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Aug 3, 2020

DeepMind releases Acme, a distributed framework for reinforcement learning algorithm development

Posted by in categories: information science, robotics/AI, transportation

DeepMind this week released Acme, a framework intended to simplify the development of reinforcement learning algorithms by enabling AI-driven agents to run at various scales of execution. According to the engineers and researchers behind Acme, who coauthored a technical paper on the work, it can be used to create agents with greater parallelization than in previous approaches.

Reinforcement learning involves agents that interact with an environment to generate their own training data, and it’s led to breakthroughs in fields from video games and robotics to self-driving robo-taxis. Recent advances are partly attributable to increases in the amount of training data used, which has motivated the design of systems where agents interact with instances of an environment to quickly accumulate experience. This scaling from single-process prototypes of algorithms to distributed systems often requires a reimplementation of the agents in question, DeepMind asserts, which is where the Acme framework comes in.

Aug 3, 2020

Our Brains Divulge Our Decisions Before We Even Know Them

Posted by in category: neuroscience

If you think you control your own thoughts and decisions, think again. Recent research reveals that unconscious thoughts give birth to our mental imagery and personal choices.

Aug 3, 2020

Transcranial Stimulation to Prevent Fear Memories From Returning

Posted by in categories: biological, neuroscience

Summary: Repetitive transcranial memory stimulation applied to the dorsolateral prefrontal cortex modifies the negative effects of fear memories. The findings could have implications for the treatment of PTSD.

Source: University of Bologna

A research group from the University of Bologna has succeeded in modifying the negative effect of a returning memory that triggers fear, and developed a new non-invasive experimental protocol. The result of this study, published in the journal Current Biology, is an innovative protocol that combines fear conditioning—a stimulus associated with something unpleasant that induces a negative memory—and the neurostimulation of a specific site of the prefrontal cortex.

Aug 3, 2020

Virgin Galactic partners with Rolls-Royce as it looks to build an aircraft for supersonic air travel

Posted by in category: space travel

Space tourism venture Virgin Galactic announced it signed an agreement with Rolls-Royce to develop an aircraft for supersonic travel, giving a first look on Monday of the coming vehicle’s design.

Supersonic travel is a long-term bet for Virgin Galactic, which has been developing reusable spacecraft capable of sending people on short trips to the edge of space for more than a decade.

Virgin Galactic said it completed a mission concept review alongside NASA of its supersonic vehicle design and now will work with the Federal Aviation Administration to create a framework for certifying the aircraft for flight. Previously Boeing’s venture arm invested $20 million in Virgin Galactic, specifically toward helping the company build a supersonic aircraft.

Aug 3, 2020

How AI Will Make Drug Discovery Low-Cost, Ultra-Fast, and Personalized

Posted by in categories: biotech/medical, robotics/AI

Life-saving Ai


If you had to guess how long it takes for a drug to go from an idea to your pharmacy, what would you guess? Three years? Five years? How about the cost? $30 million? $100 million?

Well, here’s the sobering truth: 90 percent of all drug possibilities fail. The few that do succeed take an average of 10 years to reach the market and cost anywhere from $2.5 billion to $12 billion to get there.

Continue reading “How AI Will Make Drug Discovery Low-Cost, Ultra-Fast, and Personalized” »

Aug 3, 2020

Hackers infect multiple game developers with advanced malware

Posted by in category: cybercrime/malcode

One of the world’s most prolific hacking groups recently infected several Massively Multiplayer Online game makers, a feat that made it possible for the attackers to push malware-tainted apps to one target’s users and to steal in-game currencies of a second victim’s players.

Aug 3, 2020

Humans Might Be So Sickly Because We Evolved to Avoid a Single Devastating Disease

Posted by in categories: biotech/medical, chemistry, evolution

Hundreds of thousands of years ago, our ancestors evolved a simple trick that could have helped thwart a major infectious disease. It probably saved our skins, but the change was far from a perfect solution.

New research has uncovered evidence that mutations arising between 600,000 and 2 million years ago were part of a complex of adaptations that may have inadvertently made us prone to inflammatory diseases and even other pathogens.

An international team of researchers compared around a thousand human genomes with a few from our extinct cousins, the Neanderthals and Denisovans, to fill in missing details on the evolution of a family of chemicals that coat the human body’s cells.

Aug 2, 2020

UAE starts first nuclear reactor at controversial Barakah plant

Posted by in categories: military, nuclear energy

Barakah, which was originally scheduled to open in 2017, has been dogged by delays and is billions of dollars over budget. It has also raised myriad concerns among nuclear energy veterans who are concerned about the potential risks Barakah could visit upon the Arabian Peninsula, from an environmental catastrophe to a nuclear arms race.


Experts have raised concerns about potential risks Barakah plant could pose to the environment and regional security.

Continue reading “UAE starts first nuclear reactor at controversial Barakah plant” »

Aug 2, 2020

Caltrans repaves highway with plastic bottles

Posted by in category: transportation

The plastic from old beverage bottles is melted down and used as a binder to hold asphalt together. Roughly 150,000 bottles are used in 1 mile of roadway.

Aug 2, 2020

Quantum Physicists Crack Mystery of “Strange Metals” – A New State of Matter

Posted by in categories: cosmology, quantum physics

Strange metals have surprising connections to high-temperature superconductors and black holes.

Even by the standards of quantum physicists, strange metals are just plain odd. The materials are related to high-temperature superconductors and have surprising connections to the properties of black holes. Electrons in strange metals dissipate energy as fast as they’re allowed to under the laws of quantum mechanics, and the electrical resistivity of a strange metal, unlike that of ordinary metals, is proportional to the temperature.

Generating a theoretical understanding of strange metals is one of the biggest challenges in condensed matter physics. Now, using cutting-edge computational techniques, researchers from the Flatiron Institute in New York City and Cornell University have solved the first robust theoretical model of strange metals. The work reveals that strange metals are a new state of matter, the researchers report July 22 in the Proceedings of the National Academy of Sciences.