Indeed, they do not find challenging difficulties in accessing unskilled and semi-skilled manual jobs, as they experience in self-employment and non-manual jobs (Fullin and Reyneri 2011).
The development of drug resistance in HIV infection remains one of the most challenging difficulties in antiviral treatment.
Accumulation of nitrite intermediate in autohydrogenotrophic denitrification process has been a challenging difficulty to tackle.
This challenging difficulty can be surmounted; thanks to the evidential model proposed in [24] and the one proposed in this framework.
It's a new, highly challenging difficulty mode exclusive to the PlayStation 3 version of BioShock.
In-patient rehabilitation enables individuals with the most challenging difficulties to be discharged to successful and stable community living.
Although much progress has been made for the time-delay systems in the adaptive control field, some challenging difficulties still remain.
Calculations of reaction free energy surfaces of charged flexible compounds in aqueous solution are associated with challenging difficulties.
With appropriate treatment in rehabilitation even individuals with highly challenging difficulties can move on to successful and stable community living [ 4, 5].
In noisy and reverberant environments, the problem of acoustic source localisation and tracking (ASLT) using an array of microphones presents a number of challenging difficulties.
