Sentences with phrase «part by its chemical»

How a material affects light falling upon it is dictated in part by its chemical composition, but its internal structure can have an even stronger influence.

Not exact matches

The U.S. - led strike on Syria in response to a suspected chemical weapons attack by Bashar al - Assad's forces was specific and not part of a wider campaign, says Dakota Wood of the Heritage Foundation.

Likewise, the ratio of electrons to protons can not vary by more than 1 part in 10 to the 37th power or else electromagnetic interactions would prevent chemical reactions.

Likewise, the ratio of electrons to protons can not vary by more than 1 part in 1037 or else electromagnetic interactions would prevent chemical reactions.

He adds that just as an infinity of functions may have the same differential (functions which differ from each other by a constant — the so - called «constant of integration») so the integration of physico - chemical elements (a «summation» which, inversely, proceeds from the derivative to the function) would determine the vital action only in part.

The most comprehensive methodology for testing the chemical composition of unrecorded alcohol products was developed as part of the Alcohol Measures for Public Health Research Alliance (AMPHORA) project, a collaboration among 13 EU member states funded by the European Commission.

I spent part of last weekend in an altered state of reality, my perceptions twisted by chemicals.

RhodiaFood, part of French speciality chemicals company Rhodia, recently announced that it would hike up the price of its Rhodigel food grade xanthan gum by 10 per cent.

It is generally believed that the symptoms a person experiences when going through aspartame withdrawal will vary based on which parts of the body were most affected by this chemical.

By adding the vinegar, you created a chemical reaction which caused the milk to separate into two parts, a solid (the curds) and a liquid (the whey).

When you're in a stressful or dangerous situation, your body responds by producing hormones and chemicals as part of the «fight - or - flight» reaction (so named because that's exactly what the body is preparing itself to do — to either fight off the danger or run from it).

Culminating months of controversy and scientific debate, Wednesday's decision by the 12 advisers of the Center for the Evaluation of Risks to Human Reproduction — part of the National Institutes of Health — is the first official, government action related to the plastics chemical.

But the revised draft (cerhr.niehs.nih.gov / chemicals / bisphenol / BPA (underscore) Interim (underscore) DraftRpt.pdf) also has generated heavy criticism by academic scientists, in part because it uses the raw data from SI.

Blood samples from infants who died of Sudden Infant Death Syndrome (SIDS) had high levels of serotonin, a chemical that carries signals along and between nerves, according to a study funded in part by the National Institutes of Health.

The S - 300 sale is potentially a threat to intervention by air in the Syrian Civil War by the U.S. or its allies (the U.K. and France, for example, also participated in the chemical weapons retaliation strike in April of 2018, and Turkish aircraft have intervened in parts of the Syrian Civil War as well, for example, shooting down a Russian jet fighter which was intruding into its air space).

Removing PCBs from the river was ordered by the federal government in a landmark 2002 order, decades after General Electric Co. legally discharged the chemical into the river as part of its upstate operations.

1962 saw the publication of «Silent Spring» by Rachel Carson, which detailed the damaging impact of DDT and other chemicals on the environment, and played a key part in popularising environmentalism.

Olin Corp. has reduced chlor alkali production capacity at its Niagara Falls plant by 20 percent since the beginning of this year as part of a series of cutbacks by the chemical manufacturer.

Several environmental organizations, boosted by the popular movie «Gasland,» have claimed that using hydrofracturing can endanger public water supplies, in part because of potentially toxic chemicals that are sometimes used to help extract the gas.

The EPA's abrupt new direction on legacy chemicals — like PFOA — is part of a broad initiative by the Trump administration to change the way the federal government evaluates health and environmental risks associated with hazardous chemicals, making it more aligned with the industry's wishes.

Part of the proposed rules issued this month by DEC would make New York the first state to require drilling companies to disclose the chemicals injected into wells.

The CPI project, led by journalists Dan Fagin of Newsday and Marianne Lavelle of the National Law Journal, in part analyzed 161 studies of four chemicals reviewed over the last 25 years: two pesticides — alachlor and atrazine — the industrial solvent formaldehyde, and the dry - cleaning agent perchloroethylene.

That move was championed by Republican leadership and the Texas Public Utility Commission and has opened the possibility for renewables as a substantial part of the energy portfolios for multiple cities, said Thomas Edgar, a professor of engineering and chairman of the Department of Chemical Engineering at the University of Texas, Austin.

Biologists now know that the genome sequence holds only a small part of the answer, and that key elements of development and disease are controlled by the epigenome — a set of chemical modifications, not encoded in DNA, that orchestrate how and when genes are expressed.

The creatures were developed by scientists at the National University of Singapore as part of an ongoing attempt to make transgenic fish that light up when exposed to such chemical toxins as PCBs, which are known to cause cancer in humans.

By redirecting that energy to a genetically modified part of the cell capable of producing various complex chemical materials, we induce the light driven biosynthesis of these compounds,» says Post Doc Agnieszka Janina Zygadlo Nielsen, who along with colleagues Post Doc Thiyagarajan Gnanasekaran and PhD student Artur Jacek Wlodarczyk has been the main researcher behind the study.

-- Charlene Colchester, via e-mail Bhopal should have been a wake up call, but it is unclear whether chemical plants around the world are any safer a quarter century after the December 1984 disaster — during which some 40 tons of toxic methyl isocyanate gas leaked from a pesticide plant owned by Union Carbide (now part of Dow Chemical), killing 2,259 people immediately and causing lifelong health problems and premature death for tens of thousanchemical plants around the world are any safer a quarter century after the December 1984 disaster — during which some 40 tons of toxic methyl isocyanate gas leaked from a pesticide plant owned by Union Carbide (now part of Dow Chemical), killing 2,259 people immediately and causing lifelong health problems and premature death for tens of thousanChemical), killing 2,259 people immediately and causing lifelong health problems and premature death for tens of thousands more.

The researchers proved that this was caused by chemical «epigenetic» changes to parts of the gene that codes for Hnf4a, making it less active than it should be.

That's in part because the identity of the chemicals used by the gas industry for drilling and fracturing are protected as trade secrets, and because the EPA, based on an exemption passed under the 2005 Energy Policy Act, does not have authority to investigate the fracturing process under the Safe Drinking Water Act.

His team focused on a naturally occurring process that's part of the body's internal housekeeping system, called methylation, which makes chemical modifications to our genome that are strongly influenced by environmental factors.

In one scenario, methane's rise may come in part from a drop in hydroxyl, a chemical that acts as an atmospheric detergent; in the other, the gas is emanating from tropical wetlands flooded by heavy rains in recent years.

Research by Müller et al published in Food Additives & Contaminants: Part A examines chemical leaching into coffee from filter coffee machines and electric kettles.

Indeed, the fetus remains for the most part sedated by low oxygen levels and anaesthetic chemicals that are produced by the placenta, says Lagercrantz.

Surprisingly, circular RNAs — are among the most abundant non-coding RNAs in cells, driven in part by the molecules» unusual chemical stability.

Researchers at Osaka University overcame these limitations with fluorescent SM analogs by joining several fluorescent chemical compounds (fluorophores) that were highly hydrophilic to the hydrophobic lipid part (mainly acyl chains) of the synthetic molecule.

«In practice, and for each unwanted effect, there is a biological part that we know, but this part does not offer a complete picture of the mechanism and perhaps we will be able to fill this gap by «looking at» the chemical structure,» upholds Duran.

Insecticides and other pesticides kill honey bees, either acutely by direct exposure to the chemicals or as part of a group of stressors that kills honeybees,» he said.

To do that, Dove tapped Peter Marra, an ornithologist at the Smithsonian Migratory Bird Center in Washington, D.C. Marra studies bird migrations in part by doing a sophisticated chemical analysis of feathers.

Blood samples from infants who died of Sudden Infant Death Syndrome (SIDS) had high levels of serotonin, a chemical that carries signals along and between nerves, according to a study funded in part by the National Institutes of Health.

Studies in animals indicated that in branches of the nerve that exit from the back of the brain and wrap around various parts of the face and head, overactive cells would respond to typically benign lights, sounds and smells by releasing chemicals that transmit pain signals and cause migraine.

The amendment to the Montreal Protocol phasing down heat - trapping hydrofluorocarbons (HFCs), which was adopted in the early hours of Saturday in the Rwandan capital of Kigali, is in part the result of 7 1/2 years of lobbying and maneuvering by the Obama administration, environmental advocacy community and U.S. industry bent on using the ozone treaty to phase down the climate - forcing chemicals.

Much like his contemporaries in Germany, Ritthausen was part of a growing field, started by a founder of organic chemistry (and inventor of nitrogen - based fertilizers), Justus von Liebig, to look at the chemical basis for naturally occurring substances.

Baughman and his colleagues have been developing substances that serve as artificial muscles (by converting chemical energy into electrical energy) that may someday be able to move prosthetic limbs and robot parts.

The tenderness around an injury is caused in part by the response of these same nerves to chemicals released in the skin.

Led by MIT chemical engineering professor Patrick Doyle and Lincoln Laboratory technical staff member Albert Swiston, the researchers have invented a new type of tiny, smartphone - readable particle that they believe could be deployed to help authenticate currency, electronic parts, and luxury goods, among other products.

This work was funded in part by the U.S. Department of Energy Office of Science, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences and Biosciences.

In the first part of their experiment they simulated the type of cell death that occurs in stroke by adding a chemical to brain cells in a dish.

The center has only two full - time employees and one part - time; until recently the rest of the center's workforce was supplied by Sciences International (SI), a private consulting firm that has been funded by more than 40 chemical industry clients.

This work was supported in part by the National Science Foundation's Chemical and Biological Oceanography, Integrated Carbon Cycle Research, Arctic Natural Sciences, Long - Term Ecological Research, and Ecosystem Ecology programs; NASA's Interdisciplinary Research in Earth Science program; the National Oceanic and Atmospheric Administration; Georgia Sea Grant; the European Union's Seventh Framework Program project GEOCARBON; and the government of the Brussels - Capital Region.

The ultimate goal is to produce pluripotent cells by purely chemical means within the body to regenerate damaged parts and to treat disease.