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The top one or two centimetres of lake deposits are enriched in nitrogen compounds.
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Nitrogen compounds, like urea, a big component of urine, are transformed over several steps.
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Burning diesel versus gas results in higher levels of nitrogen compounds and soot, both of which can be very harmful to human health.
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At the heart of the molecule are four different nitrogen-containing compounds called bases.
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He searched for years and eventually lighted on a mixture of oleic acid (a fatty acid found in various vegetable oils) and nitrogen-containing compounds called amines.
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All over the world, since the mid-20th Century, sediments have become measurably enriched in 'reactive' nitrogen - nitrogen oxides and ammonium compounds.
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To simulate the atmosphere, they have built a special cloud chamber of their own, with the air manufactured from scratch, using liquid nitrogen and oxygen together with precise amounts of trace compounds, including sulphuric acid and ammonia.
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The hazardous compounds are: two forms of hydrazine, nitrogen tetroxide and a pure form of ammonia.
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These include the exhaust gases such as nitrogen oxides (NOx), non-methane volatile organic compounds (NMVOCs), and carbon monoxide (CO).
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Nitrogen, methane, helium, water, carbon-oxygen compounds and hydrogen produced from mining, could permit food growth and development of a water supply for lunar inhabitants.
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So Coe moved a nitrogen atom, too, and suddenly had a series of compounds to test that did exactly what Pfizer had wanted a drug to do.
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