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Features Archive


Showing stories 1-25 out of 74 stories.
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1-Sep-2015
Time-lapse analysis offers new look at how cells repair DNA damage
Time-lapse imaging can make complicated processes easier to grasp. Berkeley Lab scientists are using a similar approach to study how cells repair DNA damage. Microscopy images are acquired about every thirty minutes over a span of up to two days, and the resulting sequence of images shows ever-changing hotspots inside cells where DNA is under repair.

Contact: Dan Krotz
dakrotz@lbl.gov
510-486-4019
DOE/Lawrence Berkeley National Laboratory

1-Sep-2015
Global team seeks individual X-ray portraits of active viruses, bacteria and cell components
A major international collaboration launched by the Department of Energy's SLAC National Accelerator Laboratory is laying the technical groundwork for taking individual, atomic-scale portraits of intact viruses, living bacteria and other microscopic samples using the brightest X-ray light on Earth.

Contact: Andrew Gordon
agordon@slac.stanford.edu
650-926-2282
DOE/SLAC National Accelerator Laboratory

20-Aug-2015
X-ray duo's research helps launch human trial for treatment of arsenic poisoning
Graham George and Ingrid Pickering, a husband and wife X-ray research team, have worked for decades to understand how contaminants in water and soil are taken up by the body and affect human health. Much of that research has taken place at the Stanford Synchrotron Radiation Lightsource (SSRL), a DOE Office of Science User Facility at SLAC National Accelerator Laboratory, where both are former staff scientists.

Contact: Andrew Gordon
agordon@slac.stanford.edu
650-926-2282
DOE/SLAC National Accelerator Laboratory

20-Aug-2015
Carbon number crunching
A booming economy and population led China to emerge in 2006 as the global leader in fossil-fuel carbon emissions, a distinction it still maintains. But exactly how much carbon China releases has been a topic of debate, with recent estimates varying by as much as 15 percent.

Contact: Morgan McCorkle
mccorkleml@ornl.gov
865-574-7308
DOE/Oak Ridge National Laboratory

18-Aug-2015
Viral comparisons
An Oak Ridge National Laboratory team of comparative genomics and computational science researchers compared approximately 4,000 complete virus genomes downloaded from a public database known as GenBank. By compressing the sequence files, the team created a virus dendrogram that maps out the relationships among all the different virus families.

Contact: Morgan McCorkle
mccorkleml@ornl.gov
865-574-7308
DOE/Oak Ridge National Laboratory

21-Jul-2015
Tracing the evolution of a drug-resistant pathogen
Sandia National Laboratories researchers are studying antibiotic-resistant pathogens to aid in the fight against them.

Contact: Sue Holmes
sholmes@sandia.gov
505-844-6362
DOE/Sandia National Laboratories

29-Jun-2015
Magnetic attraction
Researchers studying a broad spectrum of science, including biofuel production processes, climate effects on carbon cycling in the soil and carbon transformations in the atmosphere will soon have access to EMSL's new 21 Tesla Fourier transform ion cyclotron resonance mass spectrometer. Scientists are eager to start getting molecular-level information for their research, and six inaugural studies were selected to use the new instrument through a Special Science Call.

Contact: Mary Beckman
mary.beckman@pnnl.gov
509-375-3688
DOE/Environmental Molecular Sciences Laboratory

24-Jun-2015
Berkeley Lab scientists to develop better way to screen chemicals for cancer-causing effects
Berkeley Lab scientists are developing a cell culture that could help researchers better identify chemicals that increase breast cancer susceptibility. The scientists will grow the culture using adult stem cells obtained from breast tissue. Their test will show if a chemical causes a breakdown in cell-to-cell communication, a fundamental defect of cancer.

Contact: Dan Krotz
dakrotz@lbl.gov
510-486-4019
DOE/Lawrence Berkeley National Laboratory

18-Jun-2015
Adapting nanoscience imaging tools to study ants' heat-deflecting adaptations
A new study shows that the tiny hairs of Saharan silver ants possess crucial adaptive features that allow the ants to regulate their body temperatures and survive the scorching hot conditions of their desert habitat. To study how the hairs allow the creatures to control electromagnetic waves in this manner, the Columbia Engineering research team turned to the resources and expertise available at Brookhaven Lab's Center for Functional Nanomaterials.

Contact: Karen McNulty Walsh
kmcnulty@bnl.gov
631-344-8350
DOE/Brookhaven National Laboratory

1-Jun-2015
Meraculous: Deciphering the 'book of life' with supercomputers
A team of scientists from Berkeley Lab, JGI and UC Berkeley, simplified and sped up genome assembly, reducing a months-long process to mere minutes. This was primarily achieved by 'parallelizing' the code to harness the processing power of supercomputers, such as NERSC's Edison system.

Contact: Linda Vu
lvu@lbl.gov
510-495-2402
DOE/Lawrence Berkeley National Laboratory

27-May-2015
The 'why' of models
An international team of researchers from Oak Ridge National Laboratory, Macquarie University, the University of Western Sydney and the Max Planck Institute for Biogeochemistry set out to assess how two Free-Air CO2 Enrichment projects compared to eleven vegetation models that simulate various ecological processes. Instead of only benchmarking whether or not an individual model matched the experimental data, the researchers developed an 'assumption-centered' approach to evaluate why certain models performed better than others.

Contact: Morgan McCorkle
mccorkleml@ornl.gov
865-574-7308
DOE/Oak Ridge National Laboratory

27-May-2015
Berkeley Lab scientist invents new technique to understand cloud behavior
With two off-the-shelf digital cameras situated about 1 kilometer apart facing Miami's Biscayne Bay, Berkeley Lab scientists David Romps and Rusen Oktem are collecting three-dimensional data on cloud behavior that have never been possible to collect before.

Contact: Julie Chao
JHChao@lbl.gov
510-486-6491
DOE/Lawrence Berkeley National Laboratory

21-May-2015
Researchers watch protein 'quake' after chemical bond break
Scientists for the first time have precisely measured a protein's natural 'knee-jerk' reaction to the breaking of a chemical bond -- a quaking motion that propagated through the protein at the speed of sound.

Contact: Andrew Gordon
agordon@slac.stanford.edu
650-926-2282
DOE/SLAC National Accelerator Laboratory

12-May-2015
Finding the missing particles
For the past 20 years, a large portion of the particles measured in the atmosphere were missing from models. At best, models were able to explain one-tenth of the carbon-rich secondary organic aerosols measured in the air. The problem turned out to be a series of fundamental assumptions used in the models due to a lack of experimental data. All of the assumptions were proven false by Dr. Alla Zelenyuk and her colleagues.

Contact: Mary Beckman
mary.beckman@pnnl.gov
509-375-3688
DOE/Pacific Northwest National Laboratory

8-May-2015
New method relates Greenland ice sheet changes to sea-level rise
Climate models are not yet able to include full models of the Greenland and Antarctic ice sheets and to dynamically simulate how ice sheet changes influence sea level. Early schemes failed to accurately account for mass increase due to snowfall and mass loss due to snow melt. These changes depend on ice sheet elevation and region. A new method that includes the effects of elevation and region was developed.

Contact: Kristin Manke
kristin.manke@science.doe.gov
DOE/US Department of Energy

6-May-2015
Heat's role in the Madden-Julian Oscillation
Tropical monsoons in Indonesia and floods in the United States are both provoked by the Madden-Julian Oscillation, a process that results in pulses of clouds and precipitation moving eastward around the globe. Despite the MJO's importance, global models often struggle to simulate the oscillation accurately. Researchers showed that MJO simulations are most sensitive to the existence of lower level heating in the atmosphere.

Contact: Kristin Manke
kristin.manke@science.doe.gov
DOE/US Department of Energy

6-May-2015
Genetics of wood formation
To begin to understand the complex genetic interactions that control a potential bioenergy crop, scientists built a robust high-throughput pipeline for studying the hierarchy of genetic regulation of wood formation using tissue-specific single cells known as protoplasts.

Contact: Kristin Manke
kristin.manke@science.doe.gov
DOE/US Department of Energy

1-May-2015
New tool shrinks big data in biology studies at SLAC's X-ray laser
A team led by Stanford scientists has created software that tackles the big data problem for X-ray laser experiments at the Department of Energy's SLAC National Accelerator Laboratory. The program allows researchers to tease out more details while using far fewer samples and less data and time.

Contact: Andrew Gordon
agordon@slac.stanford.edu
650-926-2282
DOE/SLAC National Accelerator Laboratory

1-May-2015
New mathematical method enhances hydrology simulations
Just as a racecar's engine needs the right fuel to get the best performance, so climate models need finely tuned parameters to accurately simulate the impacts of different technologies and policies. Led by researchers at Pacific Northwest National Laboratory, a team applied sophisticated mathematical solutions to fine tune the water and energy exchange parameters, numerical stand-ins for complex processes, to better simulate water and energy fluxes.

Contact: Kristin Manke
kristin.manke@science.doe.gov
DOE/US Department of Energy

30-Apr-2015
Microbe produces ethanol from switchgrass without pretreatment
Scientists engineered a strain of a consolidated bioprocessing bacterium that efficiently breaks down biomass to produce ethanol without pretreatment.

Contact: Kristin Manke
kristin.manke@science.doe.gov
DOE/US Department of Energy

30-Apr-2015
Microbes disprove long-held assumption that all organisms share a common vocabulary
Some wild microorganisms reinterpret the instructions coded into their DNA. Short DNA segments that signal other organisms to stop are instead read as instructions to keep building.

Contact: Kristin Manke
kristin.manke@science.doe.gov
DOE/US Department of Energy

30-Apr-2015
Model captures how nitrogen limitation affects hydrological processes
Rising atmospheric levels of carbon dioxide act as a fertilizer for plants, speeding their growth and altering how they use water and interact with the climate. However, an insufficient supply of nitrogen can limit the rapid growth caused by increased carbon dioxide. Researchers adapted the Community Land Model to represent how nitrogen limitation affects plant growth.

Contact: Kristin Manke
kristin.manke@science.doe.gov
DOE/US Department of Energy

29-Apr-2015
Special science call projects announced
EMSL's Special Science Call for Proposals ran from mid-April through September and generated 23 accepted studies. The call challenged prospective users to submit high-impact research projects that took advantage of EMSL's technical resources including RadEMSL, the Quiet Wing microscopy and NanoSIMS capabilities, and HRMAC. The research associated with the call is progressing, and the projects will soon start delivering important scientific findings.

Contact: Mary Beckman
mary.beckman@pnnl.gov
509-375-3688
DOE/Environmental Molecular Sciences Laboratory

28-Apr-2015
Ground control
The United Nations General Assembly declared 2015 the International Year of Soils. Soil is critical for food production and climate regulation. It's a complex underground ecosystem of organisms that process decaying debris to enrich the land as well as store and release carbon into the atmosphere. However, human activity and changing climate are impacting this environmental system. Scientists working at EMSL are trying to understand the complexities of soil to develop better sustainable land management to protect it.

Contact: Mary Beckman
mary.beckman@pnnl.gov
509-375-3688
DOE/Environmental Molecular Sciences Laboratory

10-Apr-2015
Bacteria tracked feeding nitrogen to nutrient-starved plants
An international team of researchers, including three from Brookhaven National Laboratory, tracked nitrogen as soil bacteria pulled it from the air and released it as plant-friendly ammonium. This eco-friendly process -- called biological nitrogen fixation -- substantially promoted growth in certain grass crops.

Contact: Justin Eure
jeure@bnl.gov
631-344-2347
DOE/Brookhaven National Laboratory

Showing stories 1-25 out of 74 stories.
1 | 2 | 3 > >>


 

 

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