Sentence examples for have difficulty entering from inspiring English sources

And even if the RNA survives a trip through the bloodstream, it can have difficulty entering the target cells.

Because the bacteria are embedded in the lesion, the blood's normal immune defenses have difficulty entering into play; for this reason, certain types of bacterial endocarditis become more chronic and more slowly progressive.

In Wallerstein's most recent opus, "The Unexpected Legacy of Divorce: A 25 Year Landmark Study," co-written with Julia M. Lewis and Sandra Blakeslee, and published in 2000, she shifts her focus to the delayed impact of marital breakup: her somewhat troubled children have become even more troubled adults, who have difficulty entering into and sustaining marriages of their own.

Recent research on inequality and poverty has shown that those born into low-income families, especially African Americans, still have difficulty entering the middle class, in part because of the disadvantages they experience living in more dangerous neighborhoods, going to inferior public schools, and persistent racial inequality.

This project is the headquarters for a diverse national coalition dedicated to advancing employment opportunities for those who have difficulty entering and succeeding in the workforce.

These students, especially those coming from small colleges and minority-serving institutions, have difficulty entering the mathematical sciences, say the two directors.

Despite the advantages of OD compared to piezoelectric detection, OD will have difficulties entering wide field of applications as long as it is not possible to implement compact optical parallel detection for fast in vivo imaging.

The equilibrium absorption may be large, but it may take a long time to reach it because the ion has difficulty entering the resin.

Bloomberg Television, a five-year-old operation providing 24-hour financial news, reaches more than 200 million viewers worldwide but has had difficulty entering American cable television markets.

There was confusion everywhere on Day One, so much so that some of Mr Obama's senior aides had difficulty entering the White House because they had yet to receive their Secret Service clearance.

Even the defence lawyers, who for two years have had minimal access to the defendants, had difficulty entering the courtroom.