A West Virginia University researcher is working to understand and estimate environmental cleanup costs associated with agricultural runoff that causes polluted "dead zones" in downstream coastal systems.
Environment
9 hours ago
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3
Teams with NASA are gaining momentum as work progresses toward future lunar missions for the benefit of humanity as numerous flight hardware shipments from across the world arrived at the agency's Kennedy Space Center in ...
Space Exploration
Jan 20, 2025
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1
If corn was ever jealous of soybean's relationship with nitrogen-fixing bacteria, advancements in gene editing could one day level the playing field. A recent study from the University of Illinois Urbana-Champaign shows that ...
Molecular & Computational biology
Jan 16, 2025
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Researchers from the Hong Kong Polytechnic University, alongside mainland collaborators, have uncovered an unexpected phenomenon: severe wintertime ozone (O3) pollution in Lanzhou, China, driven primarily by alkene emissions ...
Earth Sciences
Jan 13, 2025
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6
Nitrogen is an essential component in the production of amino acids and nucleic acids—both necessary for cell growth and function. Although the atmosphere is composed of nearly 80% nitrogen, this nitrogen is in the form ...
Biochemistry
Jan 8, 2025
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71
The practice of growing different but complementary plants within a given area, also known as intercropping, has numerous positive effects, such as reduced soil erosion, weed suppression, nitrogen fixation (the conversion ...
Agriculture
Jan 8, 2025
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1
The melting point is one of the most important measurements of material properties, which informs potential applications of materials in various fields. Experimental measurement of the melting point is complex and expensive, ...
Analytical Chemistry
Dec 20, 2024
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26
There's a good chance you owe your existence to the Haber-Bosch process.
Materials Science
Dec 19, 2024
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140
UNSW engineers have developed and built a special maser system that boosts microwave signals—such as those from deep space—but does not need to be super-cooled.
Optics & Photonics
Dec 19, 2024
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108
Detection of nitric oxide (NO) is important for monitoring air quality because the NO released in the combustion of fossil fuels contributes to acid rain and smog. In medicine, NO is an important messenger molecule and serves ...
Analytical Chemistry
Dec 12, 2024
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21
Nitrogen (pronounced /ˈnaɪtrədʒɨn/) is a chemical element that has the symbol N and atomic number 7 and atomic mass 14.00674 u. Elemental nitrogen is a colorless, odorless, tasteless and mostly inert diatomic gas at standard conditions, constituting 78% by volume of Earth's atmosphere.
Many industrially important compounds, such as ammonia, nitric acid, organic nitrates (propellants and explosives), and cyanides, contain nitrogen. The extremely strong bond in elemental nitrogen dominates nitrogen chemistry, causing difficulty for both organisms and industry in converting the N2 into useful compounds, and releasing large amounts of energy when these compounds burn or decay back into nitrogen gas.
The element nitrogen was discovered by Daniel Rutherford, a Scottish physician, in 1772. Nitrogen occurs in all living organisms. It is a constituent element of amino acids and thus of proteins, and of nucleic acids (DNA and RNA). It resides in the chemical structure of almost all neurotransmitters, and is a defining component of alkaloids, biological molecules produced by many organisms.
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