Sentences with phrase «other organic compounds in»

The abundance of water vapor, oxygen, methane, and other organic compounds in the atmosphere could be evidence of an active biosphere on the surface of a planet.

Not exact matches

The researchers, who released their findings in the current issue of the Journal of Functional Foods, suggest that cruciferous vegetables — such as broccoli, brussels sprouts and cabbage — contain an organic chemical compound called indole glucosinolates, which breaks down into other compounds, including indolocarbazole — ICZ — in the stomach.

They have studied comets» volatile organic compounds, planets orbiting other stars and the black holes in the Milky Way and other galaxies.

Evidence for such an origin might be bolstered if scientists find signs of other materials known to be present in comets, like carbon - based compounds called organics.

He was an organic chemistry professor at the Federal Institute of Technology in Zurich, Switzerland, from 1942 to 1976, where he carried out research on alkaloids, antibiotics, enzymes, and other organic compounds.

«The presence of synthetic compounds such as glycol ethers... and the assortment of other organic components is explained as the result of direct mixing of hydraulic fracturing fluids with ground water in the Pavillion gas field,» the draft report states.

With many sources of pollution in some parts of the world, however, air pollution also can contain a mix of hazardous gaseous molecules, such as carbon monoxide, formaldehyde, sulfur dioxide and other volatile organic compounds.

Scientists from the Nencki Institute of Experimental Biology of the Polish Academy of Sciences in Warsaw have recently discovered that the alpha and beta cells communicate with each other, and the central role in this communication is played by cannabinoids — organic compounds that occur in nature also in inflorescences of cannabis.

In addition to methane, these «organic compounds» also include a large number of other gases that play an important role in the atmospherIn addition to methane, these «organic compounds» also include a large number of other gases that play an important role in the atmospherin the atmosphere.

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.

They have also found components used to make DNA, the molecule that carries the instructions for how to build and regulate a living organism, as well as other biologically important molecules like nitrogen heterocycles, sugar - related organic compounds, and compounds found in modern metabolism.

They tried AMP, an organic compound found in breast milk and other substances, that is created as cells break down food.

The study will involve doing an analysis not only of benzene biomarkers and other volatile organic compounds, but also of certain heavy metals in urine and hair samples.

Since 2006, he has worked with NOAA's air sampling system that uses glass flasks to collect atmospheric samples from 44 different sites around the world to track the annual increase of ethane and other so - called volatile organic compounds in the air.

In chemistry, alcohol is any organic compound in which a hydroxyl group -LRB-- OH) is bound to a carbon atom, which in turn is bound to other hydrogen and / or carbon atomIn chemistry, alcohol is any organic compound in which a hydroxyl group -LRB-- OH) is bound to a carbon atom, which in turn is bound to other hydrogen and / or carbon atomin which a hydroxyl group -LRB-- OH) is bound to a carbon atom, which in turn is bound to other hydrogen and / or carbon atomin turn is bound to other hydrogen and / or carbon atoms.

Other meteorites — including Murray, which landed in Kentucky in 1950, and Allende, which made landfall in Mexico in 1969 — have been shown to contain similar organic compounds.

Finding out how methane and other organic species are formed in deep - sea hydrothermal systems is compelling because these compounds support modern day life, providing energy for microbial communities in the deep biosphere, and because of the potential role of abiotically - formed organic compounds in the origin of life.

«We managed to present the first molecular evidence of a direct and ubiquitous source of ELVOCs arising from the oxidation of monoterpenes and other volatile organic compounds in the gas phase.»

In a separate study, researchers report that all samples drawn from 45 crocodiles at five sites in and around South Africa's Kruger National Park contained detectable levels of four PFAAs, often in different combinations with other of the 15 fluorinated organic compounds trackeIn a separate study, researchers report that all samples drawn from 45 crocodiles at five sites in and around South Africa's Kruger National Park contained detectable levels of four PFAAs, often in different combinations with other of the 15 fluorinated organic compounds trackein and around South Africa's Kruger National Park contained detectable levels of four PFAAs, often in different combinations with other of the 15 fluorinated organic compounds trackein different combinations with other of the 15 fluorinated organic compounds tracked.

For example, many scientists argue that DNA and other organic compounds could simply be remnants of past life, says Mark Lever, a geomicrobiologist at Aarhus University in Denmark.

On the other hand, the chemoautotrophic hypothesis posits that iron sulfide reactions released hydrogen, which combined with carbon dioxide in the atmosphere to form organic compounds.

While other species detected in space are formed by gas - phase chemistry alone, or by a combination of both gas and solid - phase generation, methanol is a complex organic compound which is formed solely in the ice phase via surface reactions on dust grains.

The PNNL study measured how, in the atmosphere, these aerosols interact with and mix with other volatile or semi-volatile organic compounds, the carbon - centric chemicals that evaporate from both natural and human - made sources.

New volatile organic compounds used in construction and industry have now been recognised, along with other agents, such as sulphites, chlorates, isocyanates and many other chemicals already known to be potentially toxic, as causes of chronic asthma.

ORGANIC COMPOUNDS Organic compounds, any of a large class of chemical compounds in which one or more atoms of carbon are covalently linked to atoms of other elements, most commonly hydrogen, oxygen, or COMPOUNDS Organic compounds, any of a large class of chemical compounds in which one or more atoms of carbon are covalently linked to atoms of other elements, most commonly hydrogen, oxygen, or compounds, any of a large class of chemical compounds in which one or more atoms of carbon are covalently linked to atoms of other elements, most commonly hydrogen, oxygen, or compounds in which one or more atoms of carbon are covalently linked to atoms of other elements, most commonly hydrogen, oxygen, or nitrogen.

Certain particle compounds may directly generate ROS in vivo because of their surface chemistry (eg, metals, organic compounds, and semiquinones) or after bioactivation by cytochrome P450 systems (eg, polycyclic aromatic hydrocarbon conversion to quinones).6, 290 a, 290 b A particle surface or anions present on otherwise more inert particles may disrupt iron homeostasis in the lung and thereby also generate ROS via Fenton reactions.291 Other PM constituents may do so indirectly by the upregulation of endogenous cellular sources (eg, nicotinamide adenine dinucleotide phosphate [NADPH]-RRB- oxidase) 292,293 or by perturbing organelle function (eg, mitochondria) by taken - up PM components.261 Particle stimulation of irritant and afferent ANS fibers may also play a role in local and systemic oxidative stress formation.294 Given the rich antioxidant defenses in the lung fluid, secondarily generated oxidization products of endogenous molecules (eg, oxidized phospholipids, proteins) or a reduction in endogenous antioxidants per se may be responsible at least in part for the state of oxidative stress in the lungs (along with instigating the subsequent cellular responses) rather than ROS derived directly from PM and its constituents.

If you purchase a Multi-Pure 750 plus RO water filter, it can reduce the fluoride and chlorine, as well as some other toxic metals, volatile organic compounds, some pesticides in your tap water.

(They didn't measure for other common ingredients in fragranced products, including benzene, formaldehyde and volatile organic compounds (VOCs).

The report examined the levels of volatile organic compounds in a school and nine other buildings.

«My instinct is that it only makes sense to prevent children's exposure to chemicals known to affect the nervous system, and those include pesticides, solvents, many volatile organic compounds, metals, PCBs, and thousands of other poorly tested synthetic chemicals now in commerce.

In particular, aircraft jet engines produce carbon dioxide (CO2), water vapor (H2O), nitrogen oxides (NOx), carbon monoxide (CO), oxides of sulfur (SOx), unburned or partially combusted hydrocarbons (also known as volatile organic compounds, or VOCs), particulates, and other trace compounds.

Biological residue is defined as any substance, including metabolites, remaining in poultry at the time of slaughter or in any of its tissues after slaughter, as the result of treatment or exposure of the live poultry to a pesticide, organic compound, metallic or inorganic compound, hormone, hormone - like substance, growth promoter, antibiotic, anthelmintic, tranquilizer, or other agent that leaves a residue (9 CFR 381.1).»

The standards we recommend in this report would also significantly reduce emissions of other air pollutants, specifically smog - forming volatile organic compounds and toxic pollutants like benzene that cause cancer and are associated with a host of other health problems.

Various Updates In a move that environmental campaigners had sought for years (as had I), the Environmental Protection Agency has issued final rules that could substantially cut emissions of heat - trapping methane, smog - forming volatile organic compounds and toxic air pollutants such as benzene from new, rebuilt or modified oil and gas wells and other infrastructure and operations.

An international team of researchers report in Nature Communications that they made a computer model of the planet's atmospheric conditions: they included natural and human - triggered aerosols, volatile organic compounds, greenhouse gases and other factors that influence temperature, one of which is albedo: the scientist's word for the capacity of terrain to absorb or reflect solar radiation.

Other actions to reduce methane emissions: The U.S. EPA also has standards in place that limit the volatile organic compounds emitted from large landfills, which would also reduce landfill methane emissions as a co-benefit.

In addition, the introduction of volatile organic compounds (VOCs) and other contaminants to the site can degrade the building's indoor environmental quality before occupancy begins.

An EPA study of chemicals in septic tanks found toluene, methylene chloride, benzene, chloroform, and other volatile synthetic organic compounds related to home chemical use, many of them cancer - causing.

In addition, the project is expected to meet the volatile organic compounds (VOC) limit for paints, sealants, carpets and other interior products.

Pick the Right Paint According to the Environmental Protection Agency (EPA), paint, wood stain and other varieties of coatings account for about 9 percent of volatile organic compounds (VOC) emissions in the country every year.

Safety: Avoid introducing volatile organic compounds (hazardous gases) by choosing zero - VOC paint for the nursery, like Benjamin Moore's Natura line, which is fully tintable (unlike some other no - VOC paints), comes in a variety of finishes and dries fast, too — just in case you're really DIYing down to the wire!

The «organic» paint brands, such as Ecos, which emerged in the late 1980s, heralded a new era of odourless paints, free of solvents and VOCs (volatile organic compounds) and paved the way for other companies» environmentally safe formulas.