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Science News Archive May 2021 - Page 5


Page 5 of 47

Poor sleep may impact academic achievement for children in disinvested neighborhoods

A new longitudinal study found that sleep health is related to observed classroom behavior and predicts future academic achievement among primarily Black children growing up in historically disinvested neighborhoods. Higher teacher-reported child sleepiness was associated with lower adaptive behaviors and higher behavior problems.

SourceSociety for Research in Child Development·JournalChild Development·DateMay 27, 2021

It takes some heat to form ice!

Researchers track water molecule movement using Helium Spin-Echo technique, revealing repulsion between water molecules on graphene surface is crucial for ice formation. This discovery challenges previous understanding of ice nucleation and provides new insights into controlling ice formation.

SourceGraz University of Technology·JournalNature Communications·DateMay 27, 2021

Dark energy survey releases most precise look at the universe's evolution

The Dark Energy Survey has released its most precise look at the universe's evolution, using data from 226 million galaxies observed over nearly one-eighth of the sky. The results confirm the current best model of the Universe, but hint that the Universe today is a few percent less clumpy than predicted.

SourceAssociation of Universities for Research in Astronomy (AURA)·JournalMonthly Notices of the Royal Astronomical Society·DateMay 27, 2021

Mathematical model developed to prevent botulism

A new mathematical model predicts Clostridium botulinum growth and toxin production in chilled food products, reducing the need for costly laboratory experiments. The model's comprehensive approach considers multiple factors, including storage temperature, pH, salt, and preservatives, to ensure food safety.

SourceTechnical University of Denmark·JournalInternational Journal of Food Microbiology·DateMay 27, 2021

DNA vaccines for COVID-19 effective in mice, hamsters

Researchers developed a DNA vaccine encoding SARS-CoV-2 spike protein, which induced long-lasting antibodies in mice and hamsters. The vaccine showed protective efficacy against COVID-19 infection in hamsters, with no loss of body weight or viral RNA in their lungs.

SourcePLOS·JournalPLOS Neglected Tropical Diseases·DateMay 27, 2021

A deep dive into the brain

Researchers have developed a new fluorescence microscopy technique that allows for high-resolution images of microcirculation in the brain without invasive surgical methods. This breakthrough has the potential to reveal new insights into neurological disorders and facilitate early detection and treatment.

SourceETH Zurich·JournalOptica·DateMay 27, 2021

Visits to 'crisis pregnancy centers' common in Ohio

A new study found that nearly one in seven Ohio women of reproductive age has visited a crisis pregnancy center, which are often funded by state dollars but not regulated by the medical board. This can lead to concerns about access to proper medical care and potential misinformation about reproductive health.

SourceOhio State University·JournalContraception·DateMay 27, 2021

Resilience of fisheries following Tohoku tsunami

A small Japanese fishing community recovered from the 2011 Tohoku tsunami through cooperative activity, including joint operations and fixed-net fishing. This phenomenon challenges the 'disaster utopia' concept, which suggests temporary collaborative behavior after emergencies.

SourceTohoku University·JournalDisaster Prevention and Management An International Journal·DateMay 27, 2021

UMass Amherst astronomer reveals never-before-seen detail of the center of our galaxy

Researchers have made a groundbreaking discovery at the center of our galaxy, revealing an X-ray thread and hinting at a previously unknown interstellar energy source. The findings provide the clearest picture yet of a pair of X-ray-emitting plumes emerging from the region near the massive black hole.

SourceUniversity of Massachusetts Amherst·JournalMonthly Notices of the Royal Astronomical Society·DateMay 27, 2021

Parents modify the home literacy environment according to their children's progress in learning to read

A longitudinal study found that parents modify their home literacy environment according to their children's progress in learning to read. Access to literacy resources was a consistent predictor of emergent literacy over time. Parents also adjusted their reading comprehension activities with their children as they encountered reading d...

SourceSociety for Research in Child Development·JournalChild Development·DateMay 27, 2021

Reaping the benefits of noise

Researchers at AMOLF discovered that introducing slow non-linearity can increase the efficiency of mechanical oscillators harvesting energy from noise. This phenomenon, known as stochastic resonance, becomes robust to variations in signal frequency when systems have memory.

SourceAMOLF·JournalPhysical Review Letters·DateMay 27, 2021

Lead levels in urban soil are declining but hotspots persist

A Duke University study found that while lead levels have generally decreased since the 1970s, they remain above safety guidelines near residential foundations and in areas with high traffic density. Regular soil testing is essential to mitigate these risks and encourage cities to act on this issue.

SourceDuke University·JournalEnvironmental Science & Technology·DateMay 27, 2021

New framework to enhance national climate action and achieve global goals

IIASA researchers have proposed a novel systematic scenario framework to help policymakers assess and compare climate policies across countries. The framework allows for exploration of multiple systematic scenarios associated with emissions reductions in 2050, providing a flexible approach to assessing national long-term pathways.

Immunity boost in the gut

A comprehensive review suggests that gut microbiota play a crucial role in immune responses to vaccinations. The study aims to improve vaccine effectiveness by understanding the microbiota's impact on B and T cell immune responses.

SourceFlinders University·JournalNature Reviews Immunology·DateMay 27, 2021

Prenatal exposure to paracetamol associated with ADHD and autism symptoms in childhood

A study of over 70,000 European children found that prenatal exposure to paracetamol was associated with a 19% increased risk of developing autism spectrum symptoms and a 21% increased risk of developing attention-deficit/hyperactivity symptoms. The researchers also found no association between postnatal paracetamol exposure and the de...

SourceBarcelona Institute for Global Health (ISGlobal)·JournalEuropean Journal of Epidemiology·DateMay 27, 2021