Chinese Doctors Use 3D-Printing in Pioneering Surgery to Replace Half of Man’s Skull
Surgeons at Xijing Hospital in Xi’an, Shaanxi province in Northwest China are using 3D-printing in a pioneering surgery to help rebuild the skull of a man who suffered brain damage in a construction accident.
Hu, a 46-year-old farmer, was overseeing construction to expand his home in Zhouzhi county last October when he was hit by a pile of wood and fell down three storeys.
Although he survived the fall, the left side of his skull was severely crushed and the shattered bone fragments needed to be removed, which has led to a depression of one side of his head.
Due to his injuries, Hu cannot see well out of his left eye, experiences double vision (diplopia) and is also unable to speak and write.
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“Passive Communications Satellite (PasComSat) was a communications satellite launched by USAF as part of the Orbiting Vehicle program.
“The grid-sphere design as opposed to a fully covered sphere was aimed at reducing the effects of solar pressure and space drag. It was made of a soft aluminum wire grid imbedded in a special plastic designed to dissolve in space under the sun’s strong ultraviolet rays.
“On July 13, 1966, the satellite was launched from Vandenberg Air Force Base, California, atop an Atlas rocket. It went into orbit and was automatically inflated with helium. The plastic covering soon dissolved, leaving an open aluminum structure orbiting the earth. Tests indicated that the satellite would remain in orbit for at least 11 years and that it had a reflective power five times greater than that of a solid sphere.
“The satellite decayed from orbit on January 4, 1978.”
All green — not solarpunk vs solarpunk I just wanted to address some aesthetics which I guess separate solarpunk from generic green concepts.
Something that always bothers be about ‘futuristic’ designs, whether green or not, is that the designs always seems to look sterile, smooth, textureless, cold, unwelcoming, and very very white.
And the common concept cities! They are always so open and spread apart! And you know what that means? It is a city specifically designed with cars in mind. I think that doesn’t always register for a lot of people. Spread out cities = made for car culture, condensed cities = made for public transit, biking, walking, etc.
What I want for solarpunk — and for the future — is warmth! color! texture! craftsmanship! And a very important feature is that I want it to be built first and foremost for streetcars and the like. Cars are useful and they can stick around, but in a condensed city people won’t need to rely on them as much. In modern American cities, many people need cars because of how cities are designed.
I hope I am being clear on how solarpunk differs from common concepts of a green future!
Edit: now that I think about it, it would be really cool to set up a story with two rivaling green cities, one that looks like the left and leans more toward capitalism, and one that looks like the right and leans more toward socialism.
Armed with laptops, blood-pressure monitors and pregnancy tests, the young women ride their bicycles to remote villages providing health, agricultural and IT services. They are known as “Infoladies,” and they are working to bring change to rural Bangladesh.
“I feel like a rockstar while passing through the village roads, as children clap when I pass them,” said 30-year-old Infolady Shahina Begum.
The program — launched by local not-for-profit Dnet to facilitate the broader dissemination of information technology in the country — has gained worldwide attention and may soon be replicated in other countries in Africa, Latin America and South Asia.
“An Infolady is an entrepreneur. They are innovative, and sometimes they come up with services that were very much in demand but not available,” said the head of the initiative, Laura Mohiuddin. “These women are also agents of change.”
Spry shortening was introduced in 1936 and was discontinued in the 1970s, and their spokesperson was Aunt Jenny. But there was more than one Aunt Jenny, it turns out. The one everyone knows, the older lady in the lower image, replaced a younger one who likely (similar to Betty Crocker) never existed and was only a drawing.
Recently I found this 1953 cookbook at an estate sale for 50¢ (you can own one too for more) and that’s the first thing I noticed, Aunt Jenny’s youth.
DARPA’s tiny implants will hook directly into your nervous system, treat diseases and depression without medication
DARPA, on the back of the US government’s BRAIN program, has begun the development of tiny electronic implants that interface directly with your nervous system and can directly control and regulate many different diseases and chronic conditions, such as arthritis, PTSD, inflammatory bowel diseases (Crohn’s disease), and depression. The program, called ElectRx (pronounced ‘electrics’), ultimately aims to replace medication with “closed-loop” neural implants, which constantly assess the state of your health, and then provide the necessary nerve stimulation to keep your various organs and biological systems functioning properly. The work is primarily being carried out with US soldiers and veterans in mind, but the technology will certainly percolate down to civilians as well.
The ElectRx program will focus on a fairly new area of medical therapies called neuromodulation. As the name implies, neuromodulation is all about modulating your nervous system, to improve or fix an underlying problem. Notable examples of neuromodulation are cochlear implants, which restore hearing by directly modulating your brain’s auditory nerve system, and deep brain stimulation (DBS), which appears to be capable of curing/regulating various conditions (depression, Parkinson’s) by overriding erroneous neural spikes with regulated, healthy stimulation.
So far, these implants have been fairly big things — about the size of a deck of cards — which makes their implantation fairly invasive (and thus quite risky). Most state-of-the-art implants also lack precision — the stimulating electrodes are usually placed in roughly the right area, but it’s currently very hard to target a specific nerve fiber (a bundle of nerves). With ElectRx, DARPA wants to miniaturize these neuromodulation implants so that they’re the same size as a nerve fiber. This way they can be implanted with a minimally invasive procedure (through a needle) and attached to specific nerve fibers, for very precise stimulation.