Sentence examples for haven't been established from inspiring English sources

The other important reason is that the present is not the key to the past, if the modern rules of the game haven't been established.

"It's produced in a laboratory using the same technology used to grow tumours, and the safety and hazards associated with the production process haven't been established.

"Though the facts of the case haven't been established, there is a fear that the whole Roma community across Europe is being put on trial for something which might or might not have happened in one family," she says.

As the questionnaire was developed especially for this research the reliability and validity haven't been established yet.

Standardized infection prevention practices have not been established.

The causes of this weight reduction have not been established.

However, authentic porcine ESCs have not been established until now.

Moreover, workflows using freely available packages have not been established yet for cost minimization.

Although several associations were determined, definitive conclusions have not been established as to their precise role.

However, their contributions to nitrate contamination in Tanzanian groundwater have not been established.

2) Uniform standards for demand response pricing and incentives have not been established.