Sentence examples for difficulties establishing from inspiring English sources

However, the specific requirements for host cell biology to support viral replication makes the establishment of such a culture system naïvely improbable, as evidenced by longstanding difficulties establishing suitable systems for the study of replication by hepatitis C virus (Jones and Mclauchlan 2010) and human papillomavirus (Schiller et al. 2010).

AQA, which had been trying to draw up a new specification as part of the government's revised qualifications, pulled out saying there were too many difficulties establishing grade boundaries and finding examiners with enough experience.

For those campaigning for economic transparency, like the Task Force on Financial Integrity and Economic Development, it seems the same intractable problems of corporate secrecy and difficulties establishing beneficial ownership also play out in the human rights arena.

Difficulties establishing new rights-of-way for power lines and pipelines increase the need to locate installations in shared corridors.

His wit and congeniality were legendary even as a youth, so he had few difficulties establishing himself as a popular figure in Regency literary circles.

"I had made the decision to cross the Atlantic," Idriss wrote to me in an e-mail, "because I encountered difficulties establishing myself as a scientist in the U.K. and, even worse, was unable to continue my medical education.

There has been difficulty establishing routes, and many smaller cities are much busier airports.

"Post is experiencing extreme difficulty establishing secure voice calls," a classified dispatch said in January 2010.

He does not agree, but he has had difficulty establishing his case in the scientific literature.

Native kings and visiting European captains had difficulty establishing order in these types of frontier towns.

"The reason we have difficulty establishing a peer review system has to do with a kind of an Asian culture.