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Astrophysicists studying a popular exoplanet in its star’s habitable zone have found that electric currents in the planet’s upper atmosphere could create sufficient heating to expand the atmosphere enough that it leaves the planet, likely leaving the planet uninhabitable.

Until now, planetary scientists have thought that a habitable planet needs a strong magnetic field surrounding it to act as a shield, directing ionized particles, X-rays and ultraviolet radiation in the stellar wind around and away from its atmosphere.
That’s what happens on Earth, preventing dangerous radiation from reaching life on the surface, and what does not occur on Mars, which now lacks a global magnetic field, meaning any initial inhabitants of the red planet will probably need to live in underground caves...

Researchers at the University of Colorado Anschutz Medical Campus have found that inhibiting a key protein can stop the destruction of synapses and dendritic spines commonly seen in Alzheimer’s disease.

The study, whose first author is Tyler Martinez, a student in the Pharmacology and Molecular Medicine PhD program at the University of Colorado School of Medicine, was published recently in the journal eNeuro.

The researchers, using rodent neurons, found that targeting a protein called Mdm2 with an experimental cancer drug known as nutlin, stopped neurotoxic amyloid-b peptides that accumulate in Alzheimer’s disease (AD) from overly pruning synapses.

“Cognitive impairments associated with AD correlate with dendritic spine and excitatory synapse loss, particularly within the hip...

New phased-array transmitter design overcomes common problems of CMOS technology in the 300 GHz band, as reported by scientists from Tokyo Tech. Thanks to its remarkable area efficiency, low power consumption, and high data rate, the proposed transmitter could pave the way to many technological applications in the 300 GHz band, including body and cell monitoring, radar, 6G wireless communications, and terahertz sensors.

Today, most frequencies above the 250 GHz mark remain unallocated.

Accordingly, many researchers are developing 300 GHz transmitters/receivers to capital...

In creating five new isotopes, an international research team working at the Facility for Rare Isotope Beams, or FRIB, at Michigan State University has brought the stars closer to Earth.

The isotopes — known as thulium-182, thulium-183, ytterbium-186, ytterbium-187 and lutetium-190 — were reported Feb.

15 in the journal Physical Review Letters.

These represent the first batch of new isotopes made at FRIB, a user facility for the U.S...