A team of researchers from Russia, the Czech Republic and Israel has found that the reason some blind mole rats live longer than other small creatures is because they have short immune memory. In their paper published in the journal Nature Aging, the group describes their study of the adaptive immune system of long-lived blind mole rats.
Stimuli-responsive control of drug activation can mitigate issues caused by poor drug selectivity. Now, it has been shown that mechanical force—induced by ultrasound—can be used to activate drugs in three different systems. This approach has enabled the activation of antibiotics or a cytotoxic anticancer agent from synthetic polymers, polyaptamers and nanoparticle assemblies.
Circa 2018 o, o.
When it comes to the future of transportation, there is no shortage of intriguing and possibly crazy vehicle concepts. By 2100, commuters could be zipping around in passenger pods that fly through vacuum sealed tubes at 700 mph, soaring through the skies in autonomous personal rotorcraft that look like quadcopter drones, blasting off in rockets that fly from city to city, or even boarding commercial jetliners to fly more than five times the speed of sound.
But as far as wild transportation ideas go, Akka Technologies’ flying train might take the cake.
New research helps understand how plate tectonics powers life on Earth. Plate tectonics are responsible for the deep-carbon and deep-water cycles. Arrangement of continents has changed sea level in the past. The evolution of life is modified by tectonics — continents are rafts with evolvi.
The mechanisms that allow the computer to learn are directly embedded in its hardware structure—no extra AI software required.
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Canadian YouTuber Linus Sebastián reviewed SpaceX’s Starlink Internet on his Linus Tech Tips channel (video below). SpaceX currently operates approximately 1085 internet-beaming Starlink satellites in low Earth orbit that will be part of a constellation of over 4400 satellites designed to connect the planet to the world wide web. To connect to space-based internet Starlink customers use a dish antenna and Wi-Fi router device. The company says the dish antenna is more advanced than what is currently in-use aboard fighter jets. The dish features a phased-array antenna, capable of transmitting and receiving signal from all directions as the satellites move across the sky. This week SpaceX started to accept preorders of the service via Starlink.com.
Linus Tech Tips created a great review video in which he tests Starlink’s speed and also talks about important aspects of the Starlink constellation, including a brief discussion on how the network works. In the video, Linus unboxes the Starlink Kit that costs $499USD, it includes a dish antenna, mounting equipment, power supply, and Wi-Fi router/modem device. The Starlink broadband internet service has no data cap, priced at $99USD per month. Linus and his team install the dish outdoors on top of the roof and connect to the network. First, he used the service to play multiple 4K YouTube videos at once, with good results. He just noticed a small lag when trying to load YouTube thumbnails and comments as four high-definition videos played simultaneously. Then Linus ran an online speed test, Starlink provided him with internet download speed of around 138 megabits per second (Mbps) and latency of 27 milliseconds (ms).
Facebook says that political content currently constitutes only 6% of what people see on the platform. It will begin running experiments to reduce that amount for a small percentage of people in Canada, Brazil and Indonesia immediately, with tests in the U.S. in weeks to come.
The company said it isn’t removing political content but rather exploring ways to reduce the exposure for users who would prefer not to see it. In practice, that means Facebook will still allow users to post about politics and argue among friends, but its algorithms will de-prioritize those conversations and spread them less widely across the network.
Facebook says it is beginning to reduce how much political content users see on its main platform, potentially diminishing the role that the world’s largest social network plays in elections and civil discourse more broadly.
CRISPR/Cas9 treatment allowed mice to live 25% longer and be physically stronger. Biologists see these results being relatively easy to reproduce on humans in a clinical setting.
Cell-Intrinsic Learning And Memory Storage Dynamics — Dr. David Glanzman Ph.D., Professor, in the Department Integrative Biology and Physiology, at UCLA College of the Life Sciences.
Dr. David Glanzman is Professor, in the Department Integrative Biology and Physiology, at UCLA College of the Life Sciences, Professor in the Department of Neurobiology in the David Geffen School of Medicine, and Member, Brain Research Institute.
