Exact(2)
The first time a patient was treated with cyclophosphamide, the active part of nitrogen mustard, the tumour shrank – something not even thought possible at the time.
But a large part of nitrogen deposited in the soil can't be absorbed by plants and is lost to the environment, resulting in severe environmental and ecological pollution1,2.
Similar(58)
The compound NO has equal parts of nitrogen and oxygen by volume.
Expression of FLS was clearly elevated in all parts of nitrogen deprived plants while the level remained relatively stable in plants receiving nitrogen.
The MYB-type transcription factor ANT1, and the putative bHLH transcription factor SlJAF13, also increased in all parts of nitrogen deprived plants.
Although the fixation of atmospheric nitrogen is an essential part of the nitrogen cycle, ammonification and nitrification are the predominant methods by which organic nitrogen is prevented from returning to the atmosphere and is kept cycling through the biosphere.
Legumes can obtain a significant part of their nitrogen from the atmosphere through a symbiotic interaction with nitrogen fixing bacteria.
Henry Cavendish, while investigating atmospheric nitrogen ("phlogisticated air"), had concluded in 1785 that not more than 1/120 part of the nitrogen might be some inert constituent.
However, helium is not narcotic, and a usable mixture may be blended either by completely replacing nitrogen with helium (the resulting mix is called heliox), or by replacing part of the nitrogen with helium, producing a trimix.
The main part of the nitrogen depth profiles can be described by an complementary error function.
Microanalysis also confirms that with the Fe-μ-oxo and CoTMPP part of the nitrogen is retained.
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