http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Two new studies reveal in unprecedented detail how the ribosome interacts with other molecules to assemble new proteins and guide them toward their destination in biological cells. The studies used molecular dynamics flexible fitting (MDFF) to examine the interaction of the ribosome with two prominent molecular partners. http://www.physorg.com/news178207518.html Biology Mon, 23 Nov 2009 14:20:41 EST news178207518 Very tiny wires, called nanowires, made from such metals as silver and gold, may play a crucial role as electrical or mechanical switches in the development of future-generation ultrasmall nanodevices. http://www.physorg.com/news176047225.html Nanotechnology Thu, 29 Oct 2009 22:00:02 EST news176047225 (PhysOrg.com) -- Neutron stars have the potential to play an important role in understanding some of the mysteries of the universe. One of factors that could help lead to an understanding of gravitational waves and the mechanisms involved in giant flares in magnetars is the strength of the crust that forms on the outside of a neutron star. In an effort to better understand the neutron star crusts, Charles Horowitz, at Indiana University in Bloomington, and his colleague Kai Kadau, at Los Alamos National Laboratory in New Mexico, have used molecular dynamics to model neutron stars and come up with improved estimates of the breaking strain. http://www.physorg.com/news162561360.html Physics Tue, 26 May 2009 12:56:45 EST news162561360 (PhysOrg.com) -- In a new study, researchers at the University of Illinois have identified and visualized the signaling pathways in protein-RNA complexes that help set the genetic code in all organisms. The genetic code allows information stored in DNA to be translated into proteins. http://www.physorg.com/news158936293.html Chemistry Tue, 14 Apr 2009 13:58:55 EST news158936293 (PhysOrg.com) -- The speed at which heat moves between two materials touching each other is a potent indicator of how strongly they are bonded to each other, according to a new study by researchers at Rensselaer Polytechnic Institute. http://www.physorg.com/news158859223.html Nanotechnology Mon, 13 Apr 2009 16:34:11 EST news158859223 MIT researchers who study the structure of protein-based materials with the aim of learning the key to their lightweight and robust strength have discovered that the particular arrangement of proteins that produces the sturdiest product is not the arrangement with the most built-in redundancy or the most complicated pattern. Instead, the optimal arrangement of proteins in the rope-like structures they studied is a repeated pattern of two stacks of four bundled alpha-helical proteins. http://www.physorg.com/news152985503.html Nanotechnology Wed, 04 Feb 2009 15:58:50 EST news152985503 (PhysOrg.com) -- Conga lines of atoms wend their way through a crystal, their numbers growing as more and more atoms join the migration. The worm-like lines of atoms randomly converge, forming tangles that evolve into droplets of liquid that signal the beginning of the complicated process known as melting. http://www.physorg.com/news152814434.html Physics Mon, 02 Feb 2009 16:28:02 EST news152814434 Acoustic waves play many everyday roles - from communication between people to ultrasound imaging. Now the highest frequency acoustic waves in materials, with nearly atomic-scale wavelengths, promise to be useful probes of nanostructures such as LED lights. However, detecting them isn't so easy. http://www.physorg.com/news134322564.html Nanotechnology Thu, 03 Jul 2008 16:49:24 EST news134322564