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Blog – Page 10423

DUBAI (Reuters) — Dubai has begun testing autonomous pods in a trial run the Gulf’s trade and tourism hub hopes will help its transformation into one of the smartest cities in the world.

Officials from Dubai’s Roads and Transport Authority (RTA) displayed two cube-shaped vehicles built by U.S.-based Next Future Transportation company in Italy as they spun around on a main street in Dubai.

Passersby stopped to try out the six-seat vehicles and question the Italian engineers overseeing the test.

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On February 28, 1953, American molecular biologist James D. Watson and English biophysicist Francis Crick announced to friends that they succeeded to determine the chemical structure of DNA.

Already in the 19th century biochemists were able to isolate DNA and RNA from the cell nuclei mixed together. They later found out that DNA and RNA had to be distinct from each other. The nuclein was identified by Friedrich Miescher in 1869 and he later on isolated the pure DNA from a salmon’s sperm. The term ‘nucleic acid’ was then coined by Richard Altmann and it was only found in the chromosomes. The Lithuanian-American biochemist Phoebus Levene at Rockefeller Institute made further achievements concerning the DNA’s structure, showing that its components, the sugar and phosphate chain were linked in the order phosphate-sugar-base. Each of these was named nucleotide and the scientist assumed that the DNA molecule consisted of a string of nucleotide units, which were linked together through phosphate groups.

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A potential new biomarker of aging has been discovered by researchers. This substance, found in urine, indicates oxidative damage that could be used to determine how much someone has aged biologically.

Why do we need biomarkers of ageing?

It is important for us to develop accurate and reliable biomarkers of aging, as these can show us how much we have aged biologically rather than chronologically. If we know how we are aging on a biological level, it can help to inform our healthcare strategy.

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Neural networks are powerful things, but they need a lot of juice. Engineers at MIT have now developed a new chip that cuts neural nets’ power consumption by up to 95 percent, potentially allowing them to run on battery-powered mobile devices.

Smartphones these days are getting truly smart, with ever more AI-powered services like digital assistants and real-time translation. But typically the neural nets crunching the data for these services are in the cloud, with data from smartphones ferried back and forth.

That’s not ideal, as it requires a lot of communication bandwidth and means potentially sensitive data is being transmitted and stored on servers outside the user’s control. But the huge amounts of energy needed to power the GPUs neural networks run on make it impractical to implement them in devices that run on limited battery power.

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We’re working to make AI accessible by providing lessons, tutorials and hands-on exercises for people at all experience levels. Filter the resources below to start learning, building and problem-solving.

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Tesla Inc. Chief Executive Elon Musk took to Twitter this week to decry the slow and costly pace of U.S. infrastructure projects, and thus a challenge — or boast — was born: The Boring Co. could build a tunnel across the San Francisco Bay far cheaper and far faster than current available estimates.

Musk was pointing to a San Francisco Chronicle editorial favoring a new Transbay Tube for public transportation over another cross-bay bridge to alleviate chronic traffic woes and public-transportation overcrowding in the Bay Area. The editorial cited a starting price of $12 billion for the new tunnel.

Probably about a tenth of the cost and a fifth of the time— Elon Musk (@elonmusk) February 28, 2018

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Temperature changes large and small are happening around us all the time, and scientists have come up with a machine that can convert those fluctuations into electricity, potentially powering sensors and communication devices almost out of thin air.

The energy harvesting is done through what’s called a thermal resonator: a device that captures heat on one side and radiates it over to the other. As both sides try and reach equilibrium, the energy can be caught using the process of thermoelectrics.

According to the team from the Massachusetts Institute of Technology, the new thermal resonator could keep remote sensors or any off-grid devices powered up for years, just by using temperature swings – like the natural ones between night and day, for instance.

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