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Giant magnetocaloric materials could have large impact on the environment
06-19-2007 · EurekAlert!Materials that change temperature in magnetic fields could lead to new refrigeration technologies that reduce the use of greenhouse gases, thanks to new research at the US Department of Energy's Argonne National Laboratory and Ames National Laboratory.
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Keywords: giant, magnetocaloric, materials, large, impact, environment, material
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- When it comes to risk, not all nanomaterials are created equal
03-25-2007 · EurekAlert!
The size, type, and dispersion of nanomaterials could all play a role in how these materials impact human health and the environment, according to two groups of researchers at Rensselaer Polytechnic Institute. In new studies, the teams found that while carbon nanotubes inhibited growth in mammalian cells, they sustained the growth of commonly occurring bacteria.
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- Healthy planet, places and people at risk
10-29-2007 · EurekAlert!
Australians face increasingly large-scalehealth risks from our expanding impact on the natural environment, ranging fromincreases in weather extremes and dengue fever to obesity, diabetes and mental health.
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- Quantum effects writ large
02-15-2007 · EurekAlert!
A team of physicists from Rice University, Rutgers University, and the Max Planck Institute for Chemical Physics of Solids in Dresden, Germany, reports this week in the journal Science the discovery of surprising quantum effects in a member of a broad class of materials that include high-temperature superconductors and quantum magnets. The effects were observed at a "quantum critical point," a tipping point at which the quantum properties of the material undergo a radical change.
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- Rounding up gases, nano-style
02-01-2008 · EurekAlert!
A new process for catching gas from the environment and holding it indefinitely in molecular-sized containers has been developed by a team of University of Calgary researchers, who say it represents a novel method of gas storage that could yield benefits for capturing, storing and transporting gases more safely and efficiently. Paper published in current advanced online edition of Nature Materials.
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- A Plan For Reintroducing Megafauna To North America
10-02-2006 · ScienceDaily
Dozens of megafauna (large animals over 100 pounds) -- such as giant tortoises, horses, elephants and cheetah -- went extinct in North America 13,000 years ago during the end of the Pleistocene. As is the case today in Africa and Asia, these megafauna likely played keystone ecological roles via predation, herbivory and other processes. What are the consequences of losing such important components of America's natural heritage?
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- 42-metre giant will probe the universe
12-12-2006 · EurekAlert!
The future of European astronomy is poised to enter a new era of discovery with the decision announced today by ESO's governing body to proceed with detailed studies for the European Extremely Large Telescope (E-ELT). This three year study, with a budget of 57 million euro, will prepare the way for construction of the world's largest optical/infrared telescope that will revolutionise ground-based astronomy. Astronomers from the UK have played crucial roles.
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- Math of elections says voters win with 'winner take all'
04-10-2007 · Massachusetts Institute of Technology (MIT)
For individuals and small groups to have the democratic power to elect the president fairly, presidential elections must be scored by winner-take-all states--not in a single giant national district too large for small numbers to turn, contends Alan Natapoff.
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- Measurements from the edge: magnetic properties of thin films
09-28-2007 · EurekAlert!
Materials researchers at NIST, together with colleagues from IBM and the Massachusetts Institute of Technology, have pushed the measurement of thin films to the edge -- literally -- to produce the first data on how the edges of metallic thin films contribute to their magnetic properties. Their results may impact the design of future nanoscale electronics.
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- Protein's strength lies in h-bond cooperation
02-14-2008 · EurekAlert!
Researchers in Civil and Environmental Engineering at MIT reveal that the strength of a biological material like spider silk lies in the geometric configuration of structural proteins, and the small clusters of weak hydrogen bonds that work cooperatively to resist force and dissipate energy. This structure makes protein-based materials as strong as steel, even though the hydrogen bonds that hold them together are 100 to 1,000 times weaker than the metallic bonds in steel.
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- Environment and exercise may affect research results, UA study shows
02-20-2007 · EurekAlert!
In the study, Knockout Mice: Is it Just Genetics? Effects of Enriched Housing on Fibulin-4+/- Mice, lead researcher Ann Baldwin, PhD, suggests that environmental factors may play a large part in research findings that investigators assume are due simply to genetic differences. Further, the study research indicates that appropriate environments may counteract the effects of some genetic deficiencies.
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