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Science News for December 30, 2025


Sheep study shows tiny ultrasound array can track blood pressure under the skin

A study demonstrates a minimally invasive subcutaneously implanted ultrasonic device that captures real-time arterial diameter changes to derive precise blood pressure values. The device achieves clinically acceptable errors of less than 3 mmHg, making it suitable for long-term hypertension management and continuous monitoring.

V-band ultra-fast tunable thin film lithium niobate Fourier-domain mode-locked optoelectronic oscillator

Researchers developed a V-band ultra-fast tunable thin film lithium niobate Fourier-domain mode-locked optoelectronic oscillator to generate LCMW with low phase noise and large TBWP. The FDML OEO achieved record-breaking high radiofrequency oscillations up to 65 GHz.

Beyond bigger models: How efficient multimodal AI is redefining the future of intelligence

Recent progress in designing lighter, faster, and more resource-efficient multimodal AI systems is highlighted in a comprehensive survey. Vision token compression techniques and emerging architectures like mixture-of-experts selectively activate model components to increase capacity without proportional increases in computation.

SourceTsinghua University Press·JournalVisual Intelligence·DateDec 30, 2025

Overview of organophosphonate covalently modified polyoxometalates: From synthesis, structural diversity to applications

Research on organophosphonate covalently modified polyoxometalates reveals the synthesis strategies, structural design, and performance characteristics of organic-inorganic hybrid materials. These materials exhibit broad applications due to their redox activity, structural tunability, low toxicity, and high stability.

SourceTsinghua University Press·JournalPolyoxometalates·DateDec 30, 2025

Decoupling the HOR enhancement on PtRu: Dynamically matching interfacial water to reaction coordinates

Research reveals PtRu alloys achieve higher HOR activity by dynamically matching spatial distribution of active sites and interfacial water orientation, reducing solvent reorganization energy. This study employs density functional theory calculations and ab initio molecular dynamics simulations to elucidate the electrocatalytic mechanism.

Three UH Rainbow Babies & Children’s faculty elected to prestigious American Pediatric Society

Pediatric faculty members Michael Dell, Ross Myers, and Samudragupta Bora were elected to the American Pediatric Society for their exceptional contributions to clinical care, education, and research. The American Pediatric Society is a leading academic pediatric organization that has advanced child health for over 130 years.

Too much hydrogen? Scientists reveal how metabolic shifts and viral defense in syngas microbiomes

Researchers discover that excess hydrogen disrupts microbial balance, triggering major shifts in metabolism and viral dynamics. This study provides molecular-level evidence on the effects of hydrogen oversupply on methane production, highlighting the need for gas-ratio control in industrial reactors.

SourceChinese Society for Environmental Sciences·JournalEnvironmental Science and Ecotechnology·DateDec 30, 2025

Prediabetes is increasingly common among children living with overweight or obesity – prevalence has risen alongside maternal overweight

A recent study by University of Eastern Finland found that prediabetes has increased significantly in Finnish children living with overweight or obesity, rising from 11% to 50% over two decades. The study suggests a potential link between maternal overweight and the rise in child prediabetes prevalence.

SourceUniversity of Eastern Finland·JournalInternational Journal of Obesity·DateDec 30, 2025

Experiments advance potential of protein that makes hydrogen sulfide as a therapeutic target for Alzheimer’s disease

Researchers have identified a key protein that produces hydrogen sulfide gas as a therapeutic target for Alzheimer's disease. Experiments in genetically engineered mice show that this protein, Cystathionine γ-lyase (CSE), plays a critical role in cognitive function and memory formation.

SourceJohns Hopkins Medicine·JournalProceedings of the National Academy of Sciences·DateDec 30, 2025

CityUHK scholar participates in global study revealing global food‑safety risks in marine fish

A global study reveals correlation between PFAS contamination in edible marine fish and human health risks. Consumers may be exposed to elevated levels of toxic compounds through imported fish, increasing food-safety risks despite low environmental pollution.

Estimating unemployment rates with social media data

Researchers developed an AI model that detects unemployment-related social media posts with high precision, capturing nearly three times more disclosures than previous approaches. The method reduced forecasting errors by 54.3% compared to industry consensus forecasts and proved valuable during the COVID-19 pandemic.

SourcePNAS Nexus·JournalPNAS Nexus·DateDec 30, 2025

KIST develops eco-friendly palladium recovery technology to safeguard resource security

Researchers at KIST develop an eco-friendly palladium recovery technology that enables the efficient recovery of high-purity palladium in weakly acidic environments. The technology features a novel material that can recover 99.9% of palladium within 30 minutes, reducing energy consumption and carbon emissions by up to 80%.

SourceNational Research Council of Science & Technology·JournalAdvanced Functional Materials·DateDec 30, 2025