Physicists at the National Institute of Standards and Technology (NIST) have demonstrated a compact atomic clock design that relies on cold rubidium atoms instead of the usual hot atoms, a switch that promises improved precision and stability.
Researchers from the National Institute of Standards and Technology (NIST) have joined with an international team to engineer and measure a potentially important new class of nanostructured materials for microwave and advanced communication devices.
Scientists have developed a 3D filming technique that has brought fresh insights into the behavior of malaria sperm. They were able to see that malaria sperm move in an irregular, lopsided corkscrew motion. Understanding how malaria parasites mate could pave the way for improved prevention and control of this deadly disease.
In a demonstration at the Vienna Univ. of Technology in Austria, scientists have shown that light can be switched between two fiber optic cables with just a single rubidium atom. The breakthrough relies on light capture devices called “bottle resonators”. The switch could enable quantum phenomena to be used for information and communication technology.
A new market study forecasts that the global market for driver monitoring systems will reach 64.8 million units by the end of 2020 with the majority of shipments being accounted for in vehicles sold in the Asia-Pacific region. A major 2013 is that these systems are migrating from the luxury brands like Volvo and Mercedes-Benz to more mass market models.
“Function follows form” might have been written to describe proteins, as the M. C. Escher-esque folds and twists of nature’s workhorse biomolecules enables each to carry out its specific responsibilities. X-ray protein crystallography determines protein structures by creating a diffraction pattern of dots that can be reconstructed by computer into a 3-D model.
Lawrence Livermore National Laboratory in partnership with Intel and Cray, announced a unique high-performance computing (HPC) cluster that will serve research scientists at all three institutions and provide a proving ground for new HPC and big data technologies and architectures.
Semiconductors have had a nice run, but for certain applications, such as astrophysics, they are being edged out by superconductors. Ben Mazin, asst. prof. of physics at the Univ. of California, Santa Barbara, has developed a superconducting detector array that measures the energy of individual photons.
Debating whether to seek a strep test for that sore throat? One day there could be a software application for that: Researchers are developing a home scorecard that aims to prevent thousands of unnecessary trips to the doctor for this common complaint. More than 12 million Americans make doctors' visits for a sore throat every year. Usually the culprit is a virus that they just have to wait out with a little care.
Researchers at the Univ. of Chicago are developing computer-aided diagnosis and quantitative image analysis methods for mammograms, ultrasounds and magnetic resonance images to identify specific tumor characteristics, including size, shape and sharpness
Our brains have upwards of 86 billion neurons, connected by synapses that not only complete myriad logic circuits; they continuously adapt to stimuli, strengthening some connections while weakening others. Materials scientists have now created a new type of transistor that mimics the behavior of a synapse. The novel device simultaneously modulates the flow of information in a circuit and physically adapts to changing signals.
As transistors get smaller, they also become less reliable. So far, computer-chip designers have been able to work around that problem, but in the future, it could mean that computers stop improving at the rate we’ve come to expect. A third possibility, which some researchers have begun to float, is that we could simply let our computers make more mistakes.
Thermal radiation from the sun is largely lost on most silicon solar cells. Up-converters transform the infrared radiation into usable light, however. Researchers have now for the first time successfully adapted this effect for use in generating power.
Google says it is investing 450 million euros to expand a data center in southern Finland as part of Europe-wide development plans totaling hundreds of millions of euros. The investment comes on top of the 350 million euros Google Inc. has spent converting an old paper mill, which started operations as a data center in 2011.
Most people know about ultrasound through its role in prenatal imaging: those grainy, grey outlines of junior constructed from reflected sound waves. A new technology called an "acoustic diode” that would transmit sound in one direction may dramatically improve future ultrasound images by changing the way sound waves are transmitted.
Doom may be averted for the Smith Cloud, a gigantic streamer of hydrogen gas that is on a collision course with the Milky Way Galaxy. Astronomers have discovered a magnetic field deep in the cloud’s interior, which may protect it during its meteoric plunge into the disk of our galaxy. This discovery could help explain how so-called high velocity clouds remain mostly intact during their mergers with the disks of galaxies.
In the hugely popular game Minecraft, players can freely build and create their own world by mining and stacking different types of bricks in a sandbox-like environment. Because of its customizable dynamic, the game has also become a background platform for many user-generated modifications, or "mods". Researchers and the developers of Minecraft have built a new Google-funded mod that introduces quantum mechanics into the game's landscape.
Until recently, the preparation of phosphor materials, key components in white LED lighting, was more an art than a science. It has been based on finding crystal structures that act as hosts to activator ions, which convert the higher-energy blue light to lower-energy yellow/orange light. By determining simple guidelines, researchers have recently made it possible to optimize phosphors allowing for brighter, more efficient lights.
Scientists have found a planet way out in the cosmos that's close in size and content to Earth, an astronomical first. But hold off on the travel plans. This rocky world is so close to its sun that it's at least 2,000 degrees hotter than here, almost certainly too hot for life.
Microbeam radiation therapy provides tremendous promise for cancer patients through its ability to destroy tumor cells while protecting surrounding healthy tissue. Yet research into its clinical use has been limited by the sheer size of the technology required to generate the beams. Until now.
One of the world’s largest dinosaurs has been digitally reconstructed by experts from The Univ. of Manchester allowing it to take its first steps in over 94 million years. The Manchester team, working with scientists in Argentina, were able to laser scan a 40-m-long skeleton of the vast Cretaceous Argentinosaurus dinosaur. Then using an advanced computer modeling technique they recreated its walking and running movements.
The increasingly powerful microscopes used in biomedical imaging provide biologists with 3-D images of hundreds of cells, and cells in these images are often layered on each other. Under these conditions, it is impossible for traditional computational methods to determine the cells' properties. Researchers have developed a virtual tool that can analyze dozens of images in just an hour. This works out to hundreds of cells.
If consumer electronics companies are to be believed, someone on your holiday shopping list is just dying for a wristwatch that displays message alerts and weather updates. Samsung and Sony have them, Google and Apple are rumored to be developing them. But some experts say it's a product in search of a market, and an expensive one at that.
A brain stimulation technique that is used to treat tough cases of depression could be considerably improved with a new headpiece designed by Univ. of Michigan engineers. Computer simulations showed that the headpiece—a square array of 64 circular metallic coils—could one day help researchers and doctors hit finer targets in the brain that are twice as deep as they can reach today, and without causing pain.
The best prediction meteorologists can accomplish for heat waves is about 10 days. An earlier warning would help cities prepare for the heat wave, arrange to open up cooling centers and check on the elderly. Recent work using statistical data and computer simulations may have revealed a way to predict some killer heat waves up to three weeks in advance.