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Latest Isotopes Stories

2011-10-03 22:27:06

Law enforcement may have a new crime-solving tool, courtesy of geoscientists. About five years ago, scientists coined the word "isoscape" to describe a new kind of map: a spatial distribution of stable isotope ratios (from elements such as carbon, hydrogen, oxygen, nitrogen and strontium) in different parts of the world, based on known ways that these isotopes behave in the environment. Different isotopes tell different stories – carbon can help identify diet, whereas hydrogen and...

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2011-06-30 07:38:19

An international team of scientists, including Dr Chris Coath from the University of Bristol, have measured oxygen isotopes in solar wind, captured by NASA's Genesis mission, to infer the isotopic composition of the Sun, and, by inference, the solar system as a whole. Their results are published in Science. NASA's Genesis mission crash-landed back on Earth in 2004.  The spacecraft spent more than two years in orbit around the sun collecting solar wind, which consists of charged...

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2011-05-20 12:50:41

National Science Foundation awards rapid-response grants to establish ocean radionuclide levels from FukushimaAmong the casualties of the March 11, 2011, earthquake and resulting tsunami in Japan was the country's Fukushima Daiichi nuclear power plant.A result of the loss of electricity, overheating at the power plant led to significant releases of iodine, cesium and other radioisotopes to the environment.Japanese officials recently raised the severity of the nuclear power plant incident to...

2011-04-11 07:00:00

WAYNE, Pa. and WEST CHESTER, Pa., April 11, 2011 /PRNewswire/ -- VitaminSpice (OTCBB: VTMS) (German WKN: AOYE4L) (www.vitaminspice.net) and Clean Age Minerals, Inc. a wholly owned subsidiary of Daleco Resources, Inc. (OTCBB: DLOV) (www.DalecoResources.com) have executed a definitive agreement to work together to produce products based on Clinoptilolite, a naturally occurring mineral in the Zeolite family with unique abilities to remove toxins including heavy metals and radiation from...

2010-04-07 00:00:00

ST. LOUIS, April 7 /PRNewswire-FirstCall/ -- Sigma-Aldrich® (Nasdaq: SIAL) announced today that it has signed an agreement with New Mexico Highlands University through its licensee, Highlands Stable Isotope Corp. (HSI), to exclusively distribute a novel set of patented stable isotope labeled synthetic reagents (www.sigma-aldrich.com/sinext). Under the terms of the agreement, HSI, a leader in the synthesis of amino acids, natural products, monomers for the materials...

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2009-12-04 08:15:11

Isotope analysis provides accurate information The analysis of carbon and oxygen isotopes embedded in tree rings may shed new light on past climate events in the Mackenzie Delta region of northern Canada. Scientists have long looked at the width of tree rings to estimate temperature levels of past years. Larger rings indicate more tree growth in a season, which translates into warmer summer temperatures. But the analysis of carbon and oxygen isotopes in tree rings can also provide accurate...

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2009-07-09 06:00:00

The Earth has experienced many turning points over its 4.5-billion-year history, such as periods of extreme temperature changes, asteroids and the arrival and disappearance of various life forms.  But one of the most monumental events was the Cambrian-era explosion of life some 540 million years ago, when complex, multi-cellular life burst out all over the planet. Scientists point to this critical period as leading to life as we know it today, although its precise causes were not...

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2009-07-07 16:40:00

Freshwater fish are a major part of the diet of many peoples around the world, but it has been unclear when fish became a significant part of the year-round diet for early humans. Chemical analysis of the protein collagen, using ratios of the isotopes of nitrogen and sulphur in particular, can show whether such fish consumption was an occasional treat or part of the staple diet.The isotopic analysis of the diet of one of the earliest modern humans in Asia, the 40,000 year old skeleton from...

2009-06-29 16:55:00

Isotopes, the atomic clues used to solve crimes, date ancient artifacts and identify chemicalsWhether it's the summer grass that tickles your feet or the red Bordeaux smacking on your palette, nearly every part of the world around you carries special chemical markers. These markers, called isotopes, can tell scientists where the molecules that compose a substance are from, where they traveled, and what happened to them along the way. But doing these analyses has been complex and costly. Now,...


Word of the Day
tessitura
  • The prevailing range of a vocal or instrumental part, within which most of the tones lie.
This word is Italian in origin and comes from the Latin 'textura,' web, structure.