Sentences with phrase «classes of chemicals»

Signs of SLUD are most consistent with exposure to which of the following classes of chemicals?

It is produced in such large volumes because it can be easily combined with other elements and molecules, transforming it into new classes of chemicals.

According to California's regulations under the Safe Drinking Water and Toxic Enforcement Act of 1986 (commonly referred to as «Prop 65», which is significantly stricter than the FDA on many levels), there is a «Safe Harbor» list of two classes of chemicals: those that cause reproductive toxicity and those that are considered carcinogens.

Phthalates, a class of chemicals known to cause reproductive and developmental defects, leach into the air, water and bodies from the PVC.

Many disposables also add fragrance to their diapers to mask fecal odours or chemical odours, which in many cases contain phthalates, the class of chemicals known to disrupt the endrocrine system.

The delay comes as POLITICO reported that the U.S. Environmental Protection Agency helped bury a report that would have recommended lower limits for the class of chemicals found in the drinking water in Hoosick Falls, Newburgh and elsewhere.

They turned to quinones, a carbon - based class of chemicals that play an important role in animal and plant metabolism, moving electrons in the chemical reactions we use to store energy in our bodies.

This strategy doesn't work as the enzymes mosquitoes use to disable one class of chemicals tend to cripple other classes too.

The findings matched up: saturated hydrocarbons were the single most common class of chemicals overproduced by queens or fertile individuals.

BlaC is a secreted β - lactamase enzyme that breaks down β - lactams, a class of chemicals that include antibiotics such as penicillin.

Many troops were exposed to a class of chemicals called organophosphates, which include everything from pesticides to sarin gas, a chemical weapon.

In response, Luk's team has developed a class of chemical agents that does not kill bacteria but, rather, changes their multicellular behaviors.

Pirate is a member of a class of chemicals called pyrroles, which kill by tampering with several enzymes needed to manufacture the energy storage molecule ATP in cells» mitochondria.

Bisphosphonates are a class of chemicals that have a remarkable ability to bind to calcium.

The findings, which are the latest to emerge from Micalizio's research focusing on developing a class of chemical reactivity called «metallacycle - mediated cross-coupling,» stand as among the most complex examples of this chemistry ever described.

Maybe we should, now that we have a new class of chemical building blocks called superatoms — atomic clusters that behave like individual atoms.

A class of chemicals used as flame retardants in polyurethane foam furniture padding, as well as in car dashboards and computer shells, have been gassing into the environment and turning up in everything from household dust to halibut.

The rules proposed yesterday at the White House target hydrofluorocarbons (HFCs), a class of chemicals used in air conditioning, foams and refrigeration (E&EN ews PM, Oct. 15).

They were just trying to do their science as best they knew how before announcing a fascinating (at least to planetary geochemists) discovery that they've found a class of chemicals called perchlorates in the martian soil.

14 MRSA's deadliness comes in part from a class of chemicals known as carotenoids, which MRSA uses to fight off our immune systems.

It is not every day that an entirely new class of chemicals is discovered, but researchers in Australia have done just that.

She calls up her analysis for PCBs, another class of chemicals detected inside me.

PAH is a class of chemical compunds that are a natural part of raw oil, Sørhus explains.

The fungus killed mosquitoes resistant to three classes of chemical insecticides commonly used in Africa and could aid anti-malaria efforts

A few interesting articles in early life human microbiome, plus: A comparison between Staphylococcus epidermidis commensal and pathogenic lineages from the skin of healthy individuals living in North American and India; A new tool to reconstruct microbial genome - scale metabolic models (GSMMs) from their genome sequence; The seasonal changes in Amazon rainforest soil microbiome are associated with changes in the canopy; A specific class of chemicals secreted by birds modulates their feather microbiome; chronic stress alters gut microbiota and triggers a specific immune response in a mouse model of colitis; and evidence that the short chain fatty acids profile in the gut reflects the impact of dietary fibre on the microbiome using the PolyFermS continuous intestinal fermentation model.

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 nitrogen.

Phthalates (the «ph» is silent) are a class of chemicals that are put into all sorts of different products, often to make plastic soft and flexible, says Barrett.

AHAs are alpha - hydroxy acids, a class of chemical compounds that can be either naturally occurring or synthetic.

Microwavable popcorn bags are often coated with PFCs (perfluorochemicals)-- a class of chemicals widely used in water, grease, and stain repellents.

Astaxanthin is a pigment that belongs to a class of chemicals known as carotenoids, a group of...

This argument focuses on a class of chemicals called dioxins, and suggests that in the modern world, overburdened by pollutants, these fat - soluble chemicals accumulate specifically in the fatty tissue of animal products, making a vegetarian — even vegan — diet a necessity for those living in the modern world.

I've previously talked about this class of chemicals in Food Sources of Flame - Retardant Chemicals.

They belong to the vegetable family of nightshades, be cautious of the nightshade family of vegetables, as I've mentioned in the Psoriasis Diet book, as these are colorful and contain antioxidants but often best avoided by those with psoriasis because they contain a class of chemical called alkaloids, and these alkaloids can provoke and stimulate inflammation, rather than suppress.

catecholamine is a class of chemicals that include dopamine, norepinephrine, and epinephrine.

Forty percent of all pesticides used worldwide are from the organochlorine class of chemicals, including the now - banned pesticide DDT, made infamous in Rachel Carson's seminal work Silent Spring.

These chemicals affect our health in different ways, and one class of chemicals called phthalates may affect human metabolism and weight, specifically.

Totaling only about 31 calories for one cup serving of broccoli, this plentiful veggie also delivers a kind of anti-cancer class of chemicals called phytonutrients.

You wouldn't think that regular folks would object to banning such a harmful class of chemicals, but they do.

Parabens are a wide class of chemicals, including propyl paraben and butyl paraben.

Tricolsan is also threatening due to its process of breaking down into dioxins — a class of chemicals that are well - documented carcinogens.

Imidacloprid is a systemic insecticide found in flea and tick products that acts as an insect neurotoxin and belongs to a class of chemicals called the neonicotinoids, says Khalsa.

Discovery News reported this week that «In a new study that analyzed the blood of 62 domestic cats and 10 feral cats, researchers from the University of Illinois at Urbana - Champaign found that cats living inside homes had higher blood levels of a class of chemicals called PBDEs, compared with their outdoor - living peers.»

Known as «Insect Growth Regulators,» this class of chemical is considered fairly non-toxic.

OTTAWA, June 25, 2014 — In light of a comprehensive review of the effects of neonicotinoid pesticides («neonics»), environmental groups have renewed their call for federal and provincial governments to end the use of this class of chemicals in Canada.

A class of chemicals called «phthalates» is often used to soften PVC plastic and make it flexible.

HFCs are a class of chemicals developed as industry looked for ways to reduce ozone - depleting substances in refrigerants and other applications.

This extremely persistent and cancer - causing class of chemicals is found in food packaging materials, such as fast - food wrappers and microwave popcorn bags.

Chlorofluorocarbons (CFCs) are a class of chemical refrigerants that destroy the ozone layer and warm our planet.

The very simple message is that for most of the classes of chemical compounds we looked at, frogs range from being moderately susceptible to being bullet - proof.

But a new study puts some of the blame on an entirely different class of chemicals... Read on for more details.