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Mathematical Modeling

Studying random structures with confetti

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TechAndComputer (Oct. 10, 2011) — Chance and probability play a natural role in statistical physics. Inspired by confetti, researchers at the University of Gothenburg, Sweden, are gaining better understanding of random phenomena and refine the tools that can be used to study them.

"The result of small disturbances to random systems can be illustrated by throwing confetti. If simple rules are constructed at a small scale, it is possible to study...

TechAndComputer (Oct. 10, 2011) — Chance and probability play a natural role in statistical physics. Inspired by confetti, researchers at the University of Gothenburg, Sweden, are gaining better understanding of random phenomena and refine the tools that can be used to study them.

"The...

Hedge funds sold stocks quickly while mutual fund investors suffered larger losses during crisis

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TechAndComputer (Aug. 25, 2011) — A new study of stock trading during the financial crisis of 2007 to 2009 found that hedge funds sold their stocks much more aggressively than mutual funds at the first signs of poor performance.

These selloffs occurred in response to falling stock values, the study found. Hedge fund investors withdrew almost three times as much of the money they invested as compared to mutual fund investors.

As a result, the total...

TechAndComputer (Aug. 25, 2011) — A...

Can stock markets regulate themselves? History of markets offers insight into effects of regulation on success of initial public offerings

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TechAndComputer (Aug. 17, 2011) — Whenever crisis threatens the financial markets, voices are loud in calling for greater control. It is dubious, however, whether tighter regulation would actually offer investors better protection against losing their capital. "Economic history shows us that strictly regulated stock markets do not necessarily function better than those that are given a free hand," says historian and economist Carsten Burhop of...

TechAndComputer (Aug. 17, 2011) — Whenever...

Research outlines math framework that could help convert 'junk' energy into useful power

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TechAndComputer (July 20, 2011) — A University at Buffalo-led research team has developed a mathematical framework that could one day form the basis of technologies that turn road vibrations, airport runway noise and other "junk" energy into useful power.

The concept all begins with a granular system comprising a chain of equal-sized particles -- spheres, for instance -- that touch one another.

In a paper in Physical Review E this June, UB...

TechAndComputer (July 20, 2011) — A...

Drug designer: New tool reveals mutations that cause HIV drug resistance

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TechAndComputer (July 11, 2011) — Protease inhibitor drugs are one of the major weapons in the fight against HIV, the virus that causes AIDS, but their effectiveness is limited as the virus mutates and develops resistance to the drugs over time. Now a new tool has been developed to help predict the location of the mutations that lead to drug resistance.

First discovered in 1995, protease inhibitor drugs have dramatically reduced the number of...

TechAndComputer (July 11, 2011) — Protease...