Sentence examples for remained a challenge from inspiring English sources

But moving remained a challenge.

Defining the best chemotherapy combination has remained a challenge.

Thus, identification of candidate genes and understanding of salinity tolerance mechanism still remained a challenge.

However, imaging of fluorescence emitting low contrast objects still remained a challenge.

MRI assessment of bone structure has remained a challenge due to its composite biomaterial characteristics.

Even as the methodology matured, there remained a challenge to integrate it into the regulatory process.

However, the implementation of ecological programs has often remained a challenge.

However, establishing a fully integrated interdisciplinary research program remained a challenge.

The prevention of group B meningococcal disease has remained a challenge throughout this period.

However, regeneration of a functional tissue or organ has so far remained a challenge.

However, the frangibility of glass has remained a challenge to be solved.