That is in itself a difficult expression, however, especially if used on purpose by those who oppose the modern European school and, for whatever reason, wish to stop it from going ahead.
"And that difficult choice," he concludes, almost triumphantly, "is sometimes finding a way to grapple with a difficult expression of an idea using one's heart and one's courage". Later, out of mild curiosity, I tap these words of Champion's into Google Books and press "search".
Mai pen rai is often a difficult expression to translate.
We successfully expressed P14K through genetic modifications according to N-end rule and analyzed the mechanism for its difficult expression.
The strategy used for P14K expression in this study may be useful for the heterologous expression of other difficult expression proteins.
Furthermore, these strategies, which promote the over-expression of the instable P14K in E. coli, might also be helpful for the heterologous expression of other difficult expression proteins.
Our results are not only useful for clarification of the role of P14K involved in the NHase maturation, but also helpful for heterologous expression of other difficult expression proteins.
Footnote explains the difficult American expression.
Although studying changes in PP5 activity is difficult, the expression of PP5 in mammalian cells can be suppressed by treatment with antisense oligonucleotides or small double stranded molecules of RNA.
