In a new effort to understand magnetism, a group of Hamburg Centre for Ultrafast Imaging researchers created “mimic” magnets by controlling quantum matter waves made of rubidium atoms. Under well-defined conditions made possible with the help of supercomputers, these artificially created magnets can be studied with clarity and then give a fresh perspective on long-standing riddles.
DARPA-funded researchers have recently developed...
Professor Ken Naitoh of Waseda Univ.'s Faculty of...
As NASA prepares to launch a new Martian probe, a...
In the first 300 days of the Mars Science Laboratory surface mission, the Curiosity rover collected soil samples in Gale Crater while the onboard Radiation Assessment Detector made detailed measurements of the radiation environment on the surface of Mars. Southwest Research Institute scientists have published the results of these studies, comparing them to typically doses received on Earth.
A new look at NASA satellite data revealed that Earth set a new record for coldest temperature recorded. It happened in August 2010 when it hit -135.8 degrees. Then on July 31 of this year, it came close again: -135.3 degrees. That’s about 50 degrees colder than anything ever seen in Alaska or Siberia.
Scientific innovation lifecycle management solutions provider Accelrys has added to its enterprise capabilities with the acquisition of Ireland-based QUMAS for $50 million in cash. QUMAS is a global provider of cloud-based and on-premises enterprise compliance software supporting regulatory and quality operations in life sciences and other highly regulated industries.
Scientists from the Univ. of Toronto have discovered a novel chemical lurking in the atmosphere that appears to be a long-lived greenhouse gas (LLGHG). The chemical—perfluorotributylamine (PFTBA)—is the most radiatively efficient chemical found to date, breaking all other chemical records for its potential to affect climate.
Researchers have determined the structure of the rubella virus capsid protein, which is central to the virus's ability to assemble into an infectious particle and to infect humans. Although a successful vaccine is available to protect against rubella virus infection, the discovery could aid efforts to develop vaccines and antiviral drugs to treat related infections.
To learn new motor skills, the brain must be plastic: able to rapidly change the strengths of connections between neurons, forming new patterns that accomplish a particular task. However, if the brain were too plastic, previously learned skills would be lost too easily. A new computational model explains how the brain maintains the balance between plasticity and stability, and how it can learn similar tasks without interference.
Q?rius (pronounced “Curious”) is a new hub of scientific activity and education based at the Smithsonian’s National Museum of Natural History in Washington D.C. The product of a partnership between Olympus and the Smithsonian, the 10,000-square-foot experiential learning center will be equipped with dozens of microscopes and imaging systems that will enable museum visitors more than 6,000 bones, minerals, and fossils.
By using optical techniques, researchers in Switzerland are now able to measure the concentration of the oxidizing substances produced by a damaged cell. This new biosensing technique for toxic agents also offers a new way to know more about the mechanisms of oxidative stress.
With the help of the x-ray light source PETRA III, researchers in Germany have, for the first time, watched organic solar cells degrade in real time. This work could open new approaches to increasing the stability of this highly promising type of solar cell, which is known for its flexibility and low cost but has a short lifespan.
Univ. of Oregon chemists studying the structure of ligand-stabilized gold nanoparticles have captured fundamental new insights about their stability. The information, they say, could help to maintain a desired, integral property in nanoparticles used in electronic devices, where stability is important.
The Titan Arm, a robotic device invented by Univ. of Pennsylvania engineering students, looks and sounds like part of a superhero's costume. But its creators say it's designed for ordinary people—those who need either physical rehabilitation or a little extra muscle for their job. The arm can help its wearer carry an additional 40 pounds.
Even as Silicon Valley speaks out against the U.S. government's surveillance methods, technology companies are turning a handsome profit by mining personal data. Tarnished by revelations that the National Security Agency trolls deep into the everyday lives of Web surfers, companies like Apple, Facebook, Google, and Microsoft are aggressively battling any perception that they voluntarily give the government access to users' information.
Forensic experts have long used the shape of a person’s skull to make positive identifications of human remains. But those findings may now be called into question, since a new study from North Carolina State Univ. shows that there is not enough variation in skull shapes to make a positive identification.
Zinc is found in every tissue in the body. The vast majority of the metal ion is tightly bound to proteins, helping them to perform biological reactions. Tiny amounts of zinc, however, are only loosely bound, and may be critical for proper function in some organs. Yet the exact roles the ion plays in biological systems are unknown. A new optical sensor tracks zinc within cells and should help researchers learn more about its functions.
Harmless lung cancer? A provocative study found that nearly one in five lung tumors detected on CT scans are probably so slow-growing that they would never cause problems. The analysis suggests the world's No. 1 cause of cancer deaths isn't as lethal as doctors once thought. In the study, these were not false-positives—suspicious results that turn out upon further testing not to be cancer.