News tagged with envelope
Winning While Losing: New Strategy Solves 'Two-Envelope' Paradox
(PhysOrg.com) -- Researchers from Australia have taken a step toward resolving a seemingly simple yet unsolved paradox known as the "two-envelope" problem. They’ve worked out a new strategy that can enable ...
Aug 18, 2009 |
3.6 / 5 (34) |
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Mysterious Planet-like Object Challenges Simple Definition, Reveals Its Surprising Identity
(PhysOrg.com) -- A mysterious planet-like object orbiting a not-quite-starlike "brown dwarf" is the most recent enigma discovered by astronomers with their ever-more powerful telescopes. Kamen Todorov, a graduate ...
Apr 06, 2010 |
4.6 / 5 (24) |
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Hidden Territory on Mercury Revealed
The MESSENGER spacecraft's third flyby of the planet Mercury has given scientists, for the first time, an almost complete view of the planet's surface and revealed some dramatic changes in Mercury's comet-like ...
Space & Earth / Space Exploration
Nov 04, 2009 |
4.8 / 5 (20) |
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Gaseous halos of galaxies are much larger, more massive than the distribution of stars within the galaxy
New, high-precision equipment orbiting Earth aboard the Hubble Space Telescope is now sending such rich data back to astronomers, some feel they are crossing the final frontier toward understanding galaxy ...
Nov 17, 2011 |
4.8 / 5 (9) |
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Team finds smallest transiting extrasolar planet ever
The CoRoT satellite has discovered a planet only twice as large as the Earth orbiting a star slightly smaller than the Sun. It is the smallest extrasolar planet (planet outside our solar system) whose radius ...
Feb 03, 2009 |
5 / 5 (7) |
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HIV protein unveils vaccine target
(PhysOrg.com) -- An international study headed by a UC Davis scientist describes how a component of a potential HIV vaccine opens like a flower, undergoing one of the most dramatic protein rearrangements yet ...
Medicine & Health / HIV & AIDS
Mar 31, 2011 |
5 / 5 (4) |
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DNA 'off switch' may reverse premature aging
The secret to preventing or reversing premature aging may be found in a DNA “off switch” that humans share with common yeast, according to new research from the University of Toronto.
Jun 15, 2011 |
4.5 / 5 (4) |
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Chromosomes dance and pair up on the nuclear membrane (w/ Video)
(PhysOrg.com) -- Meiosis - the pairing and recombination of chromosomes, followed by segregation of half to each egg or sperm cell - is a major crossroads in all organisms reproducing sexually. Yet, how the ...
Nov 13, 2009 |
4.7 / 5 (3) |
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New findings detail how virus prepares to infect cells
(PhysOrg.com) -- Researchers have learned the atomic-scale arrangement of proteins in a structure that enables a virus to invade and fuse with host cells, showing precisely how the structure morphs with changing ...
Dec 01, 2010 |
4.3 / 5 (3) |
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How cells handle broken chromosomes
(PhysOrg.com) -- After being recognized and initially processed by the cellular machinery, the broken chromosome is extensively scanned for homology and the break itself is later tethered to the nuclear envelope. Thus the ...
Feb 13, 2009 |
4.5 / 5 (2) |
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Matrix protein key to fighting viruses
Researchers from Durham University's Centre for Bioactive Chemistry are developing methods that show how proteins interact with cell membranes when a virus strikes. Using their approach, the team hopes to ...
Apr 29, 2009 |
5 / 5 (1) |
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Research reveals novel transport mechanism for large ribonucleoproteins
The movement of genetic materials, such as RNA and ribosomes, from the nucleus to the cytoplasm is a critical component in a cell's ability to make the proteins necessary for essential biological functions. Until now, it ...
May 10, 2012 |
5 / 5 (1) |
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A natural approach for HIV vaccine
(PhysOrg.com) -- For 25 years, researchers have tried and failed to develop an HIV vaccine, primarily by focusing on a small number of engineered "super antibodies" to fend off the virus before it takes hold. So far, these ...
Medicine & Health / HIV & AIDS
Mar 15, 2009 |
4 / 5 (1) |
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