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Showing releases 301-325 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: 19-May-2013
 Nature Materials
Kinks and curves at the nanoscale
Since 2004, materials scientists and nanotechnology experts have been excited about a special of arrangement of atoms called a "coherent twin boundary" that can add enormous strength to metals like gold and copper. The CTBs are described as "perfect," appearing like a one-atom-thick plane in models and images. New research shows that these boundaries are not perfect. Even more surprising, the newly discovered kinks and defects appear to be the cause of the CTB's strength.

US Department of Energy, National Science Foundation, NASA
Contact: Joshua Brown
joshua.e.brown@uvm.edu
802-656-3039
University of Vermont
Public Release: 19-May-2013
 Nature Geoscience
Sea level influenced tropical climate during the last ice age
The Indo-Pacific warm pool was much dryer during the last ice age than today, because lower sea level exposed the Sunda Shelf. The large landmass, in place of the warm ocean, altered the atmospheric circulation, shifting convection further west into the Indian Ocean. These findings by scientists at the International Pacific Research Center, University of Hawaii at Manoa, and Woods Hole Institute of Oceanography, appear in the May 19, online edition of Nature Geoscience.

National Science Foundation, Japan Agency for Marine-Earth Science and Technology, National Aeronautics and Space Administration, National Oceanic and Atmospheric Administration
Contact: Gisela Speidel
gspeidel@hawaii.edu
808-956-9252
University of Hawaii ‑ SOEST
Public Release: 19-May-2013
 Nature Biotechnology
Computational tool translates complex data into simplified 2-dimensional images
Researchers at Columbia University and Stanford University have developed a computational method that enables scientists to visualize and interpret "high-dimensional" data produced by single-cell measurement technologies such as mass cytometry. The method, published today in the online edition of Nature Biotechnology, has particular relevance to cancer research and therapeutics.

National Science Foundation, Natoinal Institutes of Health, National Centers for Biomedical Computing
Contact: Karin Eskenazi
ket2116@columbia.edu
212-342-0508
Columbia University Medical Center
Public Release: 17-May-2013

The Carboniferous-Permian Transition Conference
Cracking the ice code
UWM geologist John Isbell reads rock, looking for the natural rules that govern the Earth's climate in the absence of human activity. His work is challenging many assumptions about the ways drastic climate change unfolds -- and what to expect next.

National Science Foundation
Contact: John Isbell
jisbell@uwm.edu
414-229-2877
University of Wisconsin - Milwaukee
Public Release: 16-May-2013
 Physics Letters B
World's smallest droplets
Scientists at the Large Hadron Collider, the world's most powerful particle accelerator, may have created the smallest drops of liquid made in the lab.

Department of Energy, National Science Foundation
Contact: David Salisbury
david.salisbury@vanderbilt.edu
615-343-6803
Vanderbilt University
Public Release: 16-May-2013
 Science
Stacking 2-D materials produces surprising results
New experiments reveal previously unseen effects, could lead to new kinds of electronics and optical devices.

US Department of Energy, Gordon and Betty Moore Foundation, National Science Foundation
Contact: Sarah McDonnell
s_mcd@mit.edu
617-253-8923
Massachusetts Institute of Technology
Public Release: 16-May-2013
Clemson receives $5M for alliance to increase African-Americans in computer sciences
The National Science Foundation has awarded Clemson University a $5 million grant to launch the Institute for African-American Mentoring in Computing Sciences.

National Science Foundation
Contact: Brian M. Mullen
mullen2@clemson.edu
864-656-2063
Clemson University
Public Release: 16-May-2013
Mathematicians analyze social divisions using cell phone data
Human society fractures along lines defined by politics, religion, ethnicity, and perhaps most fundamentally, language. Although these differences contribute to the great variety of human lives, the partitions they create can lead to conflict and strife, impeding efforts toward social justice and economic development. David Meyer, a mathematician at UC San Diego, has developed a new way of understanding how characteristics like ethnicity and religion coincide to define communities and ultimately influence our actions.

Office of Naval Research, US Department of Defense, Army Research Office, Defense Advanced Research Projects Agency, National Science Foundation
Contact: Susan Brown
sdbrown@ucsd.edu
858-246-0161
University of California - San Diego
Public Release: 16-May-2013
 Science
Beautiful 'flowers' self-assemble in a beaker
By simply manipulating chemical gradients in a beaker of fluid, materials scientists at Harvard have found that they can control the growth behavior of crystals to create precisely tailored structures -- such as delicate, micron-scale flowers.

National Science Foundation, Netherlands Organization for Scientific Research
Contact: Caroline Perry
cperry@seas.harvard.edu
Harvard University
Public Release: 16-May-2013
 Nature
Scientists capture first direct proof of Hofstadter butterfly effect
A team of researchers from several universities – including UCF –has observed a rare quantum physics effect that produces a repeating butterfly-shaped energy spectrum in a magnetic field, confirming the longstanding prediction of the quantum fractal energy structure called Hofstadter's butterfly.
This discovery by the team paves the way for engineering new types of extraordinary nanoscale materials that can be used to develop smaller, lighter and faster electronics, including sensors, cell phones, tablets and laptops.

National Science Foundation, Faculty Early Career Development Program
Contact: Zenaida Gonzalez Kotala
zenaida.kotala@ucf.edu
407-823-6120
University of Central Florida
Public Release: 16-May-2013
 Nature Communications
New insights into how materials transfer heat could lead to improved electronics
University of Toronto Engineering researchers, working with colleagues from Carnegie Mellon University, have published new insights into how materials transfer heat, which could lead eventually to smaller, more powerful electronic devices.

National Science Foundation, Air Force Office of Scientific Research
Contact: Terry Lavender
terry.lavender@utoronto.ca
416-978-4498
University of Toronto Faculty of Applied Science & Engineering
Public Release: 16-May-2013
 Nanotechnology
Moth-inspired nanostructures take the color out of thin films
Inspired by the structure of moth eyes, researchers at North Carolina State University have developed nanostructures that limit reflection at the interfaces where two thin films meet, suppressing the "thin-film interference" phenomenon commonly observed in nature. This can potentially improve the efficiency of thin-film solar cells and other optoelectronic devices.

National Aeronautics and Space Administration, National Science Foundation
Contact: Matt Shipman
matt_shipman@ncsu.edu
919-515-6386
North Carolina State University
Public Release: 16-May-2013
 Science
World's melting glaciers making large contribution to sea rise
While 99 percent of Earth's land ice is locked up in the Greenland and Antarctic ice sheets, the remaining ice in the world's glaciers contributed just as much to sea rise as the two ice sheets combined from 2003 to 2009, says a new study led by Clark University and involving the University Colorado Boulder.

National Aeronautics and Space Administration, National Science Foundation
Contact: Tad Pfeffer
wtpfeffer@gmail.com
720-381-9479
University of Colorado at Boulder
Public Release: 16-May-2013
 BioScience
Natural 'keystone molecules' punch over their weight in ecosystems
Ecosystems are disproportionately influenced by "keystone molecules" that have powerful behavioral effects and contribute to ecosystem structure, according to a general theory described in the June issue of BioScience. The chemicals can each fill a variety of functions and affect multiple species. The actions of four keystone molecules are described, three of them toxins.

National Science Foundation, University of California, Los Angeles, Murdock Charitable Trust
Contact: Tim Beardsley
tbeardsley@aibs.org
703-674-2500 x326
American Institute of Biological Sciences
Public Release: 15-May-2013
 Developmental Biology
The developmental genetics of space and time
A University of Iowa researcher and his colleague have conducted a study that reveals important and useful insights into how and why developmental genes often take inputs from two independent "morphogen concentration gradients."

National Science Foundation
Contact: Gary Galluzzo
gary-galluzzo@uiowa.edu
319-384-0009
University of Iowa
Public Release: 15-May-2013
 Journal of Climate
Fall warming on Antarctic Peninsula driven by tropically forced circulation
New research shows that, in recent decades, fall is the only period of extensive warming over the entire Antarctic Peninsula, and it is mostly from atmospheric circulation patterns originating in the tropics.

National Science Foundation
Contact: Vince Stricherz
vinces@uw.edu
206-543-2580
University of Washington
Public Release: 15-May-2013
 Nature
Evolution shapes new rules for ant behavior, Stanford research finds
Biologist Deborah M. Gordon's decades-long study of collective behavior in harvester ant colonies has provided a rare real-time look at natural selection at work.

Stanford Office of the Dean of Research, Stanford Emergence of Cooperation Project, National Science Foundation
Contact: Bjorn Carey, Stanford News Service
bccarey@stanford.edu
650-725-1944
Stanford University
Public Release: 15-May-2013
 Nature
Scientists discover oldest evidence of split between Old World monkeys and apes
Two fossil discoveries from the East African Rift reveal new information about the evolution of primates, according to a study published online in Nature this week led by Ohio University scientists.

National Science Foundation, Leakey Foundation, National Geographic Society
Contact: Andrea Gibson
gibsona@ohio.edu
740-597-2166
Ohio University
Public Release: 15-May-2013
 PLOS ONE
Frog once imported for pregnancy testing brought deadly amphibian disease to US, study suggests
African frogs, originally imported for early 20th century pregnancy tests, carried a deadly amphibian disease to the US, according to findings published in PLOS ONE. African Clawed Frogs have long been suspected of spreading a harmful fungus called Batrachochytrium dendrobatidis. The earliest known case of the fungus was found in these frogs in their native South Africa. Now scientists have found the first evidence of the disease among introduced feral populations in the US.

National Science Foundation
Contact: Elaine Bible
ebible@sfsu.edu
415-405-3606
San Francisco State University
Public Release: 14-May-2013
 Nature
Untangling the tree of life
Vanderbilt phylogeneticists examined the reasons why large-scale tree-of-life studies are producing contradictory results and have proposed a suite of novel techniques to resolve the conflicts.

National Science Foundation
Contact: David Salisbury
david.salisbury@vanderbilt.edu
615-343-6803
Vanderbilt University
Public Release: 14-May-2013
 Journal of Geophysical Research: Solid Earth
Penn research helps paint finer picture of massive 1700 earthquake
In 1700, a massive earthquake struck the west coast of North America, but a lack of local documentation has made studying this historic event challenging. Now, researchers from the University of Pennsylvania have helped unlock this geological mystery using a fossil-based technique. Their work provides a finer-grained portrait of this earthquake and the changes in coastal land level it produced, enabling modelers to better prepare for future events.

National Science Foundation, US Geological Survey, University of Victoria
Contact: Evan Lerner
elerner@upenn.edu
215-573-6604
University of Pennsylvania
Public Release: 14-May-2013
 Zoonoses and Public Health
Widespread but neglected disease a health threat in Africa, Virginia Tech researchers say
Virginia Tech researchers have identified leptospirosis as a significant health threat in Botswana. The world's most common disease transmitted to humans by animals, according to the World Health Organization, leptospirosis is a two-phase disease that begins with flu-like symptoms but can cause meningitis, liver damage, pulmonary hemorrhage, renal failure, and even death if untreated.

National Science Foundation
Contact: Lynn Davis
davisl@vt.edu
540-231-6157
Virginia Tech
Public Release: 14-May-2013

IEEE International Symposium on Industrial Electronics
New software spots, isolates cyber-attacks to protect networked control systems
Researchers from North Carolina State University have developed a software algorithm that detects and isolates cyber-attacks on networked control systems -- which are used to coordinate transportation, power and other infrastructure across the United States.

National Science Foundation
Contact: Matt Shipman
matt_shipman@ncsu.edu
919-515-6386
North Carolina State University
Public Release: 14-May-2013
 Nature Communications
Making gold green: New non-toxic method for mining gold
Northwestern University scientists have struck gold in the laboratory. They have discovered an inexpensive and environmentally benign method that uses simple cornstarch -- instead of cyanide -- to isolate gold from raw materials in a selective manner. This green method extracts gold from crude sources and leaves behind other metals that are often found mixed together with the crude gold.

Defense Threat Reduction Agency, National Science Foundation
Contact: Megan Fellman
fellman@northwestern.edu
847-491-3115
Northwestern University
Public Release: 14-May-2013
 mBio
Microbes capture, store, and release nitrogen to feed reef-building coral
Microscopic algae that live within reef-forming corals scoop up available nitrogen, store the excess in crystal form, and slowly feed it to the coral as needed, according to a study published in mBio.

European Research Council, Swiss National Science Foundation
Contact: Jim Sliwa
jsliwa@asmusa.org
202-942-9297
American Society for Microbiology

Showing releases 301-325 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 ]

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