Some federal agencies or grants may require that recipients make their underlying data available to others. (add more)
Some federal agencies or grants may require that recipients make their underlying data available to others. (add more)
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== Journal Policies ==
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PNAS has adopted "UPSIDE", which is the Uniform Principle for Sharing Integral Data and Materials Expeditiously. That standard establishes that the "author's obligation is ... to release data and materials to enable others to verify or replicate published findings," and that the "upside" is that this "keeps science honest." Moreover, PNAS expressly rejects "a requirement that the material be used for research purposes."<ref>http://www.pnas.org/content/101/11/3721.full</ref> The UPSIDE principles further state that "once something is published it should be freely shared '''by everyone'''."<ref>http://www.pnas.org/content/101/11/3721.full (emphasis added).</ref>