U.S. Department of Energy Research News

Showing stories 476-500 out of 892 stories.
Click to go to page: [ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 ]

16-Jan-2003
'Sound' solutions � for safety, health and security
Want to know what's inside a sealed container? Listen to it. Want to know how to do that? Read on.

6-Jan-2003
Immobilizing enzymes for useful service
Researchers at the U.S. Department of Energy's Pacific Northwest National Laboratory, managed by the Office of Science, have developed a technology to immobilize high concentrations of active enzymes--harnessing twice the activity than that of enzymes in free solution. Results of this research are reported in the August 2002 Journal of the American Chemical Society.

31-Dec-2002
Closing in on cancer
Gerald Small, an Ames Lab senior chemist and an Iowa State University distinguished professor, and Ryszard Jankowiak, an Ames Lab senior scientist, have developed a unique biosensor technology that provides immediate information about DNA damage from cancer-causing pollutants called carcinogens. Damage to DNA, which carries the genetic code of life, is a critical first step in the development of cancer.

23-Dec-2002
Sea squirt DNA sheds light on vertebrate evolution
A study of the genome of Ciona intestinalis - the sea squirt - by an international consortium of researchers led by the U.S. Department of Energy's Joint Genome Institute has yielded new insights into the origins of complex biological systems. Results are reported in the December 13, 2002, issue of the journal Science.

19-Dec-2002
2002: A big year for accomplishments at Los Alamos
In the tradition of "years in review" published nearly everywhere, John Browne, director of the Los Alamos National Laboratory, has published a sampling of technical accomplishments at this Department of Energy lab during 2002.

9-Dec-2002
GENESIS� first year a success
As scientists at Los Alamos National Laboratory begin analysis of first-year data from the solar wind probe GENESIS they have determined the spacecraft is working so well that they are considering possibilities for research beyond the planned 2004 mission completion date. Three of GENESIS' instruments were designed and built at Los Alamos.

9-Dec-2002
Los Alamos announces Homeland Security Center and staff
Los Alamos National Laboratory's Laboratory's Center for Homeland Security will be the key contact point at the Laboratory for organizations seeking scientific and technical assistance in areas related to Homeland Security.

25-Nov-2002
Artificial retina project
U.S. Department of Energy Secretary Spencer Abraham toured Doheny Eye Institute at the University of Southern California, lauding scientific and engineering breakthroughs in developing an implantable artificial retina for patients with vision loss from retinal diseases such as retinitis pigmentosa and age-related macular degeneration.

25-Nov-2002
Los Alamos helps forecast frequency of giant meteors
A system operated by the U.S. Department of Energy's Los Alamos National Laboratory and used to "listen" for clandestine nuclear tests has played a key role in helping scientists more accurately determine how often Earth is hammered by giant meteors.

22-Nov-2002
Potomac parley presents particle physics project prioritization panel
Ray Orbach: "I want [the U.S. program] to be the best high-energy physics program in the world."

22-Nov-2002
A delicate balance
DOE review gives high marks to Tevatron improvements, but cites challenges ahead

11-Nov-2002
Scientists identify role of important cancer protein
Scientists from the U.S. Department of Energy's National Synchrotron Light Source located at Brookhaven National Laboratory have uncovered how a known cancer protein disrupts the normal function of human cells. This discovery, which may lead to the design of new anticancer drugs, is reported in the November 1, 2002, issue of the journal Cell.

4-Nov-2002
Taking structural biology to a new plateau
As part of a new multidisciplinary structural biology program, scientists from the U.S. Department of Energy's Lawrence Berkeley National Laboratory unexpectedly discovered a protein interface they call the Rad50 "zinc hook," used by an essential protein complex to link broken DNA strands. These first results from the new program were published in the August 1, 2002, issue of Nature.

1-Nov-2002
Meeting on neutral ground
Neutrinos offer a link between cosmologists and particle physicists.

29-Oct-2002
At Los Alamos: Tracing biothreats with molecular signatures
For more than a decade, a team of researchers in the DOE's Los Alamos National Laboratory Bioscience Division has been working to prevent the proliferation of biological weapons. The team has developed a powerful set of tools and techniques for deciphering molecular signatures � genetic patterns that distinguish bacterial species and strains.

18-Oct-2002
Helping hands
In high-energy physics, friends don't let friends run at low luminosity. And with more than a little help from HEP friends, Fermilab's Tevatron has set a series of luminosity records, culminating at 8:50 a.m. on Wednesday, October 9. The world's most powerful particle accelerator achieved an unprecedented luminosity of 3.61 x 1031cm-2sec-1, a measure of the number of high-energy particle collisions per second, also characterized as the beam's brightness.

30-Sep-2002
Detecting and monitoring harmful algal blooms
Scientists at Pacific Northwest National Laboratory's Marine Sciences Laboratory in Sequim, Wash., are working with the Olympic Region Harmful Algal Bloom (ORHAB) project to investigate the mechanisms driving harmful algal blooms. Harmful algal blooms (HABs), a common occurrence on the Washington coast, have led to closures of commercial, tribal and recreational shellfish harvest, which have resulted in millions of dollars in losses to the state's razor clam fishery in recent years.

30-Sep-2002
Something fishy?
Pacific Northwest National Laboratory researchers are analyzing fish from about 500 randomly selected lakes and reservoirs across the country for ultra-low, trace levels of mercury and for specific forms of arsenic. The project, part of the National Fish Monitoring Study, is focused on freshwater game fish, such as lake trout, and bottom-dwelling fish, such as catfish.

30-Sep-2002
Mozart�A genius at assessing your Web site
Scientists at Pacific Northwest National Laboratory have developed an Internet assessment tool, called Mozart, that quickly archives and analyzes entire Web sites based on search terms provided by the user and built-in search libraries containing hundreds of key phrases designed to find sensitive information.

30-Sep-2002
Need for transportation technologies heads into overdrive
The transportation industry faces several challenges relating to vehicle fuel efficiency, regulated emissions and global warming. Pacific Northwest National Laboratory's Jud Virden talks about technologies being developed for transportation and how they fit into the nation's priorities relating to petroleum imports, global climate change, and environmental and health effects of emissions. Virden oversees the Laboratory's involvement in the U.S. Department of Energy's FreedomCAR and Vehicle Technologies program and other vehicle technology research.

30-Sep-2002
Exhaustive research on emissions technologies
Pacific Northwest National Laboratory is conducting fundamental scientific research that could help vehicles meet the EPA's aggressive emissions requirements.

30-Sep-2002
Opportunity NOx
Pacific Northwest National Laboratory researchers put their expertise in surface science and catalysis to work when they developed an effective plasma catalysis system for treating engine exhaust one of the first advanced emissions control technologies developed by the Laboratory.

30-Sep-2002
Modeling for success
Pacific Northwest National Laboratory's unique approach to computational modeling with solid oxide fuel cells combines computational chemistry codes, computational fluid dynamics and computational mechanics. It allows PNNL researchers to study not only the electrochemical reactions in fuel cells, but also how the electrochemical reactions interact with fuel cell design.

30-Sep-2002
Fuel cells for transportation
Scientists at Pacific Northwest National Laboratory are developing fuel cells that use a vehicle's existing fuel supply to provide auxiliary power for creature comforts, such as air-conditioning, keeping drinks cold in mini-refrigerators and viewing DVDs--all without running the vehicle's engine or draining its battery.

30-Sep-2002
New anode material bodes well
Pacific Northwest National Laboratory scientist Olga Marina is developing a new generation of non-metallic anodes for solid oxide fuel cells and she is seeing promising results. With support from the U.S. Department of Energy's Office of Fossil Energy, her work is part of a significant international research effort to identify alternatives to nickel in solid oxide fuel cells.