Researchers determine improved pattern for artificial light-harvesting molecule
...e Foundation, the team of chemists and theoretical physicists ran the simulations over and over until they found the magic number for one particular family of dendrimers: nine. The dendrimers could branch out up to nine times before their ability to funnel light became compromised. The team expects the findings...... a member of the team of U.S. and Italian research physicists that made the discovery. The finding is expected ...r insights into the protein-folding process. The physicists say their approach of looking for fundamental ways to understand universal features of the protein-f...Snapping shrimp drown out sonar with bubble-popping trick, described in Science
...s of the claw banged shut. Now, however, a team of physicists and a biologist have discovered that the noise, in fact, comes from the collapsing of small bubbles generated by the claw's closing motion. The bubbles form through a process called cavitation, which occurs when objects move quickly through fluids. ......ther members of the Livermore development team are physicists Tom Peyser, Chris Darow and Natasha Zaitseva and chemists Joe Satcher and Doug Gary. Lane, who is associate program leader for Livermores Medical Technology Program, has been working on the biomechanical pancreas to manage diabetes for more than fi...Amoebas use "midwives" to reproduce
...which now has two nuclei. A collaborative study by physicists and biologists at the Weizmann Institute has now revealed a third scenario, involving a "midwife" amoeba. Prof. Elisha Moses of the Physics of Complex Systems Department had been studying the mechanical and physical aspects of how living cells separa...Yale physicists have created a "squeezed state" of atoms using Bose-Einstein condensate (BEC), a sample of rubidium atoms so cold that all of the atoms collapse into a single quantum state. The results of their study, published in a recent issue of Science, may lea...New study to compare digital, film mammography in massive $26.5 million effort to save womens lives
...es and Canada. Clinical scientists, statisticians, physicists and others will compare the new digital mammography to standard film mammography in a project eventually involving almost 50,000 women. The grant will go to the American College of Radiology Imaging Network to fund a study titled the Digital Mammogra...Optical tweezers show how DNA uncoils
...ssible to molecules that "read" it. The report by physicists and biologists at Cornell University and the University of Massachusetts appears in the current Proceedings of the National Academy of Sciences (Vol. 99, Issue 4), "Mechanical Disruption of Individual Nucleosomes Reveals a Reversible Multistage R...Physics tip sheet #4 March 13, 2002
... fifteen years, however, there has been a surge in physicists abilities to produce high intensities, 5 to 6 orders of magnitude higher than was possible before. This report suggests a path to new types of lasers with powers many orders of magnitude higher than current technology. Such a laser at extreme high in...Looking for clues about how proteins talk to each other
...hem are structured at the cellular level. Now, two physicists reveal that -- at least in yeast cells -- these interactions are not random, but well organized. This result is published in the May 3, 2002 issue of Science. "Although scientists understand how a given protein interacts with other proteins, the way ...New amino acid discovered; Fundamental building block of life
...s the biological equivalent of physicists finding a new fundamental particle or chemists discovering a new element. Two papers describing the discovery appear in the current issue of the journal Science. Prior to this, scientists h...Scientist detail how brain regulates sensory information
An unusual collaboration between physicists at the University of California, San Diego and psychologists at Vanderbilt University has revealed how the brains of higher animals and probably humans integrate sensory information and motor control signals in way that allows us to heighten our sens...'Rock-paper-scissors' preserves biodiversity in bacterial neighborhoods
...ays. "Because of advances in theory contributed by physicists and increases in computational ability, we're now able to think about how populations interact in space and relax this assumption. We can assume now that organisms actually have a relationship with place, and they interact more with their neighbors t...Physics tip sheet #21 July 10, 2002
...view Letters (Print issue: July 15, 2002) In 1999, physicists at Lawrence Berkeley National Lab reported observing three events amid high energy collisions in which it appeared that a nucleus corresponding to element 118 had been produced; in each case the nucleus had quickly decayed into daughter nuclei. Two y...Infrared antenna for nano-size mapping of crystal vibrations
...ame band of frequencies from entering. The team of physicists consisting of Rainer Hillenbrand (postdoc), Thomas Taubner (doctoral student) and Fritz Keilmann (senior researcher) now shows that the infrared behaviour changes dramatically when the infrared is applied through their antenna, which is the probing n...NIGMS and NSF grants join math and biology
...h NIGMS spurs mathematicians, computer scientists, physicists and engineers to apply their quantitative expertise to biology are described at http://www.nigms.nih.gov/funding/complex_systems.html . NIGMS also recently established a Center for Bioinformatics and Computational Biology to be the focal point for ...$10 Million center for theoretical biological physics created at UCSD by NSF
...al pathways in the assembly of proteins, but allow physicists to develop new principles and models for complex s...erlying laws governing biological systems, just as physicists have gained an understanding of the fundamental laws of physical matter," says Jos N. Onuchic, a pr...Kurt Wthrich of The Scripps Research Institute wins 2002 Nobel Prize in Chemistry
...logical Macromolecules Discovered in 1946 by two physicists working independently--Edward Mills Purcell at Harvard University and Felix Bloch at Stanford University, who shared the 1952 Nobel Prize in physics for their discovery--nuclear magnetic resonance (NMR) refers to the ability of atomic nuclei to reori...Wonderfest science festival returns to Stanford Nov. 2-3
...id the Universe Come From?'' presented by Stanford physicists Savas Dimopoulos and Andrei Linde; ''Do Men and Women Think Differently?'' with psychologists Melissa Adams of UC-Berkeley and Campbell Leaper of UC-Santa Cruz; ''Is Matter Still a Mystery?'' with Nobel physics laureate Martin Perl and chemist John B......ively weak, it is hard to measure it precisely but physicists are continually pushing to smaller scales. A new experiment takes another bite out of the region where gravity could present surprises. Experimentalists moved a cantilever only a few hundreds of micrometers in size over a pattern of gold and silicon ...