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Physics and Astronomy
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Written by xScience.Info
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Wednesday, 27 September 2006 |
 A new theoretical assessment of data taken by the Wilkinson Microwave Anisotropy Probe (WMAP) suggests that the universe -- at least that part of it that can be observed -- is not spherically symmetric, but more like an ellipsoid.
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Life Sciences
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Written by xScience.Info
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Sunday, 24 September 2006 |
 Feverish fruit fly larvae, warmed in a toasty lab chamber, are
giving Cornell researchers a way to watch chromosomes in action and
actually see how genes are expressed in living tissue. Using multiphoton fluorescence microscopy, a technique pioneered at
Cornell by physicist Watt W. Webb, researchers have for the first time
been able to watch chromosomes change their form in order to activate
their genes to synthesize key proteins in fruit fly cells. The advance
could be a significant step toward understanding the basic processes
that underlie gene expression.
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Experimental Methods and Techiques
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Written by xScience.Info
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Sunday, 24 September 2006 |
 In the submicroscopic world -- the domain of elementary particles and
individual atoms -- things behave in the strange, counter-intuitive
fashion governed by the principles of quantum mechanics. Nothing (or so
it seems) like our macroscopic world -- or even the microscopic world
of cells or bacteria or dust particles -- where Newton's much more
reasonable laws keep things sensibly ordered.
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Life Sciences
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Written by xScience.Info
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Thursday, 21 September 2006 |
 Using computer simulations and experimental results, researchers at
the University of Illinois at Urbana-Champaign and the University of
Arizona have identified a key component of the gating mechanism in
aquaporins that controls both the passage of water and the conduction
of ions.
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Physics and Astronomy
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Written by xScience.Info
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Wednesday, 20 September 2006 |
 A group of scientists affiliated with the SuperNova Legacy Survey
(SNLS) have found startling evidence that there is more than one kind
of Type Ia supernova, a class of exploding stars which until now has
been regarded as essentially uniform in all important respects.
Supernova SNLS-03D3bb is more than twice as bright as most Type Ia
supernovae but has much less kinetic energy, and appears to be half
again as massive as a typical Type Ia.
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