Daily non-political popular news in brief.

Evolution and the workaround

12-10-2006 · EurekAlert!

At the American Society for Cell Biology 2006 conference, scientists will describe new research indicating that both yeast and cancer cells evolve chromosome duplications to work around lethal stresses.

Keywords: evolution, workaround

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CERN Switches On Neutrino Beam To Gran Sasso
10-02-2006 · ScienceDaily
CERN has switched on a new neutrino beam, aimed through the earth to the INFN Gran Sasso Laboratories some 730km away near Rome. This is the latest addition to a global endeavour to understand this most elusive of particles and unlock the secrets it carries about the origins and evolution of our Universe.
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Scientists crack open stellar evolution
10-26-2006 · EurekAlert!
Using 3-D models run on some of the fastest computers in the world, laboratory physicists have created a mathematical code that cracks a mystery surrounding stellar evolution.
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Brown scientists map structure of DNA-doctoring protein complex
12-06-2006 · EurekAlert!
Mobile DNA, which inserts foreign genes into target cells, is a powerful force in the march of evolution and the spread of disease. Working with the lambda virus and E. coli bacteria, Brown University biologists have solved the structure of a six-protein complex critical to performing this gene-grafting surgery. The technique they developed could be used to reveal the structure of other critical protein complexes, landing the work on the cover of Molecular Cell.
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Does evolution select for faster evolvers?
01-29-2007 · EurekAlert!
A January 29 study in Physical Review Letters suggests the speed of evolution has increased over time because bacteria and viruses constantly exchange transposable chunks of DNA between species, making it possible for life forms to evolve faster than they would if they relied only on sexual selection or random genetic mutation. The Rice University findings come from the first exact solution of a mathematical model of evolution that accounts for cross-species genetic exchange.
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Rickettsia felis, a cat-flea-borne pathogen, sheds light on Rickettsial evolution
03-06-2007 · EurekAlert!
VBI researchers in collaboration with scientists from the University of Maryland School of Medicine have created a new classification system for rickettsia bacteria that may assist researchers in the way they approach the development of diagnostics and vaccines for the virulent rickettsial pathogens. The work has been carried out as part of the PathoSystems Resource Integration Center (PATRIC) project which is led by Dr. Bruno Sobral and Dr. João Setubal from the Virginia Bioinformatics Institute.
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Complex structure observed in Tonga mantle wedge has implications for the evolution of volcanic arcs
04-12-2007 · EurekAlert!
The subduction zones where oceanic plates sink beneath the continents produce volcanic arcs such as those that make up the "rim of fire" around the Pacific Ocean. Although geologists have a pretty good picture of the processes that produce volcanic arcs, a new study finds that the structure of the mantle wedge above the subducting plate may be far more complex than anyone had imagined.
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A new wrinkle in evolution -- Man-made proteins
05-22-2007 · EurekAlert!
Nature, through the trial and error of evolution, has discovered a vast diversity of life from a primordial pool of building blocks. Inspired by this success, a new Biodesign Institute research team, led by John Chaput, is now trying to mimic the process of Darwinian evolution in the laboratory by evolving new proteins from scratch. Using new tricks of molecular biology, Chaput and co-workers have evolved several new proteins in a fraction of the three billion years it took nature.
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Species detectives track unseen evolution
07-18-2007 · EurekAlert!
New species are evading detection using a foolproof disguise -- their own unchanged appearance. Research published in the online open access journal, BMC Evolutionary Biology, suggests that the phenomenon of different animal species not being visually distinct despite other significant genetic differences is widespread in the animal kingdom. DNA profiles and distinct mating groups are the only way to spot an evolutionary splinter group from their look-alike cousins, introducing uncertainty to biodiversity estimates globally.
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September Geology and GSA Today media highlights
08-28-2007 · EurekAlert!
Topics include: discovery of Sudbury impact event debris in Michigan; climate change and dispersal of early modern humans out of Africa; relationship of mantle plumes and supercontinent cycles; relationship of San Andreas fault system activity and the eastern California shear zone; and ramifications of sediment mixing in studying the Great Barrier Reef. An open-access Research Focus on paleoseismology addresses earthquake prediction. The GSA TODAY science article examines climate change, Ethiopian Plateau development, and human evolution.
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Three-way mating game of North American lizard found in distant European relative
10-01-2007 · EurekAlert!
An intricate three-way mating struggle first observed in a species of North American lizard has been discovered in a distant relative, the European common lizard. The two species are separated by 5,000 miles and 175 million years of evolution, yet they share behavioral and reproductive details right down to the gaudy colors of the males.
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