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Science News Archive 2020 - Page 482


Page 482 of 512

An egg a day not tied to risk of heart disease

A large multinational study found no harm from consuming eggs, with moderate intake (one egg per day) not increasing the risk of cardiovascular disease or mortality. The study analyzed data from 146,011 individuals across 21 countries and found no association between egg consumption and blood cholesterol levels.

SourceMcMaster University·JournalAmerican Journal of Clinical Nutrition·DateJan 27, 2020

The Lancet Planetary Health: Discriminatory redlining practices in the 1930s associated with present-day rates of emergency department visits due to asthma

Redlining practices in the 1930s are associated with higher rates of emergency department visits due to asthma, with a 39% increased risk in previously redlined neighbourhoods compared to non-redlined areas. Historical policies may have shaped neighbourhood development and air quality, contributing to asthma incidence.

SourceThe Lancet·JournalThe Lancet Planetary Health·DateJan 27, 2020

Kiss and run: How cells sort and recycle their components

Researchers at the University of Basel have discovered a cellular machine called FERARI that sorts out reusable proteins for recycling, introducing a new 'kiss-and-run' mechanism. This process saves energy and time by reusing valuable cell components, potentially mitigating diseases associated with disrupted recycling processes.

SourceUniversity of Basel·JournalNature Cell Biology·DateJan 27, 2020

Switching grape varieties can help save world's wine-growing regions: UBC study

A new UBC study finds that swapping out grapes for more drought and heat-tolerant varieties can ease the transition to a warmer world, with up to 51% of current winegrowing regions potentially lost to climate change. Diversification may limit losses to 24%, with specific regions like Burgundy and Bordeaux adapting to new varieties.

SourceUniversity of British Columbia·JournalProceedings of the National Academy of Sciences·DateJan 27, 2020

Seismic biomarkers in Japan Trench fault zone reveal history of large earthquakes

Researchers found multiple faults with evidence of over 10 meters of slip during past large earthquakes in the Japan Trench fault zone, revealing a complex history of seismic activity. The technique used to analyze organic molecules in sedimentary rocks provides new insights into the likelihood of future tsunamis and earthquake hazards.

SourceUniversity of California - Santa Cruz·JournalNature Communications·DateJan 27, 2020

Superfast insights into cellular events

Researchers at Goethe University have developed a new NMR method that allows them to follow tiny structural changes in RNA chains in real-time. This breakthrough enables the study of RNA refolding and its role in regulating transcription processes, which are crucial for cellular functions.

SourceGoethe University Frankfurt·JournalProceedings of the National Academy of Sciences·DateJan 27, 2020

Unmet need for physicians, services among US adults

A 20-year study found that insured US adults faced worsening access to healthcare due to cost constraints, with increases in unmet needs for physician visits and services. Meanwhile, some preventive services showed improvements, such as increased guideline-recommended cholesterol tests and flu shots.

SourceJAMA Network·JournalJAMA Internal Medicine·DateJan 27, 2020

Study of Amazon forest carbon reveals indigenous territories, protected areas under siege, yet remain best climate solution

A new study suggests that Indigenous territories and protected areas in the Amazon are emitting low amounts of carbon, outperforming other land categories. However, these lands are under siege due to government concessions for mining and petroleum extraction, threatening their role in protecting vulnerable landscapes.

SourceBurness·JournalProceedings of the National Academy of Sciences·DateJan 27, 2020

Prairie plants need fiery romance

Researchers found that prescribed fires are critical for successful reproduction in prairie plants, causing synchronized flowering which increases mating opportunities and seed production. The study observed the sex lives of individual plants for 21 years and found nearly doubled annual seed production after a prescribed burn.

SourceNorthwestern University·JournalProceedings of the National Academy of Sciences·DateJan 27, 2020

Driven by Earth's orbit, climate changes in Africa may have aided human migration

A recent study suggests that climate changes in Africa, driven by Earth's orbit and vegetation patterns, may have provided resource gradients for humans, driving migration outward to areas with more water and plant life. The model showed large increases in rainfall and vegetation at specific time periods, potentially creating advantage...

SourceUniversity of Wisconsin-Madison·JournalProceedings of the National Academy of Sciences·DateJan 27, 2020