Wednesday, August 12, 2020

science news 12.8.2020

Today's selection of science news. Links are normally to press releases on EurekAlert (at the bottom end I may also add a couple of newspaper stories). I include quotes from the summary in italics in cases where the title alone doesn't reveal what the story is about. My own thoughts appear without italics if I have any.


evolution

New species of dinosaur discovered on Isle of Wight
A new study by Palaeontologists at the University of Southampton suggests four bones recently found on the Isle of Wight belong to new species of theropod dinosaur, the group that includes Tyrannosaurus rex and modern-day birds.

Primate voice boxes are evolving at rapid pace


Gorilla skull and larynx
Credit: Copyright Dr Jacob Dunn, Anglia Ruskin University (ARU)


nanoworld

For bacteria, a small genome means some serious decluttering -- even in the ribosome
Researchers have studied the genomes of some 200 strains of bacteria to determine which proteins in the ribosome, part of the key cell machinery, can be safely lost and why. Research showed that frequently lost ribosomal proteins tend to be placed on the ribosome surface, where they usually have fewer contacts to other ribosome components. Yet since ribosomal proteins are in the cell's essential toolkit, they are generally among the last to leave a 'downsizing' bacterial genome.
Funny though that in mitochondria we see the opposite - new proteins being added to a ribosome that has become virtually useless, producing fewer proteins than it needs for its own assembly. See my recent feature here.


biomedical

Malaria discovery could expedite antiviral treatment for COVID-19
New research into malaria suggests targeting enzymes from the human host, rather than from the pathogen itself, could offer effective treatment for a range of infectious diseases, including COVID-19.

COVID-19: Herd immunity in Sweden fails to materialize


food and drink

Gluten in wheat: What has changed during 120 years of breeding?
spoiler: authors find no evidence that breeding has caused rise in gluten sensitivity problems.


humans

What violin synchronization can teach us about better networking in complex times


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From the news media:

Underneath its skin, dwarf planet Ceres is an ocean world
, according to the Dawn results reported in the Guardian.

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