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Archive for the ‘computing’ category: Page 603

Apr 1, 2017

Intel CEO admits to industry-wide conspiracy to slow CPU advances, kill frequency boosts

Posted by in category: computing

Taped remarks, smuggled from an investor meeting with Intel’s CEO Brian Krzanich, just rewrote decades of computer history. Everything you think you know is wrong. The real story? It’s inside.

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Mar 31, 2017

Scientists Hack a Human Cell and Reprogram It Like a Computer

Posted by in categories: biotech/medical, computing

New research shows that cells understand and execute directions correctly, and scientists may be able to take advantage.


By hijacking the DNA of a human cell, they showed it’s possible to program it like a simple computer.

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Mar 31, 2017

Neuroscientists Have Accidentally Discovered a Whole New Role for the Cerebellum

Posted by in categories: biotech/medical, computing, neuroscience

One of the best-known regions of the brain, the cerebellum accounts for just 10 percent of the organ’s total volume, but contains more than 50 percent of its neurons.

Despite all that processing power, it’s been assumed that the cerebellum functions largely outside the realm of conscious awareness, instead coordinating physical activities like standing and breathing. But now neuroscientists have discovered that it plays an important role in the reward response — one of the main drives that motivate and shape human behaviour.

Not only does this open up new research possibilities for the little region that has for centuries been primarily linked motor skills and sensory input, but it suggests that the neurons that make up much of the cerebellum — called granule cells — are functioning in ways we never anticipated.

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Mar 31, 2017

System allocates data center bandwidth more fairly, so no part of a webpage lags behind others

Posted by in categories: computing, habitats

A webpage today is often the sum of many different components. A user’s home page on a social-networking site, for instance, might display the latest posts from the users’ friends; the associated images, links, and comments; notifications of pending messages and comments on the user’s own posts; a list of events; a list of topics currently driving online discussions; a list of games, some of which are flagged to indicate that it’s the user’s turn; and of course the all-important ads, which the site depends on for revenues.

With increasing frequency, each of those components is handled by a different program running on a different server in the website’s data center. That reduces processing time, but it exacerbates another problem: the equitable allocation of network bandwidth among programs.

Many websites aggregate all of a page’s components before shipping them to the user. So if just one program has been allocated too little bandwidth on the data center network, the rest of the page—and the user—could be stuck waiting for its component.

Continue reading “System allocates data center bandwidth more fairly, so no part of a webpage lags behind others” »

Mar 30, 2017

How The Power Of Synthetic Biology could reshape the world

Posted by in categories: bioengineering, biotech/medical, computing, environmental

Mushroom buildings, jurassic park and terraforming.

Did you ever hear about synthetic biology? No? Imagine that we could alter and produce DNA from scratch just like an engineer. Doesn’t it sound like one of the greatest interdisciplinary achievements in recent history?

Think about it, a bio-technologist is doing more or less the work of a programmer but instead of using a computer language he’s doing it by arranging molecules embedded in every living cell. The outcome, if ever mastered, could reshape the world around us dramatically.

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Mar 30, 2017

Capacitively coupled arrays of multiplexed flexible silicon transistors for long-term cardiac electrophysiology

Posted by in categories: biotech/medical, computing

Advanced capabilities in electrical recording are essential for the treatment of heart-rhythm diseases. The most advanced technologies use flexible integrated electronics; however, the penetration of biological fluids into the underlying electronics and any ensuing electrochemical reactions pose significant safety risks. Here, we show that an ultrathin, leakage-free, biocompatible dielectric layer can completely seal an underlying array of flexible electronics while allowing for electrophysiological measurements through capacitive coupling between tissue and the electronics, without the need for direct metal contact. The resulting current-leakage levels and operational lifetimes are, respectively, four orders of magnitude smaller and between two and three orders of magnitude longer than those of other flexible-electronics technologies. Systematic electro­physiological studies with normal, paced and arrhythmic conditions in Langendorff hearts highlight the capabilities of the capacitive-coupling approach. These advances provide realistic pathways towards the broad applicability of biocompatible, flexible electronic implants.

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Mar 28, 2017

Elon Musk Wants To Put A Computer In Your Brain

Posted by in categories: computing, Elon Musk, neuroscience

Elon Musk wants to connect your brain to a computer.

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Mar 27, 2017

Elon Musk Launches Neuralink to Connect Brains With Computers

Posted by in categories: biotech/medical, computing, Elon Musk, neuroscience

Somewhere in his packed schedule, he has found time to start a neuroscience company that plans to develop cranial computers, most likely to treat intractable brain diseases first, but later to help humanity avoid subjugation at the hands of intelligent machines.

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Mar 27, 2017

Elon Musk’s new co could allow uploading, downloading thoughts: Wall Street Journal

Posted by in categories: biotech/medical, computing, Elon Musk, neuroscience, singularity

This is big: Is the Singularity a step closer?

Tesla Inc founder and Chief Executive Elon Musk has launched a company called Neuralink Corp through which computers could merge with human brains, the Wall Street Journal reported, citing people familiar with the matter.

Neuralink is pursuing what Musk calls the “neural lace” technology, implanting tiny brain electrodes that may one day upload and download thoughts, the Journal reported. (on.wsj.com/2naUATf)

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Mar 26, 2017

Scientists find a low-cost way to build genomes from scratch

Posted by in categories: biotech/medical, computing, genetics

To put it mildly, sequencing and building a genome from scratch isn’t cheap. It’s sometimes affordable for human genomes, but it’s often prohibitively expensive (hundreds of thousands of dollars) whenever you’re charting new territory — say, a specific person or an unfamiliar species. A chromosome can have hundreds of millions of genetic base pairs, after all. Scientists may have a way to make it affordable across the board, however. They’ve developed a new method, 3D genome assembly, that can sequence and build genomes from the ground up for less than $10,000.

Where earlier approaches saw researchers using computers to stick small pieces of genetic code together, the new technique takes advantages of folding maps (which show how a 6.5ft long genome can cram into a cell’s nucleus) to quickly build out a sequence. As you only need short reads of DNA to make this happen, the cost is much lower. You also don’t need to know much about your sample organism going in.

As an example of what’s possible, the team completely assembled the three chromosomes for the Aedes aegypti mosquito for the first time. More complex organisms would require more work, of course, but the dramatically lower cost makes that more practical than ever. Provided the approach finds widespread use, it could be incredibly valuable for both biology and medicine.

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