Embargo Watch

Keeping an eye on how scientific information embargoes affect news coverage

Doing the right thing: PNAS decides not to embargo paper that had appeared as a preprint

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pnas juneOn July 8, following a bit of a clumsy episode involving the Proceedings of the National Academy of Sciences (PNAS), I urged journals not to embargo papers that had already appeared as preprints.

A week later, this arrived in my inbox:


Due to prior news coverage, PNAS is publishing the following study without an embargo.

A link to the published article may be found below.

Distribution of pairs of consecutive prime numbers

Researchers report a conjecture which explains why pairs of consecutive prime numbers, unlike individual prime numbers, are unevenly distributed among subsets of integers known as reduced residue classes, and show that the conjecture yields good agreement with numerical data.

Naturally, I wondered whether the “prior news coverage” — in places like Quanta — was actually of the paper when it was a preprint. Turns out, PNAS tells me, it was.

Hey now.


Written by Ivan Oransky

July 18, 2016 at 3:13 pm

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