industry to raise the billions of dollars needed to build and operate a shuttle replacement, Ms. Dasch said.
"In the post-9/11 world, we've found it has, until very recently anyway, been more difficult than previously to get the common reader to take a chance on new writers," said Jonathan Galassi, the president and publisher of Farrar, Straus & Giroux, which publishes Jonathan Franzen and Nadine Gordimer, as well as Marilynne Robinson.
"Clearly doing business in some emerging markets is proving to be more difficult than previously expected," said Michael Kovacocy, an analyst with Daiwa Institute of Research, who rated the stock "sell".
Both seem more difficult than previously assumed as the necessity of providing available and missing evidence is required to bring about the integration of translational molecular biological data to clinical processes such as the cancer classifications proposed by the American Joint Cancer Committee AJCCC).
Numerical tests demonstrated the ability of our approach to handle workload imbalances arising from a non-uniform particle distribution, differences in particle types, or heterogeneous computer architecture which was difficult with previously proposed methods.
A new study suggests that, despite best efforts, it may be even more difficult than previously thought to remain gluten free, even for those with a keen awareness of how to successfully keep gluten out of a diet.
Although the club had experienced difficult times previously, having dropped into the second tier of Scottish football twice in the 1970s, they had bounced straight back up on both occasions.
