Daily Archives: May 7, 2017

In Brief Researchers believe their surgery-assisting robot is capable of performing complex brain surgeries. The machine can reduce the time of surgeries by cutting down the time it takes to cut into the skull from two hours to two and a half minutes. Doc Bot

Brain surgery is precision business, and one slip can spell doom for affected patients. Even in one of the most skilled jobs in the world, human error can still be a factor. Researchers from the University of Utah are looking to provide less opportunity for those errors to occur. A robot that the team is developing is able to reduce the time it takes to complete a complicated procedureby 50 times. According to CNN, the robot can reduce the time it takes to drill into the skull from two hours to two-and-a-half minutes.

The research was published in the journal Neurosurgical Focus and the team says it is a proof of principle that the robot is capable of performing complex surgeries. The robot is guided around vulnerable areas of the skull by data gleaned from CT scans and entered into the robots programming. The CT scans show the programmer the location of nerves or veins that the bot will have to avoid.

The teams lead neurosurgeon William Couldwelltold CNN, We can program [it] to drill the bone out safely just by using the patients CT criteria, hesaid. It basically machines out the bone.

Aside from the obvious life-savingcapabilities that such a machine would have, it also could potentially save money in the long run. Shorter surgery times will allow for lower costs per surgery as well. Theres also the added benefit of lowering the time a patient is under anesthesia, which can cause its own complications.

Robotics and automation are slowly transforming the way doctors are performing surgery. Some patients may initially balk at the thought of some machine cutting into them and messing with their insides, but these robots can perform with a precision that may be impossible for humans to achieve.

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This Robot Completes a 2-Hour Brain Surgery Procedure in Just 2.5 ... - Futurism

In BriefNASA's Chandra X-ray Observatory, scientists have discoveredthe largest wave of ultra-hot gas ever rippling through the Perseusgalaxy cluster. Studying this phenomenon can teach us more aboutthe universe. Great BigWave

Scientists have found a huge wave of ultra-hot gas rippling through the nearby Perseus galaxy cluster. And when we say huge, we mean really freaking giant.

At around 200,000 light-years across twice the size of our own Milky Way galaxy researchers suspect its the largest wave ever discovered in the known Universe, and its most likely been rolling through space for billions of years.

The wave is a type of Kelvin-Helmholtz wave, which occurs when two fluids traveling at different speeds move past each other. The most familiar example are the beautiful curling waves that crash over themselves at the beach as a result of wind blowing across the surface of the ocean.

But Kelvin-Helmholtz waves have also been discovered pulsing through our atmosphere, and have even been spotted on other planets and the surface of our own Sun.

Using data from NASAs Chandra X-ray Observatory, researchers have now found evidence of the most massive example of one of these waves to date.

The Perseus galaxy cluster is located in the Perseus constellation around 240 million light-years away, and is around 11 million light-years across, made up of a number of galaxies surrounded by a vast cloud of scorching hot gas thats so hot it only glows in X-rays.

While studying X-ray images of the Perseus cluster, researchers saw something odd a strange bay shape that kept appearing without any clear origin.

At first they thought it might have something to do with a black hole in the region, but using data from NASAs Chandra X-ray Observatory combined with radio observations and computer simulations, scientists have now discovered that this bay shape is actually a giant wave.

We think the bay feature we see in Perseus is part of a Kelvin-Helmholtz wave, perhaps the largest one yet identified, said lead researcher Stephen Walker, from NASAs Goddard Space Flight Centre.

Based on their computer simulations, the team suggests that billions of years ago, the galaxy cluster was settled, with a cooler central region of gas reaching temperatures around 30 million degrees Celsius (54 million degrees Fahrenheit), surrounded by an area with gas three times hotter.

But then a smaller galaxy cluster seems to have grazed past Perseus, sloshing those two regions together like cream stirred into coffee, creating an expanding spiral of cold gas.

Over the next 2.5 billion years, the researchers predict that the gas spread about 500,000 light-years from the centre of the cluster, creating massive waves that roll around the edges for hundreds of million of years before dissipating.

Perseus is one of the most massive nearby clusters and the brightest one in X-rays, so Chandra data provide us with unparalleled detail, said Walker.

The wave weve identified is associated with the flyby of a smaller cluster, which shows that the merger activity that produced these giant structures is still ongoing.

Getting more insight into how waves in galaxy clusters such as Perseus form and evolve doesnt just help us understand our Universe, it also allows the researchers to get an idea of the strength of the clusters magnetic field.

If it was too weak, the wave would be much bigger than the one we see today. If it was too strong, it wouldnt form at all.

The research has been published in the Monthly Notices of the Royal Astronomical Society.

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A Colossal Wave of Burning Gas Was Just Discovered Rippling Through Space - Futurism

In BriefA researcher in the U.K. has developed the world's firstsynthetic, soft tissue retina. Because it doesn't contain any hardmaterials, the device should be able to bypass many of the problemsposed by current mechanical implants. Easy on the Eyes

Anyone whos ever had a stray eyelash or a piece of dust land in their eye can attest to the pain even the tiniest foreign object can cause. While this sensitivity is essential for keeping our eyes in working order, it can also be a problem for those with retinal implants.

The retina is a light-sensitive layer of tissue at the back of the eye that plays an important role in sight, and damage to it can lead to blindness. For the past few years, retinal implants have been restoring vision for patients with such problems, but those implants have all been mechanical devices, which can wreak havoc on already damaged eyes.

The human eye is incredibly sensitive, which is why foreign bodies like metal retinal implants can be so damaging, leading to inflammation and/or scarring, University of Oxford researcher Vanessa Restrepo-Schild explained in a university news release. To that end, she led a team in creating the worlds first synthetic, soft tissue retina.

The team used lab-created biological tissue for its artificial retina, and because it doesnt incorporate any rigid foreign materials, the device is less likely to cause problems once implanted. A biological synthetic implant is soft and water-based, so much more friendly to the eye environment, explained Restrepo-Schild.

So far, the team has only tested its implant in a lab environment, so the next steps are testing it with living tissues and expanding on its functionality. Restrepo-Schild is optimistic about the future practical uses of her creation: I hope my research is the first step in a journey towards building technology that is soft and biodegradable instead of hard and wasteful.

An estimated 39 million people worldwide are blind, and the Oxford team is just one of many developing bionic eyes to help them regain their vision.

Right now, the only bionic implant approved by the Food and Drug Administration (FDA) for use in the United States is Second Sights Argus II. That system requires the implantation of a device comprising an antenna, an electronics case, and an electrode array on the patients eye. That implant works in conjunction with a pair of glasses, a video processing unit (VPU), and a cable worn outside the body to restore some of the users vision.

Other researchers are skipping the eyes altogether in their quest to bring sight to the blind. Monash University professor Arthur Lowerys bionic eyes feed information from a glasses-mounted camera directly into the brain via electrodes. This means it could be used by someone with severely damaged eyes or even no eyes at all.

Beyond helping people with impaired vision, bionic eyes could eventually give superpowers to those who already have no trouble reading the eye chart. Those implants could allow us to see in different light spectrums, give us telescopic sight, or even record what we see and wirelessly upload it to our social networks. The possibilities are endless, and breakthroughs like that of Restrepo-Schild put us one step closer to that age of superhuman sight.

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Researchers Just Found a Way to Create Better Bionic Eyes - Futurism - Futurism