Researchers have developed a new method to probe the internal magnetic fields of red giant stars using asteroseismology. This technique involves analyzing variations in light emitted from a star as due to sound waves from its interior, revealing strong internal magnetic fields in these stars.
Young adults with a genetic risk of Alzheimer's disease showed reduced grid cell functioning and abnormal spatial navigation when navigating a virtual maze. This could be an early biomarker for the disease, suggesting that early intervention may be effective.
A new study identifies neurons that inhibit REM sleep and induce non-REM sleep in mice, revealing a complex relationship between the two stages of sleep. The discovery sheds light on the brain's mechanism for regulating sleep patterns.
Scientists have developed an artificial skin that can detect static objects using flexible organic circuits and specialized pressure sensors. The system translates static pressure into digital signals, which are then transferred to the brain cells of mice, offering a potential solution for people with prosthetic limbs to feel sensation
A new synthesis method for glucosepane, a molecule implicated in diseases such as diabetes, has been developed by researchers. This breakthrough allows for the production of glucosepane's various forms, which may help uncover its role in health complications and potential countermeasures.
Data from New Horizons' flyby of Pluto suggest the dwarf planet has been frequently resurfaced by erosion or crustal recycling. The study also reveals large regions of differing brightness on Pluto's surface, carved out by structures similar to terrestrial glaciers.
Researchers have successfully used the CRISPR-Cas9 system to eliminate porcine endogenous retroviruses (PERVs) from pig epithelial cells. The study found that PERV infectivity was reduced by up to a thousand fold, making genetically modified pigs for human transplantation a promising option.
A new study found that a math-based app significantly improved elementary school children's performance in just a few months. The app was especially helpful for children with math-anxious parents, who showed significant improvements in math abilities when using the app once a week.
A new study has identified a law for glacial erosion that captures variability in different climate zones. The results show that fast glaciers are more effective landscape gougers than slow-moving ones, explaining lower long-term erosion rates in Polar Regions.
Researchers have sequenced the full genome of an ancient African male skeleton, revealing significantly more Eurasian ancestry than previously thought. The study estimates that 4-7% of African genomes trace back to a Eurasian source, with gene flow reaching Central, West and Southern Africa.
The awards provide $50,000 grants to support research projects and leadership development for early-career women chemists. The program aims to address the 'polycarbonate ceiling' in STEM, where women face obstacles advancing their careers.
New data from Curiosity rover finds ancient lakes in Gale crater were stable for 100-10,000 years, providing insights into Mars' past water patterns and climate. The study suggests that the lakes could have supported life for extended periods, raising hopes for finding signs of life on the Red Planet.
Researchers used fossil data to analyze stability of ecological communities before and during the Permian-Triassic Extinction. The study found that locally stable webs increased while diversity richness declined. Stability was attributed to functional organization within species groups, not biodiversity loss.
A new material with extremely long polymer chains has been developed to reduce fuel misting and consequential explosiveness. The polymers can break apart when sheared during flow but reassemble into super-long chains needed to prevent misting, resulting in significant reductions in misting and explosiveness.
New evidence suggests that a massive asteroid collision with Earth triggered increased volcanic activity in the Deccan region of India. High-resolution argon dating revealed a dramatic increase in eruption rate within 50,000 years of the impact.
A new study has identified specific genes that are repressed after memory formation, providing insights into how long-term memories are formed. The researchers found that estrogen receptor alpha (ESR1) and Nrsn1 genes play a crucial role in modulating gene-regulatory networks after learning.
Shigeki Watanabe has developed a novel ultrafast technique called 'flash-and-freeze' to visualize nerve cell activity on a rapid time scale. The technique reveals that vesicle recycling in neurons occurs through two mechanisms, an ultrafast one and a slower clathrin-dependent process.
A new study finds that climate-related changes in flower diversity are causing a significant shortening of alpine bumble bees' tongues, making them poorly suited to feed from deep flowers they were adapted to. This loss of mutualism highlights how climate change can decouple well-established relationships between bees and plants.
New research questions prevailing theory on female genital cutting as a social norm, finding no correlation between community norms and cutting practices. Alternative forces like sexual fidelity benefits may sustain the practice, highlighting the need for more effective policy interventions.
Researchers have identified GATA4 as a key transcription factor that activates cellular senescence. This process is characterized by a pro-inflammatory response and the production of secreted inflammatory cytokines. The study reveals that GATA4 is normally suppressed by autophagy, but its accumulation promotes senescence.
Researchers analyzed deep sea coral samples to reveal that past carbon dioxide spikes occurred alongside high ocean circulation events. The findings suggest that excess carbon in the deep ocean was flushed out, releasing CO2 into the atmosphere.
A study of Inuit DNA reveals how their unique genetic makeup helps them thrive on a high-fat diet, with genes associated with fat metabolism, height and weight, and cholesterol playing key roles. The research suggests that the Inuit population has undergone significant adaptation to its extreme climate environment.
A recent study by Raymond Fisman et al. reveals that the wealthy and educated elite tend to be less fair-minded and more inclined towards efficiency when distributing resources. The research found that those who prefer efficiency are more likely to work in the corporate sector, which may contribute to the muted policy response to incre...
The true cost of coal usage is higher than expected due to government subsidies and environmental side effects, argues Ottmar Edenhofer. These subsidies not only divert funds away from other important uses but also discourage investments in low-carbon alternatives.
Scientists have developed a new ultra-thin invisibility cloak that can render small objects undetectable by rerouting incoming light waves. The cloak is designed with a reflective metasurface and light-scattering antennae, allowing it to conceal objects with sharp edges and peaks.
Targeted green industry policies offer concrete benefits to firms and households, spurring decarbonization trends. Effective sequence of policy implementation is key, with broad carbon taxes following initial targeted measures.
The Southern Ocean's carbon sink has renewed its strength, absorbing more atmospheric carbon dioxide over the past decade. This improvement is attributed to changes in sea surface temperature and dissolved inorganic carbon levels.
Researchers successfully synthesized a more immediate and potent precursor to the chemotherapy agent etoposide using genetically modified tobacco. The new compound outperforms podophyllotoxin, a slow-growing Himalayan plant-based ingredient, in treating various malignancies.
A new report by Eliezer Van Allen and colleagues found that melanoma patients who benefit from ipilimumab immunotherapy have unique tumor-produced antigens. The study suggests that predicting which patients will respond to the treatment may be challenging due to differences in molecular targets.
Researchers identified a mutation in Arabidopsis thaliana plants that allows them to break down the toxic and persistent explosive TNT. The MDHAR6-mutant plants exhibit enhanced shoot and root biomass when grown in TNT-treated soil, rendering TNT less toxic.
A new study reveals that the ratio of predator-to-prey biomass decreases as prey biomass increases in diverse ecosystems, including grasslands, forests, lakes, and oceans. The study analyzed tens of thousands of populations across 2,260 ecosystems globally, finding a consistent pattern of biomass scaling.
Exposure to bacteria particles and farm dust blunts inflammatory immune responses in children, protecting them from allergies. The protective effect is linked to the anti-inflammatory enzyme A20, which squashes pro-inflammatory molecule generation in lung epithelial cells.
Despite decades of economic isolation, Iranian scientists have made remarkable achievements through ingenuity and collaboration. New projects, such as the Iranian National Observatory, aim to reclaim the country's past astronomical glory and tackle pressing environmental issues like Lake Urmia's rapid decline.
A study on túngara frogs reveals the 'decoy' effect, where females choose less attractive mates over more appealing options when a third, inferior mate is introduced. This challenges rational choice models used in sexual selection theory and highlights the influence of context on mating decisions.
Research suggests tropical songbirds invest more resources in their offspring, leading to higher survival rates, whereas temperate species prioritize quantity over quality due to high mortality rates among young adults.
Researchers successfully replicated 95 of the original experiments but could only reproduce results in under half of the cases. The study's findings suggest that initial evidence strength is a key predictor of replication success, and that surprising effects are generally harder to replicate.
Researchers have improved Structured Illumination Microscopy (SIM) to achieve 62-nanometer resolution, reducing phototoxicity and improving imaging of proteins interacting. This breakthrough has provided new insights into cell processes, such as the role of actin in clathrin-mediated endocytosis.
A study using the Delphi Method assessed the bioweapons threat and potential misuse of scientific research by querying 59 experts. The results show significant disagreement among authorities, with differing opinions based on factors such as age and expertise.
A special issue of Science explores the impact of human-induced environmental changes on forests worldwide. The reviews highlight pressing issues such as forest fires, drought, and extinction, emphasizing the need for sustainable management practices, genetic engineering, and collaborative research.
A new study reveals that humans prey on adult species at rates up to 14 times higher than other predators, leading to widespread extinction and restructuring of food webs. This behavior alters observable traits in prey populations and transforms ecological interactions.
Researchers from the XENON Collaboration report on a search for dark matter using an underground detector in Italy. The results set limits on several types of dark matter candidates and provide new insights into the nature of dark energy.
Researchers successfully synthesized thebaine and hydrocodone in yeast, offering a novel microbial-based production process for opioids. The breakthrough could significantly reduce production time and potentially create a new source of pain relief worldwide.
The Gemini Planet Imager has made its first exoplanet discovery, revealing a planet that may be the lowest-mass exoplanet ever directly imaged. Weighing twice as much as Jupiter, this finding provides insights into how our solar system was formed and paves the way for further research.
A new study reveals that infant marmosets develop vocalizations influenced by cues from caregivers, suggesting a potential key to understanding human-like vocal development in primates. The research found a strong correlation between parental responses and the timing of the cries-to-phees transition.
Researchers argue that internal natural variability can overwhelm background warming, making temperature plateauing rates appear significant. The Pacific Decadal Oscillation and other factors contribute to these variations, which must be considered when developing climate change models.
Researchers analyzed copy number variation across 236 genomes from 125 populations to identify patterns of ancestry and genetic subpopulations. DNA deletions are more reflective of selection, while duplications highlight these variations.
A preclinical study found that a new Ebola vaccine, VSV-EBOV, provides complete protection against the disease when given 7 days before infection in macaques. The vaccine also induces a strong innate immune response, helping to limit virus replication and eventually clearing the virus.
A new model suggests that wealthy countries' ability to mitigate flood risks through investments will be unsustainable in the long term. As a result, they may experience similar flood risk levels as developing countries.
Researchers found a unique insight into megathrust earthquakes through GPS data and radar measurements. The study revealed a pulse-like rupture that occurred over six seconds, with an extremely fast rupture velocity of approximately 3.2km/s.
A preclinical randomized controlled trial was conducted to evaluate a potential stroke therapy that had shown promise in one mouse model but not another. The study found that the treatment's success may depend on the type and severity of the stroke, suggesting improved clinical trial design could have mitigated this issue.