Ed Yong in The Atlantic:

The brain, supposedly, cannot long survive without blood. Within seconds, oxygen supplies deplete, electrical activity fades, and unconsciousness sets in. If blood flow is not restored, within minutes, neurons start to die in a rapid, irreversible, and ultimately fatal wave. But maybe not? According to a team of scientists led by Nenad Sestan at Yale School of Medicine, this process might play out over a much longer time frame, and perhaps isn’t as inevitable or irreparable as commonly believed. Sestan and his colleagues showed this in dramatic fashion—by preserving and restoring signs of activity in the isolated brains of pigs that had been decapitated four hours earlier.
The team sourced 32 pig brains from a slaughterhouse, placed them in spherical chambers, and infused them with nutrients and protective chemicals, using pumps that mimicked the beats of a heart. This system, dubbed BrainEx, preserved the overall architecture of the brains, preventing them from degrading. It restored flow in their blood vessels, which once again became sensitive to dilating drugs. It stopped many neurons and other cells from dying, and reinstated their ability to consume sugar and oxygen. Some of these rescued neurons even started to fire. “Everything was surprising,” says Zvonimir Vrselja, who performed most of the experiments along with Stefano Daniele.
More here.


A creature that does perceive the external world to any significant degree can be called a conscious being. Could there be conscious beings other than those of earth’s animal kingdom? Perhaps there are some outside our solar system. Could a robot be a conscious being, just in this modest sense of perceiving its environment? I don’t see why not. Despite appearances, a robot can amass information through its sensors and build a representation of the external world. Granted, there are plenty of arguments purporting to show that no mere robot could be conscious in any much stronger sense.
Now scientists in southern China report that they’ve tried to narrow the evolutionary gap, creating several transgenic macaque monkeys with extra copies of a human gene suspected of playing a role in shaping human intelligence.
The space age officially began in 1957 with the launch of the Sputnik 1 satellite. But recent years have seen the beginning of a boom in the number of objects orbiting Earth, as satellite tracking and communications have assumed enormous importance in the modern world. This raises obvious concerns for the control and eventual fate of these orbiting artifacts. Natalya Bailey is pioneering a novel approach to satellite propulsion, building tiny ion engines at her company Accion Systems. We talk about how satellite technology is rapidly changing, and what that means for the future of space travel inside and outside the Solar System.
‘The problem
Bernie is in
When Brenda Hurwood was in her thirties, she had an accident that left her with a partial disability: She worked in home care support with elderly patients, and she injured her shoulder and neck while helping a client get out of a chair. The injury left her with decreased stamina and constant pain, Hurwood says, and she found it difficult to continue working. “It eroded away my self-confidence as a person,” she says. Hurwood, 63, who lives in Nova Scotia, Canada, says she developed generalized anxiety disorder, which persisted for decades. She tried different forms of therapy and various medications, but nothing worked — until 15 years ago, when a therapist introduced her to acceptance and commitment therapy.
As the
For many writers, Sam Lipsyte’s readerly eyes are the most coveted. Hordes flock to the Columbia MFA Writing Program for the chance to take his fiction workshop, where he and I first met. On campus, revved up egos struggled under the weight of our grandiose dreams. We students all crossed our fingers in hopes that we’d be one of the lucky ones to gain access to The Great Lipsyte’s secrets.
One day at lunch in the Caltech cafeteria, I was with two graduate students, Bill Press and Saul Teukolsky, and Feynman. Bill and Saul were talking about a calculation they had just done. It was a theoretical calculation, purely mathematical, where they looked at what happens if you shine light on a rotating black hole. If you shine it at the right angle, the light will bounce off the black hole with more energy than it came in with. The classical analogue is a spinning top. If you throw a marble at the top at the right angle, the marble will bounce off the top with more velocity than it came in with. The top slows down and the energy, the increased energy of the marble, comes from the spin of the top. As Bill and Saul were talking, Feynman was listening.
What are you looking for in a presidential candidate? I want someone with fresh proposals on health care or the environment, you might say. A track record that testifies to experience and effectiveness. Or you might say: Listen, I’m just looking for anyone who can defeat Donald Trump in 2020. Whatever your position, you’re likely to have already gotten into spirited conversations about it with family and friends. And as the race for the Democratic nomination heats up, the debate has become increasingly acrimonious. In fact, it’s threatening to turn into a search for a savior.
Attempting to “transport” Emily Dickinson’s poems into Portuguese is a still harder task, because Dickinson’s poetry is notable for its peculiar agrammaticality: unexpected plurals, inverted syntax, and an often complete disregard for gender, person, or agreement between nouns and verbs. As for form, Dickinson uses the structure of hymns, though, as Mutlu Konuk Blasing says, “the metric norm so severely limits the verse it empowers that the verse grows cryptic, crabbed, and idiosyncratic and resists communication itself, thus undermining the religious and social function of hymns that the form alludes to as authorization for her ‘dialect,’ her ‘New Englandly’ tune.” The result is a compact, cryptic language full of ellipses, which translates into texts that challenge the tradition of poetry as communication and gives literary language an autonomy more akin to the aesthetics of modern poetry.
Shaich is not only a self-described conscious capitalist, but a board member of Mackey’s Conscious Capitalism, Inc. He and other conscious capitalists operate under the assumption that consumers will prefer their businesses because they are doing good. They assert that by publicly taking on charitable initiatives that benefit people beyond their shareholders, they will lower marketing costs and raise profits—because customers will like them and thus be more loyal. But conscious capitalism is a young, largely untested business theory, and its efficacy claims haven’t been well studied. With Eckhardt and Dobscha’s research, that’s beginning to change. Over the course of a few months in 2017, they cased the Panera Cares in Boston and reviewed every single Yelp review of all five Panera Cares locations. They found that the food secure and insecure both had profound “physical, psychological, and philosophical” problems with the restaurant.
This is like losing the hard drive of medieval Paris. Every inch had meaning — not just the meaning imbued by the carpenter and the stonemason, but the meaning imbued by the student, the monk, the penitent — and then by the emergent French bourgeois society.
Suitable protein targets are needed to develop new anticancer drug-based treatments. Writing in Nature,
The video clip, slightly pixelated and shot in black and white, shows two men in the throes of laughter. One, white, leans closer, holding a microphone near his companion’s mouth. The other, Black, who was laughing with his head turned away, exposing a handsome set of teeth, composes himself, facing his interviewer, yet he is unable to hide his boyish smile.