Sentence examples for has proven extremely problematic from inspiring English sources
In general, heterologous expression of the α7-nAChR in non-neuronal mammalian cells has proven extremely problematic, at best producing cell lines with only transient or sporadic functional expression [43].
Developing the primary instrument on Earthcare to get at this information has proved extremely problematic, however.
Touching on one of his signature albums could have proven extremely problematic and, truly, much of Mathers LP II does not match the original's dark energy.
Like it or not, uncertainty has become a prominent mainstay of today's environment, where we are experiencing a multitude of rapidly and constantly shifting external variables, interacting in novel ways and which have proven extremely problematic to portend.
However, it has proven extremely challenging.
Screening has proven extremely effective.
The activity has proved extremely popular.
But "fair use" has proved extremely hard to define.
Reporting from Syria has proved extremely dangerous.
Sharing this message has proved extremely fulfilling to Jones.
Pattern recognition has proved extremely useful in this clinical scenario.
