Sentence examples for a longstanding challenge from inspiring English sources

It also helped feed an increasingly prosperous population, a longstanding challenge in China.

How to react to crackdowns like Mr. Bakiyev's is a longstanding challenge for American diplomacy, here and around the world.

Re "Some Schools Grow and Suffer as System Favors the Small," by Samuel G. Freedman (On Education, Nov. 10): Overcrowding in our schools is a longstanding challenge that deserves attention, but the fundamental issue is that New York City lacks sufficient high-quality educational options.

Train service plans evaluation remains a longstanding challenge in railway operation.

Estimation of interface toughness of thin films deposited on a polymer substrate remains a longstanding challenge.

Reducing band gap and improving electron-hole separation and migration have remained a longstanding challenge.

Malnutrition among young children in Darfur is only one aspect of a broader and longstanding challenge in Sudan.

In 1998, in a similar breakthrough, I.B.M. said it had overcome the longstanding challenge of efficiently laying a very thin layer of silicon under the transistors on chips and insulating them from the thick substrate below.

This paper presents an innovative joining process for the longstanding challenge of connecting two tubes by their ends at room temperature by means of a simple, effective and environmental friendly solution.

The result is, among other things, an exemplary response to a longstanding historians' challenge -- to treat objects, no less than writings, as documents that speak to us from and about the past.

A longstanding technical challenge has been the generation of mice carrying subtle genomic modifications such as point mutations.