Max Planck researchers win part of Descartes Research Prize 2005
...r sun, and a very strong magnetic field. They emit beams of radiation from two regions above their magnetic poles, using a mechanism that is not completely understood. When a pulsar rotates, we on Earth can receive these regular radio pulses. Because neutron stars have a high inertia, their pulse periods a...Berkeley scientists get first detailed look at Dicer
...energies up to two billion electron volts. X-ray beams at the ALS are typically a hundred million times brighter than those from the best x-ray tubes. When a beam of x-rays is sent through a crystal, the atoms in the crystal cause the x-rays to scatter, creating a diffraction pattern. This diffraction ...Molecule does more than slice and dice RNA
...ecules like Dicer are exposed to x-rays, the x-ray beams are scattered in a way that helps researchers defi...the Advanced Light Source is capable of generating beams of x-rays to very specific wavelengths, which was critical in determining the structure of Dicer. A...Argonne researchers contribute 1000th structure
...k. At the Advanced Photon Source, brilliant X-ray beams travel around a ring two-thirds of a mile in circu...ity, quality and efficiency to the powerful X-rays beams at the APS and advances in technology, automation and software. "They allow us to deliver the greate...One fish, two fish: New MIT sensor improves fish counts
...echnique, survey vessels send high-frequency sonar beams into the ocean, where they dissipate much like the light from a flashlight shining into a darkened room. In contrast, the new system uses low-frequency sonar that can travel much greater distances and still return useful information with signals far...Proteins' subtle 'backrub' motion could have important implications
...ystals of a protein, and the pattern of diffracted beams is analyzed to deduce its structure. Such data is usually collected at synchrotron x-ray sources, with the crystals cooled by liquid nitrogen to temperatures near -300 Fahrenheit. "We were pleased but surprised that these crystal structures at liquid...Georgia Tech develops technology for more compact, inexpensive spectrometers
...ram is recorded by the interference pattern of two beams in a piece of photopolymer. "There were lots of challenges because the light we need to analyze is diffuse in nature," Adibi said. Conventional spectrometers work the best under collimated light (i.e. light moving in only one direction). However, th...Accumulator ring commissioning latest step for spallation neutron source
...lity will produce the world's most intense neutron beams to probe the molecular structures of materials. As a user facility, the SNS is expected to attract researchers from all over the globe. "The ring is the last major accelerator element delivered by one of the partner labs in the six-laboratory project...Mini-synchrotron could increase access to key research tool
...tron prototype since 2004 that would produce X-ray beams in the space of a small office and that could be installed at many research institutions. The prototype, called the Compact Light Source (CLS), demonstrated its feasibility by generating its first X-ray beam on February 23, 2006. The scientists so...Miniature synchrotron produces first light
...udies of protein structure. But synchrotron x-ray beams are now the mainstay of research extending from ma...y, new news that these high-quality, tunable x-ray beams are now available for the university, industrial or clinical laboratory. Unlike the stadium-sized sy...USC, Rice to develop bacteria-powered fuel cells
...e in the 1990s, combines information from multiple beams of light to resolve sample features as small as one-billionth of a meter. In previous studies with Nealson, Lttge used the technique to examine how the cigar-shaped Shewanella attach themselves to crystalline surfaces. The researchers found that Shew...NSLS student-researcher talks at the March APS Meeting
... the facility to perform research using its bright beams of x-ray, ultraviolet, and infrared light. This year, four of these students will be presenting the results of their research at the March meeting of the American Physical Society (APS) in Baltimore, Maryland. Michael DiBiccari, a senior at Hauppauge...APS lecturer shows rare video of 'teacher-student' immune cell interactions in live animal
...d powerful multi-photon microscopes using infrared beams to image fluorescent cells in living tissues became commercially available in the late 1990s. That prompted von Andrian to embark on a project to use the technology to study the immune system. He set up his lab at the CBR Institute and developed a st...Robots manipulating animal behaviour
...s followed their artificial cousins towards bright beams of light and congregated there. This process took up to two hours, but it showed how humans might soon be able to manipulate the behaviour of a whole colony of insects. A trick that would delight pest-controllers the world over! Two side-projects und...Scientists take 'snapshots' of enzyme action
...echanism, the scientists used high-intensity x-ray beams at the National Synchrotron Light Source (NSLS) to identify the positions of individual atoms and produce crystal structures of the enzyme, the enzyme plus its cofactor, and the enzyme plus the cofactor plus the compound to be oxidized (the substrate...Multi-million dollar machines promise bright future for medical research
...h facility in Australia. Flow cytometry uses laser beams and advanced optics and electronics to count, analyse and purify many kinds of cells that make up tissues in humans and animals to help scientists gain a better understanding of their functions. Dr. Adrian Smith, manager of Centenary's Flow Cytometry...When it comes to gene transcription, random pauses arent quite so random, study finds
...ing individual molecules of DNA and RNAP in minute beams of infrared light. "Our measurements are accurate to one-tenth of a nanometer--the width of a single hydrogen atom," Block explained. "When you study an RNAP enzyme at that scale, you discover that it moves along the DNA for a while, and then for no ...Suprising discovery may lead to new understanding of water quality
...ides the western hemisphere's most brilliant x-ray beams for research, the team was able to make this new discovery. These x-rays enabled scientists to pursue new knowledge about the structure and function of materials and develop new methods for scientific study. Using the APS, the team was able to tak...Snakes' virtual glasses, leopard spots and all-optical transistors
...d in a layer of polymer. The researchers shine two beams of light on the structure: a signal beam and a control beam. When the beams strike the patterned film they produce plasmons, which are essentially blobs of electron gas near th......crystallised. The crystals are then bombarded with beams of X-rays and data about the protein's make-up is gradually assembled and interpreted until a full picture of the structure emerges. This same approach was used by CSIRO scientists to determine the structure of an important protein on the surface of ...