Add BrightSurf on Google Email

Science News Archive 2021 - Page 385


Page 385 of 510

Aerosol formation in clouds

Researchers at the Paul Scherrer Institute have found that isoprene, a dominant non-methane organic compound emitted into the atmosphere, can form up to 20% of secondary organic aerosols in clouds. This process affects Earth's radiation balance and climate change.

SourcePaul Scherrer Institute·JournalScience Advances·DateMar 24, 2021

Exploiting cancer cells to aid in their own destruction

Researchers at the University of Chicago developed a new therapeutic vaccine that uses a patient's own tumor cells to train their immune system to find and kill cancer. The vaccine stopped melanoma tumor growth in mouse models and promoted a broad, robust immune response, preventing new tumor growth when tumor cells were re-introduced.

SourceUniversity of Chicago·JournalScience Advances·DateMar 24, 2021

Bronze Age mining sites received deliveries of pre-processed foods

Cereal plant remains from Prigglitz-Gasteil show signs of processing off-site, suggesting specialized communities relied on external food sources. This discovery adds to the discussion on Bronze Age mining sites' dietary patterns and highlights the importance of processed foods in sustaining these communities.

SourcePLOS·JournalPLOS ONE·DateMar 24, 2021

New sequencing approach finds triple-negative breast cancers continue accumulating genetic changes during tumor growth

A novel method for single-cell DNA sequencing has enabled faster and deeper study of chromosome evolution in triple-negative breast cancers. The technique revealed that these cancers undergo continued genetic copy number changes after an initial burst of chromosomal instability, which may explain why treatments are not always effective.

Study shows DHA supplement may offset impact of maternal stress on unborn males

A recent study published in Biology of Sex Differences suggests that DHA supplementation during periods of high stress may reverse the negative impact of maternal stress on unborn males. Researchers found that exposure to prenatal distress decreased placenta and embryo weight in males but not females, while DHA groups showed a reversal...

SourceUniversity of Missouri-Columbia·JournalBiology of Sex Differences·DateMar 24, 2021

Snapshot of COVID-19 vaccine intentions highlights challenges of achieving community immunity goals

A recent study found that about half of Americans intend to get vaccinated as soon as possible, while others are hesitant or unlikely to get vaccinated. The survey highlights the need for targeted outreach to address vaccine hesitancy and build trust with communities, particularly among African American and Hispanic respondents.

Recharge your batteries

University of Utah professor Tao Gao's discovery reveals physics behind lithium plating and enables prediction of its occurrence. The breakthrough could lead to faster charging times for electric vehicles and smartphones, reducing charging time from over an hour to under 10 minutes.

SourceUniversity of Utah·JournalJoule·DateMar 24, 2021

Waste from making purple corn chips yields a natural dye, supplements, kitty litter

A new biorefinery method extracts beneficial pigments from purple corncobs, producing natural dyes, nutraceutical supplements and absorbent kitty litter, offering a sustainable solution with zero waste at the end. The process uses water as an eco-friendly agent and achieves higher pigment extraction rates compared to traditional solvents.

SourceAmerican Chemical Society·JournalACS Sustainable Chemistry & Engineering·DateMar 24, 2021