Impediments to performing these examinations persist.
In part, this may reflect the obvious ethical impediments to performing experimental manipulations with invasive species in nature.
In our case the multiple areas of metastatic disease and disease abutting major vascular structures were impediments to performing a traditional metastasectomy with negative margins.
Nonlinear convergence problems in numerical reservoir simulation can lead to unacceptably large computational time and are often the main impediment to performing simulation studies of large-scale problems.
The fact that she is the proud parent of a child with special needs is seen as a credential, not an impediment, to performing a job that seems a little short on real duties anyway.
A major impediment to performing virological field studies in developing nations is the lack of ultra-low freezers as well as the expense and difficulty of shipping frozen samples.
However, the most significant impediment to performing these studies is likely to be the small size of the tumor biopsy.
The experts in school administration were asked about the impediments and opportunities available to perform talent management in elementary schools.
With concerted action, especially by India's government, most of these impediments could be addressed and removed, to free India's cinema business to perform at the level it deserves.
