Sentence examples for some challenging issues from inspiring English sources

"We've had some challenging issues," Mr. Pease said.

Federal Medicaid officials say that the dispute raises some challenging issues about who is truly needy.

Finally, some challenging issues that need to be solved for future research are discussed.

Still, there are some challenging issues exist in this platform to deliver and share the huge media healthcare data to remote terminals timely with guaranteed QoS support.

This paper reviews the past developments, the state-of-the-art present and the future trends, while highlighting some challenging issues in these areas.

Despite the dramatic innovation in PAV concept development and related technologies, some challenging issues remain, especially safety, infrastructure and public acceptance.

There remain challenging issues, however, such as elephant rides.

Turkey's economy faces some very challenging issues.

With his bold and beautiful canvases, Cy Gavin '16SOA grapples with some very challenging issues.

This paper reviews a few historical landmarks in the development of this concept and then addresses some current challenging issues, such as the development of global and coordinate free version of a standard output-feedback design paradigm, the analysis of problems of stabilization and tracking in the presence of unstable zero dynamics, and extensions to multivariable systems.

In comments to Mr Xi, he said the world was facing "a critical time with some very challenging issues".