Sentence examples for difficult to invoke from inspiring English sources

But a MAC clause is difficult to invoke and must be unexpected and unanticipated.

Generally, allopatric speciation models are difficult to invoke for marine organisms given the limited opportunities for geographic isolation in a continuous environment and an elevated potential for dispersal due to pelagic broadcast spawning [1], [4].

Redistribution of LpPLA2 to HDL is difficult to invoke as an explanation for our results, however, given the nonexistent correlation documented between LpPLA2 mass and HDL.

It is difficult to invoke cis-regulatory differences between parental and hybrid taxa as all elements in the ancient hybrid species are necessarily derived from elements present in the parental species H. annuus and/or H. petiolaris.

To make a strong attack the user has to input a complex key sequence that makes that motion difficult to invoke, thereby achieving a balance between two types of attack.

Despite advances in evolutionary biology it remains notoriously difficult to invoke evolution as an explanation for phenotypic changes in wild populations (Merilä et al. 2001) and wild fish are no exception (Swain and Foote 1999).

Senate Republicans, who pushed for the tougher sanctions, said it would be difficult for Mr. Obama to invoke a waiver, since it could make him look weak on Iran in an election year.

In January, before Trump's inauguration, Schumer told MSNBC's Rachel Maddow that he believed it would be difficult for Republicans to invoke the nuclear option because "there are a handful of Republicans who believe in the institution of the Senate and don't change the rules".

Skyrim struggles with itself to invoke Morrowind, and emulate it, at every possible opportunity but it's difficult to understand why unless one examines Bethesda's relationship with its "core" audience.

Pure Land religion was very approachable in that it eschewed difficult theories and ascetic practices, teaching that in order to achieve rebirth it was necessary only to invoke the name of Amida and dwell on the marks of his divinity.

But Mr Strauss-Kahn could choose to invoke his diplomatic immunity in future, he says - and this could confront the IMF with a more difficult decision.