Liver failure resulting from hepatitis B (HBV) represents difficult-to-treat conditions.
But in a game, you can represent difficult wounds exactly.
Benfica certainly represent difficult opponents, as Newcastle can testify to from the quarter-finals.
It's no wonder then that ever since I started my writing career on J17 magazine in 1995, I've been representing difficult girls, who reach critical mass during those turbulent teen years.
The flipside is that both Hodgson and Gerrard felt compelled at one point to stress the importance of not getting too carried away and being lulled into the mistake of thinking England had already done the hard part when Ukraine still represent difficult opponents in their own right.
As it was, Chelsea were assigned Juventus, but will go into Group E comforted by the knowledge that, even if the Serie A winners represent difficult opponents, there is a certain leeway given the moderate record of the other two sides, Shakhtar Donetsk and FC Nordsjaelland.
These problems arise from the area of chemical engineering, and represent difficult nonconvex optimization problems, with continuous and discrete variables.
The vast majority of these errors could be explained by high task load in the intersections, as they represent difficult tasks.
In the concluding discussion a set of design dimensions are presenting, representing difficult trade-offs that needs to be handled during the design process.
An important aspect is that these rules must be focused on limit conditions that typically represent difficult validation aspects (which are typically the source of robustness problems), such as: Null and empty values (e.g., null string, empty string).
