Protein simulation can be done three times as fast
...ally need to be done, you should describe it using quantum mechanics." The researchers expect that the intervals will not become much greater than 7 femtoseconds. Even greater intervals result in unrealistic situations. For example, particles come so close together that it is no longer natural and during the...New method for 'visualizing' proteins
...dapted this technology, dubbing it DQC (for double quantum coherence), to deliver pulses of microwave radiation in appropriate sequences in order to measure the distances between two spin labels. These are molecular subunits, each containing an unpaired electron, inserted at precise sites in the protein. DQC...Harden McConnell named winner of 2002 Welch Award in Chemistry
...first scientific breakthrough came when he applied quantum mechanics to chemicalproblems and developed theoretical methods for relating nuclear magnetic resonance (NMR) data to the structure ofmolecules. McConnell modified the equations governing NMR to include the effects of chemical reactions and used the ...Welch Award honors McConnell for insights into physical chemistry, cell membranes
...McConnells first breakthrough came when he applied quantum mechanical methods to chemical problems, developing theoretical methods for relating nuclear magnetic resonance (NMR) data to the structure of molecules. He modified the equations governing NMR to include the effects of chemical reactions, and used t...Physics tip sheet #4 March 13, 2002
...l forms of observed matter have positive energies, quantum field theory allows for the possibility of negative energy densities in some areas of spacetime. If negative energy densities did exist, they would allow for the existence of traversable wormholes, faster-than-light travel, creation of naked singular...Physics tip sheet #3 March 6, 2002
...e to show wave interference in good agreement with quantum predictions. The fullerenes are passed through three gratings made of finely spaced gold wires and found to leave a pattern of peaks and troughs unlike the flat pattern for classical particles. Physics News Update: http://www.aip.org/enews/physnews/...UC Davis mathematician, neuroscientist win Sloan Fellowships
...ties shown by typical tables would give insight on quantum mechanics, Soshnikov said. Mathematicians have made notable progress with random matrix theory in the last ten years. Soshnikov's own work has shown that some rules, previously found by Craig Tracy from UC Davis and Harold Widom from UC Santa Cruz t...Office of Naval Research awards $8.4M to young investigators
...anoelectronic devices that are the basis of future quantum information technology. The research will also lead to device concepts for ultra-wideband and ultra-low-noise amplifiers in radar systems. Dr. Katrina J. Edwards, Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution will investiga...Science's Top Ten: nanoscale computing circuits named top scientific advance of 2001
... a "superatom" of trapped and supercooled atoms in quantum lockstep, was published in a landmark Science article in 1995. Science authors Eric A. Cornell and Carl E. Wieman were awarded the 2001 Nobel Prize in Physics for their work, sharing the prize with Wolfgang Ketterle of MIT. The buzz about BECs co...Chemists spin materials to improve magnetic resonance data
...num, and sodium, the rules of quantum mechanics prevent certain nuclear transitions from taking place, and it is those transitions that would reveal a clearer NMR signal. Typically, researchers must average the test results...UW, PNNL think big, aim small with creation of joint nanotechnology institute
...characterizing materials on the nanoscale, such as quantum dots, nanotubes and nanoporous films. Through EMSL, post-graduate students and professors at the UW will have access to instrumentation and experts that complement and expand university capabilities in nanoscience. PNNL expects to have the worlds m...... cold that all of the atoms collapse into a single quantum state. The results of their study, published in a...ns between the atoms, they were able to reduce the quantum uncertainty in thenumber of atoms in a single well from +/- 50 atoms to +/- 2 atoms. "Quantum state...DFG set up 19 new Graduiertenkollegs
... Bielefeld - Material properties and concepts for quantum formation processing, University of Dortmund - Stimuli, information, decision-making behaviour and allocation, University of Mannheim - Spatial-temporal signalling processes in neurones and cellular biophysics, University of Gttingen - Develop......t likely outcome from the fundamental equations of quantum mechanics would keep a computer busy for the lifetime of the universe. Instead, they came up with the idea of dealing with what Chandler calls trajectories, that is, the entire dynamic process from one state to another. If each possible state is like...Science's Top 10: genome sequencing named top scientific advance of 2000
... Quantum Curiosities: The already-weird world of quantum mechanics got a lot weirder in 2000, as the boundary between the quantum and classical world started to break down. The perplexing idea that objects can have seemingly incom...Clinton names a diverse group of researchers to receive the 2000 National Medals Of Science
...xperimental work in hydrogen. His revelation of a quantum effect that became known as the "Lamb Shift" helped to create the new field of quantum electrodynamics, a key aspect of modern elementary particle physics. Four decades later, Gary Becke...Analysis of Martian meteorite using unique magnetic microscope
...t of the microscope is a SQUID, or superconducting quantum interference device. When cooled to extremely low temperatures, this bit of microelectronic circuitry is the most sensitive detector of magnetic flux known. The SQUID is connected to a pickup coil wound from niobium wires that are a fraction of the t...Stanford researchers win National Science Foundation grants for information technology research
...ic fields, behavior of fluids and weather systems, quantum mechanics and biological processes such as the workings of the brain - by using computers to determine how these systems evolve in space and time. Hesselink will develop topological methods based on mathematical analysis of global data. Results will ......n 20 commercial satellite launches a year -- as "a quantum leap for Guyana into the new millennium". But critics say the country will gain little economically, while rainforest dwellers will be thrown out of their homes, swamps drained, forests cut down and ancient archaeological remains trashed. In the...Biomathematician named first Aurelio professor of mathematics and science at Boston University
...between experimentalists and theorists can lead to quantum leaps in our understanding of difficult problems." "This opportunity will allow me to broaden my efforts in interdisciplinary training throughout the University," says Kopell. "It will give me the opportunity to be much more involved in collaborativ...