Researchers track slowly splitting ‘Dent’ in Earth’s Magnetic Field

Earth’s magnetic field acts like a protective shield around the planet, repelling and trapping charged particles from the Sun. But over South America and the southern Atlantic Ocean, an unusually weak spot in the field – called the South Atlantic Anomaly, or SAA – allows these particles to dip closer to the surface than normal. Currently, the SAA creates no visible impacts on daily life on the surface. However, recent observations and forecasts show that the region is expanding westward and continuing to weaken in intensity. The South Atlantic Anomaly is also of interest to NASA’s Earth scientists who monitor the changes in magnetic strength there, both for how such changes affect Earth’s atmosphere and as an indicator of what’s happening to Earth’s magnetic fields, deep inside the globe...
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Protein produced by the Nervous System may help Treatments for Inflammatory Diseases

Woman on breathing machine
COPD is the third most common cause of death among inflammatory diseases and allergies the sixth in the United States

A Rutgers-led team may have found the key to treating inflammatory diseases like asthma, allergies, chronic fibrosis and chronic obstructive pulmonary disease (COPD).

In a study published in the journal Nature Immunology, researchers discovered that neuromedin B (NMB), a protein produced by the nervous system, was responsible for preventing overactive immune responses and damaging inflammation. An immune response refers to the body’s ability to recognize and defend itself against harmful substances. Although beneficial to help clear infections, an immune response can also promote damaging inflammation if not properly restricted...

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New Superlattice Material for Future Energy Efficient Devices

High-temperature quantum anomalous Hall regime in a MnBi 2 Te 4 ...
: Quantized Hall conductance in a magnetic superlattice MnBi2Te4/Bi2Te3.

An international team of physicists including Jennifer Cano, PhD, of Stony Brook University, has created a new material layered by two structures, forming a superlattice, that at a high temperature is a super-efficient insulator conducting current without dissipation and lost energy. The finding, detailed in a paper published in Nature Physics, could be the basis of research leading to new, better energy efficient electrical conductors.

The material is created and developed in a laboratory chamber. Over time atoms attach to it and the material appears to grow — similar to the way rock candy is formed...

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Experiments Replicate High Densities in ‘White Dwarf’ Stars

To study the pressures created by white dwarf stars, researchers fired nanometer laser light into a hohlraum—a tiny gold cylinder—bathing a 1 mm sample of a carbon-based compound in radiation heated to nearly 3.5 million degrees, at pressures ranging from 100 to 450 million atmospheres. (Illustration courtesy of Lawrence Livermore National Laboratory)

Findings could shed light on creating new materials on Earth. For the first time, researchers have found a way to describe conditions deep in the convection zone of “white dwarf” stars, which are home to some of the densest collections of matter in the Universe.

In a project conducted at the National Ignition Facility at Lawrence Livermore National Laboratory, the research team, including University of Rochester engineering profess...

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