Sentence examples for been difficult with these from inspiring English sources

"Revenue recognition has always been difficult with these kinds of companies," Mr. Ciesielski said.

However, due to the high running cost and delicate growth conditions, the massive growth of long group III-antimonide nanowires in a reasonably low cost has been difficult with these expensive techniques [15, 16].

Unfortunately, the detection of unknown viral pathogens in respiratory clinical material is difficult with these sequence independent virus discovery methods because of low viral load and high background nucleic acids in these samples.

Although it is difficult with these available data to obtain a good estimate of the number of copies, however a comparison with the other 3 retrotransposons would give a tentative copy number for SR3 of between 1,000 and 10,000.

"It has been difficult with Aquilani.

To keep the balance between playing a waiting game on the one hand, and being overly supportive and protective on the other hand is considered to be difficult with regard to these patients [ 13, 27].

Polling is difficult with 10 candidates.

"It's difficult with Margate.

Even though a number of different fixation systems for CSD in rats have been published, reproducible mechanical fixation resulting in consistent loading conditions has been difficult to achieve with these systems.

It's not as if ordering on Amazon is difficult these days, with its one-click checkout and saved payment and shipping information.

Estimation of affinity constants is difficult for these fragments with considerable affinity to the derivatized silica matrix and they are often regarded as nonhits.