Sentences with phrase «with nitrogen compounds»

When these two food groups are combined, the reaction of unsaturated fatty acids with nitrogen compounds in the vegetables results in the formation of nitro fatty acids.

Not exact matches

They carefully selected ions that react with volatile trace gases, but don't react with abundant compounds in breath such as oxygen and nitrogen.

The pollutant that has declined the least is ozone, a hard - to - control noxious gas formed when nitrogen oxides and volatile organic compounds react with sunlight.

Fixation processes free up nitrogen atoms from their diatomic form to be used in other ways, but nitrogen does not easily react with other chemicals to form new compounds.

Researchers led by Carol Pitcairn of the Institute of Terrestrial Ecology in Penicuik, near Edinburgh, have studied the nitrogen content of British sphagnum mosses and heather collected over the past forty years, and correlated these fignres with measurements of the local fallout of nitrogen - containing compounds.

Approximately 75 percent of compounds with medicinal uses have a nitrogen atom.

They investigated samples of the carbon compound enriched with the foreign atom nitrogen on various substrate materials.

This study found that the direct mutagenicity of the NPAHs with one nitrogen group can increase 6 to 432 times more than the parent compound.

Among biogenic volatile organic molecules is a class of compounds called monoterpenes, which react with ozone, hydroxyl radicals, nitrogen oxides, and other gases in the atmosphere.

Like vehicles and power plants, trees emit airborne chemicals called volatile organic compounds (VOCs), which in the presence of sunlight react with nitrogen oxides in vehicle fumes to form ozone, one of the components in smog that makes it a health threat.

The researchers were mixing organic nitrogen - rich compounds with nickel atoms and water.

Ekkehard Sinn of the University of Hull covers the inorganic chemistry of iron from its basic solid - state, coordination and organo - metallic chemistry to the various compounds it forms with the non-metals boron, nitrogen, phosphorus and so on.

Turning greenhouse gases into cooling aerosols The team then mixed the intermediates with various compounds, like sulfur and nitrogen greenhouse gases, to see how fast they reacted.

Decreasing concentrations of dissolved iron do not coincide with the occurrence of oxygen but with the increase of dissolved nitrogen compounds.

In their paper, published in Scientic Reports, the authors present the first demonstration that single - photon emission from a specially oriented compound defect (a nitrogen vacancy center) in diamond is dynamically and statically unpolarized with intrinsic randomness.

hydrogen cyanide A chemical compound with the formula HCN (meaning it consists of a bound atom of hydrogen, carbon and nitrogen).

The coral satisfy this additional energy requirement as well as the need for essential nitrogen and phosphorus compounds by eating zooplankton — an option that would become narrower with increasing ocean acidification,» says Claudio Richter.

Integrate coral reef management with land - use and coastal zone planning and practices to reduce pollutant inputs (notably, ammonium compounds, nitrogen and sulphur oxides) that increase the acidity of local waters.

The team observed that warmer temperatures significantly increase production of ozone, a colorless toxic gas, due to the reactions of certain chemical compounds with nitrogen oxides — greenhouse gases that come from vehicle tailpipes and power plant smokestacks.

They replaced particular carbon atoms in the hexagonal lattice with boron and nitrogen atoms using surface chemistry, by placing suitable organic precursor compounds on a gold surface.

Tropospheric ozone is created when the sun interacts with methane, nitrogen oxides, volatile organic compounds (VOCs) and carbon monoxide in the atmosphere.

Caffeine is an alkaloid — a natural, alkaline nitrogen - containing compound — with the chemical name 1,3,7 - trimethylxanthine and chemical formula C8H10N4O2 [1].

The reasoning is that catalytic converters convert oxygen and oxygen - rich compounds (such as nitrogen oxide) with carbon and carbon - rich compounds (such as carbon monoxide) into carbon dioxide.

In her new works the artist abuses and transforms film stock by treating it with substances including mascara, metal compounds, vitamin supplements, dyes, liquid nitrogen and highlighter pens, as well as with physical interventions such as grating, scratching, whipping and impressing.

Oxygen, in combination with hydrogen, is found in water and in many other compounds: so is carbon, nitrogen and sulphur, the elements from which proteins and other cellular components are made.

7: Forests).18, 31,32,33,34,35 Long periods of record high temperatures are associated with droughts that contribute to dry conditions and drive wildfires in some areas.159 Wildfire smoke contains particulate matter, carbon monoxide, nitrogen oxides, and various volatile organic compounds (which are ozone precursors) 37and can significantly reduce air quality, both locally and in areas downwind of fires.38, 39,40,41,42

The Ministry has added two nitrogen compounds, Nitrous oxide, a potent greenhouse gas with an effect 300 times greater than carbon dioxide; and ammonia, to previous sulphur dioxide and water pollution targets.

Recalling the concern reflected in the outcome document of the United Nations Conference on Sustainable Development, entitled «The future we want», 1 that the health of oceans and marine biodiversity are negatively affected by marine pollution, including marine debris, especially plastic, persistent organic pollutants, heavy metals and nitrogen - based compounds, from numerous marine and land - based sources, and the commitment to take action to significantly reduce the incidence and impacts of such pollution on marine ecosystems, Noting the international action being taken to promote the sound management of chemicals throughout their life cycle and waste in ways that lead to the prevention and minimization of significant adverse effects on human health and the environment, Recalling the Manila Declaration on Furthering the Implementation of the Global Programme of Action for the Protection of the Marine Environment from Land - based Activities adopted by the Third Intergovernmental Review Meeting on the Implementation of the Global Programme of Action for the Protection of the Marine Environment from Land - based Activities, which highlighted the relevance of the Honolulu Strategy and the Honolulu Commitment and recommended the establishment of a global partnership on marine litter, Taking note of the decisions adopted by the eleventh Conference of the Parties to the Convention on Biological Diversity on addressing the impacts of marine debris on marine and coastal biodiversity, Recalling that the General Assembly declared 2014 the International Year of Small Island Developing States and that such States have identified waste management among their priorities for action, Noting with concern the serious impact which marine litter, including plastics stemming from land and sea - based sources, can have on the marine environment, marine ecosystem services, marine natural resources, fisheries, tourism and the economy, as well as the potential risks to human health; 1.

In their press release from Friday they announce they have created a database [which seems not always to work] with updated data on current emissions sources, not just for CO2 and methane, but also for various nitrogen compounds and for instance soot — that most - ignored climate forcer.

As if sweltering heat weren't bad enough, Europeans also suffered through a higher - than - normal number of days with dangerous smog levels that year.6 Smog — with ground - level ozone as the main component — forms when sunlight reacts with chemicals such as volatile organic compounds, carbon monoxide, nitrogen oxides, and water vapor.

Acid rain develops when compounds like sulfur dioxide and nitrogen oxides released into the atmosphere combine with water and oxygen to form acidic pollutants such as sulfuric acid (EPA, 2012).

Since there are no environmental protection regulations governing indoor residential kitchens, your lungs, skin and digestive systems have become the de facto filter for a soufflé of carbon monoxide, nitrogen dioxide, formaldehydes, volatile organic compounds, polycyclic aromatic hydrocarbons, fine and ultra fine particles and other pollutants associated with meal preparation.

Mingce Long and Deyong Wu say their fabric uses a coating made from a compound of titanium dioxide,... Their report describes cotton fabric coated with nanoparticles made from a compound of titanium dioxide and nitrogen.