The Institute of Archaeology of the Russian Academy of Science has found settlements that date from roughly 10,000 years ago during the early stages of the Butovo culture, described as the communities of Mesolithic hunter-gatherers that occupied the upper catchment area of the forest zone in Western Russia during this period.
The Mesolithic period took place between 10,000 BCE and 8,000 BCE and is otherwise identified as the Middle Stone Age.
Sam Zeloof, 21 builds homemade semiconductors in his family’s garage in Flemington, N.J. (In his latest video, Zeloof refers to it casually as his “garage fab.”) The Carnegie Mellon University student has been doing it since high school, becoming a truly inspiring example of just how far a do-it-yourself spirit can take you.
And best of all, he’s documented it all in detailed blog posts and nearly 50 videos uploaded to YouTube, sharing what he’s learned for others who might follow in his footsteps.
“I hope that my success will inspire others,” Zeloof writes in an early blog post, “and help start a revolution in home chip fabrication. Let’s democratize the tools of innovation.”
High-energy cosmic rays have proven elusive… but we may have found their source.
Thanks to new research led by the University of Nagoya, scientists have quantified the number of cosmic rays produced in a supernova remnant for the first time. This research has helped resolve a 100-year mystery and is a major step towards determining precisely where cosmic rays come from.
While scientists theorize that cosmic rays originate from many sources — our Sun, supernovae, gamma-ray bursts (GRBs), and active galactic nuclei (sometimes called quasars) — their exact origin has been a mystery since they were first discovered in 1912. Similarly, astronomers have theorized that supernova remnants (the after-effects of supernova explosions) are responsible for accelerating them to nearly the speed of light.
As they travel through our galaxy, cosmic rays play a role in the chemical evolution of the interstellar medium (ISM). As such, understanding their origin is critical to understanding how galaxies evolve.
An enzyme with an elusive role in severe inflammation may be a key mechanism driving COVID-19 severity and could provide a new therapeutic target to reduce COVID-19 mortality, according to a study published in the Journal of Clinical Investigation.
Researchers from the University of Arizona, in collaboration with Stony Brook University and Wake Forest School of Medicine, analyzed blood samples from two COVID-19 patient cohorts and found that circulation of the enzyme — secreted phospholipase A2 group IIA, or sPLA2-IIA, — may be the most important factor in predicting which patients with severe COVID-19 eventually succumb to the virus.
Researchers have identified what may be the key molecular mechanism responsible for COVID-19 mortality – an enzyme related to neurotoxins found in rattlesnake venom.
Is this the Air Force’s new top secret stealth drone?
A mysterious aircraft caught flying over the Philippines could be the United State’s ultra-secret new RQ-180 stealth drone, aviation experts believe.
Local landscape photographer Michael Fugnit captured the craft on Thursday when he was attempting to take pictures of the sunrise by the coast of Santa Magdalena, a resort town 364 miles south of Manila.
Fugnit regularly watches the skies for planes, and quickly realized that the batwing-shaped flyer was unlike any commercial or military aircraft he’d ever seen before.
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The robots can tumble up slopes.
A new study investigates tiny tumbling soft robots that can be controlled using rotating magnetic fields. The technology could be useful for delivering drugs to the nervous system. In this latest study, researchers put the robots through their paces and showed that they can climb slopes, tumble upstream against fluid flow and deliver substances at precise locations to neural tissue.
Would you let a tiny MANiAC travel around your nervous system to treat you with drugs? You may be inclined to say no, but in the future, “magnetically aligned nanorods in alginate capsules” (MANiACs) may be part of an advanced arsenal of drug delivery technologies at doctors’ disposal. A recent study in Frontiers in Robotics and AI is the first to investigate how such tiny robots might perform as drug delivery vehicles in neural tissue. The study finds that when controlled using a magnetic field, the tiny tumbling soft robots can move against fluid flow, climb slopes and move about neural tissues, such as the spinal cord, and deposit substances at precise locations.
Diseases in the central nervous system can be difficult to treat. “Delivering drugs orally or intravenously, for example, to target cancers or neurologic diseases, may affect regions of the body and nervous system that are unrelated to the disease,” explained Lamar Mair of Weinberg Medical Physics, a medical device company based in the US and an industrial partner on the study. “Targeted drug delivery may lead to improved efficacy and reduced side-effects due to lower off-target dosing.”
Elon Musk, CEO of Tesla and SpaceX just confirmed that Starlink will transfer data close to speed of light. According to Gizmochina, the speed will be close to 97% speed of light.
Starlink is a constellation of thousands satellites aiming to deliver high-speed internet to consumers anywhere on the planet. While the Starlink service is still in beta, the company has over 100,000 users in 14 countries so far, with over half a million orders or refundable deposits placed by potential customers.
As of today there are 1,700 satellites in orbit. SpaceX intends to provide satellite internet connectivity to underserved areas of the planet, as well as provide competitively priced service in more urbanized areas. The company has stated that the positive cash flow from selling satellite internet services would be necessary to fund their Mars plans.
Summary: An overgrowth in the gastrointestinal tract of the bacteria Klebsiella in preterm babies was associated with an increased presence of certain immune cells and the development of neurological damage. The findings suggest a link between microbiota and brain development.
Source: University of Vienna.
Extremely premature infants are at high risk for brain damage. Researchers at the University of Vienna and the Medical University of Vienna have now found possible targets for the early treatment of such damage outside the brain: Bacteria in the gut of premature infants may play a key role.
The ultimate goal of neuroscience is to learn how the human brain gives rise to human intelligence and what it means to be intelligent. Understanding how the brain works is considered one of humanity’s greatest challenges.
Jeff Hawkins thinks that the reality we perceive is a kind of simulation, a hallucination, a confabulation. He thinks that our brains are a model reality based on thousands of information streams originating from the sensors in our body. Critically — Hawkins doesn’t think there is just one model but rather; thousands.
Jeff has just released his new book, A thousand brains: a new theory of intelligence. It’s an inspiring and well-written book and I hope after watching this show; you will be inspired to read it too.
Pod version: https://anchor.fm/machinelearningstreettalk/episodes/59—Je…ry-e16sb64
