Posts tagged with "Physical & Life Sciences"

Separating signal and noise in climate warming

Nov. 17, 2011 -  
LIVERMORE, Calif. -- In order to separate human-caused global warming from the "noise" of purely natural climate fluctuations, temperature records must be at least 17 years long, according to climate scientists. To address criticism of the reliability of thermometer records of surface warming,...

Americans using more fossil fuels

Nov. 9, 2011 -  
American energy use went back up in 2010 compared to 2009, when consumption was at a 12-year low. The United States used more fossil fuels in 2010 than in 2009, while renewable electricity remained approximately constant, with an increase in wind power offset by a modest decline in hydroelectricity...

Lab-based PCR research most accessed article in August

Nov. 1, 2011 -  
A scientific paper written by a team of LLNL researchers and engineers was the most-accessed article for the month of August for the international journal Analyst . The paper, describing a device for the sub-three-minute amplification of nucleic acids (DNA and RNA) using polymerase chain reaction (...

Reinventing the soft X-ray spectroscopy of actinides

Oct. 25, 2011 -  
A Laboratory team has re-invented the soft X-ray spectroscopy of the highly radioactive actinides with a new, unique spectrometer. Using LLNL's new Fano/Resonant Inverse Photoelectron Spectroscopy (RIPES) spectrometer, Lab researchers Jim Tobin and Sung Woo Yu conducted a series of experiments on...

Lab team helps measure femtosecond pulses of X-ray free electron

Oct. 20, 2011 -  
An international team including three LLNL researchers have measured for the first time the spatial and temporal coherence of a single femtosecond X-ray pulse generated by the first hard X-ray free-electron laser (XFEL), the Linac Coherent Light Source (LCLS), at the SLAC National Accelerator...

Lab biophysicist invents improvement to Monte Carlo technique

Oct. 17, 2011 -  
Jerome P. Nilmeier, a biophysicist working in computational biology, is willing to bet his new research will provide a breakthrough in the use of the Monte Carlo probability code in biological simulations. Working with Gavin E. Crooks at Lawrence Berkeley National Lab, David D. L. Minh at Argonne,...

Lab researchers address quantum world in new paper

Oct. 6, 2011 -  
Lab researchers Walid Younes and Daniel Gogny have co-authored a paper, "Nuclear scission and quantum localization," recently published in Physics Review Letters . The publication details a major physics result in a project funded by a $695,000 grant from the American Recovery and Reinvestment Act...

Lab receives $3 million for BioAMS instrument

Oct. 5, 2011 -  
LIVERMORE, Calif. -- Researchers at Lawrence Livermore National Laboratory recently received $3 million from the National Institutes of Health to acquire a new biomedical accelerator mass spectrometry (bioAMS) instrument. The instrument will provide faster analysis for medical and other biological...

Advance by Lawrence Livermore scientists makes possible near-instantaneous DNA analysis

Oct. 4, 2011 -  
Picture this: You've brought your sick child to the doctor's office. After checking her pulse and blood pressure, he takes a nasal or throat swab and inserts it into a mysterious black box. Before the doctor finishes his examination, the black box beeps, indicating that the pathogen that's making...

Students tackle Lab's climate simulation challenge

Oct. 3, 2011 -  
How are climate change and energy demands linked? What energy options are available to our nation and the world? These are only a few of the questions Tracy High School students explored during a recent school contest based on LLNL's climate simulation learning tool found on the Climate Simulation...