The cryptocurrency Bitcoin is limited by its astronomical electricity consumption and outsized carbon footprint. A nearly zero-energy alternative sounds too good to be true, but as a professor explains, it all comes down to our understanding of what makes transactions secure.
Read moreA new way to achieve integrated photonics — a new device has been developed that could have applications in imaging, sensing and quantum information processing, such as on-chip transformation optics, mathematical operations and spectrometers.
Read moreA group of researchers developed a highly sensitive rectifying element in the form of a nanowire backward diode, which can covert low-power microwaves into electricity. The new technology is expected that the newly-developed nanowire backward diode will be applied in using plentiful ambient radio wave energy in 5G communications, serving as a stable power source of sensors and contributing to battery-free sensors.
Read moreIn a new study, researchers find that there is, in fact, a way for Indian cities to preserve citizen privacy while using their data to improve efficiency.
Read moreThe research community is increasingly recognizing video as more than just a medium to disseminate scientific findings after a study's conclusion. A powerful tool, film can engage study participants and become an integral part of the scientific process, when deployed thoughtfully. To guide this emerging practice, University of Pittsburgh Graduate School of Public Health scientists performed the first review of studies on use of film in public health research.
Read moreArtificial intelligence (AI) appears to detect diseases from medical imaging with similar levels of accuracy as health-care professionals, according to the first systematic review and meta-analysis, synthesizing the available evidence from the scientific literature.
Read more'Keep your eyes on the road.' With the recent advances in vehicle-assisted safety technology and in-car displays, this old adage has a new meaning, thanks to two new applications of eye-tracking technology.
Read moreResearchers have developed a type of processor called PAXEL, a device that can potentially bypass Moore's Law and increase the speed and efficiency of computing. Researchers looked at using light for the data transport step in integrated circuits, since photons are not subject to Moore's Law. Instead of integrated electronic circuits, much new development now involves photonic integrated circuits. The PAXEL accelerator takes this approach and uses power-efficient nanophotonics.
Read moreNew research has uncovered the specific data leaked through hospital breaches, sounding alarm bells for nearly 170 million people.
Read moreThe Micro-Expressions Training Tool, inspired the hit TV show Lie to Me, is being used to train airport personnel to spot people who pose potential security risks.
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