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Science News Archive November 2021 - Page 40


Page 40 of 40

What’s down there? WHOI study shows environmental DNA is a reliable way to learn about migration from the ocean twilight zone

Researchers found that changes in eDNA concentration accurately reflect movement of creatures between the twilight zone and surface. The study provides clues about species diversity, distribution, and migration patterns using genetic material shed by marine creatures.

SourceWoods Hole Oceanographic Institution·JournalScientific Reports·TypeComputational simulation/modeling·DateNov 1, 2021

Researchers identify ultrafast dynamics in monolayer MoS2/ReSe2 heterostructures

A team of researchers identified the ultrafast carrier dynamics in monolayer MoS2/ReSe2 heterostructures, revealing relaxation pathways and intermediate processes. The study provides comprehensive insight into photocarrier dynamics across charge separation, enabling the development of optoelectronic devices.

SourceHefei Institutes of Physical Science, Chinese Academy of Sciences·JournalACS Nano·TypeExperimental study·DateNov 1, 2021

A life less obvious: Study sheds light on the evolution of underground microbes

A new study reveals that many cratons were uninhabitable for microbes for much of their existence, with the longest period of habitability not much beyond a billion years. The deep biosphere, home to microbial life, has evolved over geologic history, and modern microbes are related to ancient ancestors in the subsurface.

SourceUniversity of Arizona·JournalProceedings of the National Academy of Sciences·TypeSystematic review·DateNov 1, 2021

A superconducting silicon-photonic chip for quantum communication

Researchers have developed a superconducting silicon-photonic chip for quantum communication, enabling optimal Bell-state measurement of time-bin encoded qubits. This breakthrough enhances the key rate of secure quantum communication and removes detector side-channel attacks, significantly increasing security.

SourceSPIE--International Society for Optics and Photonics·JournalAdvanced Photonics·TypeExperimental study·DateNov 1, 2021

Pandemic solitude was positive experience for many

A study of over 2000 participants found that time spent alone during the pandemic led to improved well-being scores, with 43% describing activities as a source of competence. Adults experienced disrupted well-being and negative mood less frequently than teenagers, highlighting the importance of solitude for mental health.

SourceUniversity of Reading·JournalFrontiers in Psychology·TypeData/statistical analysis·DateNov 1, 2021

How bread wheat got its gluten: Tracing the impact of a long-lost relative on modern bread wheat

Researchers sequenced DNA from 242 accessions of Aegilops tauschii, a wild relative of bread wheat, and discovered a distinct lineage that contributed to the modern wheat genome. This ancient contribution has provided valuable genetic diversity for improving disease resistance, yield, and environmental resilience in modern wheat.

SourceJohn Innes Centre·JournalNature Biotechnology·TypeExperimental study·DateNov 1, 2021

Lung model proves viability of spectroscopy technique

A lung model mimicking complex anatomy has enabled the assessment of respiratory volumes using a gas-in-scattering-media absorption spectroscopy (GASMAS) technique. The study demonstrates the feasibility of GASMAS to sense changes in gas volume in a controlled environment, paving the way for potential clinical applications.

SourceSPIE--International Society for Optics and Photonics·JournalJournal of Biomedical Optics·TypeExperimental study·DateNov 1, 2021