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Jul 29, 2020

Steps toward room-temperature superconductivity

Posted by in categories: materials, physics

The possibility of achieving room temperature superconductivity took a tiny step forward with a recent discovery by a team of Penn State physicists and materials scientists.

The surprising discovery involved layering a called molybdenum sulfide with another material called molybdenum carbide. Molybdenum carbide is a known superconductor—electrons can flow through the material without any resistance. Even the best of metals, such as silver or copper, lose energy through heat. This loss makes long-distance transmission of electricity more costly.

“Superconductivity occurs at very , close to absolute zero or 0 Kelvin,” said Mauricio Terrones, corresponding author on a paper in Proceedings of the National Academy of Sciences published this week. “The alpha phase of Moly carbide is superconducting at 4 Kelvin.”

Jul 29, 2020

The quantum Hall effect continues to reveal its secrets to mathematicians and physicists

Posted by in categories: mathematics, quantum physics

A transformative experiment is yielding fresh insights 40 years after the effect’s discovery — and energizing transdisciplinary collaborations.

Jul 29, 2020

Drug stimulation of neural stem cell repair leads to promising impact on treatment of childhood brain injury

Posted by in categories: biotech/medical, neuroscience

Through a cross-species study of metformin, a common drug used to treat Type 2 diabetes, a team of researchers and clinicians from the Donnelly Center and The Hospital for Sick Children (SickKids) has shown that it could one day be possible to repair brain injury using resident cells in the brain.

“No one’s actually shown before that you can take a drug where there’s a known mechanism on endogenous stem cells and demonstrate that it’s even possible to induce and positive recovery,” says Donald Mabbott, Program Head and Senior Scientist in the Neurosciences & Mental Health program at SickKids, and co-author of a study published in Nature Medicine on July 27.

Mabbott says metformin is a potential game-changer in terms of how childhood brain injury is treated.

Jul 29, 2020

Gamma Factory: New ‘Super Light Source’ at CERN for Fascinating Insights Into Atoms

Posted by in category: particle physics

International team of scientists with Mainz participation proposes plans for high-intensity gamma radiation source at CERN.

The ‘Gamma Factory initiative’ – an international team of scientists – is currently exploring a novel research tool: They propose to develop a source of high-intensity gamma rays using the existing accelerator facilities at CERN. To do this, specialized ion beams will be circulated in the SPS and LHC storage rings, which will then be excited using laser beams so that they emit photons. In the selected configuration, the energies of the photons will be within the gamma radiation range of the electromagnetic spectrum. This is of particular interest in connection with spectroscopic analysis of atomic nuclei. Furthermore, the gamma rays will be designed to have a very high intensity, several orders of magnitude higher than those of systems currently in operation.

Jul 29, 2020

Mounting poisonings, blindness, deaths as toxic hand sanitizers flood market

Posted by in category: futurism

The FDA is “extremely concerned” by the growing risks of toxic sanitizers.

Jul 29, 2020

Newer PFAS compound detected for first time in Arctic seawater

Posted by in categories: biotech/medical, food, health

This sucks.

Per- and polyfluoroalkyl substances (PFAS), found in many household products and food packages, have raised concerns because of their persistence and possible toxicity to people and wildlife. Because the compounds don’t break down naturally, they have become environmental contaminants. Now, researchers reporting in Environmental Science & Technology have studied the transport of 29 PFAS into and out of the Arctic Ocean, detecting a newer compound for the first time in Arctic seawater.

After studies indicated that two PFAS—PFOA and PFOS—can cause cancer, a compromised immune response and other health problems in lab animals, the two compounds were voluntarily phased out by industry. However, these legacy compounds are still widely detected in the environment. Intended as a safer replacement for PFOA, HFPO-DA (sold under the trade name GenX) is now thought to pose similar health and persistence concerns. Hanna Joerss and colleagues wanted to investigate the long-range, oceanic transport of legacy and replacement PFAS to the Arctic Ocean—a remote body of water connected to the Atlantic Ocean by the Fram Strait, which is located between Svalbard and Greenland.

Continue reading “Newer PFAS compound detected for first time in Arctic seawater” »

Jul 29, 2020

Tiger numbers ‘making a remarkable comeback’ in five countries, experts say

Posted by in category: futurism

Such great news!!

Tiger numbers are making a “remarkable comeback” in five of the countries the species is found, scientists say.

The big cat populations in Bhutan, China, India, Nepal and Russia are all said to be increasing following the launch of the TX2 initiative a decade ago.

Continue reading “Tiger numbers ‘making a remarkable comeback’ in five countries, experts say” »

Jul 29, 2020

Turkey passes controversial law regulating social media

Posted by in category: law

Turkey’s parliament passed a law regulating social media on Wednesday, that critics said will increase censorship and help authorities silence dissent.

Jul 29, 2020

Say “Bon Voyage” to our Mars Perseverance Rover!

Posted by in category: space

We’re going back to Mars! NASA’s Perseverance Mars Rover will be launching soon for its seven-month journey to the Red Planet to search for signs of ancient life. And it’s bringing along a friend: a little helicopter named Ingenuity! Ingenuity will test the first powered flight on Mars.

Join us in wishing Perseverance and Ingenuity “bon voyage” on their #CountdownToMars!

Jul 29, 2020

Mission Overview: NASA’s Perseverance Mars Rover

Posted by in categories: futurism, space

An ambitious mission to a very special landing site: our Perseverance rover is heading to the Red Planet to search for signs of ancient life, collect samples for future return to Earth, and help pave the way for human exploration.