Sentence examples for is often challenged from inspiring English sources

This kind of thinking is often challenged.

In turn, the scientific community is often challenged to develop approaches for management of complete ecosystems.

The interpretation of epidemiologic data in both regulation and litigation is often challenged and debated.

The roles of various players, especially the central role of the private sector, is often challenged in the academic literature.

Preclinical characterization of novel nanotechnology-based formulations is often challenged by physicochemical characteristics, sterility/sterilization issues, safety and efficacy.

His world view is often challenged by his Republican rivals, who seek to portray him as a weak leader.

Management of type 1 diabetes (T1DM) is often challenging.

However, identifying the bridge attributes that dictate the statistically different performances of bridges is often challenging.

Meaningful comparison is often challenging given the diversity of data and model structures and formats.

Negotiating road systems is often challenging for me, and sometimes hazardous.

And even if we did, sticking to any single diet is often challenging.