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Science News Archive 2020 - Page 84


Page 84 of 512

Asteroid Ryugu shaken by Hayabusa2's impactor

The Hayabusa2 mission's artificial impact crater on asteroid Ryugu revealed significant boulder movements and seismic shaking, up to 40m from the center. The study provides valuable insights into asteroids' resurfacing processes and can be used as a benchmark for numerical simulations.

Brainstem neurons control both behaviour and misbehaviour

A recent study at the University of Helsinki found that brainstem neurons play a crucial role in controlling both normal behaviour and misbehaviour in mice. The researchers discovered that faulty gene regulation can lead to behavioural abnormalities such as hyperactivity and attention deficit. The study provides new insights into the d...

SourceUniversity of Helsinki·JournalCell Reports·DateOct 29, 2020

Touch and taste? It's all in the tentacles

Researchers at Harvard University discovered a unique sensor system in octopus suction cups that allows them to detect and 'taste' molecules on objects, enabling the animals to identify prey. This novel chemotactile receptor system may also facilitate complex behaviors in octopuses and other cephalopods.

SourceHarvard University·JournalCell·DateOct 29, 2020

Flash graphene rocks strategy for plastic waste

Researchers at Rice University have created a new method to convert plastic waste into high-quality graphene, offering a potential solution to the global plastic waste crisis. The flash graphene process eliminates much of the expense associated with recycling plastic, making it an economically viable alternative.

SourceRice University·JournalACS Nano·DateOct 29, 2020

ICE detention centers saw sustained outbreaks of vaccine-preventable diseases, says study

A study by University of California - San Francisco researchers found that over a three-year period, more than a dozen ICE detention centers experienced large, repeated outbreaks of vaccine-preventable illnesses, including influenza, chickenpox, and mumps. The Centers reported nearly half of the infections occurred in two facilities.

Cancer-fighting gene restrains 'jumping genes'

Scientists have discovered a new role for the cancer-fighting gene p53 in preventing retrotransposons from hopping around the human genome, potentially leading to new ways of detecting or treating cancers. The study found that cells without functional p53 had higher rates of retrotransposon movement and multiplication.

SourceUT Southwestern Medical Center·JournalGenes & Development·DateOct 29, 2020

Towards next-generation molecule-based magnets

Researchers have developed a lightweight molecule-based magnet with unprecedented magnetic properties, exhibiting a 'memory effect' at elevated temperatures. The compound contains abundant metal chromium and inexpensive organic molecules, making it a promising alternative to current inorganic commercial magnets.

SourceCNRS·JournalScience·DateOct 29, 2020

Drones as stinger spotters

Researchers used lower-cost domestic drones to detect Chironex fleckeri jellyfish in waters off northern Australia. The drones achieved significantly high detection rates, even under varying weather conditions. This innovative approach aims to improve beach safety and reduce the risk of jellyfish stings.

SourceJames Cook University·JournalPLOS ONE·DateOct 29, 2020

Corporations directing our attention online more than we realize

A new study by University of Illinois researchers Harsh Taneja and Angela Xiao Wu found that corporations use 'nudging' techniques to influence online attention, often in hidden ways. The researchers analyzed clickstream data from a million people and identified common clusters of websites that reflect corporate ownership, partnerships...

These spiders can hear

Researchers discovered that ogre-faced spiders can detect both low- and high-frequency sounds using hairs and joint receptors on their legs. The spiders use these sensory systems to hunt flying insects by performing a choreographed backwards strike, which may be aided by directional hearing.

SourceCell Press·JournalCurrent Biology·DateOct 29, 2020

Unravelling the origins of autoimmune psychosis

A new study by University of Barcelona reveals that alterations in dopaminergic receptors D1R and D2R in the hippocampal area of the brain cause memory deficits and psychotic behaviour in mice with anti-NMDAR encephalitis. The findings hold promise for developing more efficient antipsychotic drugs.

SourceUniversity of Barcelona·JournalAnnals of Neurology·DateOct 29, 2020