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Science News Archive June 2020 - Page 44


Page 44 of 48

SPIE Journal of Applied Remote Sensing honors best papers

The journal's editorial board selected three papers for best paper awards, showcasing innovative work in interdisciplinary applications, theoretical innovation, and photo-optical instrumentation design. The honorees include a paper on deep-learning-based object detection for monitoring underwater ecosystems and marine debris.

SourceSPIE--International Society for Optics and Photonics·JournalJournal of Applied Remote Sensing·DateJun 2, 2020

On the hunt for megafauna in North America

Research from Curtin University analyzed ancient DNA to understand the causes of animal extinctions during the Ice Age. The study found that while plant diversity recovered as climate warmed, large animal diversity did not recover, suggesting human hunting was a major factor in megafauna extinction.

SourceCurtin University·JournalNature Communications·DateJun 2, 2020

Large simulation finds new origin of supermassive black holes

A new computer simulation theory suggests that supermassive black holes form from gas clouds enriched with heavy elements, explaining the large number observed in galaxies today. The simulations showed that a massive star can form 10,000 times more massive than the Sun, which will continue to grow and evolve into a giant black hole.

SourceNational Institutes of Natural Sciences·JournalMonthly Notices of the Royal Astronomical Society·DateJun 2, 2020

Astronomers capture a pulsar 'powering up'

Researchers observed an accreting neutron star entering an outburst phase, studying its structure and material movement. The observation revealed a 12-day process, contradicting previous theories of two- to three-day timescales.

SourceMonash University·JournalMonthly Notices of the Royal Astronomical Society·DateJun 2, 2020

Extraordinary modulation of light polarization with dark plasmons in magnetoplasmonic nanocavities

Scientists create magneto-plasmonic nanoantennas with hybrid high-order multi-polar dark modes, enabling unprecedented control of light polarization. The resulting amplification enhances the magneto-optical activity, overcoming previous limitations and opening new avenues for nanophotonic applications.

New technique takes 3D imaging an octave higher

Researchers developed a new 3D imaging technique called harmonic optical tomography, which uses holographic information to generate 3D images of biological samples. This technique has the potential to assist with cancer and disease diagnoses by providing critical information on tissue structure and collagen fiber orientation.

SourceColorado State University·JournalNature Photonics·DateJun 2, 2020

Immune cells multiply and diversify in mouse lungs at birth

A new study published in eLife finds that the number and types of immune cells in mouse lungs increase rapidly after birth, helping them adapt to breathing and protect against infections. This discovery may lead to new therapies to preserve or enhance lung development in infants and young children.

SourceeLife·DateJun 2, 2020

Behaviors and traits that influence social status, according to evolutionary psychologists

A study by evolutionary psychologists at the University of Texas at Austin identified universal qualities like intelligence, honesty, and bravery that increase a person's social value. The findings also revealed cultural differences in what influences social status, with certain traits being more valuable in some societies than others.

SourceUniversity of Texas at Austin·JournalJournal of Personality and Social Psychology·DateJun 2, 2020

A storage battery for the entire world

Researchers at the University of Freiburg are developing a new storage concept that balances power density with affordability, recyclability and ease of use. The 'Plug-In' project aims to create a scalable and intelligent battery system for decentralized electrification in rural areas.

Leaders call for 'Moonshot' on nutrition research

Nutrition experts urge a 'Moonshot' approach to strengthen federal nutrition research and policy, citing dire state of Americans' health and significant potential for new discoveries. The proposed strengthening of federal nutrition research aims to generate new discoveries to improve health, reduce healthcare costs and create jobs.

SourceAmerican Society for Nutrition·JournalAmerican Journal of Clinical Nutrition·DateJun 2, 2020

Stretchable variable color sheet that changes color with expansion and contraction

Researchers have created a variable color sheet using elastomer nanosheets that change color in response to strain, achieving reversible wavelength control of transmitted light. The developed sheets utilize surface plasmon to produce extraordinary optical transmission and can be used for flexible displays and sensors.

SourceToyohashi University of Technology (TUT)·JournalAdvanced Optical Materials·DateJun 2, 2020

Families and communities are central to the recovery of Sierra Leone's former child soldiers

Former child soldiers in Sierra Leone who were accepted by their families and communities experienced improved emotional and social well-being. The longitudinal study of over 500 former child soldiers found that stigma was a significant barrier to their recovery, with some experiencing anxiety, depression, and post-traumatic stress dis...

SourceElsevier·JournalJournal of the American Academy of Child & Adolescent Psychiatry·DateJun 2, 2020

Solar cells, phone displays and lighting could be transformed by nanocrystal assembly method

Researchers from the ARC Centre of Excellence in Exciton Science have developed a highly efficient and controllable method to assemble single nanoparticles directly into pre-patterned templates using electrophoretic deposition. The technique has been applied to various materials, including gold nanocrystals, semiconductor quantum dots,...

SourceARC Centre of Excellence in Exciton Science·JournalAdvanced Materials·DateJun 2, 2020