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Science News Archive 2025 - Page 545


Page 545 of 574

New study: Contrary to common belief, tipping is not an effective incentive for improving service

A new study by Tel Aviv University researchers challenges the common belief that tipping is a key motivator for better service. The study reveals that tipping rates are driven more by social pressure than genuine appreciation for the service. As a result, average tipping rates tend to rise over time in societies with stronger norms.

SourceTel-Aviv University·JournalManagement Science·DateOct 29, 2025

American Pediatric Society announces Bruce D. Gelb, MD, as recipient of its prestigious 2026 APS John Howland Award

Dr. Bruce D. Gelb, MD, is selected as recipient of the 2026 APS John Howland Award for his groundbreaking work on congenital heart disease (CHD) and related developmental disorders. His research has significantly expanded the scientific understanding of CHD and opened new avenues for diagnostic approaches.

Combination of two blood biomarkers improves diagnostic accuracy in ALS

Researchers found that combining serum neurofilament light chain (sNfL) and cardiac troponin T (cTnT) biomarkers significantly improves ALS diagnosis by differentiating it from other neurodegenerative diseases. The study identified an ALS-specific threshold for cTnT, allowing for increased sensitivity in identifying affected patients.

SourceUniversitatsklinikum Bonn·JournalAnnals of Neurology·TypeRandomized controlled/clinical trial·DateOct 29, 2025

New 3D genome mapping tool reveals hidden complexity in DNA

A novel 3D chromosome mapping method has been developed to detect hidden structural variants in DNA, revealing new discoveries for genetic disorders. The study successfully identified known large chromosomal variants with 100% concordance and uncovered 12 novel structural variants missed by standard clinical tests.

SourceElsevier·JournalJournal of Molecular Diagnostics·TypeObservational study·DateOct 29, 2025

Nanoscale thermoelectric effects offer new perspectives on energy management

A new quantum transport theory reveals how femtosecond time scale thermoelectric fluctuations influence energy control at the nanoscale. Researchers at the University of Jyväskylä have developed a theoretical approach that enables accurate simulations of temperature differences and electric currents in nanoscale junctions formed by sin...

SourceUniversity of Jyväskylä - Jyväskylän yliopisto·JournalPRX Energy·TypeComputational simulation/modeling·DateOct 29, 2025

Artificial neurons developed by USC team replicate biological function for improved computer chips

Researchers at USC Viterbi School of Engineering have developed artificial neurons that physically embody the analog dynamics of biological brain cells. These innovations will allow for significant reduction in chip size and energy consumption, potentially advancing artificial general intelligence.

SourceUniversity of Southern California·JournalNature Electronics·TypeExperimental study·DateOct 29, 2025

Atlantic multidecadal oscillation identified as key driver of compound hot drought events over Northern East Asia

Researchers identified AMO as key driver of compound hot drought events in Northern East Asia, with periods of weakening and strengthening linked to changes in climate. The study provides a new physical perspective for understanding variability in the region's hot droughts and offers insights for improving decadal climate prediction.

SourceScience China Press·JournalScience China Earth Sciences·DateOct 29, 2025

Tiny 3D printer reconstructs tissues during vocal cord surgery

A team of biomechanical engineers and surgeons has developed a 3D-printing soft robot that can accurately deliver hydrogels to the vocal cord surgical site. The device, which is only 2.7 mm in size, can reconstruct tissues removed during surgery and potentially prevent fibrosis and stiffening of the vocal cords.

SourceCell Press·JournalDevice·TypeExperimental study·DateOct 29, 2025

Plant biomass substance helps combat weeds

A study found that lignin, a polymer from plant cell walls, can improve the performance of nanoparticles with herbicide. Lignin was subjected to a green process and showed distinct properties, making it suitable for customizing different applications. The substance demonstrated potential for sustainable agricultural pest management.

SourceFundação de Amparo à Pesquisa do Estado de São Paulo·JournalACS Sustainable Chemistry & Engineering·DateOct 29, 2025

Fruit flies offer new insights into how human Alzheimer’s Disease risk genes affect the brain

A study by Baylor College of Medicine researchers identified 50 candidate Alzheimer's disease risk genes in fruit flies, which were involved in both brain structure and function. The findings suggest that different individuals may develop Alzheimer's through distinct biological pathways, providing new insights into the disease.

SourceBaylor College of Medicine·JournalAmerican Journal of Human Genetics·TypeExperimental study·DateOct 29, 2025

Global, regional, and national burden of cancer in the elderly population, 1990–2021: analysis of data from the Global Burden of Disease Study 2021

This study examines the global, regional, and national burden of cancer among individuals aged 60-94 worldwide. The analysis reveals significant disparities in cancer prevalence, mortality, and disability-adjusted life years (DALY) among elderly populations.

SourceFAR Publishing Limited·JournalMed Research·TypeData/statistical analysis·DateOct 29, 2025

Flavanols in cocoa can protect blood vessel function following uninterrupted sitting - study

A new study from the University of Birmingham found that consuming flavanols can preserve blood vessel function in young healthy men during periods of uninterrupted sitting. The researchers tested whether high-flavanol cocoa could prevent FMD declines, and found significant protection against vascular dysfunction.

SourceUniversity of Birmingham·JournalThe Journal of Physiology·TypeObservational study·DateOct 29, 2025

This is your brain without sleep

Researchers found that sleep-deprived individuals experience attentional failures coinciding with a flushing of CSF from the brain. During these lapses, physiological changes occur, including a flux of CSF out and then back in. The study suggests that the brain attempts to compensate for lost cleansing by initiating pulses of CSF flow.

SourceMassachusetts Institute of Technology·JournalNature Neuroscience·DateOct 29, 2025

Artificial intelligence takes the lead in revolutionizing cancer research explored at NFCR’s 2025 Global Summit and Award Ceremonies for Cancer Research and Entrepreneurship.

Artificial intelligence is transforming cancer prevention, detection, and treatment by connecting technology with people. AI-driven public-health analytics, patient-doctor relationships, and diverse clinical research are crucial for delivering immediate benefit to patients, clinicians, and policymakers.