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Latest Statistical mechanics Stories

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2010-07-13 10:25:00

A Purdue University researcher has used "econophysics" to show that under ideal circumstances free markets promote fair salaries for workers and do not support CEO compensation practices common today. The research presents a new perspective on 18th century economist Adam Smith's concept that an "invisible hand" drives a free market economy to a collective good. "It is generally believed that the free market cares only about efficiency and not fairness. However, my theory shows that even...

2010-06-16 22:00:27

An understanding of particle diffusion in the presence of constrictions is essential in fields as diverse as drug delivery, cellular biology, nanotechnology, materials engineering, and spread of pollutants in the soil. When a driving force is applied, displacement of particles occurs as well as diffusion. A paper in the Journal of Chemical Physics, which is published by the American Institute of Physics (AIP), quantifies the effects of periodic constrictions on drift and diffusion in systems...

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2010-05-21 08:37:42

A century after Albert Einstein said we would never be able to observe the instantaneous velocity of tiny particles as they randomly shake and shimmy, so called Brownian motion, physicist Mark Raizen and his group have done so. "This is the first observation of the instantaneous velocity of a Brownian particle," says Raizen, the Sid W. Richardson Foundation Regents Chair and professor of physics at The University of Texas at Austin. "It's a prediction of Einstein's that has been standing...

2010-05-14 12:50:15

Two University of Pennsylvania mathematicians have found solutions to a 140-year-old, 7-dimensional equation that were not known to exist for more than a century despite its widespread use in modeling the behavior of gases. The study, part historical journey but mostly mathematical proof, was conducted by Philip T. Gressman and Robert M. Strain of Penn's Department of Mathematics.  The solution of the Boltzmann equation problem was published in the Proceedings of the National Academy of...

2010-01-28 11:44:00

MADRID, Jan. 28 /PRNewswire/ -- The 2009 BBVA Foundation Frontiers of Knowledge Award in the Basic Sciences category goes to physicist and chemist Richard N. Zare, of Stanford University, and physicist Michael E. Fisher, of the University of Maryland, for their independent, fundamental contributions to describing the world at molecular level. "One has unraveled secrets of nature's building blocks and the underlying interactions between them by enabling us to view what happens at the...

2009-12-09 20:07:51

In a study that elevates the role of entropy in creating order, research led by the University of Michigan shows that certain pyramid shapes can spontaneously organize into complex quasicrystals. A quasicrystal is a solid whose components exhibit long-range order, but without a single pattern or a unit cell that repeats. A paper on the findings appears in the Dec. 10 issue of Nature. Researchers from Case Western Reserve University and Kent State University collaborated on the study. Entropy...

2009-11-11 09:34:00

Washington DC Area IT Services Provider and New Visual Mining Value Added Reseller Provides Unprecedented Value to Customers in Government and High Technology ROCKVILLE, Md., Nov. 11 /PRNewswire/ -- Visual Mining, a leader in business intelligence (BI) dashboard and data visualization solutions, today announced that Xetsa, a leading Washington, DC area information technology services provider, joined the Visual Mining Partner Program as a value-added reseller for NetCharts Performance...

2009-09-22 11:51:00

NEW YORK, Sept. 22 /PRNewswire/ -- At the photo-finish end of the largest and most prestigious global analytics competition ever, the Netflix Prize, The Ensemble applauds BellKor Pragmatic Chaos ("BellKor") on its Grand Prize win, and thanks Netflix for its sponsorship of a contest that demonstrates the true power of crowd sourcing and open collaboration in the arenas of machine learning and advanced analytics. The Ensemble and BellKor were the only two teams out of more than 41,000...

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2009-08-20 09:15:00

Transitions are exciting. And at temperatures close to absolute zero, studying the transition from one quantum phase to another tantalizes physicists looking for a deeper understanding of the fundamental laws of the universe.Now a team of scientists at the University of Chicago has created the first direct images of the transition between phases of ultracold cesium gas, as it changes from normal to superfluid to Mott insulator, making it possible to "see" this phenomenon as it happens."These...

2009-07-29 13:22:19

Most parts of living organisms come packaged with ribbons. The ribbons are proteins"”chains of amino acids that must fold into three-dimensional structures to work properly. But when for any reason the ribbons fold incorrectly, bad things can happen, and in humans misfolded-protein disorders include Alzheimer's and Parkinson's diseases.Scientists have for the past three decades tried to understand what makes proteins fold into functional units and why it happens, and several...