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...tic]] ring structure with two heteroatoms, at least one of which must be a nitrogen atom. One, and only one, lone pair of electrons from each heteroatom is pa

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...of ''Klebsiella pneumoniae'' it was found that glnA and glnG regulates the nitrogen fixing activities(8). ...Merrick M. "Complementation analysis of glnA-linked mutations which affect nitrogen fixation in Klebsiella pneumoniae". Mol Gen Genet. 1981. Volume 184, No. 2.

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====[[Nitrogen mustards]]====

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'''Isotopes of Nitrogen and their Physical Properties'''

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...n atoms, nitrogen atoms in amide groups, or [[ether]]-like [[oxygen]] or [[nitrogen]] atoms, often within cyclic compounds. Al₃ is often used as a

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...e [[basic metabolic panel]], which also measures [[glucose]], [[blood urea nitrogen]] and [[creatinine]]; an automated analyzer often simultaneously determines

...-called permanent [[gases]] (such as [[helium]], [[hydrogen]], [[neon]], [[nitrogen]], [[oxygen]], and normal [[Earth's atmosphere|air]]) lie below -180 °C wh ...rogen]] and liquid helium, are used in many cryogenic applications. Liquid nitrogen is the most commonly used element in cryogenics and is legally purchasable

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...so contain small amounts of [[particulate matter]], [[carbon monoxide]], [[nitrogen oxide]]s, and [[sulfur oxide]]s in the form of gaseous [[sulfur dioxide]] ( ...into gaseous nitrogen dioxide (NO₂) and some of that gas phase nitrogen oxide then combines with water vapor to form gas phase [[nitric acid]] (HNO

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...formation and release of [[smoke]], ash, [[dust]], [[carbon dioxide]], [[nitrogen oxide]]s and other air pollutants. ..., result in the formation and release of smoke, ash, dust, carbon dioxide, nitrogen oxides and other air pollutants.

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...in which one or the other of the oxygen atoms forms a double bond with the nitrogen atom.}}

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...[[methane]], [[ethane]], [[propane]], [[isobutane]], normal [[butane]], [[nitrogen]], [[carbon dioxide]] and [[hydrogen sulphide]].

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...y the diatomics such as [[oxygen]] (O=O), [[carbon monoxide]] (C≡O), and [[nitrogen]] (N≡N). But also many triatoms are linear: ...cene]] (C₁₄H₁₀), [[water]] (H₂O), and [[nitrogen dioxide]] (NO₂).

...en, the resultant [[flue gas]] from the combustion of a fuel will contain nitrogen plus the products of combustion: <center>'''methane + oxygen + nitrogen → carbon dioxide + water vapor + nitrogen'''<br/>

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...min). Secondary end points were dietary protein intake, normalized protein nitrogen appearance, serum albumin, and mid-arm muscle circumference. Compared with

...sue|tissue]]/[[DNA]] samples and 21 pet tissue/[[DNA]] samples in [[liquid nitrogen]] storage.<ref>{{cite web ...the privilege of making arrangements for perfusion and storage in liquid [[nitrogen]] for $28,000, whereas an Option Two Member must pay $35,000.<ref name="Mem

...nd hydrogen bond is formed between the uracil H3 proton and the adenine N1 nitrogen atom. Like other nucleotide bases, it is subject to oxidative damage.

...osive salt of hydrazoic acid, HN₃. The compound is white, has a nitrogen content of 28.86 percent and a molecular weight of 291.26. <ref name=ExplTM

*Other gases: [[nitrogen]] (N₂) and [[helium]] (He). ...mounts of components such as hydrogen sulfide, carbon dioxide, mercaptans, nitrogen, and water vapor.

...ition of [[azomethane]] (CH₃N=NCH₃) into methane and nitrogen gas. Many compounds decay so slowly that it is impractical to wait for half

...lled Laser Vaporization Controlled Condensation (LVCC). The proportion of nitrogen to oxygen gas determines the resulting products, for example, a 1:1 mixture

! Percent nitrogen

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[[Earth's atmosphere|air]], [[oxygen]] 21% by volume and [[nitrogen]] 79% by volume are: |align=left|= partial pressure of nitrogen&nbsp; =<font style="vertical-align:-15%;"> <math>p_{{\mathrm{N}}_2}</math><

...000,000 metric tons.<ref>[http://minerals.usgs.gov/minerals/pubs/commodity/nitrogen/nitromcs07.pdf United States Geological Survey publication]</ref> China pro ...process]], which is the production of ammonia by combining hydrogen and [[nitrogen]], was first patented by [[Fritz Haber]] in 1908. In 1910, [[Carl Bosch]],

[[Earth's atmosphere|air]], [[oxygen]] 21% by volume and [[nitrogen]] 79% by volume are: |align=left|= partial pressure of nitrogen&nbsp; =<font style="vertical-align:-15%;"> <math>p_{{\mathrm{N}}_2}</math><

...000,000 metric tons.<ref>[http://minerals.usgs.gov/minerals/pubs/commodity/nitrogen/nitromcs07.pdf United States Geological Survey publication]</ref> China pro ...process]], which is the production of ammonia by combining hydrogen and [[nitrogen]], was first patented by [[Fritz Haber]] in 1908. In 1910, [[Carl Bosch]],

| Urea nitrogen

==== Nitrogen mustard analogues====

For another example, consider the elements [[nitrogen]], N, and [[oxygen]] O. The element oxygen occurs in the compounds NO (nitr ...e.html Eight molecular manipulable models of different compounds of solely nitrogen and oxygen, illustrating the law of multiple proportions.] USC Department o

...displacement of PRPP's pyrophosphate group (PP_i) by Gln's amide nitrogen. The reaction occurs with the inversion of configuration about ribose C1, t

...cket engines with the storable, hypergolic mixture of Aerozine 50 fuel and nitrogen tetroxide oxidizer.

...sub>), [[sulfur dioxide]] (S0₂), [[carbon monoxide]] (CO) and [[nitrogen dioxide]] (NO₂) and calculate air quality indices for these poll ...API) level that is based on the ambient air concentrations sulfur dioxide, nitrogen dioxide, particulate matter (PM₁₀), carbon monoxide, and ozone a

...ocesses occurring in a trickle filter, there may also be some by-product [[nitrogen]] (N₂) and [[methane]] (CH₄) gases. *Formation of gases in the biofilm such as carbon dioxide, nitrogen and methane

...during a J-T expansion at typical room temperatures. On the other hand, [[nitrogen]] has an inversion temperature of 621 K (348 °C) and [[oxygen]] has an inv ...[[cryogenic]] applications (e.g., for the production of [[liquid]] oxygen, nitrogen and [[argon]]). Only when the Joule-Thomson coefficient for the given gas a

...during a J-T expansion at typical room temperatures. On the other hand, [[nitrogen]] has an inversion temperature of 621 K (348 °C) and [[oxygen]] has an inv ...[[cryogenic]] applications (e.g., for the production of [[liquid]] oxygen, nitrogen and [[argon]]). Only when the Joule-Thomson coefficient for the given gas a

...not required to pay for the initial freezing, yearly maintenance in liquid nitrogen, or eventual reanimation (should the latter prove possible). Members often ...ion and procedures for maintaining tissue, organs, and organisms at liquid nitrogen temperature.

...', namely [[carbon monoxide]] (CO), [[sulfur dioxide]] (SO₂), [[nitrogen dioxide]] (NO₂), [[ozone]] (O₃), [[lead]] (Pb), [[Par |Nitrogen dioxide||0.053 ppmv<br/>( 100 μg/m³ )||Annual<br/>(arithmetic m

...es and/or surface composition, frost layers, and interactions with Pluto's nitrogen-methane atmosphere. NASA photo credit (HST, STScI-PR96-09a)}} ...ntly covered by water ice. Pluto, on the other hand is covered with frozen nitrogen, methane, and carbon dioxide. One possible explanation for the difference i

...[[spermatozoon|sperm]] and [[embryo]]s that are cold-preserved in [[liquid nitrogen]].

...nucleus (1909&ndash;1911). Later Rutherford and collaborators bombarded [[nitrogen]] with &alpha;-particles, changing it to [[oxygen]], producing in 1919 the

<tr><td>[[Nitrite]]</td> <td>NO₂^-</td> <td> Evolves [[nitrogen dioxide]] (NO₂) gas when sulfuric acid is added; Reduces Fe(III)

...Ernst AA, Haynes ML, Nick TG, Weiss SJ |title=Usefulness of the blood urea nitrogen/creatinine ratio in gastrointestinal bleeding |journal=Am J Emerg Med |volu ...Ernst AA, Haynes ML, Nick TG, Weiss SJ |title=Usefulness of the blood urea nitrogen/creatinine ratio in gastrointestinal bleeding |journal=Am J Emerg Med |volu

Auto-populated based on [[Special:WhatLinksHere/Nitrogen]]. Needs checking by a human.

...e competition between the plants that need the nitrogen for growth and the nitrogen needed for the stabilization of the organic matter. #Carbon/Nitrogen ratio: during the compost process the C/N-ration will decrease, so we can u

...nergy (science)|energy]]. When fossil fuels are burned, [[acid]]-forming [[nitrogen oxides]] and [[sulfur oxides]] are released to the [[atmosphere]]. These [[ ...en employed to reduce emissions of [[sulfur dioxide]] (SO₂) and nitrogen oxides (NOx).

...[Energy (science)|energy]]. When fossil fuels are burned, [[acid]]-forming nitrogen oxides and sulfur oxides are released to the [[atmosphere]]. These [[chemic ...en employed to reduce emissions of [[sulfur dioxide]] (SO₂) and nitrogen oxides (NOx).

...[moon]]. For example, the atmosphere of the [[Earth]] is composed of 78% [[nitrogen]], 20% [[oxygen]], 1% [[argon]] and trace amounts of other elements. On the

<tr> <td>[[Nitrogen]]-14</td> <td>¹⁴N</td> <td>1</td> <td>0.000998</td> <tr> <td>Nitrogen-15</td> <td>¹⁵N</td> <td>-1/2</td> <td>3.84E-06</td>

|align=center| [[Nitrogen|N₂]] ||align=center| 1639.34 ||align=center| 6.1 E-4 ||align=ce ...₂]] || align=center| [[CO2|CO₂]] || align=center| [[Nitrogen|N₂]] || align=center| [[Helium|He]] || align=center| [[Neon|Ne]]

Sputnik 1 was pressurized with inert nitrogen at 1.3 atmospheres. The power for the transmitter etc was supplied by 3 sil

...atic systems and has been speculated to account for approximately 50% of [[nitrogen]] gas production in some marine environments. ...] as a carbon source for growth. Some photosynthetic organisms also fix [[nitrogen]] (see below).

...sult is that the hydrocracking products are essentially free of sulfur and nitrogen impurities and consist mostly of [[Hydrocarbons|paraffinic]] hydrocarbons. ...[platinum]]) catalysts which are susceptible to [[poisoning]] by sulfur or nitrogen compounds.<ref name=Jones/>

...mmonia]] from the gaseous [[chemical element|elements]] [[hydrogen]] and [[nitrogen]]. [[Ammonia]] is an important feedstock for artificial fertilizers and exp ...N₂ + 3H₂ → 2NH₃ is a good candidate for nitrogen (N₂) fixation, because the resulting ammonia (NH₃) ca

...ntage of pollutants such as [[particulate matter]], [[carbon monoxide]], [[nitrogen oxide]]s and [[sulfur oxide]]s. The flue gas stacks are often quite tall, u ...[sulfur dioxide]] via [[flue gas desulfurization]] as well as removal of [[nitrogen oxides]] (NO_x) via [[selective catalytic reduction]], [[exhaust

|align=center| [[Nitrogen|N₂]] ||align=center| 1639.34 ||align=center| 6.1 E-4 ||align=ce ...₂]] || align=center| [[CO2|CO₂]] || align=center| [[Nitrogen|N₂]] || align=center| [[Helium|He]] || align=center| [[Neon|Ne]]

...rganism byproducts were used to [[fertilize]], [[nitrogen fixation|restore nitrogen]], and [[pesticide|control pests]]. Throughout the use of agriculture farme

...esence extends the life of the maize plot significantly by helping to keep nitrogen levels healthy. One might say that the maize repays the debt it owes to th

...]. The hydrogen atom must be attached to one of the elements [[oxygen]], [[nitrogen]] or [[fluorine]], all of which are strongly [[Electronegativity|electroneg ...ir of electrons in nonmetallic atoms (most notably in the [[nitrogen group|nitrogen]], and [[chalcogen]] groups). In some cases, these proton acceptors may be

...r to the [[azole]]s [[pyrazole]] and [[imidazole]], but with an additional nitrogen atom in the ring structure. Like the azoles, triazoles are used in many an

...[[Joseph-Louis Gay-Lussac]] developed a tower that recovered most of the [[nitrogen oxide]] gases formed and reduced the consumption of nitrate. The first Gay- ...se. However, it produced the hazardous byproducts [[hydrochloric acid]], [[nitrogen oxides]], [[sulphur]] and [[chlorine]] gas. In 1811, Augustine Jean Fresnel

...results in a substantial reduction of unburned hydrocarbons. Emissions of nitrogen oxides are either slightly reduced or slightly increased depending on the d

...H₃, is an analogue of ammonia, NH₃. Phosphorus, like nitrogen, is trivalent in this molecule. Figure A shows the pre-quantum mechanical ...us [[cation]] is very similar to the nitrogen cation. In the same way that nitrogen forms the tetravalent ammonium ion, phosphorus can form the tetravalent pho

...H₃, is an analogue of ammonia, NH₃. Phosphorus, like nitrogen, is trivalent in this molecule. Figure A shows the pre-quantum mechanical ...us [[cation]] is very similar to the nitrogen cation. In the same way that nitrogen forms the tetravalent ammonium ion, phosphorus can form the tetravalent pho