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Tag: "nanosecond" at biology news

Scripps research study reveals structural dynamics of single prion molecules

...bout changes in shape of Sup35 taking place on the nanosecond timescale (billionths of seconds). A third technology, single molecule fluorescence coincidence, was used in an unusual way-to prove that the protein species under scrutiny were not oligomeric (consisting of multiple proteins in an aggregate). Th...

Meeting the ethanol challenge: Scientists use supercomputer to target cellulose bottleneck

...some six million time steps over 12 nanoseconds (a nanosecond is one billionth of a second) in order to capture enough of the motion and shape changes of the enzyme as it interacted with the cellulose surface. This is an extremely long time in molecular terms, and the computation-hungry simulations ran for ...

Satellites shed light on global warming

...e sensor times its pulses' journey down to under a nanosecond to calculate the distance to the planet below to a maximum accuracy of two centimetres. ESA has had radar altimeters in orbit since July 1991, when ERS-1 was launched, which was followed by ERS-2 in 1995 and Envisat in 2002 and will continue to launc...

Scientists get best look ever at water-life connection

...ell you that water and proteins must interact on a nanosecond [one billionth of a second] time scale, because th...ut they slow down -- to a speed midway between the nanosecond and picosecond scale -- to connect with proteins. Zhong, an assistant professor of physics, used ul...

Nanosecond-scale release of stinging jellyfish nematocysts

...esicle exocytosis to release kinetic energy in the nanosecond range by a powerful molecular spring mechanism. ...

Mussels evolve quickly to defend against invasive crabs

...that such a response can evolve in an evolutionary nanosecond compared to the thousands of years previously assumed. The paper is called "Divergent induced responses to an invasive predator in marine mussel populations." "It's the blending of ecological and evolutionary time," says Freeman, a Ph.D. candidate ...

Scientists closer to new cancer detection method

...lasts little more than a billionth of a second - a nanosecond - but just long enough to separate it from surrounding signals, according to co-author Nicholas Turro, Ph.D., the William P. Schweitzer professor of chemistry at Columbia University. He also holds professorships in the department of chemical engineer...

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