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Science News Archive May 2021 - Page 42


Page 42 of 47

New method identifies tau aggregates occurring in healthy body structures

Researchers developed a method to visualize small tau protein aggregates forming under normal physiology, distinguishing them from pathological aggregates. The new approach uses high-resolution microscopy and machine learning to identify healthy tau aggregates, offering potential for new treatments for neurological diseases.

SourceUniversity of Pennsylvania School of Medicine·JournalProceedings of the National Academy of Sciences·DateMay 5, 2021

Is PTSD overdiagnosed?

Experts argue that PTSD is often conflated with normal responses to stress, leading to increased pressure on services. However, another study suggests that PTSD may be underdiagnosed, with only a small proportion of those seeking help receiving a diagnosis.

SourceBMJ Group·JournalThe BMJ·DateMay 5, 2021

High school student's study models droplet spread

A high school student's study models the spread of macroscopic droplets from a simulated cough with and without mask use. The findings suggest that barriers can play a crucial role in controlling droplet spread, especially when masks cannot be worn.

SourcePLOS·JournalPLOS ONE·DateMay 5, 2021

When algorithms go bad: How consumers respond

A new study finds that consumers penalize brands less when an algorithm causes a brand harm crisis, as perceived agency and responsibility for the error mediate their responses. Marketers should deploy and monitor algorithms with heightened vigilance and provide technological supervision to reduce negative consumer responses.

SourceAmerican Marketing Association·JournalJournal of Marketing·DateMay 5, 2021

Mysterious hydrogen-free supernova sheds light on stars' violent death throes

Astronomers have discovered a mysterious yellow star that exploded without the typical hydrogen layer, revealing new insights into the violent death throes of massive stars. The discovery challenges current understanding of stellar evolution and suggests that these stars may undergo catastrophic eruptions before exploding.

SourceRoyal Astronomical Society·JournalMonthly Notices of the Royal Astronomical Society·DateMay 5, 2021

Now available with a negative charge too

Researchers have introduced a new anionic organoborane compound, borafluorene, which is a system of three carbon rings joined at the edges with a boron atom. The team used carbenes to stabilize the elusive anions and demonstrated their potential as chemical building blocks.

SourceWiley·JournalAngewandte Chemie International Edition·DateMay 5, 2021

Do bacteria in the mouth affect risk of developing rheumatoid arthritis?

Researchers discovered a possible link between oral microbes and rheumatoid arthritis, finding similar bacterial compositions in patients' mouths as those at risk of developing the disease. The study suggests that potentially pro-inflammatory bacteria, such as Prevotella and Veillonella, may play a role in the disease

SourceWiley·JournalArthritis & Rheumatology·DateMay 5, 2021

Expanded contraception access led to higher graduation rates for young women in Colorado

A study found that increased access to birth control in Colorado led to a 1.66 percentage-point increase in high school graduation among young women one year after the initiative was introduced. The research provides evidence for the U.S. Title X program's goal of ensuring low-income and uninsured residents can complete their education.

Greater access to birth control leads to higher graduation rates

A new study published in Science Advances found that increased access to birth control in Colorado led to a 14% decrease in the percentage of young women who left high school before graduating. The program, which expanded access to more forms of contraception, also showed improvements in graduation rates among Hispanic women.

SourceUniversity of Colorado at Boulder·JournalJournal of Mathematical Sciences Advances and Applications·DateMay 5, 2021

Bees thrive where it's hot and dry: A unique biodiversity hotspot located in North America

A recent study found that more than 470 bee species inhabit a 16 km2 area of protected Chihuahuan Desert, representing 14% of the known United States bee fauna. This biodiversity hotspot provides valuable insights into native bee diversity and highlights the need for baseline information to assess human impact on bee faunas.

SourcePensoft Publishers·JournalJournal of Hymenoptera Research·DateMay 5, 2021

Countries denied access to medicines and vaccines they help develop

A Yale-led study found that new medicines and vaccines approved for use in the US are often not accessible in countries where they were developed, highlighting gaps in access to new medications. The study suggests that governments of host countries should require pharmaceutical companies to commit to submitting marketing approval appli...

SourceYale University·JournalJAMA Network Open·DateMay 5, 2021

SMART evaluates impact of competition between autonomous vehicles and public transit

A Singapore-based study found that competition between autonomous mobility services and public transit can lead to increased profits, system efficiency, and benefits for the public. However, it may also result in uneven social costs, such as higher travel costs or longer travel times, especially for vulnerable groups.