For Google as a business, this poses a potentially nontrivial amount of uncollected app revenue, especially from publishers that generate a significant amount of revenue for Apple via the App Store. (sensortower.com)
Nontrivial numbers of teachers also have experience in industry, science, and universities. (educationnext.org)
In examining their work more closely, Si, Lai and Grefe demonstrated that their zero - mass fermions are intimately tied to both strong electron correlations and nontrivial topology. (sciencedaily.com)