Daily non-political popular news in brief.
Could USA presidential DNA trail reveal Middle-Eastern origins?
03-28-2007 · EurekAlert!University of Leicester study into ancestry of Thomas Jefferson shows rare class of DNA.
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- Prehistoric origins of stomach ulcers uncovered
02-07-2007 · EurekAlert!
Scientists have discovered that the ubiquitous bacteria that causes most painful stomach ulcers has been present in the human digestive system since modern man migrated from Africa over 60,000 years ago. They compared DNA sequence patterns of humans and the Helicobacter pylori bacteria now known to cause most stomach ulcers and found that the genetic differences between human populations that arose as they dispersed from Eastern Africa over thousands of years are mirrored in H.pylori.
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- Sperm proteome gives “tantalising glimpse” towards the origin of sex
11-12-2006 · University of Bath
The first ever catalogue of the different types of proteins found in sperm could help reveal the origins of sex and explain some of the mysteries of infertility, say scientists in the Department of Biology & Biochemistry.
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- Sperm proteome gives 'tantalizing glimpse' towards the origin of sex
11-12-2006 · EurekAlert!
The first ever catalogue of the different types of proteins found in sperm could help reveal the origins of sex and explain some of the mysteries of infertility, say scientists.
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- NASA eyes warm sea surface temperatures for hurricanes
08-17-2007 · EurekAlert!
Sea surface temperatures are one of the key ingredients for tropical cyclone formation and they were warming up in the Gulf of Mexico, Caribbean and eastern Atlantic Ocean by the middle of August. As a result, they helped spawn Hurricane Dean in the central Atlantic, and Tropical Storm Erin in the Gulf of Mexico, both during the week of Aug. 13.
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- Beyond the DNA: Chemical signatures reveal genetic switches in the genome
02-04-2007 · EurekAlert!
Investigators from the Ludwig Institute for Cancer Research (LICR) and the University of California, San Diego (UCSD) have made a breakthrough in identifying functional elements in the human genome, according to a report published online today in Nature Genetics.
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- Oceans reveal secrets of viruses
12-02-2006 · Science News Online
Scientists have completed the first survey of virus DNA in oceans around the world.
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- DNA analysis reveals rapid population shift among Pleistocene cave bears
02-19-2007 · EurekAlert!
Studying DNA obtained from teeth of ancient cave bears, researchers have been able to identify a shift in a particular population of the bears inhabiting a European valley in the late Pleistocene era. The findings illustrate the ability of DNA sequence analysis to reveal aspects of animal population dynamics in the distant past and potentially illuminate the influence of human migrations in animal population changes.
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- Evolving complexity out of 'junk DNA'
02-11-2008 · EurekAlert!
'Junk DNA' could hold the secret of the evolutionary origin of complex animals, according to new research from Dartmouth College and the University of Bristol.
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- ESRF helps reveal the origin of the Solar System
12-15-2006 · EurekAlert!
Particles returned to Earth last January by the Stardust spacecraft from comet Wild two are yielding precious information about the origin of the solar system, thanks to the X-rays produced at several of the world's synchrotron facilities, including the ESRF. Although the particles are tiny, the beams available at synchrotrons can be even smaller, enabling researchers to illuminate the cometary material and determine the distribution of elements within the particles without damaging them.
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- The origins of immunity?
08-25-2007 · Science News Online
In social amoebas, sluglike clusters of usually independent organisms, certain cells take on a protective role that hints at the origin of immune systems in higher animals.
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