Carry-on baggage has become such a distraction that it is difficult to perform my other safety responsibilities during boarding.
In any case, regional anesthesia is not always possible, Dr. Wood said, noting, for instance, that it is difficult to perform and not always effective for operations on the digestive tract.
Since it is difficult to perform an in-depth independent analysis on the thousands of shareholder issues up for vote, many such investors rely heavily on the recommendations of shareholder advisory firms like Institutional Shareholder Services and Glass, Lewis & Company.
Hence, it is difficult to perform a completely fair comparison.
Because the Internet is becoming increasingly complicated, it is difficult to perform mining network classification accurately.
It is difficult to perform the general process of inner products in such a high-dimensional space.
It is difficult to perform an objective comparison due to the discrepancy of available and feasible public data.
In many practical situations, it is difficult to perform direct measurements or calculations of the external forces acting on an existing vibrating structure.
This is inadequate because qualitative descriptions do not precisely describe the effect of different source and deployment scenarios, and it is difficult to perform optimization using this methodology.
It is difficult to perform the planning manually because it involves evaluating large number of combinations and solving complex geometric reasoning problems.
However, for ELSTs, it is difficult to perform IVI in pre-CPA or profound shock patients because of peripheral vein collapse.
