News tagged with messenger
Model suggests how life's code emerged from primordial soup
Aug 07, 2009 |
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(PhysOrg.com) -- In 1953, Stanley Miller filled two flasks with chemicals assumed to be present on the primitive Earth, connected the flasks with rubber tubes and introduced some electrical sparks as a stand-in for lightning. ...
Genome-wide map shows precisely where microRNAs do their work
Medicine & Health / Neuroscience
Jun 17, 2009 |
5 / 5 (9) |
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MicroRNAs are the newest kid on the genetic block. By regulating the unzipping of genetic information, these tiny molecules have set the scientific world alight with such wide-ranging applications as onions ...
Space scientists set for second spacecraft flyby of Mercury
Space & Earth / Space Exploration
Sep 30, 2008 |
4.4 / 5 (9) |
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NASA's MESSENGER spacecraft, which is toting an $8.7 million University of Colorado at Boulder instrument to measure Mercury's wispy atmosphere and blistering surface, will make its second flyby of the mysterious, ...
Researchers demonstrate that messenger RNA are lost in translation
Aug 23, 2009 |
5 / 5 (7) |
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Case Western Reserve University School of Medicine assistant professor in the Center for RNA Molecular Biology, Jeff Coller, Ph.D., and his team discovered that messenger RNA (mRNA) predominately degrade on ribosomes, fundamentally ...
Cells defend themselves from viruses, bacteria with armor of protein errors
Nov 25, 2009 |
5 / 5 (7) |
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When cells are confronted with an invading virus or bacteria or exposed to an irritating chemical, they protect themselves by going off their DNA recipe and inserting the wrong amino acid into new proteins to defend them ...
MESSENGER team releases first global map of mercury
Space & Earth / Space Exploration
Dec 15, 2009 |
5 / 5 (7) |
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(PhysOrg.com) -- NASA's MESSENGER mission team and cartographic experts from the U. S. Geological Survey have created a critical tool for planning the first orbital observations of the planet Mercury - a global ...
Master Molecular Switch May Prevent the Spread of Cancer Cells to Distant Sites in the Body
Mar 16, 2009 |
4.8 / 5 (6) |
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Researchers at the University of Pennsylvania School of Medicine have identified a master switch that might prevent cancer cells from metastasizing from a primary tumor to other organs. The switch is a protein ...
Magnesium detected in MESSENGER flyby of Mercury (w/Video)
Space & Earth / Space Exploration
Apr 30, 2009 |
4.5 / 5 (6) |
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NASA's MESSENGER spacecraft served up another curveball to a University of Colorado at Boulder team after a second flyby of the hot inner planet Oct. 6 detected magnesium -- an element created inside exploding ...
Researchers use multispectral images to reveal origin and evolution of Mercury
Space & Earth / Space Exploration
Apr 30, 2009 |
5 / 5 (5) |
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Up until last year globes of Mercury were blank on one side. The Mariner 10 spacecraft explored the small planet in three flybys (1974-1975), but since no more than half was ever seen it remained the least ...
Magnetic Tornadoes Could Liberate Mercury's Tenuous Atmosphere
Space & Earth / Space Exploration
Jun 02, 2009 |
4.2 / 5 (6) |
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(PhysOrg.com) -- As the closest planet to the sun, Mercury is scorching hot, with daytime temperatures of more than 800 degrees Fahrenheit (approximately 450 degrees Celsius). It is also the smallest rocky ...
Explained: RNA interference
Nov 12, 2009 |
4.8 / 5 (5) |
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Every high school biology student learns the basics of how genes are expressed: DNA, the cell’s master information keeper, is copied into messenger RNA, which carries protein-building instructions to the ribosome, ...
Molecular freight: Synthetic nanoscale transport system modeled on nature
Dec 21, 2009 |
4.4 / 5 (5) |
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(PhysOrg.com) -- Just like our roads, there is a lot of traffic within the cells in our bodies, because cell components, messenger molecules, and enzymes must also be brought to the right places in the cell. One of these ...
Genomic study yields plausible cause of colony collapse disorder
Aug 24, 2009 |
5 / 5 (4) |
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Researchers report this week that they have found a surprising but reliable marker of colony collapse disorder, a baffling malady that in 2007-2008 killed off more than a third of commercial honey bees in ...
Scientists observe human neurodegenerative disorder in fruit flies
Jun 24, 2009 |
4.8 / 5 (4) |
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A team of scientists from The Scripps Research Institute, Katholeike Universiteit Leuven, and the University of Antwerp, Belgium, among other institutions, has created a genetically modified fruit fly that mimics key features ...
MESSENGER Spacecraft Prepares for Final Pass by Mercury
Space & Earth / Space Exploration
Sep 23, 2009 |
4.8 / 5 (4) |
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(PhysOrg.com) -- NASA's Mercury Surface, Space Environment, Geochemistry, and Ranging spacecraft known as MESSENGER will fly by Mercury for the third and final time on Sept. 29. The spacecraft will pass less ...
