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Science News Archive 2025 - Page 471


Page 471 of 574

Researchers uncover clues to mysterious origin of famous Hjortspring boat

Researchers have uncovered clues about the ancient Hjortspring boat's origins, including a partial human fingerprint and carbon-dating results indicating it was built in the 4th or 3rd century BCE. The findings suggest that the boat may have come from the Baltic Sea Region, where pine forests were more abundant.

SourcePLOS·JournalPLOS One·TypeObservational study·DateDec 10, 2025

Towards inclusive wearable sensors: Polarized light boosts accuracy of wearable health sensors for all skin tones

A newly developed wearable sensor uses polarized light to improve photoplethysmography (PPG) signal accuracy across different skin tones. The device splits light into two channels, detecting co-polarized and cross-polarized signals to filter out superficial scattering and capture stronger signals from deeper tissue.

SourceSPIE--International Society for Optics and Photonics·JournalBiophotonics Discovery·TypeObservational study·DateDec 10, 2025

Controlled laboratory study finds no evidence of stress or brain activity changes related to 5G exposure

Researchers conducted two triple-blind human studies using real 5G signals in the 26 GHz band, finding no measurable biological effects on stress responses or brain electrical activity. Cortisol and alpha-amylase levels remained stable across all sampling points, indicating no acute biological changes related to stress.

SourceBarcelona Institute for Global Health (ISGlobal)·JournalEnvironmental Research·TypeRandomized controlled/clinical trial·DateDec 10, 2025

Orchestrating catalytic hotspots and macromolecular architectures: Molecular engineering toward zero-waste polymer circularity

This review advances thermal depolymerization by merging atomic-scale active site engineering and macromolecular-scale manipulation of polymer transient states. Breakthroughs in operando characterization techniques enable design paradigms for next-generation upcycling systems.

SourceHigher Education Press·JournalAdvanced Powder Materials·TypeExperimental study·DateDec 10, 2025

USC researchers develop next-generation CAR T cells that show stronger, safer response in animal models

Researchers at USC's Keck School of Medicine have developed a new type of chimeric antigen receptor (CAR) T cell that elicits a more controlled immune response to cancer. The engineered CAR T cells may offer a way to more safely treat blood cancers and reduce the chance of relapse.

SourceKeck School of Medicine of USC·JournalScience Translational Medicine·TypeExperimental study·DateDec 10, 2025

A Trojan horse for artificial amino acids

Researchers at ETH Zurich have developed a solution to introduce artificial amino acids into bacteria efficiently. By hijacking a natural transport system, they can produce designer proteins with unnatural amino acids just as efficiently as their natural counterparts. This breakthrough enables the expansion of the 'amino acid toolbox' ...

SourceETH Zurich·JournalNature·DateDec 10, 2025

Study links gut bacteria to bloodstream infections in newborns within sub-Saharan Africa for the first time

A new study has revealed that the same bacteria causing bloodstream infections in newborns are also found in their gut, making it possible to identify infected infants through stool samples. The research highlights the need for improved surveillance, targeted antibiotic strategies, and interventions to prevent infections.

SourceLiverpool School of Tropical Medicine·JournalCommunications Biology·TypeObservational study·DateDec 10, 2025

Genomic maps untangle the complex roots of disease

Researchers develop comprehensive method to connect diseases with underlying genetic machinery, revealing intricate gene networks that influence complex traits. The new technique provides actionable insights into how specific genes affect cell functions, shedding light on biological mechanisms and potential therapeutic targets.

SourceGladstone Institutes·JournalNature·DateDec 10, 2025

New study reveals Industrial Revolution’s uneven health impacts across England

A new study has uncovered hidden stories of pollution, gender, and life in industrializing Britain by analyzing bone chemistry and isotopic analysis of skeletal remains from two English towns. The findings reveal that exposure to toxic elements varied significantly across communities, sexes, and social identities.

Your brain on imagination: Study reveals how the mind’s eye helps us learn and change

A new study found that vividly imagining positive encounters with someone can make you like them better and change how information about that person is stored in your brain. The study suggests that imagination can actively shape what we expect and choose, providing a mechanism-level reason for how it influences motivation and choices.

SourceUniversity of Colorado at Boulder·JournalNature Communications·TypeImaging analysis·DateDec 10, 2025

How emotions spread online following celebrity suicide news

A study analyzing resharing behavior on X (formerly Twitter) shows that different expressed emotions unfold in the aftermath of celebrity suicides, with disgust being the most contagious emotion. The findings emphasize the need for emotion-specific approaches to both theoretical modeling and practical intervention in online environments.

SourcePLOS·JournalPLOS One·TypeObservational study·DateDec 10, 2025

Reciprocity matters--people were more supportive of climate policies in their country if they believed other countries were making significant efforts themselves

A survey of 4,000 Chinese, Indian, Japanese, and US citizens found that people were more supportive of climate policies in their own country if they believed other countries were also taking action. The study's findings suggest that reciprocity plays a significant role in shaping public opinions on climate policy.

SourcePLOS·JournalPLOS Climate·DateDec 10, 2025

Study: Adults face lasting effects months after RSV hospitalization

A new study found that adults hospitalized with RSV often struggle with breathlessness, reduced ability to perform everyday activities, and lower quality of life six to 12 months after their hospitalization. The study also showed that younger adults can experience serious RSV infections requiring hospitalization, similar to older adults.

SourceUniversity of Michigan School of Public Health·JournalEmerging Infectious Diseases·DateDec 10, 2025

Modulating the coordination environment in CeO2-x towards enhanced photocatalytic CO2 conversion stability and performance

Researchers developed a strategy to regulate the coordination environment of CeO2-x via indium doping, mitigating vacancy defect issues and enhancing photocatalytic CO2 conversion. The introduced In dopants form complexes that suppress unstable vacancy clusters, improving stability and catalytic activity.

SourceHigher Education Press·JournalAdvanced Powder Materials·TypeExperimental study·DateDec 10, 2025

New advances in quantum structured light pave the way for safer communications and ultra-fast computing

The field of quantum structured light has transformed the way we communicate, measure and process information by combining quantum information with spatial and temporal structures of light. This technology enables simpler and faster circuits for quantum computing, as well as improved resolution techniques in imaging and metrology.

SourceUniversitat Autonoma de Barcelona·JournalNature Photonics·TypeSystematic review·DateDec 10, 2025

The rhythm of swarms

Tiny particles can coordinate motion and internal rhythms to exhibit complex collective behavior, similar to biological systems. The swarmalator model has potential applications in autonomous robotics and explores the emergence of complex dynamics from simple interactions.

SourceUniversity of Konstanz·JournalNature Communications·DateDec 10, 2025

SMART launches new research center to develop world’s first wearable ultrasound imaging system for real-time monitoring of chronic conditions

The Singapore-MIT Alliance has launched a new research center to develop the world's first wearable ultrasound imaging system, enabling real-time monitoring of chronic conditions like hypertension and heart failure. The system will be validated through clinical trials at Tan Tock Seng Hospital.

Unraveling nitrogen removal in riverine wetlands: key roles of denitrification and anammox across a latitudinal gradient

A recent study sheds light on the spatial patterns of denitrification and anammox along a 3,500 km latitudinal gradient, highlighting their contributions to global nitrogen cycling. The research found that denitrification rates declined with soil depth, while anammox contributed more significantly in riparian bulk soils.

SourceMaximum Academic Press·TypeExperimental study·DateDec 10, 2025

For knowledge scouts, broader isn’t better

New research from the University of Texas at Austin finds that knowledge scouts who work across multiple divisions are less effective in launching successful projects. The study highlights the challenges of managing knowledge scouts and recommends companies be more strategic in rotating them across projects and time.

SourceUniversity of Texas at Austin·JournalAcademy of Management Journal·DateDec 10, 2025

Uncovering dental caries heterogeneity in NHANES using machine learning

Researchers develop an integrated pipeline to analyze and visualize NHANES dental caries data, identifying age-driven heterogeneity and novel associations between caries status, environmental factors, and disease markers. The study demonstrates the value of integrating machine learning with large-scale observational data for deeper ins...

A light-based modulation tool for brain plasticity opens promising avenues for treating Huntington’s disease

A light-based modulation tool has been developed to treat Huntington's disease by modulating brain plasticity. The optogenetic tool allows for precise control of cAMP signalling in astrocytes, enhancing synaptic plasticity and revealing alterations in the disease. This breakthrough opens new avenues for targeted therapies.

SourceUniversity of Barcelona·JournaliScience·TypeExperimental study·DateDec 10, 2025

Einstein’s theory comes wrapped up with a bow: astronomers spot star “wobbling” around black hole

Scientists have observed a swirling vortex in spacetime caused by a rapidly rotating black hole, confirming predictions made by Einstein more than a century ago. The team detected rhythmic changes in X-ray and radio signals from the event, showing that the disk and jet were wobbling in unison every 20 days.

SourceCardiff University·JournalScience Advances·TypeObservational study·DateDec 10, 2025

Breakthrough in titanium composite design achieves unprecedented strength-ductility synergy across temperature extremes

Researchers developed a novel heterostructured titanium matrix composite with exceptional mechanical performance from room temperature to elevated temperatures. The composite balances strength and ductility, overcoming the traditional trade-off, for aerospace and high-temperature applications.

SourceHigher Education Press·JournalAdvanced Powder Materials·TypeExperimental study·DateDec 10, 2025

New USF study finds widespread rule-breaking in whale shark tourism hotspot

A new USF study found that tour boats and swimmers routinely violate Mexico's whale shark tourism rules, even when waters are less crowded. The research, based on drone footage from 2016 and 2022, suggests that the world's busiest whale-shark destination is struggling to manage demand, putting vulnerable animals at risk.

SourceUniversity of South Florida·JournalJournal of Sustainable Tourism·TypeObservational study·DateDec 10, 2025

Fair distribution of emissions

A framework has been developed to calculate fair distribution of the remaining greenhouse gas budget among European regions. The 'Equal Transition Opportunity Production-Based Allocation' (ETOPA) mechanism takes into account regional economic structures and risks in the transition to a climate-neutral economy.

SourceUniversity of Graz·JournalNature Communications·TypeData/statistical analysis·DateDec 10, 2025

Parents' cardiometabolic diseases may predispose offspring to faster progression of heart damage from adolescence

A large study found that a family history of cardiometabolic diseases increases the risk of progressive heart damage in adolescents, with increased glucose levels partly explaining this association. The study suggests that early intervention and healthy lifestyle habits can help prevent premature heart damage in children.

SourceUniversity of Eastern Finland·JournalEuropean Journal of Preventive Cardiology·TypeObservational study·DateDec 10, 2025

Integrated atmosphere-to-seafloor monitoring needed to better forecast cyclones, researchers say

A team of researchers emphasizes the need for an intelligent observation network to track and forecast tropical cyclones. By combining unmanned aerial, surface, and underwater vehicles, they aim to create a dynamic observation network across the atmosphere, ocean surface, and water column.

SourceOcean-Land-Atmosphere Research (OLAR)·JournalOcean-Land-Atmosphere Research·TypeSystematic review·DateDec 10, 2025