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  News From the National Science Foundation
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Showing releases 776-800 out of 837.

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Public Release: 15-Jan-2015
Breakthrough lights up metamaterials
A City College of New York led-team has successfully demonstrated how to both enhance light emission and capture light from metamaterials embedded with light emitting nanocrystals. The breakthrough, headed by physicist Dr. Vinod Menon, could lead to a range of applications including ultrafast LEDs, nanoscale lasers and efficient single photon sources.
Army Research Office, National Science Foundation Materials Research Science and Engineering Centers program, Center for Photonic and Multiscale Nanomaterials

Contact: Vinod Menon
City College of New York

Public Release: 15-Jan-2015
Journal of Chemical Theory and Computation
Shining a light on quantum dots measurement
Using the cadmium selenide quantum dot, researchers at Syracuse University collaborated to understand how protein corona forms and what is different about the quantum dot before and after the formation of the corona.
National Science Foundation, Syracuse University

Contact: Matt Wheeler
Syracuse University

Public Release: 15-Jan-2015
MIT team enlarges brain samples, making them easier to image
Massachusetts Institute of Technology researchers have discovered a method that enlarges tissue samples by embedding them in a polymer that swells when water is added.
National Institutes of Health, New York Stem Cell Foundation, Jeremy and Joyce Wertheimer, National Science Foundation, Fannie and John Hertz Foundation

Contact: Sarah McDonnell
Massachusetts Institute of Technology

Public Release: 15-Jan-2015
Rice-sized laser, powered one electron at a time, bodes well for quantum computing
Princeton University researchers have built a rice grain-sized microwave laser, or 'maser,' powered by single electrons that demonstrates the fundamental interactions between light and moving electrons. It is a major step toward building quantum-computing systems out of semiconductor materials.
National Science Foundation, Defense Advanced Research Projects Agency QuEST, Army Research Office, David and Lucile Packard Foundation

Contact: Catherine Zandonella
Princeton University

Public Release: 15-Jan-2015
Plasma Processes and Polymers
Gold nanoparticles show promise for early detection of heart attacks
A novel colloidal gold test strip is demonstrating great potential for early detection of certain heart attacks. Researchers are developing the strip to test for cardiac troponin I (cTn-I); its level is several thousand times higher in patients experiencing myochardial infarctions. The new strip uses microplasma-generated gold nanoparticles. Compared to AuNPs produced by traditional chemical methods, the surfaces of thesenanoparticles attract more antibodies, which results in significantly higher detection sensitivity.
Air Force Office of Scientific Research, National Science Foundation

Contact: Kathleen Hamilton
New York University Polytechnic School of Engineering

Public Release: 15-Jan-2015
Undercover researchers expose new species of lizard for sale on Philippine black market
Amid the black-market pet trade in Manila, KU's Rafe Brown and colleagues discovered two species of water monitor lizard that previously were unknown to science.
National Science Foundation

Contact: Brendan M Lynch
University of Kansas

Public Release: 15-Jan-2015
Vaccine-induced CD4 T cells have adverse effect in a mouse model of infection
New findings demonstrate that vaccine-elicted CD4 T cells lead to overwhelming inflammatory response in mouse model of chronic infection.
National Institutes of Health, Bill & Melinda Gates Foundation, Swiss National Science Foundation, European Research Council, Ragon Institute of MGH, MIT and Harvard, NIH/National Institute of Allergy and Infectious Diseases Intramural Research Program

Contact: Bonnie Prescott
Beth Israel Deaconess Medical Center

Public Release: 15-Jan-2015
Charge instability detected across all types of copper-based superconductors
Superconductors made of copper-oxide ceramics called cuprates are capable of conducting electricity without resistance at record-high temperatures -- but still only at about one-third of room temperature. A phenomenon called charge ordering appears to compete with superconductivity and reduce the temperature at which cuprates demonstrate superconducting properties. The behavior, which had been previously observed in a class of cuprates known as hole-doped cuprates, has now been detected in electron-doped cuprate superconductors for the first time.
National Science Foundation

Contact: Abby Robinson
University of Maryland

Public Release: 15-Jan-2015
Study supports new explanation of gender gaps in academia
It isn't that women don't want to work long hours or can't compete in highly selective fields, and it isn't that they are less analytical than men, researchers report in a study of gender gaps in academia. It appears instead that women are underrepresented in academic fields whose practitioners put a lot of emphasis on the importance of being brilliant -- a quality many people assume women lack.
National Science Foundation, Spencer Foundation

Contact: Diana Yates
University of Illinois at Urbana-Champaign

Public Release: 15-Jan-2015
Tiny plant fossils a window into Earth's landscape millions of years ago
A team led by the University of Washington has discovered a way to determine the tree cover and density of trees, shrubs and bushes in locations over time based on clues in the cells of plant fossils preserved in rocks and soil. Quantifying vegetation structure throughout time could shed light on how the Earth's ecosystems changed over millions of years.
National Science Foundation, Geological Society of America, University of Washington, Burke Museum

Contact: Michelle Ma
University of Washington

Public Release: 14-Jan-2015
Frontiers in Microbiology
New species discovered beneath ocean crust
Researchers have found a new species of sulfate-breathing microbes locked away in an aquifer that flows underneath the ocean floor.
National Science Foundation, NASA Astrobiology Institute

Contact: Robert Perkins
University of Southern California

Public Release: 14-Jan-2015
ACS Nano
Carbon nanotube finding could lead to flexible electronics with longer battery life
University of Wisconsin-Madison materials engineers have made a significant leap toward creating higher-performance electronics with improved battery life -- and the ability to flex and stretch. The team has reported the highest-performing carbon nanotube transistors ever demonstrated. In addition to paving the way for improved consumer electronics, this technology could also have specific uses in industrial and military applications.
National Science Foundation, UW-Madison Center of Excellence for Materials Research and Innovation, US Army Research Office, National Science Foundation, Wisconsin Alumni Research Foundation

Contact: Michael S. Arnold
University of Wisconsin-Madison

Public Release: 14-Jan-2015
Proceedings of the National Academy of Sciences
Paradox revealed: Cues associated with infant abuse may help reduce stress in adult brain
Neurobiologists at New York University Langone Medical Center and elsewhere found a surprising and paradoxical effect of abuse-related cues in rat pups: those cues also can lower depressive-like behavior when the rat pups are fully grown. These properties may help shed light on why certain cues associated with early life abuse can sometimes reduce stress in those same individuals as adults.
NIH/National Institute of Mental Health, National Science Foundation

Contact: David March
NYU Langone Medical Center / New York University School of Medicine

Public Release: 14-Jan-2015
Chemical dial controls attraction between water-repelling molecules
A group of University of Wisconsin-Madison researchers has provided new insights on hydrophobic interactions within complex systems. In a study published today in the journal Nature, the researchers show how the nearby presence of polar substances can change the way the non-polar hydrophobic groups want to stick to each other.
National Science Foundation

Contact: Nicholas Abbott
University of Wisconsin-Madison

Public Release: 14-Jan-2015
Applied Materials and Interfaces
Atomic placement of elements counts for strong concrete
The forces that bind atoms and molecules can impact the strength of particulate materials like concrete. Rice University researchers carried out simulations to determine how the atomic placement of elements in concrete can be tuned to maximize its mechanical properties.
National Science Foundation, National Institutes of Health, IBM Shared University Research Award

Contact: David Ruth
Rice University

Public Release: 14-Jan-2015
Ecology and Society
Sustainability challenged as many renewable resources max out
The days of assuming natural resources can be swapped in and out to solve shortages -- corn for oil, soy for beef -- may be over. An international group of scientists demonstrate that many key resources have peaked in productivity, pointing to the sobering conclusion that 'renewable' is not synonymous with 'unlimited.'
National Science Foundation

Contact: Sue Nichols
Michigan State University

Public Release: 14-Jan-2015
Environmental Science & Technology
New contaminants found in oil and gas wastewater
Duke University scientists have documented high levels of two potentially hazardous contaminants, ammonium and iodide, in wastewater being discharged into area streams and rivers from oil and gas operations in Pennsylvania. Levels of contamination were just as high in wastewater coming from conventional oil and gas wells as from hydraulically fractured shale gas wells.
National Science Foundation, Park Foundation

Contact: Tim Lucas
Duke University

Public Release: 13-Jan-2015
Applied Materials and Interfaces
Crush those clinkers while they're hot
Clinkers pulverized to make cement should be processed right out of the kiln to save the most energy. The environmentally friendly advice is the result of a computational study by scientists at Rice University.
National Science Foundation

Contact: David Ruth
Rice University

Public Release: 13-Jan-2015
Lab on a Chip
New device allows for manipulation of differentiating stem cells
A new device developed by researchers at Northwestern University creates nanopores in adherent cell membranes, allowing researchers to deliver molecules directly into the cells during differentiation.
National Science Foundation, National Institutes of Health

Contact: Megan Fellman
Northwestern University

Public Release: 13-Jan-2015
Royal Society Open Science
Men want commitment when women are scarce
The sexual stereotype, in line with evolutionary theory, is that women want commitment and men want lots of flings. But a study of the Makushi people in Guyana shows the truth is more complex, with men more likely to seek long-term relationships when women are in short supply.
National Science Foundation, Wenner-Gren Foundation

Contact: Lee J. Siegel
University of Utah

Public Release: 13-Jan-2015
Sizing up giants under the sea
Researchers sifted through multiple datasets and historical records to produce more accurate and comprehensive measurements for 25 species including the blue whale, giant squid, and great white shark. The team, comprised of a mix of scientists and students, also utilized social media to promote the research and reach potential collaborators from across the world.
National Evolutionary Synthesis Center, National Science Foundation

Contact: Nicole Duncan
National Evolutionary Synthesis Center (NESCent)

Public Release: 12-Jan-2015
29th Association for the Advancement of Artificial Intelligence Conference
Robots learn to use kitchen tools by watching YouTube videos
Researchers at the University of Maryland Institute for Advanced Computer Studies have developed robotic systems that are able to teach themselves. Specifically, these robots are able to learn the intricate grasping and manipulation movements required for cooking by watching online cooking videos. The key breakthrough is that the robots can 'think' for themselves, determining the best combination of observed motions that will allow them to efficiently accomplish a given task.
European Union, National Science Foundation, US Army

Contact: Matthew Wright
University of Maryland

Public Release: 12-Jan-2015
Proceedings of the National Academy of Sciences
Ancient fossils reveal rise in parasitic infections due to climate change
A paleobiologist from the University of Missouri has found indications of a greater risk of parasitic infection due to climate change in ancient mollusk fossils. His study of clams from the Holocene Epoch indicates that current sea level rise may mimic the same conditions that led to an upsurge in parasitic trematodes, or flatworms, he found from that time. He cautions that an outbreak in human infections could occur.
National Science Foundation of China, University of Missouri Research Council, Alexander von Humboldt Stiftung, German Academic Exchange Service

Contact: Jeff Sossamon
University of Missouri-Columbia

Public Release: 12-Jan-2015
Journal of Experimental Biology
Slick and slender snake beats short and stubby lizard in sand swimming
For swimming through sand, a slick and slender snake can perform better than a short and stubby lizard. That's one conclusion from a study of the movement patterns of the shovel-nosed snake, a native of the Mojave Desert of the Southwest United States.
National Science Foundation, US Army Research Office

Contact: John Toon
Georgia Institute of Technology

Public Release: 12-Jan-2015
Proceedings of the National Academy of Sciences
Rise in mass die-offs seen among birds, fish and marine invertebrates
An analysis of 727 studies reveals that there have been more instances of rapid, catastrophic animal die-offs over the past 75 years. These mass kills appear to have hit birds, fish and marine invertebrates harder than other species.
US Environmental Protection Agency, National Science Foundation

Contact: Sarah Yang
University of California - Berkeley

Showing releases 776-800 out of 837.

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