Navigation Links
Story tips from the Department of Energy's Oak Ridge National Laboratory, August 2010
Date:7/29/2010

utron interactions with isotopes of platinum contradict a basic assumption underpinning random matrix theory, nuclear physics models and quantum chaos. For more than a half century, scientists have assumed that highly excited states in intermediate- to heavy-mass nuclides are chaotic, and that data support this assumption. However, new data from the Oak Ridge Electron Linear Accelerator strongly disagree. The new results suggest that the roughly 200 nucleons inside the platinum nuclei studied act in unison to exhibit regular rather than chaotic properties. Given the relatively high energy and large number of nucleons involved, such collective behavior is totally unexpected and unexplained. A possible explanation is that an even more fundamental tenet of theory--something known as form invariance--is violated. "Either way, as these assumptions underpin the nuclear statistical model, the impact of these new findings could be very broad throughout nuclear physics, nuclear astrophysics and in applications such as nuclear energy," said ORNL physicist Paul Koehler. [Contact: Bill Cabage, (865) 574-4399, cabagewh@ornl.gov]

DNA REPAIR -- Molecular machines . . .

Ivaylo Ivanov of Georgia State University and colleagues used Jaguar http://www.nccs.gov/computing-resources/jaguar/, a Cray XT high-performance computing system at Oak Ridge National Laboratory, to elucidate the mechanism by which accessory proteins called sliding clamps are loaded onto DNA strands and coordinate enzymes that enable gene repair or replication. "This research has direct bearing on understanding the molecular basis of genetic integrity and the loss of this integrity in cancer and degenerative diseases," says Ivanov, whose work appeared in a recent issue of the Journal of the American Chemical Society. Although clamp loaders from the different kingdoms of life (bacteria, viruses, animals, etc.) share many architectural features, they dif
'/>"/>

Contact: Ron Walli
wallira@ornl.gov
865-576-0226
DOE/Oak Ridge National Laboratory
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. Children with brain injuries have problems with story-telling
2. Story tips from the Department of Energys Oak Ridge National Laboratory July 2010
3. Bird book with ties to Philadelphia natural history museum wins international award
4. Story tips from the US Department of Energys Oak Ridge National Laboratory -- June 2010
5. Cleveland Museum of Natural History scientist announces new horned dinosaur
6. Not a fish story: Protected corals increase fishing profits
7. Lake-bed trails tell ancient fish story
8. To have or not to have ribs (a vertebrate story)
9. National Honor to History-Making Undersea Explorer
10. Story tips from the US Department of Energys Oak Ridge National Laboratory April 2010
11. Giant sequoias yield longest fire history from tree rings
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/30/2014)... you want your doctor to know what goes wrong with ... good idea to know what "normal" actually is. That,s where ... of the FASEB Journal comes in. ... transcriptomea key set of molecules that can help scientists "see" ... time. What,s more, they found never-before-detected gene activity and that ...
(Date:9/30/2014)... threats in today,s ocean. From overfishing and pollution ... ecosystems are disappearing at unprecedented rates around the ... surrounding the island of Moorea in French Polynesia ... coral guard-crabs. New research from the National Museum ... McKeon and the museum,s predoctoral fellow Jenna Moore ...
(Date:9/29/2014)... that the exposure to tar tended to be lower ... Similarly, exposure to nicotine tended to be lower. ... cigarette in several countries around the world. Previous studies ... in the smoke of these cigarettes are lower than ... chemicals in the smoke are not necessarily linked to ...
Breaking Biology News(10 mins):Scientists identify which genes are active in muscles of men and women 2Smithsonian scientists discover coral's best defender against an army of sea stars 2Slim cigarette smokers not exposed to more harmful chemicals 2
... of Salamanca and another from Yale University have shown that ... beershebensis , a lizard species from the Negev Desert in ... less and catch less mobile and different prey if they ... predicted this result, but until now there had been very ...
... National Primate Research Center, Emory University, have successfully ... step toward unlocking the genetic secrets of pair ... will enable scientists to perform a host of ... mechanisms of social bonding and other complex social ...
... is available in German . , Brown adipose ... mitochondria, miniature power stations which among other things can ,burn, ... that of a battery, which then provides energy for cellular processes. ... They go full steam ahead all the time. The energy released ...
Cached Biology News:Lizards change their diet to avoid predators 2Yerkes researchers create first transgenic prairie voles 2Brown fat cells make 'spare tires' shrink 2
(Date:9/30/2014)... Md. , Sept. 30, 2014  RegeneRx ... today announced that it has received a Canadian ... by Actin-Sequestering Peptides.  This patent includes claims using ... numerous other actin-sequestering peptides for these purposes.  The ... About RegeneRx Biopharmaceuticals, Inc. ( www.regenerx.com ) ...
(Date:9/30/2014)... Switzerland (PRWEB) September 30, 2014 ... software solutions for drug discovery and related ... FUNGITECT consortium has chosen Genedata Selector as ... sequencing (NGS) data. FUNGITECT is a European ... invasive fungal diseases via individualized anti-fungal drug ...
(Date:9/30/2014)... and ROCKVILLE, Md., Sept. 30, 2014 ... focusing on commercializing market-relevant biohealth innovations and increasing access ... , announced today that venture capitalist, Tania Fernandez ... strategic advisor. Dr. Fernandez will be a member of ... which will provide up to $50 million in seed ...
(Date:9/30/2014)... -- The overall research objective was to capture ... use. Most researchers outsource NGS technologies; however, in-house ... the next 12 months. Data accuracy and operating ... instruments. Disease-related research is the dominant use for ... surge, with half of the respondents planning to ...
Breaking Biology Technology:RegeneRx Receives Canadian Patent for Inhibition or Reversal of Skin Aging 2FUNGITECT Consortium Adopts Genedata Selector as Data Analysis Platform for Anti-fungal R 2FUNGITECT Consortium Adopts Genedata Selector as Data Analysis Platform for Anti-fungal R 3Seasoned Life Sciences Venture Capitalist Tania Fernandez Joins BHI to Help Manage New BioHealth Gap Fund 2Global Next-generation Sequencing Trends 2
... 2011 Clinicians now have a new tool to help ... -- one of the most common sexually transmitted infections in ... BD (Becton, Dickinson and Company), announced today that it received ... first fully automated molecular tests to detect and differentiate HSV ...
... 2011 The Japanese nuclear crisis has caused a ... not only in Japan, but as far away as ... iodide does not provide generalized radiation protection because it ... bombarded with orders as the radiation hysteria mounts. ...
... (Nasdaq: VRML ) – Vermillion, a molecular ... coverage March 23, 2011 on Vermillion. This ... at Stephens by contacting, Scott Gleason at scott.gleason@stephens.com ... Vermillion, Inc. is dedicated to the discovery, development and ...
Cached Biology Technology:BD Diagnostics Receives FDA Clearance for First Fully Automated Molecular Assays for HSV1 and HSV2 from Clinician-Collected External Anogenital Lesion Specimens 2Shortages of Potassium Iodide as Radiation Panic Drives Demand 2Stephens Initiates Coverage on Vermillion 2Stephens Initiates Coverage on Vermillion 3
... Motic's B3 series of microscopes offer ... microscope required for laboratory work. Equipped with ... Super Contrast (ASC) objectives. The B3 is ... The Siedentopf binocular tube eliminates the need ...
... SYBR Green II RNA gel ... gel stain that has bright fluorescence when ... gels, making it ideal for use with ... scanners or standard UV transilluminators. A 500 ...
... SYBR Green II RNA gel stain ... has bright fluorescence when bound to RNA and ... use with either formaldehyde/agarose or polyacrylamide gels using ... stains 100 minigels. A 500 µL unit size ...
... Glutathion-S-transferases (GST) are a group ... the detoxification processes. The GSTs are ... Pi, Teta and microsomal. The classes ... and s Sample Size: ...
Biology Products: