Sentence examples for is of doubtful validity from inspiring English sources

Below that value any stopping-power formula is of doubtful validity, even though it is certain that most of the energy is still being lost to electronic states down to a few eV of energy.

These larger units are of doubtful validity and restricted utility.

The prediction of properties on the basis of an orderly extrapolation appears to be of doubtful validity, however, in this heavy-element region of the periodic table.

The set of dependencies can also be used to filter cases to be classified, eliminating spurious cases, and cases for which the classification is likely to be of doubtful validity.

The supposed Miocene pelican Liptornis from Patagonia is a nomen dubium (of doubtful validity), being based on fragments providing insufficient evidence to support a valid description.

They also noted that the orders were of "doubtful constitutional validity".

Accordingly, word classes such as adjective and preposition, which presuppose the existence of the noun phrase and prepositional phrase, are of equally doubtful validity.

According to Crook, Burges "supported his roofs with a considerable body of examples of doubtful validity; the truth was that he wanted them for their architectural effect".

The original investigators will be contacted to confirm missing data or to check values of doubtful validity.

The Government of India rejected the firman, terming it a "legalistic claim of doubtful validity".

Another issue is the doubtful validity of the risk factors listed in Table 4 in various local contexts that the WDF projects operate in.