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Science News Archive 2024 - Page 176


Page 176 of 484

An entire brain-machine interface on a chip: Converting brain activity to text on one extremely small integrated system

Researchers at EPFL developed a next-generation miniaturized brain-machine interface capable of direct brain-to-text communication on tiny silicon chips. The MiBMI system can decode neural signals generated when a person imagines writing letters or words with high accuracy and low power consumption.

SourceEcole Polytechnique Fédérale de Lausanne·JournalIEEE Journal of Solid-State Circuits·TypeMeta-analysis·DateAug 26, 2024

Spin squeezing for all

Researchers have successfully achieved spin squeezing in a more accessible way, enabling precise measurements with quantum-enhanced metrology. This breakthrough may lead to new portable sensors for biomedical imaging and atomic clocks.

SourceHarvard University·JournalNature Physics·TypeComputational simulation/modeling·DateAug 26, 2024

Looking for clues about your real age? Your grandparents’ education may offer some insight.

A new study found that grandchildren of college-educated grandparents showed slower biological aging than those whose grandparents did not graduate from college. The research, published in Social Science and Medicine, used epigenetic-based aging clocks to examine the relationship between grandparents' education level and their grandchi...

SourceDrexel University·JournalSocial Science & Medicine·TypeComputational simulation/modeling·DateAug 26, 2024

People of lower socioeconomic status less likely to receive cataract surgery in private clinics

A new study found that private clinics in Ontario increased cataract surgery rates for higher-income patients after receiving public funding, while lower-income patients saw a 9% decrease in access. The researchers suggest policy changes to address conflicts of interest and ensure equitable access to surgery.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·TypeObservational study·DateAug 26, 2024

High BMI eligibility for semaglutide could cost Medicare an additional $145 billion annually

A study published in Annals of Internal Medicine found that approximately 61% of Medicare-eligible adults have a BMI of 27 or higher, making them eligible for semaglutide. However, the number of patients who will be eligible depends on how cardiovascular disease is defined, with narrow definitions resulting in only 3.6 million people b...

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·TypeNews article·DateAug 26, 2024

Webb finds early galaxies weren’t too big for their britches after all

Recent discoveries from the James Webb Space Telescope's Cosmic Evolution Early Release Science Survey have cast doubt on the crisis in cosmology. Astronomers found that early galaxies were not as massive as initially thought due to the presence of black holes, which made them appear brighter and more massive than they actually are.

SourceNASA/Goddard Space Flight Center·JournalThe Astrophysical Journal·TypeNews article·DateAug 26, 2024

Piecing the puzzle together: How different brain regions contribute to visual object memory

Researchers identified key brain areas, including aVTC and OFC, essential for visual object memory in macaques. Single-neuron recordings revealed top-down regulation and causal information flow between these regions, shedding light on short-term visual object memory mechanisms.

SourceThe National Institutes for Quantum Science and Technology·JournalNature Communications·TypeExperimental study·DateAug 25, 2024

Quantum optical phenomenon in the brain challenges conventional view of amyloid in Alzheimer’s

Researchers discovered that amyloid fibrils can harness quantum superradiant effects to mitigate oxidative stress, potentially transforming dementia treatments and understanding of Alzheimer's disease. This finding raises questions about the conventional view of amyloid's role in the disease.

SourceHoward University·JournalFrontiers in Physics·TypeComputational simulation/modeling·DateAug 25, 2024

Scientists call for an update in environmental decision making that takes human rights into account

Researchers call for a rethink of environmental decision-making to consider foreseeable harm and integrate key scientific and ecological evidence, including local community knowledge. The update aims to address biodiversity loss as a human rights issue and align with advances in international human rights law.

SourceUniversity of Plymouth·Journalnpj Ocean Sustainability·TypeCommentary/editorial·DateAug 23, 2024

Research spotlight: evaluating hybrid and virtual treatments for children with anxiety and obsessive-compulsive disorder

Researchers found that intensive outpatient group- and family-based CBT that integrates telehealth can lead to significant improvements in pediatric anxiety and OCD symptoms. The hybrid model showed lasting gains for children even after treatment ended, with most families continuing to meet with clinicians after discharge.

SourceMcLean Hospital·JournalCurrent Developmental Disorders Reports·TypeObservational study·DateAug 23, 2024

Spike mutations help SARS-CoV-2 infect the brain

Researchers found a specific deletion in the spike protein that enhances the virus' ability to infect brains of mice, which could help understand 'long COVID' and develop treatments. The study suggests viruses with this deletion can traffic from the lung to the brain, leading to neurological symptoms.

SourceNorthwestern University·JournalNature Microbiology·DateAug 23, 2024

Slow down in China’s methane emission growth

Research published in National Science Review reveals that China's methane emission growth has significantly slowed down since 2016. The slowdown is attributed to reductions in agriculture and wetland emissions, with the rice planting area becoming a main driver of changes in methane emissions.

SourceScience China Press·JournalNational Science Review·DateAug 23, 2024

Researcher finds sound progress in babies’ speech development

A study by Dr. Pumpki Lei Su and colleagues analyzed over 300 children's home recordings to find that infants form patterns in their sound clusters, producing three categories of sounds. The researchers found significant clustering patterns in typically developing children and those later diagnosed with autism, suggesting a more sponta...

SourceUniversity of Texas at Dallas·JournalPLOS ONE·TypeObservational study·DateAug 23, 2024

When is the best time of day for cancer treatment?

Researchers have identified certain times of the day when cancer cells are most responsive to medication-based treatments, suggesting personalized treatment plans could improve efficacy and reduce side effects. The study used a method called high-throughput deep phenotyping to analyze the circadian rhythms of breast cancer cell lines.

SourceCharité - Universitätsmedizin Berlin·JournalNature Communications·TypeImaging analysis·DateAug 23, 2024

Pesco-vegetarian diets best for reducing risk of death in elderly

A new study published in the American Journal of Clinical Nutrition found that pesco-vegetarian diets are associated with a lower risk of mortality and certain neurological conditions in elderly individuals. The study analyzed data from over 88,000 subjects and found that pesco-vegetarians had an 18% lower risk of death compared to non...

SourceLoma Linda University Adventist Health Sciences Center·JournalAmerican Journal of Clinical Nutrition·DateAug 23, 2024

Chlamydia can settle in the intestine

Researchers found that Chlamydia bacteria can persist in the intestines of humans, where they form a permanent reservoir and evade antibiotic treatment. The bacteria preferentially infect the inner cell layer of intestinal organoids, but not the outer epithelial layer.

SourceUniversity of Würzburg·JournalPLOS Pathogens·TypeExperimental study·DateAug 23, 2024

Activated bamboo charcoal’s slow-release properties for enhanced anti-acne formulations containing bamboo vinegar

Researchers have developed a slow-release system using bamboo vinegar and activated bamboo charcoal to combat acne. The study shows that the refined bamboo vinegar, adsorbed by the bamboo charcoal, exhibits a gradual release rate over two hours, effectively demonstrating its potential as an anti-acne cosmetic raw material.

SourceKeAi Communications Co., Ltd.·JournalJournal of Dermatologic Science and Cosmetic Technology·TypeExperimental study·DateAug 23, 2024

Water activation induced strong interfacial hydrogen bonding interactions for efficient oxygen reduction reaction

Researchers develop a non-precious metal alternative to platinum group metals for efficient oxygen reduction reactions. Their Fe3C-Fe1/CNT catalyst exhibits excellent stability and high efficiency in acidic and alkaline environments, accelerating proton-coupled electron transfer and oxygen reduction kinetics.

SourceScience China Press·JournalNational Science Review·DateAug 23, 2024

Researchers demonstrate metasurfaces that control thermal radiation in unprecedented ways

The research team has successfully demonstrated the control of thermal radiation by metasurfaces, achieving circularly polarized light with full control over emission direction. This breakthrough enables the creation of custom light sources with desired spectral, polarization, and spatial features for various applications.

SourceAdvanced Science Research Center, GC/CUNY·JournalNature Nanotechnology·TypeExperimental study·DateAug 23, 2024