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Science News Archive May 2021 - Page 8


Page 8 of 47

Hundreds of antibiotic resistant genes found in the gastrointestinal tracts of Danish infants

A new study from the University of Copenhagen reveals that Danish one-year-olds carry several hundred antibiotic resistant genes in their bacterial gut flora. The presence of these genes is partly attributable to antibiotic use among mothers during pregnancy, and well-developed gut flora may reduce the incidence of resistant bacteria.

Study of promising photovoltaic material leads to discovery of a new state of matter

Researchers at McGill University have gained new insight into the workings of perovskites, a semiconductor material that shows great promise for making high-efficiency, low-cost solar cells. They discovered a phenomenon known as quantum confinement occurs within bulk perovskite crystals, leading to the formation of 'quantum drops', whi...

SourceMcGill University·JournalPhysical Review Research·DateMay 26, 2021

Otago study aids understanding of invisible but mighty particles

Tiny charged electrons and protons have been studied by University of Otago scientists in a Geophysical Research Letters publication. By analyzing data from GPS satellites, the researchers found that EMIC waves can cause changes in the number of particles in Earth's radiation belts, affecting satellite orbits and atmospheric chemistry.

SourceUniversity of Otago·JournalGeophysical Research Letters·DateMay 26, 2021

Resetting the biological clock by flipping a switch

Researchers from the University of Groningen and Nagoya University developed a compound that can elongate the 24-hour cycle and be activated or deactivated using light. The study shows that it is possible to change the 24-hour cycle in cells or tissues to a 28-hour cycle, providing a new approach to analyzing the circadian clock system.

SourceUniversity of Groningen·JournalNature Communications·DateMay 26, 2021

Is deference to supernatural beings present in infancy?

Researchers at the University of Oxford discovered that infants aged 12-16 months exhibit a tendency to attribute social dominance to individuals with supernatural powers. In experiments, infants expected characters using counterintuitive methods to win rewards, suggesting they perceive these abilities as superior.

SourceUniversity of Oxford·JournalScientific Reports·DateMay 25, 2021

Geology helps map kidney stone formation from tiny to troublesome

Researchers map kidney stone formation from tiny to troublesome, revealing microspherules merge to form larger crystals, and stones undergo multiple cycles of partial dissolution and growth. The new classification scheme and GeoBioCell device aim to accelerate research, diagnostic testing, and individualized treatment targets.

Made in the shade or fun in the sun

Phytochromes help plants detect light direction, intensity, and duration, as well as temperature, allowing them to adapt to various environments. The study fully characterized the phytochrome family in Arabidopsis thaliana and found surprising differences between isoforms.

SourceWashington University in St. Louis·JournalProceedings of the National Academy of Sciences·DateMay 25, 2021