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Science News Archive 2025 - Page 100


Page 100 of 574

Phosphor-free white LED lamp rich in yellow-green spectrum

A new phosphor-free LED lamp rich in yellow-green spectrum was developed to study its photo-biological effects on human health. The findings show significant enhancements in visual performance and circadian rhythm under illumination from this lamp, revealing the unique benefits of yellow-green spectrum.

TikTok birth control advice exposes young people to risk

A study analyzed 100 TikTok videos on contraceptive health, finding that over half rejected hormonal birth control and a third expressed distrust in health professionals. Fertility awareness and cycle tracking were the most frequently discussed subjects, often without disclosing limitations or promoting ineffective methods.

SourceLa Trobe University·JournalPerspectives on Sexual and Reproductive Health·TypeContent analysis·DateAug 12, 2025

Wafer-scale nano-fabrication of multi-layer diffractive optical processors for unidirectional visible imaging

The team created a broadband, polarization-insensitive unidirectional imager that operates in the visible spectrum and suppresses image formation in the reverse direction. The device incorporates diffractive structures fabricated through wafer-scale lithography on high-purity fused silica.

World's first MPI-trackable alginate-based microrobot: breakthrough platform enables targeted stimulation, position tracking, and cell delivery without cameras or radiation

Researchers developed an alginate-based microrobot that can be tracked using Magnetic Particle Imaging (MPI) and performs real-time localization, selective thermal therapy, and cell delivery. The robot is powered by a single magnetic actuation system independent of conventional medical imaging devices.

SourceInternational Journal of Extreme Manufacturing·JournalInternational Journal of Extreme Manufacturing·DateAug 12, 2025

How to relieve arthritic knee pain without drugs or surgery

Researchers have developed a new approach to relieving arthritic knee pain through gait retraining, which involves adjusting the angle of a person's foot while walking. The study found that participants experienced pain relief equivalent to medication and showed less knee cartilage degradation over a year.

SourceUniversity of Utah·JournalThe Lancet Rheumatology·TypeRandomized controlled/clinical trial·DateAug 12, 2025

Fast, accurate, low-cost diagnostics: No lab required

Researchers at Arizona State University have developed a rapid and accurate diagnostic test called NasRED that can detect diseases like COVID-19 with high sensitivity. The test uses tiny gold nanoparticles to identify disease-related proteins in a sample of bodily fluid, providing lab-quality accuracy without expensive equipment.

SourceArizona State University·JournalACS Nano·TypeExperimental study·DateAug 12, 2025

Musicians do not demonstrate long-believed advantage in processing sound

A large-scale study from the University of Michigan and University of Minnesota found no association between musical training and enhanced neural processing of sounds at early stages of auditory processing. Musicians demonstrated no greater ability to process speech in background sounds or changes in pitch than non-musicians.

SourceUniversity of Minnesota·JournalNature Communications·TypeExperimental study·DateAug 12, 2025

People disregard advice when making tough decisions

An international study found that people across cultures tend to rely on their own intuition rather than seeking advice when making complex decisions. The research, led by the University of Waterloo, suggests that understanding this preference can help clarify cross-cultural misunderstandings and improve teamwork.

SourceUniversity of Waterloo·JournalProceedings of the Royal Society B Biological Sciences·TypeSurvey·DateAug 12, 2025

Study reveals how small changes in walking technique may help treat knee osteoarthritis

A new study suggests that subtly adjusting the angle of the foot during walking can reduce knee pain caused by osteoarthritis and slow its progression. By tailoring each patient's foot angle to their unique walking pattern, experts believe an easy and fairly inexpensive way to address early-stage osteoarthritis may be found.

SourceNYU Langone Health / NYU Grossman School of Medicine·JournalThe Lancet Rheumatology·TypeRandomized controlled/clinical trial·DateAug 12, 2025

Taste and price, not calories, key drivers for online takeaway orders, survey suggests

A survey of 1040 adult takeaway consumers in England found that taste and price are the primary considerations for ordering takeaways online, rather than calorie content. The study also revealed limited impact of calorie labelling on consumer choices, highlighting the need for additional strategies to promote healthier food options.

SourceBMJ Group·JournalBMJ Nutrition Prevention & Health·TypeObservational study·DateAug 12, 2025

New protein therapy shows promise as first-ever antidote for carbon monoxide poisoning

Researchers developed a new engineered protein-based therapy called RcoM-HBD-CCC, which acts like a sponge to soak up carbon monoxide from the blood. The therapy was tested on mice and showed promising results, clearing half of the carbon monoxide in the blood in less than a minute.

SourceUniversity of Maryland School of Medicine·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateAug 12, 2025

Children’s Hospital of Philadelphia, Clinic for Special Children discover ultra rare form of neuroinflammatory disease is much more common in Old Order Amish than general population

Researchers from CHOP and Clinic for Special Children discovered a genetic disorder affecting the immune system is prevalent in the Old Order Amish community. The study found that complement factor I deficiency, an ultra-rare genetic disorder causing debilitating neuroinflammation, is more common in individuals of Old Order Amish ances...

SourceChildren's Hospital of Philadelphia·JournalJournal of Allergy and Clinical Immunology·TypeCase study·DateAug 12, 2025

Tiny robots use sound to self-organize into intelligent groups

A team of scientists has developed microrobots that use sound waves to coordinate into large swarms exhibiting intelligent-like behavior. The swarms can navigate tight spaces and re-form themselves, making them suitable for tasks like cleaning up pollution and delivering drugs directly to a problem area.

SourcePenn State·JournalPhysical Review X·TypeComputational simulation/modeling·DateAug 12, 2025

Laser therapy enhances treatment of fungus resistant to conventional medication

Researchers have successfully increased the susceptibility of Candida albicans to drug treatment through light-activated therapy. Combining photodynamic inactivation with antifungal amphotericin B reduced fungal growth by up to 87.5% and demonstrated potential as an alternative to combat antimicrobial resistance.

SourceFundação de Amparo à Pesquisa do Estado de São Paulo·JournalPhotochemistry and Photobiology·DateAug 12, 2025

Galactic Rosetta Stone: Study measuring magnetic field near the center of the Milky Way helps to decode the precise astrophysical dynamics at the heart of our galaxy

Researchers measured magnetic field of Sagittarius C, a region in the Central Molecular Zone, to understand interaction between dense clouds, star formation, and strong magnetic field. The study found that the magnetic field wraps around an expanding central bubble of hot, ionized gas created by massive young stars.

SourceUniversity of Chicago·JournalThe Astrophysical Journal·DateAug 12, 2025

The Lancet Gastroenterology & Hepatology: Routine AI assistance may lead to loss of skills in health professionals who perform colonoscopies, study suggests

A study published in The Lancet Gastroenterology & Hepatology found that routine AI assistance during colonoscopies can lead to a decrease in the ability of endoscopists to detect precancerous growths without AI aid. This reduction in skills may impact patient-related outcomes and highlight the need for further research on the long-ter...

SourceThe Lancet·JournalThe Lancet Gastroenterology & Hepatology·TypeObservational study·DateAug 12, 2025

Rapa Nui's iconic moai threatened by sea level rise

A recent study warns that Rapa Nui's Ahu Tongariki platform and up to 51 cultural assets will be impacted by coastal flooding due to sea level rise. The research provides critical data for community discussion and planning, highlighting the urgent need to protect UNESCO world heritage sites.

SourceUniversity of Hawaii at Manoa·JournalJournal of Cultural Heritage·TypeComputational simulation/modeling·DateAug 12, 2025

Groundbreaking study unveils "pore science and engineering" for next-gen porous materials

Researchers develop a promising blueprint for 'Pore Science and Engineering,' proposing two key aspects: Pore Chemistry and Pore Structure. This concept aims to achieve precise molecular-level control guided by theoretical foundations, transforming the development of porous materials from trial-and-error to on-demand design.

SourceScience China Press·JournalNational Science Review·TypeLiterature review·DateAug 12, 2025

Genetically engineered mouse model provides insights on genetic bone disorders

Researchers developed a genetically modified mouse model to study osteogenesis imperfecta (OI), a rare genetic bone disorder. The study found that the Sp7 R342C mutation affects bone mineral density, trabecular bone volume fraction, and cortical porosity, leading to impaired bone remodeling.

SourceEditorial Office of West China School of Stomatology, Sichuan University·JournalBone Research·TypeExperimental study·DateAug 12, 2025