Severe coronavirus disease-2019 (COVID-19) can progress to an acute respiratory distress syndrome (ARDS), which involves alveolar infiltration by activated neutrophils. The beta-blocker metoprolol has been shown to ameliorate exacerbated inflammation in the myocardial infarction setting.
Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain Drs Clemente-Moragón and Martínez-Milla contributed equally to this work.
With complex structures – including a strong, flexible mechanical arm carrying various tools – the splash created by a deep sea mining robot was akin to that of humans. But unlike a free-fall diver, the robot was lowered by a rope and the swing caused by wind and waves added uncertainty to its motion, according to the researchers.
Robots are perfecting their diving skills in preparation for the serious business of tapping into mineral resources in the seabed.
Researchers describe how electrons move through two-dimensional layered graphene 0 findings that could lead to advances in the design of future quantum computing platforms.
New research published in Physical Review Letters describes how electrons move through two different configurations of bilayer graphene, the atomically-thin form of carbon. This study, the result of a collaboration between Brookhaven National Laboratory, the University of Pennsylvania, the University of New Hampshire, Stony Brook University, and Columbia University 0 provides insights that researchers could use to design more powerful and secure quantum computing platforms in the future.
“Today’s computer chips are based on our knowledge of how electrons move in semiconductors, specifically silicon,” says first and co-corresponding author Zhongwei Dai, a postdoc at Brookhaven. “But the physical properties of silicon are reaching a physical limit in terms of how small transistors can be made and how many can fit on a chip. If we can understand how electrons move at the small scale of a few nanometers in the reduced dimensions of 2-D materials, we may be able to unlock another way to utilize electrons for quantum information science.”
Magnetic fields in space are sometimes called the last piece in the puzzle of star formation. They are much harder to measure than the masses or motions of star-forming clouds, and their strength is still uncertain. If they are strong, they can deflect or even oppose gas flowing into a young stellar core as it collapses under the influence of gravity. If they are moderate in strength, however, they act more flexibly and guide the flow, but don’t prevent it.
Early measurements of field strengths in molecular clouds were based on radiation from molecules whose energy levels are sensitive to magnetic field strengths. Those data suggested the fields were of moderate strength, but those conclusions were tentative. More recent observations with stronger signals measured the polarized radiation from dust grains aligned with the magnetic field. These observations obtain the field strength from the changes in field direction across the cloud map.
CfA.
NASA and Joby’s eVTOL craft could be the weird plane/chopper fusion of the future.
The National Aeronautics and Space Administration is also America’s civilian aerospace research organization. In that role, it has been instrumental in developing new technologies ranging from rocket engines to aircraft control systems.
Part of that role is running the Advanced Air Mobility (AAM) campaign to test autonomous drone technology. The latest milestone in that campaign was testing an electric vertical takeoff and landing (eVTOL) helicopter intended for eventual use as an air taxi.
Posted in neuroscience
My guest tomorrow on Womens Radio Station at 1pm is Dr Ian Hale. Author of ‘Asperger’s Autism & You’
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NFTs are here to stay and will be foundational to our new world.
The recovery ships “Bob” and “Doug” are named after the first crew SpaceX launched for NASA.
SpaceX’s new recovery ships “Bob” and “Doug” sailed into Port Canaveral this month and are named for NASA astronauts.
Are there any limits to large neural networks?
OpenAI will release GPT-4 in the next few years. It will have around 100 trillion parameters.
“The agency continues to monitor the rise of COVID cases in the Kennedy area, which combined with other factors such as weather and first-time operations, is impacting our schedule of operations,” NASA spokesperson Kathryn Hambleton told Ars. “Moving step by step, we are progressing toward launch while keeping our team as safe as possible.”
However, the SLS has already been delayed for years and surpassed budget expectations by billions of dollars. So while the pandemic has certainly thrown another wrench into the works, it’s not like things were progressing smoothly before the coronavirus struck. Regardless, Hambleton says that NASA should offer a revised schedule soon.
“As always, we will fly only when we are ready,” she told Ars Technica.
