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Science News Archive 2021 - Page 256


Page 256 of 510

How do immune cells get activated?

Researchers at Université de Genève and University of Basel study the structure of cellular receptors and molecules that activate immune cells. They discovered a 'lock and key' mechanism involving specific amino acids in chemokine structures, allowing for fine-tuning of immune system activation.

SourceUniversité de Genève·JournalScience Advances·DateJun 16, 2021

Space scientists solve a decades-long gamma-ray burst puzzle

A team of UK scientists has confirmed a decades-long theoretical prediction about gamma-ray bursts. They measured the magnetic field in a far-off Gamma-Ray Burst and found it was scrambled after the ejected material crashed into, and shocked, the surrounding medium. This discovery sheds new light on these extreme cosmic blasts.

SourceUniversity of Bath·JournalMonthly Notices of the Royal Astronomical Society·DateJun 16, 2021

What factors put Philippine birds at risk of extinction?

A new study from the University of Utah reveals that more bird species in the Philippines may be endangered than previously thought, including those yet to be discovered. The research identifies key traits that make certain species more at risk of extinction, such as narrow elevation ranges and dependence on forests.

SourceUniversity of Utah·JournalFrontiers in Ecology and the Environment·DateJun 16, 2021

EMBO Gold Medal 2021 awarded to Andrea Ablasser

Andrea Ablasser is awarded the EMBO Gold Medal 2021 for her groundbreaking research on how cells recognize double-stranded DNA as a danger signal. Her work may pave the way for therapeutic opportunities for inflammatory conditions and cancer treatment.

SourceEMBO·DateJun 15, 2021

New Web Tool Fights Antibacterial Resistance

A new web tool, webSalvador, offers more accurate methods for constructing confidence intervals and comparing mutation rates in bacteria mutation research. This tool eliminates the need for scientists to learn programming languages, increasing efficiency and efficacy of the Luria-Delbrück experiment.

How political bias impacts believing sexual assault victims

A study published in Violence Against Women found that political biases strongly influence attitudes towards sexual assault. Both Republicans and Democrats tend to blame victims more when strongly identifying with their party affiliation. The researchers also discovered that partisan identity often supersedes gender in shaping these at...

SourceSyracuse University·JournalViolence Against Women·DateJun 15, 2021

Malicious content exploits pathways between platforms to thrive online, subvert moderation

A new study by George Washington University researchers has mapped online hate clusters across six major social media platforms, revealing how malicious content exploits pathways between platforms to spread. The team suggests several strategies for social media companies to slow or block online hate content, including artificially leng...

SourceGeorge Washington University·JournalScientific Reports·DateJun 15, 2021

Those breakfast foods are fortified for a reason

A new study suggests that skipping breakfast leads to a nutritional gap, with adults who skip morning meals likely missing out on calcium, vitamin C, and fiber. The research analyzed data from over 30,000 American adults and found that those who skipped breakfast had lower intakes of essential nutrients for the entire day.

SourceOhio State University·JournalProceedings of The Nutrition Society·DateJun 15, 2021

Use of PFAS in cosmetics 'widespread,' new study finds

A new study from the University of Notre Dame reveals that many cosmetics sold in the US and Canada contain high levels of per- and polyfluoroalkyl substances (PFAS), linked to serious health conditions. The research found 56% of foundations and eye products, as well as lip products and mascaras, contained high fluorine levels.

SourceUniversity of Notre Dame·JournalEnvironmental Science & Technology Letters·DateJun 15, 2021