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Science News Archive 2021 - Page 402


Page 402 of 510

Race influences flood risk behaviors

A study by researchers at the University of Connecticut and others found that race and stream flow are significant indicators of flood risk behavior in US cities. The models showed two diverging patterns among metro areas, with 'risk-enduring' communities taking less action against flooding after a disaster.

SourceUniversity of Connecticut·JournalProceedings of the National Academy of Sciences·DateMar 15, 2021

A novel recipe for air-stable and highly-crystalline radical-based coordination polymer

Scientists from Japan's Institute for Molecular Science have created a new recipe for stable radical-based coordination polymers, which have potential applications in electronics and spintronics. The materials exhibit photoluminescence properties and can be produced using different metal ions or complexes.

SourceNational Institutes of Natural Sciences·JournalJournal of the American Chemical Society·DateMar 15, 2021

Telemedicine versus office-based follow-up after meniscal surgery: Trial shows 'equivalent' patient satisfaction scores

A randomized trial of telemedicine versus office-based follow-up after arthroscopic meniscal surgery found equivalent patient satisfaction scores between the two groups. Patients using telemedicine for postoperative follow-up had similar pain scores and complication rates as those making in-person visits.

SourceWolters Kluwer Health·JournalJournal of Bone and Joint Surgery·DateMar 15, 2021

Switching from TDF- to TAF-containing ART associated with the development of obesity in people living with HIV

A cohort study found that switching from TDF to TAF-containing ART was associated with significant weight increases, obesity, and rising blood lipid levels in people living with HIV. The study suggests individualized preference for TAF over TDF should be accompanied by repeated assessment of cardiometabolic risk factors.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateMar 15, 2021

Mitochondria found to be protected by ketogenesis

Researchers at Kumamoto University found that ketogenesis maintains mitochondrial function, preventing excessive acetylation and fatty liver development. This discovery may lead to future therapies for protecting mitochondria and organs in newborns and individuals with nutritional deficiencies.

SourceKumamoto University·JournalNature Metabolism·DateMar 15, 2021

Demonstration of the universal quantum error correcting code with superconducting qubits

Researchers at the University of Science and Technology of China and Tsinghua University successfully implement a five-qubit quantum error correcting code using superconducting qubits. They achieve high fidelity logical state preparation with an average value of 98.6%, verifying the viability of experimental realization of quantum erro...

SourceScience China Press·JournalNational Science Review·DateMar 15, 2021

How do good metals go bad?

Researchers found that exotic metallic materials exhibit poor electrical conductivity due to tiny amounts of impurities or defects. These defects cause electrons to remain localized, hindering current flow at low frequencies, but allowing it at high frequencies.

SourceVienna University of Technology·JournalNature Communications·DateMar 15, 2021

Ancient light illuminates matter that fuels galaxy formation

Researchers have made groundbreaking discoveries about the formation of galaxies and stars using data from the Atacama Cosmology Telescope. By analyzing microwave observations, they found that only a small percentage of gas in galaxies (about 10%) is turned into stars, shedding light on why galaxy formation remains inefficient.

SourceCornell University·JournalPhysical Review D·DateMar 15, 2021

Center-right MEPs less cohesive on votes about EU fundamental values during Fidesz era, study shows

Researchers found that Center-right MEPs became less cohesive in voting for resolutions protecting EU fundamental values between 2009 and 2019. The analysis shows a sharp increase in the tendency of EPP MEPs to support these resolutions over time, but during 2011-2019, they had below-average cohesion compared to others.

SourceUniversity of Exeter·JournalEuropean Political Science Review·DateMar 15, 2021

Cancer immunotherapy approach targets common genetic alteration

Researchers developed a new cancer immunotherapy that uses engineered T cells to target a genetic alteration common among all cancers. The approach stimulates an immune response against cells with the loss of one gene copy, called loss of heterozygosity (LOH), and has shown promising results in laboratory studies and mouse models.

SourceJohns Hopkins Medicine·JournalProceedings of the National Academy of Sciences·DateMar 15, 2021

Open door to treatment of renal fibrosis by showing that it is caused by telomere shortening

Renal fibrosis, a leading cause of kidney failure, has been linked to telomere shortening. Researchers found that short telomeres exacerbate epithelial-to-mesenchymal transition, promoting pathological scarring of kidney tissue. They propose treating renal fibrosis by lengthening telomeres and restoring normal gene expression.

Scientists stunned to discover plants beneath mile-deep Greenland ice

Researchers find fossilized plant structures at the bottom of a 4560-foot-deep ice core, indicating that most of Greenland was ice-free within the last million years. The discovery highlights the vulnerability of the Greenland ice sheet to climate warming and sea-level rise, posing a significant threat to coastal cities worldwide.

SourceUniversity of Vermont·JournalProceedings of the National Academy of Sciences·DateMar 15, 2021