Sentence examples for has ever been established from inspiring English sources

None of these supposed risks has ever been established in scientifically valid studies.

In the United States, no formal censorship has ever been established; control over printed matter has always been exercised through the courts under the law of libel.

No system of inspection or maintenance has ever been established for the games' facilities, which cost billions of dollars, because of infighting between departments, Tehelka reports.

Officially Whitehall has always been "open-minded" on the existence or otherwise of alien life, merely saying that no evidence for it has ever been established.

Sudden inflammation of the heart was given as the reason, but there was no evidence of drugs or poison, and no cause of death has ever been established.

The etymological method of investigation, which ultimately depends upon the recognition of presumed cognates from related languages, seems to have failed because no clear and certain relationship between Etruscan and any other language has ever been established.

What followed in the essay was a grumpy version of the history of the "third world" after 1945, in which Helman and Ratner lamented that the claims of "self-determination" made by colonised peoples had ever been established as a major principle for organising international affairs.

The third CDR of the heavy chain (H3) displays wide variety in its length and amino acid sequence, and no canonical structures have ever been established for it [1], [2], [3].

Because of the prevailing notion that the Amazon was a counterfeit paradise — and because no stone city had ever been found — most established archeologists had long ago abandoned the remote Xingu.

One of the most striking aspects of our results is that the primary area of predicted suitability in the United States, the Everglades, is the only place that the pythons have ever been found to have established populations.

"To the best of my knowledge, no work has ever been undertaken to establish exactly what exists behind or below this mysterious annexe".