Asiana has had difficulty adding to the six routes it flies from Seoul to Narita and Haneda, for example.
This inherent weakness and the above mentioned classification difficulty add to the likelihood of publication bias and null findings.
And then technical difficulties added to that nuttiness.
It is possible that sickness absence sets negative social processes in motion and that these difficulties add to the troubles causing the sickness absence in the first place and challenges returning to and retaining work.
Another activity focused on HD patients' typical dislike of surprises because of the increased difficulty it adds to their ability to plan.
Moreover, the increased perceived difficulty usually adds to the school's prestige, which in turn results in more applications.
The degree-of-difficulty only adds to its power.
6 As there is a strong relationship between tinnitus and hearing difficulties, this adds to the distress experienced.
The difficulty in access adds to the isolation and seclusion of Rugey, where there are no policemen and only the village chief is responsible for law and order.
