Imagine driving on a dark road. In the distance you see a single light. As the light approaches it splits into two headlights. That’s a car, not a motorcycle, your brain tells you. A new study found that neural circuits in the brain rapidly multitask between detecting and discriminating sensory input, such as headlights in the distance.
The annual ritual of visiting a doctor’s office or health clinic to receive a flu shot may soon...
Imagine a user who intends to send $2 to a friend...
If a driver is traveling to New York City, I-95 might be their route of choice. But they could...
A research collaboration consisting of IHP-Innovations for High Performance Microelectronics in Germany and the Georgia Institute of Technology has demonstrated the world's fastest silicon-based device to date. The investigators operated a silicon-germanium (SiGe) transistor at 798 GHz fMAX, exceeding the previous speed record for silicon-germanium chips by about 200 GHz.
Researchers have developed the technology for a catheter-based device that would provide forward-looking, real-time, 3-D imaging from inside the heart, coronary arteries and peripheral blood vessels. With its volumetric imaging, the new device could better guide surgeons working in the heart, and potentially allow more of patients’ clogged arteries to be cleared without major surgery.
Although low-temperature fuel cells powered by methanol or hydrogen have been well studied, existing low-temperature fuel cell technologies can’t directly use biomass as a fuel because of the lack of an effective catalyst system for polymeric materials. Now, researchers have developed a new type of low-temperature fuel cell that directly converts biomass to electricity with assistance from a catalyst activated by solar or thermal energy.
Martian experts have known since 2011 that mysterious, possibly water-related streaks appear and disappear on the planet’s surface. These features were given the descriptive name of recurring slope lineae (RSL) because of their shape, annual reappearance and occurrence generally on steep slopes such as crater walls. A team has been looking closer at this phenomenon to try to understand the nature of these features: water-related or not?
Using electrons more like photons could provide the foundation for a new type of electronic device that would capitalize on the ability of graphene to carry electrons with almost no resistance even at room temperature—a property known as ballistic transport. Research reported that electrical resistance in nanoribbons of epitaxial graphene changes in discrete steps following quantum mechanical principles.
Designing nanomedicine to combat diseases is a hot area of scientific research, primarily for treating cancer, but very little is known in the context of atherosclerotic disease. Scientists have engineered a microchip coated with blood vessel cells to learn more about the conditions under which nanoparticles accumulate in the plaque-filled arteries of patients with atherosclerosis, the underlying cause of myocardial infarction and stroke.
Using a novel high-throughput screening process, scientists have, for the first time, identified molecules with the potential to block the accumulation of a toxic eye protein that can lead to early onset of glaucoma. Glaucoma is a group of diseases that can damage the eye’s optic nerve and cause vision loss and blindness. Elevated eye pressure is the main risk factor for optic nerve damage.
Scientists studying grasslands in Oklahoma have discovered that an increase of 2 C in the air temperature above the soil creates significant changes to the microbial ecosystem underground. Compared to a control group with no warming, plants in the warmer plots grew faster and higher, which put more carbon into the soil. The microbial ecosystem responded by altering its DNA to enhance the ability to handle the excess carbon.
Using arm sensors that can read a person’s muscle movements, Georgia Institute of Technology researchers have created a control system that makes robots more intelligent. The sensors send information to the robot, allowing it to anticipate a human’s movements and correct its own. The system is intended to improve time, safety and efficiency in manufacturing plants.
Researchers at Georgia Institute of Technology studying the burgeoning phenomenon of crowdfunding have learned that the language used in online fundraising hold surprisingly predictive power about the success of such campaigns. While offering donors a gift may improve a campaign’s success, the study found the language project creators used to express the reward made the difference.
Scientists studying the atmosphere above Barrow, Alaska, have discovered unprecedented levels of molecular chlorine in the air, a new study reports. Molecular chlorine, from sea salt released by melting sea ice, reacts with sunlight to produce chlorine atoms. These chlorine atoms are highly reactive and can oxidize many constituents of the atmosphere including methane and elemental mercury.
By the time they’re two, most children have had respiratory syncytial virus (RSV) and suffered symptoms no worse than a bad cold. But for some children, RSV can lead to pneumonia and bronchitis. A new imaging technique for studying the structure of the RSV virion and the activity of RSV in living cells could help researchers unlock the secrets of the virus.
Networks of nanometer-scale machines offer exciting potential applications in medicine, industry, environmental protection and defense, but until now there’s been one very small problem: the limited capability of nanoscale antennas fabricated from traditional metallic components. With antennas made from conventional materials like copper, communication between low-power nanomachines would be virtually impossible.
With one stomp of his foot, Zhong Lin Wang illuminates a thousand light-emitting diode (LED) bulbs, with no batteries or power cord. The current comes from essentially the same source as that tiny spark that jumps from a fingertip to a doorknob when you walk across carpet on a cold, dry day. Wang and his research team have learned to harvest this power and put it to work.
In a finding of relevance to the search for life in our solar system, researchers at the Georgia Institute of Technology, Univ. of Texas at Austin’s Institute for Geophysics and the Max Planck Institute for Solar System Research have shown that the subsurface ocean on Jupiter’s moon Europa may have deep currents and circulation patterns with heat and energy transfers capable of sustaining biological life.
Researchers have created magnetic replicas of sunflower pollen grains using a wet chemical, layer-by-layer process that applies highly conformal iron oxide coatings. The replicas possess natural adhesion properties inherited from the spiky pollen particles while gaining magnetic behavior, allowing for tailored adhesion to surfaces.
The phonon, like the photon or electron, is a physical particle that travels like waves, representing mechanical vibration. Phonons transmit everyday sound and heat. Recent progress in phononics by a research scientist at Georgia Institute of Technology has led to the development of new ideas and devices that are using phononic properties to control sound and heat, even to the point of freeing bustling city blocks from the noise of traffic.
Researchers at the Georgia Institute of Technology have recently demonstrated an integrated rhombic gridding based triboelectric nanogenerator, or “TENG”, that has been proven to be a cost-effective and robust approach for harvesting ambient environmental energy.
When pilots encounter an in-flight emergency they consult with manuals, emergency procedures and other reference materials contained in their flight bags for information on how to respond. In the future, these cumbersome flight bags could be replaced by “electronic flight bags” consisting of a lightweight tablet computer loaded with electronic versions of documents that today are printed on paper.
For years scientists have been working to fundamentally understand how nanoparticles move throughout the human body. One big unanswered question is how the shape of nanoparticles affects their entry into cells. Now researchers have discovered that under typical culture conditions, mammalian cells prefer disc-shaped nanoparticles over those shaped like rods.
A new study has found that “waviness” in forests of vertically-aligned carbon nanotubes dramatically reduces their stiffness, answering a long-standing question surrounding the tiny structures. Instead of being a detriment, the waviness may make the nanotube arrays more compliant and therefore useful as thermal interface material for conducting heat away from future high-powered integrated circuits.
Water pours into a cup at about the same rate regardless of whether the water bottle is made of glass or plastic. But at nanometer-size scales, material type does make a significant difference. A new study shows that in nanoscopic channels, the effective viscosity of water in channels made of glass can be twice as high as water in plastic channels, potentially affecting a variety of research approaches.
Microscopic, bottle-like structures with corks that melt at precisely controlled temperatures could potentially release drugs inside the body or fragrances onto the skin, according to a recently published study. Typical drug delivery systems act more like sponges than bottles. The researchers hope that the new system may allow for greater control of drug delivery.
Researchers have discovered the details of how cells repair breaks in both strands of DNA, a potentially devastating kind of DNA damage. When chromosomes experience double-strand breaks, cells utilize their genetically similar chromosomes to patch the gaps via a mechanism that involves both ends of the broken molecules. To repair a broken chromosome, a unique configuration of the DNA replication machinery is deployed.
Growing concern about bacterial resistance to existing antibiotics has created strong interest in new approaches for therapeutics able to battle infections. The work of an international team of researchers that recently solved the structure of a key bacterial membrane protein could provide a new target for drug and vaccine therapies able to battle one important class of bacteria.
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