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The Purple Earth Hypothesis (PEH) is an astrobiological hypothesis, first proposed by molecular biologist Shiladitya DasSarma in 2007, [1] that the earliest photosynthetic life forms of Early Earth were based on the simpler molecule retinal rather than the more complex porphyrin-based chlorophyll, making the surface biosphere appear purplish ...
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The Gold Medal Award for Distinguished Archaeological Achievement is awarded by the Archaeological Institute of America in "recognition of a scholar who has made distinguished contributions to archaeology through his or her fieldwork, publications, and/or teaching." It is the institute's highest award.
[7] [8] [9] Many archaeology journals also show a gender citation gap: articles written by women are less likely to be cited, especially by men. [ 10 ] [ 11 ] Studies have generally shown that the imbalance in publication rates is because archaeology journals receive fewer submissions from women, rather than any detectable bias in the peer ...
The world’s oldest wine has been discovered at a Roman burial site in Spain, and one thing is clear — it definitely had body.. For roughly 2,000 years, the wine has been held in a glass ...
He is a Contributing Editor to Archaeology Worldwide, [4] American Archaeology and Discover Archaeology magazines, and formerly wrote a regular column for Archaeology Magazine. He serves on the Editorial Boards of six academic and general periodicals and has many popular magazine credits, including Scientific American and Gentleman's Quarterly.