News tagged with sample
Study finds modern dog breeds genetically disconnected from ancient ancestors
Cross-breeding of dogs over thousands of years has made it extremely difficult to trace the ancient genetic roots of today's pets, according to a new study led by Durham University.
May 21, 2012 |
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Origami-inspired paper sensor could test for malaria and HIV for less than 10 cents
Inspired by the paper-folding art of origami, chemists at The University of Texas at Austin have developed a 3-D paper sensor that may be able to test for diseases such as malaria and HIV for less than 10 ...
Chemistry / Analytical Chemistry
Mar 08, 2012 |
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Third lunar mineral - Tranquillityite found in Western Australia
(PhysOrg.com) -- Back in the heyday of the Apollo moon program, hundreds of pounds of rock samples were carted back to Earth by visiting astronauts. Those samples were then pored over more thoroughly by geologists ...
Space & Earth / Earth Sciences
Jan 05, 2012 |
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Yale study concludes public apathy over climate change unrelated to science literacy
Are members of the public divided about climate change because they don't understand the science behind it? If Americans knew more basic science and were more proficient in technical reasoning, would public consensus match ...
May 27, 2012 |
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Shining light on cells' inner workings
(Phys.org) -- Lanrong Bi and Nazmiye Yapici are shining new light on the hidden processes within cells. For their groundbreaking research, Bi, an assistant professor of chemistry at Michigan Technological ...
May 16, 2012 |
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Whale population size, dynamics determined based on ancient DNA
Estimates of whale population size based on genetics versus historical records diverge greatly, making it difficult to fully understand the ecological implications of the large-scale commercial whaling of the 19th and early ...
May 09, 2012 |
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A new glimpse into ancient human history
Analyzing DNA from four ancient skeletons and comparing it with thousands of genetic samples from living humans, a group of Scandinavian scientists reported that agriculture initially spread through Europe because farmers ...
Apr 30, 2012 |
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Fertilizer use responsible for increase in nitrous oxide in atmosphere
University of California, Berkeley, chemists have found a smoking gun proving that increased fertilizer use over the past 50 years is responsible for a dramatic rise in atmospheric nitrous oxide, which is a major greenhouse ...
Space & Earth / Earth Sciences
Apr 02, 2012 |
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Ancient Egyptian cotton unveils secrets of domesticated crop evolution
Scientists studying 1,600-year-old cotton from the banks of the Nile have found what they believe is the first evidence that punctuated evolution has occurred in a major crop group within the relatively short history of plant ...
Apr 02, 2012 |
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Many meat-eating mammals lack sweet tooth, study finds
For all their sharp teeth, many meat-eating mammals lack a sweet tooth, a genetic analysis of a dozen species has shown.
Mar 26, 2012 |
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Indonesian 'Eves' colonised Madagascar 1,200 years ago
Several dozen Indonesian women founded the colonisation of Madagascar 1,200 years ago, scientists said on Wednesday in a probe into one of the strangest episodes in the human odyssey.
Mar 21, 2012 |
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Scientists see red on NASA cuts of Mars missions
NASA said Monday it's not giving up on Mars, but it'll have to get there later and at a lower price.
Space & Earth / Space Exploration
Feb 27, 2012 |
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New microfluidic device could be used to diagnose and monitor cancer and other diseases
Separating complex mixtures of cells, such as those found in a blood sample, can offer valuable information for diagnosing and treating disease. However, it may be necessary to search through billions of other ...
Chemistry / Analytical Chemistry
Feb 22, 2012 |
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Scientists learn how to 'out run damage' with imaging technique
Over the decades X-ray crystallography has been fundamental in the development of many scientific fields. The method has revealed the structure and function of many biological molecules, including vitamins, drugs, proteins ...
Feb 21, 2012 |
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Saltwater crocodile breeders to benefit from genome sequence
(PhysOrg.com) -- The genome sequence of the saltwater crocodile has been completed by an international collaboration of scientists, including researchers from the University of Sydney.
Feb 14, 2012 |
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