Sentences with phrase «chemical analysis showed»

Chemical analysis showed them to be about 4,700 years old, proving that the ice cap had reached its smallest extent in nearly five millenniums.

More than a year of intensive chemical analysis showed that the particles were definitely composed of organic matter from the soil.

Chemical analysis showed that the ash was volcanic fallout from the Thera eruption, but instead of resting in neat layers, the ash had washed into peculiar places: a broken, upside - down pot; the courtyard's drain; and one long, continuous film in the main street outside.

Chemical analysis showed that the meteorite contains xanthine and uracil, substances called nucleobases that are necessary for RNA and DNA to form their base pairs as part of their replication process.

Chemical analysis showed that its structure resembled that of a protein found on T cells.

A chemical analysis showed that nearly 80 % of those filaments were made of polyester or acrylic, compounds common in textiles.

BEE STICKY Chemical analyses show that a barbed bone point from Germany dating to around 13,000 years ago, shown from two sides, contains remnants of a beeswax glue near its base, left.

An 11th - century carving from Mongolia of the Buddhist god Vaiśravana was fashioned from a meteorite fragment, a chemical analysis shows.

Not exact matches

For Golden Rice β - carotene, analysis of serum samples by liquid chromatography / atmospheric pressure chemical ionization - mass spectrometry (23) showed that the labeled β - carotene was absorbed intact after consumption of the cooked Golden Rice.

After years of further analysis and debate, many astrobiologists think that three of those four can be shown to be the result of nonliving chemical or geological activity.

Then, chemical analysis of water samples collected from boreholes showed that fluids flows northeast before emerging at Baby Bare, 52 kilometers away.

Chemical analysis of her hair shows a dramatic change in diet, as well as regular doses of coca leaves and alcohol from a special ritual beer.

BIG HIT A new analysis of moon and Earth rocks shows that the two bodies have slightly different chemical makeups, supporting the hypothesis that an object the size of Mars slammed into Earth, forming the moon.

Chemical analyses of ocean cores show that the Southern Ocean drew down at least that much CO2 millions of years ago during glacial periods.

Analysis of phase - change materials showed that they work because of a particular kind of chemical bonding, called resonant bonding — a type of bond in which electrons flip back and forth between several adjacent atoms.

As of now, they still have to undergo a laboratory analysis to see which chemicals show up.

Using carbon dating and chemical analysis, researchers from Northumbria University, Newcastle have shown that significant changes in dust levels occurred in Romania around 6,100 years ago, despite the climate in Eastern Europe being relatively wet at this time, indicative of an extraregional source of such dust, most likely to be from the Sahara.

Chemicals in toys: An Environmental Health News analysis of thousands of reports from America's largest companies shows that toys and other children's products contain low levels of dozens of industrial chemicals, including some unexpected ingChemicals in toys: An Environmental Health News analysis of thousands of reports from America's largest companies shows that toys and other children's products contain low levels of dozens of industrial chemicals, including some unexpected ingchemicals, including some unexpected ingredients.

However, 10 years ago this idea was challenged when analyses of glass beads attributed to Ile - Ife showed that some had a chemical composition very different from that of known glass production areas.

Chemical analyses of Wainman's bones showed high levels of lead exposure, a sign that he was wealthy, as more valuable items during this time, such as pewter and glazed wares, contained more lead.

But U.S. officials worried that would ignore risk analysis, which bans chemicals only if enough data show they're dangerous.

Genetic analysis of the activated cells in the two groups of mice showed that the neurons triggered by a full belly released glutamate, a chemical that nerve cells use to signal one another, while the neurons triggered by hunger released a different neurotransmitter, known as GABA.

For example, she says that a chemical analysis — looking for actual pigment molecules — is necessary to show for sure that these are pigment cells.

Analysis of that sample showed that early Mars offered environmental conditions favorable for microbial life, including the key elemental ingredients for life and a chemical energy source such as used by some microbes on Earth.

The chemical analysis of the atheroma shows that the fatty acids from the cholesterol esters are 74 % unsaturated (41 % is polyunsaturated) and only 24 % are saturated.

Chemical analysis soon showed that lovastatin and monacolin K are identical.

They have published their Certificate of Analysis on Amazon, showing the actual chemical analysis of their Analysis on Amazon, showing the actual chemical analysis of their analysis of their product.

Through a combination of genetic analysis and experimentation, Berenbaum has shown that plants evolve to create natural defenses, like chemical toxins to ward off pests, and that insects in turn evolve to overcome these defenses.

Chemical analysis, Hoover argues, shows no evidence that the fossils are of organisms that infiltrated the meteorites after they arrived on Earth.

I have no argument with that whatsoever — trace analysis certainly shows the speed of diffusion of a particular chemical through the various climate compartments.

a.) Analysis of the Allende meteorite showed that the Solar System formed directly from material that retained the chemical and isotopic signature of supernova debris: http://www.omatumr.com/Data/1975Data.htm