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A little-studied liver protein may be responsible for the well-known benefits of exercise on the aging brain, according to a new study in mice by scientists in the UC San Francisco Eli and Edythe Broad Center for Regeneration Medicine and Stem Cell Research. The findings could lead to new therapies to confer the neuroprotective effects of physical activity on people who are unable to exercise due to physical limitations.

Exercise is one of the best-studied and most powerful ways of protecting the from and has been shown to improve cognition in individuals at risk of neurodegenerative disease such as Alzheimer’s disease and frontotemporal dementia —even those with rare gene variants that inevitably lead to dementia.

But many are not able to exercise regularly due to or disabilities, and researchers have long searched for therapies that could confer some of the same neurological benefits in people with low physical activity levels.

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Mars’ poles contain millennia-old ice deposits. They also contain carbon dioxide, iron, aluminium, silicon and sulfur, which could be used to make glass, brick and plastic. Furthermore, the planet’s atmosphere contains enough hydrogen and methanol for fuel.

The tallest mountain on Mars and in the solar system is Olympus Mons, and it is two and a half times taller than Mt. Everest. A Martian canyon system, called Valles Marineris, is the length of the entire continental United States and three times deeper than the Grand Canyon.

Mars Colony: Location, Location, Location

Continue reading “This map shows that Mars and Earth aren’t that different” | >

SHANGHAI/BEIJING — U.S. electric vehicle maker Tesla Inc is “very close” to achieving level 5 autonomous driving technology, Chief Executive Elon Musk said on Thursday, referring to the capability to navigate roads without any driver input.

Musk added that he was confident Tesla would attain basic functionality of the technology this year, in remarks made via a video message at the opening of Shanghai’s annual World Artificial Intelligence Conference (WAIC).

The California-based automaker currently builds cars with an autopilot driver assistance system.

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The Earth’s magnetic field flips, every few hundred thousand years or so on average, which means magnetic north becomes magnetic south and vice versa (the planet doesn’t actually turn upside down). New research suggests this change of direction can happen up to 10 times faster than previously thought.

That’s big news for scientists studying how the magnetic field shifts affect life on Earth, how our planet has evolved over time, and how we might be better able to predict the next reversal in the coming years.

Past palaeomagnetic studies have shown that the magnetic field could change direction at up to 1 degree a year, but the latest study suggests that movements of up to 10 degrees annually are possible.

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Say something Eric Klien.

Given the increasing proliferation of AI, I recently carried out a systematic review of AI-driven regulatory gaps. My review sampled the academic literature on AI in the hard and social sciences and found fifty existing or future regulatory gaps caused by this technology’s applications and methods in the United States. Drawing on an adapted version of Lyria Bennett-Moses’s framework, I then characterized each regulatory gap according to one of four categories: novelty, obsolescence, targeting, and uncertainty.

Significantly, of the regulatory gaps identified, only 12 percent represent novel challenges that compel government action through the creation or adaptation of regulation. By contrast, another 20 percent of the gaps are cases in which AI has made or will make regulations obsolete. A quarter of the gaps are problems of targeting, in which regulations are either inappropriately applied to AI or miss cases in which they should be applied. The largest group of regulatory gaps are ones of uncertainty in which a new technology is difficult to classify, causing a lack of clarity about the application of existing regulations.

Novelty. In cases of novel regulatory gaps, a technology creates behavior that requires bespoke government action. Of the identified cases, 12 percent are novel. This includes, for example, the Food and Drug Administration’s (FDA) standard for certifying the safety of high-risk medical devices which is applicable to healthcare algorithms, also called black-box medicine.

Continue reading “Can existing laws cope with the AI revolution?” | >

A German research institute announced Tuesday a new video standard that halves the bitrate required for streaming, allowing higher quality images on lower-power devices and opening the door wider to adoption of super high-definition 8K content.

The Fraunhofer Heinrich Hertz Institute said the new codec, VVC—Versatile Video Coding, will not compromise . With ever-increasing demands on bandwidth for streaming, Zoom conferencing, 4K content and 360-degree panoramic videos, and especially during heightened web use spurred by global quarantines, VVC comes at an opportune time.

The increased transmission efficiency the codec promises to achieve would help major streaming services such as Amazon Prime Video and Hulu reduce costs as they prepare for higher-resolution fare down the road.

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