Ammonia is a generic precursor for the manufacture of essential fertilizer and most nitrogen-containing organic chemicals. To date, industrial ammonia production is predominantly conducted by the ...
Proceedings of the National Academy of Sciences of the United States of America, Vol. 98, No. 4 (Feb. 13, 2001), pp. 1489-1494 (6 pages) Ribozymes of hepatitis delta virus have been proposed to use an ...
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