Researchers in the Optical and Quantum Communications Group at MIT’s Research Laboratory of Electronics (RLE) have experimentally demonstrated a new quantum communication protocol that solves two basic problems with achieving practical quantum encryption.
Quantum key distribution (QKD) requires the inefficient transmission of a huge number of bits for each one that’s successfully received. And QKD depends on the properties… read more
A team of 70 scientists from the U.S., China, Australia and Japan reports having sequenced and annotated more than 86 percent of the genome of the “sacred lotus,” which is believed to have a powerful genetic system that repairs genetic defects, and may hold secrets about aging successfully.
The Nelumbo nucifera plant is revered in China and elsewhere as a symbol of spiritual purity and longevity.… read more
There are many neurons, especially in brain regions that perform sophisticated functions such as thinking and planning, that react in different ways to a wide variety of things.
MIT neuroscientist Earl Miller first noticed these unusual activity patterns about 20 years ago, while recording the electrical activity of neurons in animals that were trained to perform complex tasks.
“We started noticing early on that… read more
Advanced Cell Technology, Inc. (ACT) has confirmed that the vision of a patient enrolled in a clinical investigation of the company’s retinal pigment epithelial (RPE) cells derived from human embryonic stem cells (hESCs) has improved from 20/400 to 20/40 following treatment.
ACT is currently enrolling patients in three clinical trials in the U.S. and Europe for treatment of Stargardt’s macular dystrophy (SMD) and dry age-related… read more
Philip Rosedale, founder of once-popular virtual world Second Life, has created a new company called High Fidelity. As suggested by the video above and the blog, the company is developing more natural ways for avatars to communicate (with heads and hand movements, for example) and with low latency (faster response time).
“Imagine holding your phone and being able to twist and move your avatar’s hand.… read more
A new tool that could help map and track the interactions between neurons in different areas of the brain is being developed by University of Texas Arlington assistant professor of physics Samarendra Mohanty.
The technology would be useful in the BRAIN (Brain Research Through Advancing Innovative Neurotechnologies) mapping initiative.
This new method, which uses a fiber-optic, two-photon, optogenetic stimulator, has been used on… read more
A harmless form of brain stimulation called transcranial random noise stimulation (TRNS) can help you learn math faster, researchers report.
“With just five days of cognitive training and noninvasive, painless brain stimulation, we were able to bring about long-lasting improvements in cognitive and brain functions,” says Roi Cohen Kadosh of the University of Oxford.
The enhancements to the speed of calculation- and memory-recall-based arithmetic learning held for a… read more
It’s been a long-sought goal that has proved elusive: how to engineer a property called a band gap into graphene, needed to use graphene in making transistors and other electronic devices.
Now MIT researchers have taken a major step toward making graphene with a band gap.
The new technique involves placing a sheet of graphene — a carbon-based material whose structure is… read more
Lawrence Berkeley National Laboratory (Berkeley Lab) scientists have developed the first fully integrated nanosystem for artificial photosynthesis, in which solar energy is directly converted into chemical fuels.
“Similar to the chloroplasts in green plants that carry out photosynthesis, our artificial photosynthetic system is composed of two semiconductor light absorbers, an interfacial layer for charge transport, and spatially separated co-catalysts,” says Peidong Yang, a… read more
Researchers of the Fraunhofer Institute for Applied Solid State Physics and the Karlsruhe Institute for Technology have achieved wireless transmission of 40 Gbit/s over a distance of one kilometer, a new world record.
The technology may help provide future broadband access to the Internet in rural areas and places which are difficult to access.
Using a high frequency range between 200 and 280 GHz… read more
“The next big thing” is the rise of sophisticated wearable technology, such as smart watches, and other accessories, according to Credit Suisse semiconductor analysts, Fortune reports.
The wearables market is perhaps $3 billion to $5 billion today, rising to perhaps $30 billion to $50 billion over the next three to five years, the analysts forecast, adding that there may… read more
A book Untangling the Web: A Guide to Internet Research (PDF) produced by the The National Security Agency to uncover intelligence hiding on the web has just been released by the NSA, following a FOIA request, Wired reports.
It offers advice for using search engines, the Internet Archive, and other online tools. But the most interesting is the chapter titled “Google Hacking.” For example: to… read more
Henry Markram’s Human Brain Project (HBP), backed by 1 billion euros ($1.3 billion) funding Jan. 2013 from the European Commission, plans to integrate findings from the Allen Brain Atlas, the National Institutes of Health-funded Human Connectome Project, and the Brain (“Brain Activity Map”) project, Wired reports.
The HBP is an ambitious attempt to build a complete model of a human brain using predictive reverse-engineering and simulate it… read more
Engineers combine layers of flexible materials into pressure sensors to create a wearable heart monitor thinner than a dollar bill. The skin-like device could one day provide doctors with a safer way to check the condition of a patient’s heart.
Zhenan Bao, a professor of chemical engineering at Stanford, has developed a heart monitor thinner than a dollar bill and no wider than… read more
When the hippocampus, the brain’s primary learning and memory center, is damaged, complex new neural circuits — often far from the damaged site — arise to compensate for the lost function, say life scientists from UCLA and Australia who have pinpointed the regions of the brain involved in creating those alternate pathways.
The researchers found that parts of the prefrontal cortex take over when the hippocampus is… read more