Sentence examples for the most persistent problems from inspiring English sources

But critics question a system that fails to curb the most persistent problems.

For Thomas Cook the UK has been the source of the most persistent problems in recent times.

But the most persistent problems are caused by industrial pollution from relatively distant sources, especially coal-fired power plants, according to pollution experts.

The manner in which Norilsk disclosed the reorganization and the angry response from shareholders illustrates one of the most persistent problems in Russia's evolution toward a market-driven economy -- poor corporate governance.

The parallels Johnson explores between evolution in technology and in the natural world help to explain one of the most persistent problems in evolution by natural selection: that of intermediate forms.

Professor Abdoulaye Djimdé of Mali will lead a team exploring the genetics of malaria parasites and tracking malaria parasite migration in an attempt to solve one of the most persistent problems scientists have encountered with mosquitoes: their capacity to develop drug resistance.

In responding to crises, the most persistent problem is that of collaboration — people with information and equipment who are unable to share it with those who need it most.

But the most persistent problem with U.S. strategy in places like Somalia and northeastern Nigeria has been the inability of local armies to secure militant-occupied spaces in a lasting way after troops move in to flush them out.

Perhaps the most persistent problem is the failure to recognize how noisy individual economic data points can be, and therefore how it is best to look for consensus evidence rather than focusing on one or two reports.

This highlights the most persistent problem for Russia: its institutional weakness, something that was evident in the dithering over last year's stimulus package, which at 4% of GDP was large by international standards but which was not implemented until late spring because of worries about stoking inflation further.

It is a remedy, he says, to one of the music industry's most persistent problems: the "unbundling" and subsequent devaluation of the album as a result of consumers' ability to download a single track rather than the more profitable full CD.