Sentence examples for a difficult evolution from inspiring English sources

But it has been a difficult evolution, for a number of reasons.

The station, which is now partially assembled and circling overhead with three astronauts aboard, has had a difficult evolution since President Ronald Reagan first ordered it built in 1984.

In a broad sense, the worst immigrant rioting ever seen in Italy — shocking here not only because of the anger of migrants, some of whom clashed with local residents, but also for the attacks on them by townspeople — cuts to the heart of the nation's difficult evolution from a place of emigrants to one of immigrants.

The slogan will have to be matched with some substance on policy if Labour is to succeed in the difficult evolution from effective opposition to credible government-in-waiting.

It's true that evolution can seem a difficult concept and that most resources on evolution are targeted towards pupils at secondary schools.

Evolution is a difficult subject for students, with well-documented confusion about natural selection, tree thinking, and genetic drift among other topics.

The ultimate goal is to contribute to assess how well evolution is being taught at school and disseminated in more informal contexts, in order to design better solutions and possible new directions to prevail over the innate causal factors that make evolution such a difficult subject to comprehend.

The evaluation of respiratory mechanics through an esophageal balloon can improve the evolution of a difficult weaning.

For Charles Darwin, eye evolution was a difficult problem to explain in terms of his evolutionary theory, and he devoted an entire chapter of "On the Origin of Species" to the discussion of the difficulties of his theory in which organs of extreme perfection like the eye figure prominently (Darwin 1872).

Evolution theory is a difficult concept to teach in a biology class because teachers fearing confrontation with students often avoid controversial concepts such as evolution (Nickels et al. 1996).

Given this, one might think that it would prove difficult for evolution to settle upon an optimal signalling system.