Physicists Generate New Nanoscale Spin Waves

Physicists generate new nanoscale spin waves
Illustration of the experiment. Credit: Dreyer et al, Nature Communications (CC-BY-SA 4.0)

Strong alternating magnetic fields can be used to generate a new type of spin wave that was previously just theoretically predicted. This was achieved for the first time by a team of physicists from Martin Luther University Halle-Wittenberg (MLU). They report on their work in the scientific journal Nature Communications and provide the first microscopic images of these spin waves.

The basic idea of spintronics is to use a special property of electrons – spin – for various electronic applications such as data and information technology. The Spin is the intrinsic angular momentum of electrons that produces a magnetic moment...

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Daily Multivitamin may Improve Cognition and Possibly Protect Against Decline, study suggests

Three-year change in the episodic memory composite (A) and executive function composite (B) for the active and placebo multivitamin-mineral groups (plotted values: mean standardized (z) scores and 95% confidence intervals).

In the study, researchers estimated that three years of multivitamin supplementation roughly translated to a 60-percent slowing of cognitive decline (about 1.8 years).

Could taking a daily multivitamin help maintain cognitive health with aging and possibly prevent cognitive decline? According to new research from Wake Forest University School of Medicine, conducted in collaboration with Brigham and Women’s Hospital in Boston, taking a daily supplement may improve cognition in older adults, but additional studies are needed to confirm these findings before any hea...

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DART Spacecraft Prepares to Collide with Asteroid Target later this Month

An illustration of a spacecraft flying into an asteroid

As NASA prepares to usher in a new form of planetary defense, one Johns Hopkins engineer will be eagerly awaiting the big collision that she is helping orchestrate.

Elena Adams, the mission systems engineer at the Johns Hopkins Applied Physics Laboratory, and her team will spend the next two weeks carefully observing Didymos, a double-asteroid system that poses no threat to Earth and yet will be the target of NASA’s Double Asteroid Redirection Test—a first-of-its-kind, proof-of-concept mission that will intentionally crash a spacecraft into an asteroid’s moonlet to deflect it away from its course.

“During the day of impact, I’ll be more of a conductor, making sure that all of the orchestra is following the beat and playing their parts,” said Adams, who will discuss the mission...

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The Blood Stem Cell Research that could Change Medicine of the Future

Tubes filled with coloured liquid join a microfluid device set in perspex
The microfluidic device that emulated an embryo’s heartbeat and blood circulation. The cell seeding channels are filled with red food dye, while the heart ventricular contraction control channels and circulation valve control channels are filled with blue and green food dye respectively. Photo: UNSW/Jingjing Li

Making stem cells from a patient’s adult cells — rather than human embryos — is one of the holy grails in modern medicine treatments. New research brings us two steps closer.

Biomedical engineers and medical researchers at UNSW Sydney have independently made discoveries about embryonic blood stem cell creation that could one day eliminate the need for blood stem cell donors.

The achievements are part of a move in regenerative medicine towards the use of ‘induced pluripoten...

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