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Category: engineering – Page 225
How Aliens Might Use ‘Network Theory’ For Galactic Communications
Advanced technological civilizations looking for efficient communication from one end of a galaxy to another would best be served by tapping into a network of transiting extrasolar earths. That is, extrasolar earths capable of being observed transiting across the face of their parent stars. Or so says an exoplanet researcher in the U.K.
Kepler-type space observatories out looking for transits of extrasolar earths, could also look for the telltale signatures of optical lasers or even alien macro-engineering projects that might be manipulated to signal another civilization.
Re-engineering Macrophages to Eat Cancer Cells
Re-engineered macrophages to treat cancer.
Today we have a new study where researchers have created immune cells that ignore the way cancer tries to hide from detection.
Hiding in plain sight
The Macrophages are one of the types of immune cell and are responsible for dealing with dangerous cells, such as those which have become cancerous. The problem is most cancer cells bypass the immune system by fooling the immune cells into leaving them alone. Cancer cells present certain molecules on their surface that act like a “do not eat me” signal to macrophages which would otherwise engulf and digest them.
Rice team developing flat microscope for the brain
HOUSTON – (July 12, 2017) – Rice University engineers are building a flat microscope, called FlatScope TM, and developing software that can decode and trigger neurons on the surface of the brain.
Their goal as part of a new government initiative is to provide an alternate path for sight and sound to be delivered directly to the brain.
The project is part of a $65 million effort announced this week by the federal Defense Advanced Research Projects Agency (DARPA) to develop a high-resolution neural interface. Among many long-term goals, the Neural Engineering System Design (NESD) program hopes to compensate for a person’s loss of vision or hearing by delivering digital information directly to parts of the brain that can process it.
New 3D chip combines computing and data storage
As embedded intelligence is finding its way into ever more areas of our lives, fields ranging from autonomous driving to personalized medicine are generating huge amounts of data. But just as the flood of data is reaching massive proportions, the ability of computer chips to process it into useful information is stalling.
Now, researchers at Stanford University and MIT have built a new chip to overcome this hurdle. The results are published today in the journal Nature, by lead author Max Shulaker, an assistant professor of electrical engineering and computer science at MIT. Shulaker began the work as a PhD student alongside H.-S. Philip Wong and his advisor Subhasish Mitra, professors of electrical engineering and computer science at Stanford. The team also included professors Roger Howe and Krishna Saraswat, also from Stanford.
Computers today comprise different chips cobbled together. There is a chip for computing and a separate chip for data storage, and the connections between the two are limited. As applications analyze increasingly massive volumes of data, the limited rate at which data can be moved between different chips is creating a critical communication “bottleneck.” And with limited real estate on the chip, there is not enough room to place them side-by-side, even as they have been miniaturized (a phenomenon known as Moore’s Law).
How Will We Stop Hackers From Invading Our Brains Once We’re Cyborgs?
Rapid developments in brain-machine interfacing and neuroprosthetics are revolutionizing the way we treat paralyzed people, but the same technologies could eventually be put to more generalized use—a development that’ll turn many of us into veritable cyborgs. Before we get to that point, however, we’ll need to make sure these neural devices are safe, secure, and as hacker-proof as possible.
In anticipation of our cyborg future, researchers from the Wyss Center for Bio and Neuroengineering in Geneva Switzerland have published a new Policy Forum paper in Science titled, “Help, hope, and hype: Ethical dimensions of neuroprosthetics.” The intent of the authors is to raise awareness of this new breed of neurotechnologies, and the various ways they can be abused. Importantly, the researchers come up with some ways to mitigate potential problems before they arise.
Atomic imperfections move quantum communication network closer to reality
An international team led by the University of Chicago’s Institute for Molecular Engineering has discovered how to manipulate a weird quantum interface between light and matter in silicon carbide along wavelengths used in telecommunications.
The work advances the possibility of applying quantum mechanical principles to existing optical fiber networks for secure communications and geographically distributed quantum computation. Prof. David Awschalom and his 13 co-authors announced their discovery in the June 23 issue of Physical Review X.
“Silicon carbide is currently used to build a wide variety of classical electronic devices today,” said Awschalom, the Liew Family Professor in Molecular Engineering at UChicago and a senior scientist at Argonne National Laboratory. “All of the processing protocols are in place to fabricate small quantum devices out of this material. These results offer a pathway for bringing quantum physics into the technological world.”