Researchers tested various face masks to determine their ability to contain respiratory droplets. Loosely folded and bandanna-style coverings reduced droplet distance by half, but well-fitted homemade masks with multiple layers were the most effective.
Research reveals that seabirds produce efficient propulsive wakes when flying and swimming, allowing them to move with minimal metabolic energy in both environments. However, the birds' wing movements indicate a cost to using their wings for movement in air and water.
A new study published in Radiology found that 3D color-flow ultrasound is an effective, noninvasive method for measuring blood flow with high accuracy and reproducibility. The technique overcomes limitations of current methods such as blood pressure and 2D ultrasound, which provide only surrogate metrics or are prone to errors.
Researchers developed a vaccine targeting aged immune cells, which accumulated in fat tissues of obese individuals and caused chronic inflammation. Vaccination improved glucose metabolism, insulin resistance, and overall organ function in obese mice by removing senescent T cells.
A custom light-sheet microscope enables gentle observation of corals and their polyps for eight hours at high resolution. This technology sheds light on coral bleaching and symbiotic relationships.
A recent study in the quarantined Italian town of Vò found that nearly 40% of COVID-19 cases showed no symptoms, emphasizing the role of asymptomatic transmission. The study suggests that widespread testing, isolating infected people, and community lockdowns effectively controlled the outbreak.
A University of Kansas study found that Kansans tend to rely on multiple sources for reliable COVID-19 information, with a preference for local authorities and distrust of social media. Information from government briefings, search engines, and national newspapers were among the most trusted sources.
Researchers at the Francis Crick Institute have identified a protein used by the malaria parasite to protect itself from toxic compounds in red blood cells. This discovery could lead to the development of drugs that block this process, potentially providing valuable insights for treating malaria.
Researchers found that symptoms like nausea and vomiting can occur at any time of day, not just morning. A significant number of women experience these symptoms throughout the waking day.
Researchers estimate that a food tax on saturated fat, salt, and sugar would save the health system NZ$14.7 billion over time. This scheme would also lead to notable reductions in chronic disease rates, including a one quarter to one third reduction in diabetes incidence.
Tropical Depression Four-E formed on June 29 and is forecast to weaken as it moves northwestward. The depression's maximum sustained winds have decreased to near 30 mph with higher gusts.
A recent study reveals a new magnetic state called skyrmion, which can be manipulated using electric fields to create more compact and efficient nanomagnetic devices. This breakthrough could lead to significant improvements in computer performance and reduce energy consumption.
New findings reveal that infant marsupials and monotremes use a connection between their ear and jaw bones to drink milk, suggesting an early evolutionary link. This discovery sheds light on the development of middle ear and jaw bones in mammals.
Researchers at Gladstone Institutes and UCSF have developed a comprehensive region-specific atlas of regulatory regions linked to human embryonic brain development. The study identified 19,000 potential genetic variants critical to brain development, providing a valuable tool for probing underlying biology of neurodevelopmental disorders.
Researchers at the University of Pennsylvania used a glowing dye to illuminate cancerous tissue during surgery, which helped identify spread to lymph nodes. The technique could improve outcomes in breast cancer patients undergoing breast-conserving surgery.
Researchers have identified a critical step in how brain cells function in people with one of the most common forms of epilepsy, which could lead to new treatment approaches. Changes in gene activity and polyadenylation processes were found to be dramatically altered in people with epilepsy, changing protein production in the brain.
Researchers at the University of Bristol have identified a novel protein pathway in several human neurodegenerative diseases, including Huntington's disease. Abnormal expression of SAFB1 was found to be associated with spinocerebellar ataxias and polyglutamine expansion, offering new potential diagnostic markers and therapeutic targets.
UTEP research reveals a new target for tuberculosis drug development by investigating the mechanisms of Mtb pathogenesis and discovering that Nα-acetylation of EsxA drastically affects the course of infection. The study provides a beautiful story in the prestigious Journal of Biological Chemistry.
Research highlights risk of ecological change as wildfires flare up across West, driving changes in forest vegetation and threatening wildlife habitats and local economies. Scientists explore strategies to adapt forests to emerging climatic conditions, including 'assisted migration' and managing wildfire for resource objectives.
Researchers examine how walking backward on a treadmill impacts sensory signaling in the brain and body to improve walking in stroke survivors. The study aims to develop more effective walking rehabilitation strategies for those with remaining walking impairment.
Researchers found that a single change in the GRP94 protein causes it to behave abnormally, leading to widespread dysfunction in cells. A new small molecule PU-WS13 has been identified as a potential treatment for cancer and Alzheimer's disease by repairing defects in the defective protein.
A nationwide study led by Rutgers researchers presents clinical characteristics, treatments, and outcomes of multiple inflammatory syndrome (MIS-C) in children. The study found that symptoms typically appear two to four weeks after COVID-19 exposure and affect the heart and digestive system more frequently.
Researchers have created biocompatible lenses using spider silk, enabling large-area imaging of biological areas with high resolution. The lenses use dragline silk's unique properties to generate a photonic nanojet, suitable for biomedical applications.
Researchers have developed novel APOBEC-Cas9 fusion-induced deletion systems (AFIDs) that induce precise, predictable multi-nucleotide deletions in rice and wheat genomes. The AFID system has been shown to confer enhanced resistance to rice bacterial blight.
A four-week study found that traditional strength training (TRT) and plyometric jump training (PJT) are equally effective in improving muscular fitness among sedentary young adults. No significant differences were observed between the two groups, suggesting these exercises can be used interchangeably for physical fitness.
Research by the University of Göttingen found that wild bees depend on landscape structure, with small fields and organic areas providing benefits for bumblebee colonies. Flower strips in conventional cereal fields also attract pollinators, highlighting the importance of agri-environmental schemes that consider landscape structure.
A new study from the University of Surrey discovered that roadside hedges protect human health by reducing air pollution exposure, but at the cost of harming plant health. The researchers found that fine particles on leaves were more prevalent on the traffic-facing side of the hedge.
A Johns Hopkins Medicine team recommends equitable care during pandemic resource allocation by requiring bias training and assessing system inequalities. Hospitals should prioritize resource distribution based on individual patient needs rather than solely on health factors like heart failure or diabetes.
A team of researchers at Carnegie Mellon University has developed an automated method for making communications more polite, using a large dataset of labeled sentences. The system can restructure nonpolite directives or add words to make them more well-mannered, while maintaining the original meaning.
Researchers recommend avoiding all per- and polyfluorinated substances (PFAS) for nonessential uses, citing their extreme persistence and toxicity. Studied PFAS have been linked to various serious health problems, including cancer and endocrine disruption.
Researchers designed millions of protein therapeutics targeting SARS-CoV-2, with over 2,000 showing binding signals. The approach has shown promise in identifying highly promising leads for the spike protein binder.
A recent study published in Radiology found that prostate MRI quality is highly variable across institutions, with a significant impact on cancer detection and treatment outcomes. The study's findings suggest that improved standardization and training are needed to ensure consistent imaging results and better patient care.
Researchers found that olaparib depletes the store of immature eggs in mouse ovaries by 36%, potentially affecting a woman's fertility. Fertility preservation counselling should be considered for young female patients prior to olaparib treatment.
Researchers are using Jupiter's mass and orbit to help locate the center of gravity of the solar system, which can signal the presence of massive black holes. By analyzing changes in pulsar timing, they aim to detect gravitational waves that warp space-time.
Researchers at Skoltech have developed a non-invasive technique for measuring the thickness of single-walled carbon nanotube films, which may have applications in solar energy, smart textiles, and more. The method uses spectroscopic ellipsometry to determine film parameters with high accuracy.
Researchers found higher brain iron levels associated with cognitive deterioration in Alzheimer's disease, suggesting a potential role for iron chelators in treatment. Iron deposition was linked to amyloid beta and neurofibrillary tangles, disruptors of cell function.
Tracking each atom in the NMDA receptor has revealed how it transmits and inhibits neural signals. The discovery could lead to better treatments for Alzheimer's disease, depression, epilepsy, stroke, or schizophrenia by controlling the receptor's activity.
Scientists discovered colorful insect specimens in 99-million-year-old amber fossils, revealing the secrets of true coloration. The study sheds light on the behavior and ecology of ancient animals, providing insights into ecosystems in the deep geological past.
Researchers found that IQGAP1 controls centrosome function and defines molecular variants of breast cancer. IQGAP1 modulates nuclear-centrosome crosstalk to regulate cell division, suggesting a common target for personalized medicine in triple-negative breast cancer.
A statewide study found that 47% of patients are using health information technology (HIT) for communication, but few have discussions about its use. Only 21% reported having a conversation with their doctor or provider about how to correspond digitally.
Researchers at NYU Langone Health have developed a new vaccination strategy that targets the toxic molecules released by Staphylococcal bacteria, including MRSA, to prevent deadly infections. In a study published in the Journal of Experimental Medicine, mice vaccinated with this experimental vaccine demonstrated an immune response and ...
Scientists successfully synthesized a 17-carbon wide graphene nanoribbon with the smallest bandgap seen to date among known graphene nanoribbons. This breakthrough has significant implications for the development of new electronic devices.
Wild strains of salmonella have been found to reopen stomates on plants, allowing them to bypass the immune defense system and cause foodborne illnesses. This finding highlights the increasing threat of opportunistic pathogens jumping from plants to humans through contaminated foods.
Researchers fabricated a visible light-activated photocatalytic film by doping nitrogen into TiO2 on commercial ceramic membranes. The N-TiO2 coating enhances stability under solar irradiation through redox reactions and increased surface hydrophilicity.
Researchers analyzed de-identified medical claims covering 6.3 million North Carolinians, revealing significant overall spending of $50 billion per year. Key takeaways include geographic variation, cost variation by payer type, and spending variation by service category.
Researchers at Penn State suggest that supermassive black hole coronae could be the source of high-energy cosmic neutrinos, exceeding expectations. The new model predicts electromagnetic counterparts in soft gamma-rays, with next-generation detectors poised to explore this possibility.
A new review of 80 research papers reveals that microplastic pollution is concentrated in coastal habitats such as fjords and estuaries. The study found high concentrations of microplastics, up to 200,000 particles per kilogram, in these areas.
Research found a significant increase in insulin pump use and a decline in diabetic nephropathy, while pre-pregnancy obesity rose. The percentage of mothers with excess weight gain during pregnancy also increased. Despite this, the prevalence of very large babies born remained the same.
Researchers have identified a promising new strategy to target tumors with metabolic weaknesses, particularly in patients with IDH mutant gliomas. Combining chemotherapy and PAR glycohydrolase inhibitors has shown promise in enhancing treatment effectiveness.
A recent study found that tropical reefs are driven by bottom-up forcing, while temperate reefs are more influenced by top-down forcing. Marine reserves increased predator populations in both tropical and temperate regions.
Research found that miR-133b levels were significantly lower in FAP-associated Desmoid tumors than in sporadic Desmoid tumors. SIRT1 mRNA levels were up-regulated in FAP-associated Desmoid tumor, suggesting a novel mechanism underlying progression.
Researchers at OIST Graduate University have identified previously unknown sections of DNA that are silenced by epigenetic regulation in plant cells. The study reveals a crucial role of these sites in suppressing the activity of disruptive 'jumping genes' called transposons, which can threaten genome integrity.
Researchers found two chemically distinct hemispheric faces, with the Pacific ring of fire being the surface expression of the boundary between them. The African domain contains continental materials brought down by subduction systems, while the Pacific domain has been protected from such infiltration.
Researchers at the University of Helsinki have developed a tissue-engineered approach to stimulate myocardial regeneration in ischemic heart disease. The therapy uses autologous atrial appendage micrografts to improve functional recovery and preserve heart pumping function.
A study from the University of Georgia found that light to moderate drinking may preserve brain function in older adults. The study examined cognitive function over time among middle-aged and older adults in the US and found a correlation between light drinking and better cognitive performance.
Researchers found that activating specific receptors can induce synaptic plasticity without structural changes, challenging the long-held assumption about spine size and strength. The study provides a potential new avenue for treating Fragile X syndrome by targeting an unidentified protein promoting synapse shrinkage.
Researchers at the University of Nevada, Reno have engineered thale cress to improve water-use efficiency and salinity tolerance, a trait that can be applied to other plants to address future food shortages and climate change impacts.
A library of molecules with unique structural and chemical features have been identified to shut down the SARS-CoV-2 polymerase reaction, a key drug target for COVID-19. Five of these molecules are already FDA-approved for use in treating other viral infections.
A team of UConn engineers has developed a scaffold that generates a controllable electrical field to encourage bone growth, providing a new approach for treating serious injuries. The device uses non-toxic poly(L-lactic acid) polymer and remotely-controlled ultrasound to stimulate bone regeneration.
Researchers developed a new set of computational tools to identify cell-type specific methylation patterns, known as molecular barcodes, in complex cell mixtures. These new methods can distinguish between different cell types in tissues made up of multiple cell types.