A new vulnerability affecting Android mobile devices results not from a traditional bug, but from the malicious combination of two legitimate permissions that power desirable and commonly-used features in popular apps. The combination could result in a new class of attacks, which has been dubbed “Cloak and Dagger.”
Researchers have found that carbon particles released into the air from burning trees and other organic matter are much more likely than previously thought to travel to the upper levels of the atmosphere, where they can interfere with rays from the sun – sometimes cooling the air and at other times warming it.
By analyzing network traffic going to suspicious domains, security administrators could detect malware infections weeks or even months before they're able to capture a sample of the invading malware, a new study suggests. The findings point toward the need for new malware-independent detection strategies that will give network defenders the ability to identify network security breaches in a more timely manner.
A warming climate could affect the stability of alpine grasslands in Asia’s Tibetan Plateau, threatening the ability of farmers and herders to maintain the animals that are key to their existence, and potentially upsetting the ecology of an area in which important regional river systems originate.
An international team of scientists has developed a new way to produce single-layer graphene from a simple precursor: ethene – also known as ethylene – the smallest alkene molecule, which contains just two atoms of carbon.
Sudden cardiac death resulting from fibrillation – erratic heartbeat due to electrical instability – is one of the leading causes of death in the United States. Now, researchers have discovered a fundamentally new source of that electrical instability, a development that could potentially lead to new methods for predicting and preventing life-threatening cardiac fibrillation.
Physicist and mathematician-artists create multi-colored virtual reality experience of hyperbolic geometry
Researchers at Georgia Institute of Technology have found a material used for decades to color food items ranging from corn chips to ice creams could potentially have uses far beyond food dyes.
A little empathy can go a long way toward ending infectious disease outbreaks. That’s a conclusion from researchers at the Georgia Institute of Technology, who used a networked variation of game theory to study how individual behavior during an outbreak of influenza – or other illness – affects the progress of the disease, including how rapidly the outbreak dies out.
China's severe winter air pollution problems may be worsened by changes in atmospheric circulation prompted by Arctic sea ice loss and increased Eurasian snowfall – both caused by global climate change.
Remember the butterfly-triggers-tornado adage? Chaos theory says calculating turbulence to find out if that's true must be impossible. Now, physicists are latching onto turbulent patterns with digital optics and math. Their resulting forecasts jibe with actual turbulent flows.
For most people, the drip, drip, drip of a leaking faucet would be an annoyance. But for Georgia Institute of Technology Ph.D. candidate Alexandros Fragkopoulos, what happens inside droplets is the stuff of serious science.
Georgia Institute of Technology researchers have demonstrated an optical metamaterial whose chiroptical properties in the nonlinear regime produce a significant spectral shift with power levels in the milliwatt range.
Triboelectric nanogenerators (TENG) convert mechanical energy harvested from the environment to electricity for powering small devices such as sensors or for recharging consumer electronics. Now, researchers have harnessed these devices to improve the charging of molecules in a way that dramatically boosts the sensitivity of a widely-used chemical analysis technique.
When is an internal combustion engine not an internal combustion engine? When it’s been transformed into a modular reforming reactor that could make hydrogen available to power fuel cells wherever there’s a natural gas supply available.
Cybersecurity researchers at the Georgia Institute of Technology have developed a new form of ransomware that can take over control of a simulated water treatment plant. After gaining access, they were able to command programmable logic controllers (PLCs) to shut valves, increase the amount of chlorine added to water, and display false readings.
Using tiny snippets of DNA as “barcodes,” researchers have developed a new technique for rapidly screening the ability of nanoparticles to selectively deliver therapeutic genes to specific organs of the body. The technique could accelerate the development and use of gene therapies for such killers as heart disease, cancer and Parkinson’s disease.
Using a Bose-Einstein condensate composed of millions of sodium atoms, researchers at the Georgia Institute of Technology have observed a sharp magnetically-induced quantum phase transition where they expect to find entangled atomic pairs. The work moves scientists closer to an elusive entangled state that would have potential sensing and computing applications beyond its basic science interests.
For marine protected areas established to help coral reefs recover from overfishing, size really does seem to make a difference.
Living systems dynamics about as predictable as a chemical reaction: Bacteria that stab and poison for defense and conquest can be charted using math equations that apply to phase separation of metals.
“Liberate the data.” That was a principal design goal for a team of public-private health care technology collaborators established by the U.S. Department of Veterans Affairs and Veterans Health Administration to develop a working and scalable proof-of-concept digital health platform (DHP) to support the department’s long-term vision.
In regenerative medicine, the ideal repair material would offer properties that seem impossibly contradictory. It must be rigid and robust enough to be manipulated surgically, yet soft and porous enough to allow healing cells to pass through it to launch repair and regeneration processes.
In a paper published this week in the journal Nature Materials, researchers from the Georgia Institute of Technology identified the opportunities they see ahead for scalable membrane materials based on rigid, engineered pore structures. They say the most promising materials are scalable for use in compact modules and take advantage of entropy at the molecular level to moderate the separation selectivity of membranes.
A simple technique for producing oxide nanowires directly from bulk materials could dramatically lower the cost of producing the one-dimensional (1D) nanostructures. That could open the door for a broad range of uses in lightweight structural composites, advanced sensors, electronic devices – and thermally-stable and strong battery membranes able to withstand temperatures of more than 1,000 degrees Celsius.
How big you are may be as important as what you look like, at least to immune system cells watching for dangerous bacteria and viruses.
Electrical vagus nerve stimulation can help fight inflammatory diseases like Crohn's or arthritis but can also contribute somewhat to inflammation. Engineers have tweaked the buzz to keep the good effects and minimize those less desirable. Their innovation could be adapted to existing medical devices with relative ease.
Earth was inhospitable to complex life for billions of years, suffocating evolution in a nearly oxygen-free environment. Then came a shift in phosphorus concentrations to ocean shallows, and shortly after it, complex life exploded.
As part of a $3 million grant from the National Science Foundation, researchers at the Georgia Institute of Technology and Northwestern University have built a musical, interactive tabletop exhibit that teaches the basics of computer coding.
A simple solution-based electrical doping technique could help reduce the cost of polymer solar cells and organic electronic devices, potentially expanding the applications for these technologies. By enabling production of efficient single-layer solar cells, the new process could help move organic photovoltaics into a new generation of wearable devices and enable small-scale distributed power generation.
Little is rarer than an observable quantum spin liquid, but now, tests reveal that a synthetic crystal with ytterbium as its base may house one at near absolute zero. It joins an extremely short list of materials believed house myriads of particles joined together in an observable vast, shared entanglement, or "spooky action at a distance."
A new testing methodology based on metagenomics could accelerate the diagnosis of foodborne bacterial outbreaks, allowing public health officials to identify the microbial culprits in less than a day.
The human eye often falls short in the hunt for faint genetic drivers that raise the risk of devastating neurological diseases such as autism and schizophrenia. But little eludes a microscope optic attached to a computer, and algorythms that can relate previously hidden phenotypes to subtle genetic mutations. The computational screening developed by Georgia Tech researchers has the potential to reveal webs of genetic dangers that produce disease risk by compounding tiny traits that, when take alone, may appear trivial and harmless.
If you could watch a molecule of medicine attaching to a cell receptor in extreme slow motion, they would look something like a space ship docking with a space station -- some twists, turns, sputters then locking together tight. With a new improvement to atomic force microscopy by Georgia Tech engineers, seeing this kind of detail is more likely to become possible.
An alliance between two companies isn’t automatically a “win-win,” but managers can take steps to ensure the best outcomes from strategic partnerships.
Georgia Tech Economist Shatakshee Dhgonde’s research reveals there are multiple dimensions of deprivation, and those dimensions can impact a person’s sense of financial security. She specifically cites six measures as being a more accurate assessment of a person’s financial condition than income alone.
Lake Lanier in Georgia is the primary water reservoir serving suburban and metropolitan Atlanta. When the lake’s water level drops below a certain point, calls go out for water conservation and news reports show images of the red mud shoreline. In some affected counties, water restrictions are imposed. The combination of usage restrictions and changes in precipitation eventually averts the crisis. But, when the crisis ends, water usage rebounds – until the next shortage.
Researchers achieved an unexpected eye-popping reduction of ovarian cancer during a successful test of targeted nanohydrogel delivery in vivo in mice. Adding cisplatin eliminated or starkly diminished tumors.
For scientists listening in on the faint whispers of brain neurons, a first-ever robotic technique for cleaning the tiny devices that record the signals could facilitate a new level of automation in neuroscience research. That could accelerate the gathering of information used to map the functions of brain cells and ultimately provide a better understanding what’s going on between our ears.
A study of 20 major cloud hosting services has found that as many as 10 percent of the repositories hosted by them had been compromised – with several hundred of the “buckets” actively providing malware. Such bad content could be challenging to find, however, because it can be rapidly assembled from stored components that individually may not appear to be malicious.
Researchers at Georgia Institute of Technology have developed a new process for treating metal surfaces that has the potential to improve efficiency in piston engines and a range of other equipment.
A little goo will do to get RNA and DNA to progress toward self-replication. Could some abundant ingredient have helped the precursors of genes become life molecules? Another indicator that little drama may have been necessary in chemical evolution.
An eccentric enzyme known so far only to exist in a single type of bacterium breaks down a toxin related to TNT and pesticides with counterintuitive moves.
Soon scientists and the public will have the chance to easily test hypotheses about America’s ecological challenges with the help of an ensemble of technologies, including artificial intelligence.
The EnerCage (Energized Cage) system is created for scientific experiments on awake, freely behaving small animals. It wirelessly powers electronic devices and sensors traditionally used during rodent research experiments, but without the use of interconnect wires or bulky batteries. Their goal is to create as natural an environment within the cage as possible for mice and rats in order for scientists to obtain consistent and reliable results.
A new optimization technique could help conservation biologists choose the most cost-effective ways of connecting isolated populations of rare, threatened and endangered species living in protected areas.
Materials scientists have developed a new strategy for crafting one-dimensional nanorods from a wide range of precursor materials. Based on a cellulose backbone, the system relies on the growth of block copolymer “arms” that help create a compartment to serve as a nanometer-scale chemical reactor.
For decades, geneticists have used programs to compute back through tens of millions of years of mutations to ancestral genes. Are the algorithms really working? A novel lab physical benchmark says: Yes, and how!
Fabrics that can generate electricity from physical movement have been in the works for a few years. Now researchers at Georgia Institute of Technology have taken the next step, developing a fabric that can simultaneously harvest energy from both sunshine and motion.
Researchers at the Georgia Tech Research Institute (GTRI) have created an assessment tool for systematically stimulating and testing the logic of fully autonomous systems while they are under development – before they reach the operational test and evaluation stage.
Using a unique single-molecule force measurement tool, a research team has developed a clearer understanding of how platelets sense the mechanical forces they encounter during bleeding to initiate the cascading process that leads to blood clotting.
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