Forest managers are faced with the difficulty of promoting multiple ecosystem services (ES) with an incomplete understanding of the complex ways these ES interact.
Recently, however, because of the limited area of the launching pad of the SBC, we have been faced with the difficulty of safely launching large balloons.
Some artists have attempted to create more complex images using this technique but are faced with the difficulty of avoiding undesirable artifacts such as line breaks and T-junctions within their artworks.
However, we are faced with the difficulty of regularity of weak solutions of Eq. (1.1), that is, (y' ) generally does not belong to (H^{2}_{0}) as notified before.
As the war progressed he was faced with the difficulty of juggling resources to maintain both the 2nd New Zealand Division in the Middle East and the 3rd New Zealand Division in the Pacific theatre.
While preparing to film the Fireflash controlled landing sequence, Meddings was faced with the difficulty of having to build an extended, dynamic runway set in the limited shooting space available at AP Films Studios.
The existence of a dual tenure system meant that people could be faced with the difficulty of settling similar disputes under the two systems (Arnold, 1999).
Thus, breeders are faced with the difficulty of introducing polygenic resistance alleles of generally small effect linked to inferior polygenic alleles for agronomic performance if they attempt to incorporate improved genetic resistance from unadapted lines into elite breeding gene pools.
As suggested by the Calman Hine report on cancer management (Calman and Hine, 1995), health authorities in all countries are faced with the difficulty of ensuring equal access to 'high-quality, safe and effective treatment' in a cancer care unit for all patients, irrespective of their social characteristics and place of residence.
