The rate of chemical processes in cells is dictated by the speed of movement (diffusion) of molecules needed for a given reaction. Using a versatile method developed at the Institute of Physical Chemistry of the Polish Academy ...
Biochemistry
Jan 31, 2013
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The Amazon rainforest, energy grids, and cells in the human body share a troublesome property: They possess multiple stable states. When the world's largest tropical forest suddenly starts retreating in a warming climate, ...
General Physics
Jan 6, 2013
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(Phys.org)—Ecologists in the University of Georgia Odum School of Ecology have found that evolutionary diversity can be an effective method for identifying hotspots of mammal biodiversity. In a paper published Oct. 17 in ...
Ecology
Oct 17, 2012
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European scientists advanced an important field of mathematics describing the behaviour of numerous physical and biological systems.
Mathematics
Oct 11, 2012
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(Phys.org)—A widely-used tool for studying cellular structure – indeed, a technique in use throughout biology – phase contrast microscopy converts optical phase shifts to changes in brightness. At the same time, several ...
(Phys.org) -- The universe is a marvelously complex place, filled with galaxies and larger-scale structures that have evolved over its 13.7-billion-year history. Those began as small perturbations of matter that grew over ...
Astronomy
May 22, 2012
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Roughly 180 million years ago, during the height of the Jurassic period, the Earth's magnetic field flipped, bringing the magnetic north pole once again into the Northern Hemisphere.
Earth Sciences
May 17, 2012
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Scientists discover that certain materials like silicon or gold exhibit a surprisingly large refractive index for extremely high energetic gamma-rays.
Condensed Matter
May 14, 2012
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More than a 150 years ago, before Neptune was ever sighted in the night sky, French mathematician Urbain Le Verrier predicted the planet's existence based on small deviations in the motion of Uranus. In a paper published ...
Astronomy
May 10, 2012
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An international team that includes University of British Columbia physicists has used ultra-fast laser pulses to identify the microscopic interactions that drive high-temperature superconductivity.
Superconductivity
Mar 29, 2012
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