Sentence examples for often problematical from inspiring English sources

Business heroes in the movies are rare, and often problematical.

First, setting a benchmark often proves problematical.

Developing lepidopteran microsatellite DNA markers can be problematical, as markers often exhibit multiple banding patterns and high frequencies of non-amplifying "null" alleles.

And purchasing a watch on eBay could be problematical, because it is often unclear who the seller is.

This last is particularly problematical in that it often does not manifest itself until later generations.

However, the use of weight loss as a prognostic factor remains problematical since it is often not well defined and subject to bias (Morgan et al, 1980; Rowland, 1990).

"This is particularly problematical in the social sciences, when the basic unit of observation is so often that political, free-willed, unpredictable character, the individual human".

It may prove to be problematical.

Then there was that problematical list.

But then came the evening's two problematical premieres.

Why revisit a problematical show like "St. Louis Woman"?