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Science News Archive December 2020 - Page 35


Page 35 of 39

How to cool more efficiently

Researchers from the University of Barcelona, HZDR, and TU Darmstadt investigate the effects of simultaneously exposing alloys to magnetic fields and mechanical stress. They found that certain materials can boost their cooling efficiency by up to doubling it with commercially available neodymium permanent magnets.

SourceHelmholtz-Zentrum Dresden-Rossendorf·JournalApplied Physics Reviews·DateDec 3, 2020

Can we improve our health with doses of safe, live microbes on a daily basis?

A group of seven interdisciplinary scientists published a review paper highlighting specific gaps in the research on live microbes and health outcomes. They argue that there is only weak evidence to date confirming the link between live microbes and better human health, and propose a plan for quantifying this relationship.

Outbreak investigation reveals "super-spreader" potential of Andes virus

A recent study published in The New England Journal of Medicine found that the Andes virus, carried by wild rodents, can cause severe respiratory disease in humans through extensive person-to-person contact. The outbreak in a small village in Argentina had the most extensive recorded human-to-human transmission of the virus to date.

SourceUS Army Medical Research Institute of Infectious Diseases·JournalNew England Journal of Medicine·DateDec 3, 2020

Blackcurrants are favorable for glucose metabolism

A new study from the University of Eastern Finland found that consuming blackcurrants after a meal can attenuate the rise and fall of blood glucose levels. The beneficial effect is attributed to berry-derived polyphenolic compounds, specifically anthocyanins, which slow down glucose absorption and reduce oxidative stress.

SourceUniversity of Eastern Finland·JournalBritish Journal Of Nutrition·DateDec 3, 2020

Adaptive Image Receive (AIR) coil from GE shows promise for whole-brain imaging

A prototype 16-channel head AIR coil from GE Healthcare has been shown to perform better than a conventional 8-channel head coil for in vivo whole-brain imaging, but not as well as a 32-channel coil. The coil's lightweight and flexible design exhibits improved electrical characteristics that could lead to future design improvements.

SourceAmerican Roentgen Ray Society·JournalAmerican Journal of Roentgenology·DateDec 3, 2020

How a police contact by middle school leads to different outcomes for Black, white youth

A new University of Washington study examines the effects of early police contacts on Black and white adolescents, finding that Black youth are more likely to be treated as 'usual suspects' after a first encounter, leading to subsequent arrests. White youth with early police contact are not significantly more likely to be arrested later.

SourceUniversity of Washington·JournalSocial Problems·DateDec 3, 2020

Chicago neighborhoods with barriers to social distancing had higher COVID-19 death rates

A new study found that Chicago neighborhoods with limited internet access and low health insurance coverage had higher COVID-19 death rates. Neighborhoods with high rates of COVID-19 mortality were often characterized by social vulnerability factors such as low educational attainment and high percentages of Hispanic/Latino residents.

SourceUniversity of Illinois Chicago·JournalAnnals of Epidemiology·DateDec 3, 2020

Electrical spin filtering the key to ultra-fast, energy-efficient spintronics

A UNSW study demonstrates all-electrical spin-to-charge conversion without magnetic field, enabling fast detection of spin accumulation in strongly spin-orbit coupled materials. The non-linear method facilitates orders of magnitude faster detection and time-resolved read-out down to 1 nanosecond resolution.

Cell membranes in super resolution

Scientists have created a method to expand lipids in cell membranes, enabling the imaging of proteins and organelles with unprecedented resolution. This breakthrough allows for detailed insights into bacterial infection mechanisms and potential therapeutic targets.

SourceUniversity of Würzburg·JournalNature Communications·DateDec 2, 2020

Oddly satisfying metamaterials store energy in their skin

Purdue University scientists have created a patterned sheet of domes that can store energy in its skin, enabling strong mechanical tasks and programmable data processing. The technology has potential applications in flexible robotics and mechanical computing, where energy storage and efficient processing are crucial.

SourcePurdue University·JournalAdvanced Science·DateDec 2, 2020

Discrimination on social media results in higher depression, anxiety among minority males

A study by Florida International University researchers found that young Hispanic males who experienced ethnic discrimination on social media had higher levels of depression and anxiety. The study's lead author noted that the impact may be due to increased exposure to discriminatory content specifically targeting men, threatening their...

SourceFlorida International University·JournalJournal of Clinical Psychology·DateDec 2, 2020

To increase organs available for transplant, reassess organ procurement organizations' metrics

Researchers analyzed national organ transplant data from 2008 to 2017 and found a wide variation in organ procurement organizations' efficiency. They proposed three new metrics that would give a more accurate and equitable representation of performance, highlighting the need for improved evaluation of the organ donation system.