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Science News Archive November 2024 - Page 32


Page 32 of 44

Swirling polar vortices likely exist on the Sun, new research finds

Model simulations reveal a unique pattern of polar vortices that evolves with the solar cycle, shedding light on the Sun's magnetism and potential space weather disruptions. The findings imply that future missions to the Sun may observe these vortices during certain phases of the solar cycle.

SourceNational Center for Atmospheric Research/University Corporation for Atmospheric Research·JournalProceedings of the National Academy of Sciences·TypeComputational simulation/modeling·DateNov 11, 2024

Two hundred times better catalysts thanks to carbon

Scientists have discovered that adding carbon to metal nanoparticles makes them 200 times more active, which could lead to significant cost savings and improved efficiency in industrial processes. The discovery was made possible by precise measurements and simulations of the interaction between metal nanoparticles and a carbon substrate.

SourceVienna University of Technology·JournalACS Catalysis·TypeExperimental study·DateNov 11, 2024

Who moved my atom?

Scientists at the Technion Faculty of Physics successfully transferred atoms through quantum tunneling between optical tweezers, showcasing a promising method for quantum platforms. The experiment, led by Prof. Yoav Sagi and doctoral student Yanay Florshaim, controlled the transfer rate using dynamic manipulation of the tweezers.

SourceTechnion-Israel Institute of Technology·JournalScience Advances·TypeExperimental study·DateNov 11, 2024

A KAIST research team successfully produces microbial plastic to replace pet bottles​

A KAIST research team has successfully produced a microbial-based plastic that is biodegradable and can replace existing PET bottles. The team used metabolic engineering to develop a microbial strain that efficiently produces pseudoaromatic dicarboxylic acids, which are better suited for producing polymers than traditional methods.

SourceThe Korea Advanced Institute of Science and Technology (KAIST)·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateNov 11, 2024

50 years of survey data confirm African elephant decline

Large-scale declines in African elephant populations have been confirmed over 53 years of survey data. Forest elephant populations decreased by 90%, while savanna elephant populations fell by 70%. The study, published in Proceedings of the National Academy of Sciences, provides a comprehensive assessment of African elephants and highli...

SourceColorado State University·JournalProceedings of the National Academy of Sciences·DateNov 11, 2024

While more is better, even moderate amounts of exercise may reduce risk for common heart condition

A new study found that even moderate amounts of exercise can reduce the risk of atrial fibrillation, a common heart condition. The research, led by NYU Langone Health, used data from over 6,000 participants and showed that those with higher physical activity levels had a lower risk of developing the condition.

Additive manufacturing of multiscale NiFeMn multi-principal element alloys

Scientists have successfully synthesized a multiscale NiFeMn alloy through additive manufacturing combined with chemical dealloying, offering a new route for discovering novel materials. The integrated approach enables efficient diffusion of metals, allowing for bulk samples to be prepared without extended dealloying time.

SourceSongshan Lake Materials Laboratory·JournalMaterials Futures·TypeExperimental study·DateNov 11, 2024

Fighting microplastics for a cleaner future

Researchers at Texas A&M University have developed a method to break down condensation polymers in plastics using solvents and liquid organic hydrogen carriers, producing aromatic compounds that can be used as fuels. This breakthrough has potential implications for the sustainability of the chemical industry and reducing global warming.

SourceTexas A&M University·JournalAngewandte Chemie International Edition·DateNov 11, 2024

Navigating bias in AI-driven cancer detection

AI models trained on limited data may misdiagnose certain populations, particularly those in underserved communities. Researchers propose six key strategies to develop fair AI models, including using diverse datasets and transparent decision-making processes.

SourceImpact Journals LLC·JournalOncotarget·TypeCommentary/editorial·DateNov 11, 2024

AI-based software 'guide' childbirth by ‘seeing’ the baby’s position in real time

A new AI-based software developed to guide childbirth has been validated in a multicenter study using 2,154 ultrasound images from 16 centers worldwide. The tool provides precise, real-time information on the baby's head position, indicating whether to proceed with a natural descent or use a vacuum extractor.

SourceUniversita Cattolica del Sacro Cuore·JournalEuropean Journal of Obstetrics & Gynecology and Reproductive Biology·TypeExperimental study·DateNov 11, 2024

The imbalance of homeostasis in neutrophil extracellular traps is associated with portal vein thrombosis in patients with decompensated cirrhosis

Researchers found that imbalances in neutrophil extracellular traps are associated with portal vein thrombosis in patients with decompensated cirrhosis. High histone-DNA levels and low DNase activity were identified as independent risk factors for PVT.

SourceXia & He Publishing Inc.·JournalJournal of Clinical and Translational Hepatology·DateNov 11, 2024

Carpet fibers stop concrete cracking

Researchers at RMIT University have developed a technique using waste carpet fibers to reduce early-age shrinkage cracking in concrete by up to 30%, improving durability. The team aims to address the massive environmental challenge of textile waste disposal, which poses significant concerns for firefighting materials.

SourceRMIT University·JournalConstruction and Building Materials·TypeExperimental study·DateNov 11, 2024

Abortion and women’s future socioeconomic attainment

A new study finds that access to safe, legal abortion is associated with higher college graduation rates, better financial stability, and lower poverty levels among women. Women who had an abortion were more likely to experience economic mobility compared to those who became teen parents.

SourceUniversity of Utah·JournalAmerican Sociological Review·TypeData/statistical analysis·DateNov 11, 2024

Mount Sinai team shows AI can detect serious neurologic changes in babies in the NICU using video data alone

Researchers at Mount Sinai trained an AI algorithm on over 16 million seconds of video footage from newborns in the NICU to predict sedation and cerebral dysfunction. The study shows promise for a minimally invasive, scalable method for continuous neurologic monitoring.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalEClinicalMedicine·TypeObservational study·DateNov 11, 2024