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Search results for Brownian motion

Nanophysics Jan 9, 2012

Peering into the interfaces of nanoscale polymeric materials

(Âé¶¹ÒùÔºOrg.com) -- The development of polymer nanostructures and nanoscale devices for a wide variety of applications could emerge from new information about the interplay between nanoscale interfaces in polymeric materials, ...

Mathematics Oct 31, 2011

Mathematically detecting bubbles before they burst

From the dotcom bust in the late nineties to the housing crash in the run-up to the 2008 crisis, financial bubbles have been a topic of major concern. Identifying bubbles is important in order to prevent collapses that can ...

General Âé¶¹ÒùÔºics Oct 7, 2011

Eddies in Einstein's formula

(Âé¶¹ÒùÔºOrg.com) -- How does a microscopic particle behave in a liquid? New results published in the journal Nature show that Einstein’s formula for describing this situation needs a little adjustment. This will in turn ...

Nanophysics May 30, 2011

NIH grant ratchets up ASU research in molecular motors

Empowered by a $1.2 million grant from the National Institutes of Health (NIH), Arizona State University scientist Wayne Frasch is deciphering how one of the world’s smallest molecular motors works in living cells. In ...

Biochemistry May 25, 2011

Where no lab has gone before: Single-Molecule Electrokinetic Traps

(Âé¶¹ÒùÔºOrg.com) -- To study the behavior of large protein complexes and long DNA chains in solution, researchers use so-called molecular traps. However, earlier traps have proven ineffective when working with small molecules ...

General Âé¶¹ÒùÔºics May 19, 2011

'Kinks' in tiny chains reveal Brownian rotation

(Âé¶¹ÒùÔºOrg.com) -- Rice University researchers have created a method to measure the axial rotation of tiny rods. The technique detailed in a paper by Sibani Lisa Biswal and her colleagues appears this month in the journal Âé¶¹ÒùÔºical ...

Bio & Medicine Apr 27, 2011

An overlooked detail may invalidate the results of some prior experiments with nanoparticles

(Âé¶¹ÒùÔºOrg.com) -- As any bench scientist will tell you, experimental design can be the very devil. Try as one might, it can be difficult to recognize, much less eliminate, the many extraneous factors that might bias an experiment. ...

Earth Sciences Feb 24, 2011

Scientists say ocean currents cause microbes to filter light

(Âé¶¹ÒùÔºOrg.com) -- Adding particles to liquids to make currents visible is a common practice in the study of fluid mechanics, one that was adopted and perfected by artist Paul Matisse in sculptures he calls Kalliroscopes. Matisse’s ...

General Âé¶¹ÒùÔºics Feb 2, 2011

Tiny heat engine may be world's smallest

(Âé¶¹ÒùÔºOrg.com) -- Steam engines, combustion engines, and diesel engines are all different types of heat engines, which operate by converting heat energy into mechanical work. Although heat engines have existed for a long time, ...

General Âé¶¹ÒùÔºics Jan 25, 2011

Dynamic systems in living cells break the rules

There is considerable interest in understanding transport and information pathways in living cells. It is crucial for both the transport of, for example, medicine into cells, the regulation of cell life processes and their ...

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