News tagged with physicists

DNA's double stranded stretch

(Phys.org)—Theoretical physicists like to play with very unconventional toys. Manoel Manghi from Toulouse University in France and his colleagues have adopted a seemingly playful approach to examining what happens to a ...

Oct 25, 2012 4.3 / 5 (3) 0 | with audio podcast

How proteins read meta DNA code

Three-quarters of the DNA in evolved organisms is wrapped around proteins, forming the basic unit of DNA packaging called nucleosomes, like a thread around a spool. The problem lies in understanding how DNA can then be read ...

Mar 19, 2013 4.3 / 5 (3) 0

Organic electronics—a hot matter

Organic semi-conductors could revolutionise electronics in various areas. Nowadays, components put out such high performances that they are used in small devices like mobile phones. With larger devices, however, ...

Apr 08, 2013 4 / 5 (3) 0

It pays to cooperate

Many species exhibit cooperative survival strategies—for example, sharing food or alerting other individuals when a predator is nearby. However, there are almost always freeloaders in the population who will take advantage ...

Nov 13, 2012 5 / 5 (2) 0 | with audio podcast

Adhesion disturbed by noise

Imagine a solid ball rolling down a slightly inclined ramp. What could be perceived as child's play is the focus of serious theoretical research by Manoj Chaudhury and Partho Goohpattader, two physicists ...

Dec 17, 2012 5 / 5 (2) 4 | with audio podcast

New calculations solve an old problem with DNA

The normal (B-form) DNA will switch to left-handed DNA when it is physically twisted, or when a lot of salt is added to the solution. Researchers at the University of Luxembourg were able to accurately calculate for the ...

Dec 21, 2012 5 / 5 (2) 0