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Science News Archive March 2020 - Page 4


Page 4 of 41

Sturgeon genome sequenced

Scientists from University of Würzburg successfully sequenced sturgeon genome, showing genetic material has changed little over 250 million years. The study sheds light on the ancestry of vertebrates and provides important insights for protecting species.

SourceUniversity of Würzburg·JournalNature Ecology & Evolution·DateMar 30, 2020

Unique structural fluctuations at ice surface promote autoionization of water molecules

Scientists have found that hydrate protons on the ice surface are generated through autoionization of water molecules, leading to a significant enhancement in proton activity. This discovery has implications for understanding various phenomena such as charge generation and ozone layer destruction.

SourceNational Institutes of Natural Sciences·JournalThe Journal of Physical Chemistry Letters·DateMar 30, 2020

Carbon content of Earth's core

Researchers estimate Earth's core is composed of approximately 80-90% of the planet's bulk carbon, with a tiny fraction present in the core itself. The study measured the preference of carbon for mixing with iron and nickel at high pressures and temperatures, revealing a significantly lower affinity than previously reported.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateMar 30, 2020

A new tool for controlling reactions in microrobots and microreactors

Researchers at UMass Amherst have developed a new tool for controlling reactions in microrobots and microreactors, leveraging capillary forces to create self-assembling hanging droplets of aqueous polymer solutions. This technique enables selective transport of chemicals and can be used as encapsulated reaction vessels.

SourceUniversity of Massachusetts Amherst·JournalProceedings of the National Academy of Sciences·DateMar 30, 2020

New metabolism discovered in bacteria

Researchers at Goethe University discover a unique metabolism in Acetobacterium woodii that enables the bacterium to recycle hydrogen, allowing it to survive in oxygen-poor environments. This discovery has implications for our understanding of ancient life forms and their metabolic capabilities.

SourceGoethe University Frankfurt·JournalThe ISME Journal·DateMar 30, 2020

Projecting the outcomes of people's lives with AI isn't so simple

A collaborative study using machine learning techniques to predict six life outcomes for children, parents, and households found that even with high-quality data and state-of-the-art modeling, the predictive models were not very accurate. The study suggests that sociologists and data scientists should use caution in predictive modeling...

SourcePrinceton School of Public and International Affairs·JournalProceedings of the National Academy of Sciences·DateMar 30, 2020

Moffitt identifies novel therapeutic targets in cutaneous squamous cell carcinoma

Researchers at Moffitt Cancer Center identified potential therapeutic targets for cutaneous squamous cell carcinoma by studying the activity of protein TAp63 and microRNAs. The study found that miR-30c-2* and miR-497, which are normally expressed in normal skin, are underexpressed in cuSCC tumors and inhibit growth when reintroduced.

Calibrating tree-ring timelines

A study employing two approaches has accurately dated a collection of wooden timbers from the East Mediterranean using radiocarbon measurements and tree-ring associations. This precise chronology can support archaeological records and provide valuable insights into climate fluctuations during the Bronze and Iron Ages.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateMar 30, 2020