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Aug 24, 2020

Genetic Variants May Explain High Levels of Antibodies Against Epstein-Barr Virus in MS, Study Suggests

Posted by in categories: biotech/medical, genetics, neuroscience

Genetic variants may contribute to increased levels of antibodies against proteins of the Epstein-Barr virus — a known environmental risk factor for multiple sclerosis (MS) — in MS patients and their siblings, a study suggests.

The study, “EBNA-1 titer gradient in families with multiple sclerosis indicates a genetic contribution,” was published in the journal Neurology, Neuroimmunology and Neuroinflammation.

Aug 24, 2020

A No-Nonsense Explanation of How the Higgs Gives Particles Their Masses

Posted by in category: particle physics

A simplified explanation of the higgs mechanism.

Aug 24, 2020

LHC creates matter from light

Posted by in category: particle physics

Scientists on an experiment at the Large Hadron Collider see massive W particles emerging from collisions with electromagnetic fields. How can this happen?

Aug 24, 2020

Martian Soil May Not Support Astronaut Agriculture

Posted by in categories: chemistry, food, space

In The Martian, Matt Damon’s character is able to survive being marooned on Mars by growing potatoes in the Martian soil. While fictional, this plot point reflects a real need for in-situ resource utilization (ISRU) to support long-term human space exploration missions. A new study by a team from the Florida Institute of Technology suggests that the Martian soil may be more hostile to plant life than previously thought and that the capability of growing Martian potatoes will require additional development to make agriculture feasible.

The researchers studied three examples of Martian regolith simulants. These simulants are produced from materials found on Earth to reproduce the mineralogy and chemistry of the soil we expect to find on Mars. They found that none of these simulants were able to support plant life on their own, partly due to nitrogen deficiency, and only two were able to do so when nutrient supplements were added. More crucially, none of these simulants could support plant life at all when calcium perchlorate — a common, and toxic, substance on Mars’s surface — was added. Their results suggest that any scheme for ISRU agriculture on the surface of Mars must plan to remediate, or otherwise avoid, the toxic effects of perchlorate before attempting an extraterrestrial harvest.

Aug 24, 2020

New fastest Internet speed: 178 Tbps

Posted by in categories: innovation, internet

Scientists at University College London have achieved a data transmission rate of 178 terabits per second (tbps) – a speed at which you could download the entire Netflix library in less than a second.

The breakthrough involved a collaboration between University College London (UCL) and two companies, Xtera and KDDI Research. The technology used a much wider range of colours of light, or wavelengths, than is typically found in optical fibre. Most of today’s infrastructure has a limited spectrum bandwidth of 4.5THz, with 9THz commercial systems entering the market. The researchers in this study, however, used a bandwidth of 16.8THz.

The hyperfast speed – around three million times faster than conventional broadband – was made possible by combining different “amplifier” technologies to boost signals over this wider bandwidth, and then maximised by developing new Geometric Shaping (GS) constellations. The latter are signal combinations that make best use of the phase, brightness and polarisation properties of light, manipulating the properties of each individual wavelength.

Aug 24, 2020

Fires are raging in the Amazon—again

Posted by in category: futurism

The Amazon is burning again, and the fires this year could be even more devastating than in 2019.

Aug 24, 2020

Studies in mice give clues to combatting changes in aging muscle stem cells

Posted by in categories: biotech/medical, engineering, life extension

Our muscles start to shrink and weaken when we reach our 50s and 60s in a process called sarcopenia, but new research in mice from the University of Michigan offers new insights into why this loss may occur, and how we might begin to prevent it.

Sarcopenia is the progressive loss of mass in aging, and it’s linked to other age-related pathologies such as osteoarthritis, cardiovascular disease and cancer, as well as an overall reduction in function and independence.

The research, led by Carlos Aguilar, a U-M assistant professor of biomedical engineering, focused on since they are dedicated solely to keeping muscles healthy. And to better understand stem cell function during aging, testing was conducted on two sets of mice, one “young” and one “old,” before and after muscle injury.

Aug 24, 2020

Transhuman

Posted by in categories: neuroscience, transhumanism

The belief or theory that the human race can evolve beyond its current physical and mental limitations,…

Aug 24, 2020

Massive stone structures in Saudi Arabia may be some of oldest monuments in the world

Posted by in category: futurism

Mysterious stone structures that dot lava fields and deserts across Saudi Arabia may be some of the oldest monuments in the world, scientists say.

Aug 24, 2020

APIs Are the Next Frontier in Cybercrime

Posted by in category: cybercrime/malcode

APIs make your systems easier to run — and make it easier for hackers, too.