Showing stories 51-75 out of 188 stories. <<<1 | 2 | 3 | 4 | 5 | 6 | 7>>>
18-Apr-2016 ORNL forges connections for sturgeon conservation
Scientists at the Department of Energy's Oak Ridge National Laboratory are taking a closer look at how sturgeon, a prehistoric -- and now imperiled -- group of fish species may better be helped to get around the dams that block their migrations.
11-Apr-2016 Researchers discover new type of 'pili' used by bacteria to cling to hosts
Many bacteria interact with their environment through hair-like structures known as pili, which attach to and help mediate infection of host organisms, among other things. Now a US-Japanese research team, including scientists from the Department of Energy's SLAC National Accelerator Laboratory, has discovered that certain bacteria prevalent in the human gut and mouth assemble their pili in a previously unknown way -- information that could potentially open up new ways of fighting infection.
1-Apr-2016 What are aerosols?
Art Sedlacek, an atmospheric scientist at Brookhaven National Laboratory, has flown on planes outfitted with high tech equipment through wildfire plumes and over the ocean, and has visited stations all over the globe to observe aerosols and understand the potentially big impact these suspensions of tiny particles can have on climate.
21-Mar-2016 Sisters in science
Emma and Molly White and Ru-Shyan and Ru-Huey Yen, a pair of twin sisters and close friends who met in high school 16 years ago. Flash forward to today, and the four all have science-based careers, and look back at their shared-sisterhood-times-two as vital in getting them to where they are today.
14-Mar-2016 X-ray studies at SLAC and Berkeley Lab aid search for Ebola cure
In experiments carried out partly at the Department of Energy's SLAC National Accelerator Laboratory, scientists have determined in atomic detail how a potential drug molecule fits into and blocks a channel in cell membranes that Ebola and related 'filoviruses' need to infect victims' cells.
3-Mar-2016 Pushing boundaries
Solid-liquid interface studies have a long history at EMSL. The insights gained from this research spans areas including terrestrial ecosystems, energy materials, aerosols and biological systems. With improved understanding of interfacial events, scientists working at EMSL have developed more predictive models and made significant advances in addressing real-world challenges. EMSL's focus on solid-liquid interface research has pushed the development of new instruments and techniques to better study these complex surfaces for even greater scientific results.
12-Feb-2016 AWARE project launched to gain new insights on climate of Antarctica
Scientists from Brookhaven National Laboratory, working with a group led by the Scripps Institution of Oceanography, embarked on a new project that will lead to a better understanding of how much of the sun's light and the atmosphere's heat radiation reach the Antarctic surface.
29-Jan-2016 Meet Crysten and Ian Blaby
The US Department of Energy's Brookhaven National Laboratory welcomes two new biologists, Crysten and Ian Blaby, who have been brought to the Lab to explore the many genes that play a role in a plant's ability to harness energy and what those genes could mean for enhancing bioenergy crops.
4-Jan-2016 Q&A: Biologist describes milestone toward a universal flu vaccine
Scientists from The Scripps Research Institute and the Crucell Vaccine Institute have now designed a protein fragment called mini-HA that stimulates the production of antibodies against a variety of influenza viruses. A key part of the work took place at the Stanford Synchrotron Radiation Lightsource, a DOE Office of Science User Facility at SLAC National Accelerator Laboratory, where the scientists used a technique called X-ray crystallography to look at the atomic structure of the mini-HA at each stage of its development.
29-Dec-2015 2015's Top 10 Scientific Advances at Brookhaven National Laboratory
From creating the tiniest drops of primordial particle soup to devising new ways to improve batteries, catalysts, superconductors, and more, scientists at the US Department of Energy's Brookhaven National Laboratory pushed the boundaries of discovery in 2015. Here, in no particular order, are our picks for the top 10 advances of the year.
23-Dec-2015 Scratching the surface
Oceans cover almost three-quarters of the planet and are major contributors to atmospheric aerosols in the form of sea spray particles. These sea spray aerosols are rich in organic materials that impact cloud formation and the world's climate. Despite their abundance and significance, sea spray aerosols are not well understood. Researchers in collaboration with EMSL scientists are learning more about the chemistry of sea spray aerosols and their role in cloud formation to better account for them in climate models.
21-Dec-2015 Study forecasts disappearance of conifers due to climate change
A new study, led by Los Alamos National Laboratory, suggests that widespread loss of a major forest type, the pine-juniper woodlands of the Southwestern US, could be wiped out by the end of this century due to climate change, and that conifers throughout much of the Northern Hemisphere may be on a similar trajectory.
8-Dec-2015 Innovation boosts study of fragile biological samples at SLAC's X-ray laser
Researchers at the Department of Energy's SLAC National Accelerator Laboratory have found a simple new way to study very delicate biological samples -- like proteins at work in photosynthesis and components of protein-making machines called ribosomes -- at the atomic scale using SLAC's X-ray laser.
9-Nov-2015 Molecular clocks control mutation rate in human cells
Every cell in the human body contains a copy of the human genome. Through the course of a lifetime all cells are thought to acquire mutations in their genomes. Some of the mutational processes generating these mutations do so in bursts and these will often be through external exposures such as sunbathing or tobacco smoking. Other mutational processes, however, may be internal to the cell and generate mutations continuously, at a constant rate over decades.
26-Oct-2015 The silent treatment: EMSL's quiet wing
Scientists are advancing the understanding of biological and environmental systems by conducting at least part of their research in EMSL's Quiet Wing, one of the most advanced quiet laboratories in the world for high-resolution imaging capabilities. Scientists are using this facility for a wide range of research areas, including: to study bacteria in complex soil aggregates, to understand the behavior of a unique multicopper oxidase and to explore remediation methods using porous clay.
16-Sep-2015 Q&A: Biologist describes milestone in watching proteins boogie
Using an X-ray laser at the Department of Energy's SLAC National Accelerator Laboratory, researchers have for the first time directly seen myoglobin move within quadrillionths of a second after a bond breaks and the protein releases a gas molecule. The Linac Coherent Light Source X-ray laser is a DOE Office of Science User Facility, and its short, bright pulses were essential for observing these ultrafast, atomic-scale motions.
8-Sep-2015 Making the most from carbon in plants
Researchers are looking for more effective ways to get at all the carbon in biomass to create more energy and biochemicals. However, a lot of the carbon is in lignin -- support tissues in plants, which makes up about a third of the biomass. International teams of scientists are utilizing EMSL's expertise and capabilities to better understand how lignin can be efficiently deconstructed to release its carbon for a more renewable and sustainable energy future.
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.
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.
The Department of Energy's Office of Science is the single largest supporter of basic research in the physical sciences in the United States and is working to address some of the most pressing challenges of our time.