Sentence examples for a class of challenging from inspiring English sources

Rather it emerged from my desperate attempts as a naïve new business studies teacher to engage a class of challenging 14 and 15-year-olds.

Bilevel optimization problems are a class of challenging optimization problems, which contain two levels of optimization tasks.

The precatalyst dramatically improved the yield of a class of extremely challenging cross-coupling reactions between functionalized heteroaryl chlorides and electron-deficient phenols.

This in turn holds promise for more predictable criteria for the licensure of a class of products that are extremely challenging to develop but represent an increasingly important component of modern medical practice.

But this idea is challenged by a class of examples, in which environment seems to make a difference.

AGPs are a class of molecules whose study has been particularly challenging.

The singers, a baritone and soprano seeking the roles of Marcello and Musetta in Mr. Luhrmann's Broadway production of "La Bohème," set for December, have been told by him to improvise lines in English rather than sing them in Italian, no small acting challenge for a class of performers more comfortable demonstrating their range up and down the scales.

Lipophilic compounds represent a class of bioactive molecules that pose unique challenges for solubilization and delivery to tissues and cells in aqueous environments.

We have a once-empowered class of people challenging powerful bullies.

"Easy A" classes don't count; think of challenging and comprehensive classes in which you performed well.

The advent and increasing implementation of user configured and user oriented systems structured around the use of cloud configured information and the Internet of Things is presenting a new range and class of challenges to the underlying concepts of integration and transfer of functionality around which mechatronics is structured.