 |
|
||||||||||||||||||||||||||||||||||||||||||
 |
|||||||||||||||||||||||||||||||||||||||||||
| News From the National Science Foundation The National Science Foundation (NSF) — For more information about NSF and its programs, visit www.nsf.gov NSF Funded News
Key: Meeting
Showing releases 251-275 out of 738. [ 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 ]
Public Release: 2-Jun-2013
 Nature GeoscienceResearchers document acceleration of ocean denitrification during deglaciation As ice sheets melted during the deglaciation of the last ice age and global oceans warmed, oceanic oxygen levels decreased and "denitrification" accelerated by 30 to 120 percent, a new international study shows, creating oxygen-poor marine regions and throwing the oceanic nitrogen cycle off balance. 
National Science Foundation
Contact: Andreas Schmittner
Public Release: 31-May-2013
Proceedings of the National Academy of SciencesCircadian rhythms control body's response to intestinal infections, UCI-led study finds Circadian rhythms can boost the body's ability to fight intestinal bacterial infections, UC Irvine researchers have found.
National Institutes of Health, National Science Foundation, Sirtris Pharmaceuticals Inc.
Contact: Tom Vasich
Public Release: 31-May-2013
ScienceEven with defects, graphene is strongest material in the world Columbia Engineering researchers demonstrate that graphene, even if stitched together from many small crystalline grains, is almost as strong as graphene in its perfect crystalline form. This resolves a contradiction between theoretical simulations, which predicted grain boundaries can be strong, and earlier experiments, which indicated they were much weaker than the perfect lattice. "We're excited to say that graphene is back and stronger than ever," says Mechanical Engineering Professor James Hone.
Air Force Office of Scientific Research, National Science Foundation
Contact: Holly Evarts
Public Release: 30-May-2013
NatureComputer simulations help scientists understand HIV-1 infection Scientists have long been unable to fully explain how infections attack the body, but now a team of researchers, including one from the University of Central Florida, has taken a step closer to understanding how the process works in HIV-1. The results mean that one day that knowledge may prevent infection.
National Institutes of Health, National Science Foundation
Contact: Zenaida Kotala
Public Release: 30-May-2013
ScienceScientists capture first images of molecules before and after reaction Using atomic force microscopy, chemists for the first time can capture images of molecules before and after they react, which will allow them to better tune reactions to get the products they want. UC Berkeley chemist Felix Fischer and physicist Michael Crommie joined forces to develop the technique, which could help scientists study and improve catalytic reactions like those used widely in industry to make chemicals or crack oil.
Office of Naval Research, US Department of Energy, National Science Foundation
Contact: Robert Sanders
Public Release: 30-May-2013
ScienceAtom by atom, bond by bond, a chemical reaction caught in the act Scientists at Lawrence Berkeley National Laboratory and the University of California at Berkeley have produced remarkable images of carbon atoms and the bonds among them. Resembling glowing textbook diagrams, hydrocarbon molecules are shown in high resolution for the first time before and after bond-breaking, rearrangement, and reforming of bonds during a complex chemical reaction.
Office of Naval Research, Department of Energy Office of Science, National Science Foundation, European Research Council
Contact: Paul Preuss
Public Release: 30-May-2013
ScienceMulti-national study identifies links between genetic variants and educational attainment A multi-national team of researchers has identified genetic markers that predict educational attainment by pooling data from more than 125,000 individuals in the United States, Australia, and 13 western European countries.
NIH/National Institute on Aging, National Institutes of Health, National Science Foundation
Contact: James Devitt
Public Release: 29-May-2013
Water Resources ResearchSmall dams on Chinese river harm environment more than expected, study finds A fresh look at the environmental impacts of dams on an ecologically diverse and partially protected river in China found that small dams can pose a greater threat to ecosystems and natural landscape than large dams. The research team's surveys of habitat loss and damage at several dam sites on the Nu River and its tributaries in Yunnan Province revealed that, watt-for-watt, the environmental harm from small dams was often greater than from large dams.
National Science Foundation
Contact: Peter Weiss
Public Release: 29-May-2013
Nano LettersOrganic polymers show sunny potential A new version of solar cells created by laboratories at Rice and Pennsylvania State universities could open the door to research on a new class of solar energy devices.
National Science Foundation, US Department of Energy, Welch Foundation, Shell Center for Sustainablility and Owen Family Foundation
Contact: David Ruth
Public Release: 29-May-2013
NatureArctic current flowed under deep freeze of last ice age, study says During the last ice age, when thick ice covered the Arctic, many scientists assumed that the deep currents below that feed the North Atlantic Ocean and help drive global ocean currents slowed or even stopped. But in a new study in Nature, researchers show that the deep Arctic Ocean has been churning briskly for the last 35,000 years, through the chill of the last ice age and warmth of modern times.
National Science Foundation, Comer Science and Education Fund
Contact: Kim Martineau
Public Release: 29-May-2013
NatureWit, grit and a supercomputer yield chemical structure of HIV capsid Researchers report that they have determined the precise chemical structure of the HIV capsid, a protein shell that protects the virus's genetic material and is a key to its virulence. The capsid has become an attractive target for the development of new antiretroviral drugs. The report appears as the cover article in the journal Nature.
NIH/National Institute of General Medical Sciences, National Science Foundation
Contact: Diana Yates
Public Release: 29-May-2013
NatureTeam describes molecular detail of HIV's inner coat, pointing the way to new therapies A team led by researchers at the University of Pittsburgh School of Medicine has described for the first time the 4-million-atom structure of the HIV's capsid, or protein shell. The findings, reported today in Nature, could lead to new ways of fending off an often-changing virus that has been very hard to conquer.
National Institutes of Health, National Science Foundation
Contact: Anita Srikameswaran
Public Release: 28-May-2013
Journal Of Quaternary SciencePenn-led research maps historic sea-level change on the New Jersey coastline A new study led by the University of Pennsylvania's Benjamin P. Horton, an associate professor in the Department of Earth and Environmental Science, relied upon fossil records of marshland to reconstruct the changes in sea level along the New Jersey coast going back 10,000 years.
US Department of Energy, National Science Foundation, National Oceanic and Atmospheric Administration
Contact: Evan Lerner
Public Release: 28-May-2013
Proceedings of the National Academy of SciencesScientists find possible solution to an ancient enigma The widespread disappearance of stromatolites, the earliest visible manifestation of life on Earth, may have been driven by single-celled organisms called foraminifera, study finds.
National Science Foundation
Contact: WHOI Media Relations
Public Release: 28-May-2013
Human Molecular GeneticsPreventing 'traffic jams' in brain cells Each brain cell has an internal highway system for transporting essential materials between different parts of the cell. Understanding blockages on these highways and how traffic should flow normally in healthy cells could offer hope to people with neurodegenerative diseases. Toward that end, a research team has shown that the protein presenilin plays an important role in controlling neuronal traffic on microtubule highways, a novel function that previously was unknown.
National Institutes of Health, National Science Foundation, Ellison Medical Foundation, Alzheimer's Association, John R. Oishei Foundation
Contact: Charlotte Hsu
Public Release: 28-May-2013
Limnology & OceanographyFast-sinking jellyfish could boost the oceans' uptake of carbon dioxide Increasing numbers of gelatinous plankton might help in mitigating the CO2 problem. In field and laboratory experiments scientists from GEOMAR Helmholtz Centre for Ocean Research Kiel has shown that dead jellyfish and pelagic tunicates sink much faster than phytoplankton and marine snow remains. Jellies are especially important because they rapidly consume plankton and particles and quickly export biomass and carbon to the ocean interior.
Deutsche Forschungsgemeinschaft, Federal Ministry of Education and Research, National Science Foundation, and others
Contact: Maria Lebrato
Public Release: 28-May-2013
PLOS BiologyEvolution in the blink of an eye A novel disease in songbirds has rapidly evolved to become more harmful to its host on at least two separate occasions in just two decades, according to a new study. The research provides a real-life model to help understand how diseases that threaten humans can be expected to change in virulence as they emerge.
National Science Foundation, National Institutes of Health
Contact: Joe Schwartz
Public Release: 28-May-2013
PLOS MedicinePsychotherapy's benefits for depression Treatments for depression that don't involve antidepressant drugs but rather focus on different forms of talking therapy (referred to as psychotherapeutic interventions) are all beneficial, with no one form of therapy being better than the others, according to a study by international researchers published in this week's PLOS Medicine.
Swiss National Science Foundation
Contact: Fiona Godwin
Public Release: 27-May-2013
Proceedings of the National Academy of SciencesThe formula for turning cement into metal In a move that would make the alchemists of King Arthur's time green with envy, scientists have unraveled the formula for turning liquid cement into liquid metal. This makes cement a semi-conductor and opens up its use in the profitable consumer electronics marketplace for thin films, protective coatings, and computer chips.
National Science Foundation, US Department of Energy
Contact: Tona Kunz
Public Release: 26-May-2013
Physical Review LettersModels from big molecules captured in a flash The structures of most of the two million proteins in the human body are still unknown, even at low resolution. A new algorithm developed by researchers at Lawrence Berkeley National Laboratory and their colleagues solves the convoluted shapes of large molecules by using images of numerous individual samples, all caught simultaneously in a split-second flash of x-rays from a free-electron laser. The technique promises efficient information about the shapes of many more large biological molecules in their native, fluid state.
Department of Energy Office of Science, Human Frontier Science Program, National Science Foundation, University of Wisconsin, Chinese Academy of Sciences
Contact: Paul Preuss
Public Release: 26-May-2013
Nature GeoscienceClimate researchers discover new rhythm for El Niño Why El Niņo peaks around Christmas and ends quickly by February to April has been a long-standing mystery. The answer lies in an interaction between El Niņo and the annual cycle that results in an unusual tropical Pacific wind pattern with a period of 15 months, according to a team of scientists at the University of Hawai'i at Manoa. Their study appears in the May 26, 2013, online issue of Nature Geoscience.
National Science Foundation, US Department of Energy, NOAA, Japan Agency for Marine-Earth Science and Technology, 973 Program of China, China Meteorological Special Project
Contact: Gisela Speidel
Public Release: 24-May-2013
Astrophysical JournalAstronomers measure the elusive extragalactic background light Measuring the extragalactic background light (EBL) is no simple task, complicated by the fact that Earth is lodged inside a bright solar system and a bright Milky Way. Now a team of astronomers has come up with a solution that ingeniously overcomes the technical challenges of measuring EBL. The researchers propose that one answer to the problem of measuring EBL lies in measuring the attenuation -- or weakening -- of very high-energy gamma rays from distant blazars.
National Aeronautics and Space Administration, National Science Foundation, Ministerio de Ciencia e Innovacion, Spain
Contact: Iqbal Pittalwala
Public Release: 23-May-2013
NatureMonkey teeth help reveal Neanderthal weaning Studies on monkeys at the California National Primate Research Center at UC Davis have helped US and Australian researchers calculate when a Neanderthal infant was weaned.
US Environmental Protection Agency, NIH/National Institute of Environmental Health Sciences, National Science Foundation, National Health and Medical Research Council, Australian Research Council, Harvard University
Contact: Andy Fell
Public Release: 23-May-2013
Proceedings of the National Academy of SciencesReforestation study shows trade-offs between water, carbon and timber More than 13,000 ships per year transit the Panama Canal each year. Each time a ship passes through, more than 55 million gallons of water are used. The advent of large "super" cargo ships has demanded expansion of the canal, leaving the authority to consider how meet increased demand for water. One proposed measure is the reforestation of the watershed, which has been studied by ASU scientists Silvio Simonit and Charles Perrings to aid planners.
National Science Foundation, Smithsonian Tropical Research Institute
Contact: Margaret Coulombe
Public Release: 23-May-2013
ScienceUniversity of Illinois biophysicists measure mechanism that determines fate of living cells For the first time, biophysicists at the University of Illinois at Urbana-Champaign have measured the molecular force required to mechanically transmit function-regulating signals within a cell. A new laboratory method, named the tension gauge tether approach, has made it possible to detect and measure the mechanics of the single-molecule interaction by which human cell receptors are activated.
National Science Foundation/Physics Frontiers Center Program
Contact: Taekjip Ha
Showing releases 251-275 out of 738. [ 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 ]
|
|
||||||||||||||||||||||||||||||||||||||||||
Journal 
