A new study found that native species in southwestern Washington floodplains adapt to bullfrogs and sunfish by changing their feeding strategies. The researchers analyzed carbon and nitrogen stable isotopes in predators and prey to understand food webs, finding that some species shifted towards more abundant food sources.
Two projects aim to develop novel acaricides and vaccines against cattle fever ticks, a growing threat to the US cattle industry. The grants seek to protect Texas cattle from deadly diseases like bovine babesiosis and anaplasmosis.
A NIH-funded study found that patients with retinal vein occlusion experience significant visual acuity gains, but require long-term monitoring and treatment. After five years, many participants retained an average of three lines of improvement in their visual acuity.
A recent study by Japanese researchers found that Staphylococcus argenteus, a bacterial organism causing food poisoning, was present in 13.9% of tested chicken samples. The study also revealed cross-contamination among retail foods and slaughterhouses, suggesting a potential link between the two.
Researchers have created a new solvothermal method to produce single-crystalline titanium dioxide nanoparticles that can enhance the scalability of perovskite solar cells. The resulting cells demonstrated improved power-conversion efficiency and operational stability, with values reaching up to 24.05% and 84.7% fill factor.
Researchers at Brigham and Women's Hospital discovered two mediators of fibrosis, KLF10 and IL-9, which could be potential therapeutic targets. Injection of mice with IL-9 neutralizing antibodies reversed fibrosis and prevented organ dysfunction.
Researchers at Sandia National Laboratories have explored the physical properties of cycloalkanes, finding they may reduce condensation trail formation and soot emissions compared to current fuels. This could lead to a significant reduction in carbon dioxide emissions and mitigate climate change impacts on global security.
A study published in Scientific Reports found that shelter dog hair cortisol levels increased by one-third after six weeks in the shelter, indicating elevated stress. After adoption, cortisol levels decreased, returning to pre-shelter values. The results suggest that even well-managed shelters can cause stress in dogs.
The Endocrine Society's scientific statement highlights the potential of extracellular vesicles in diagnosing and monitoring endocrine-related conditions, including cancer. These tiny vesicles may also serve as biomarkers for high blood pressure and have therapeutic roles.
Firearm-related deaths have surpassed car accidents as the leading cause of death among children under 19, with a widening racial gap. Secure gun storage counseling and hospital-based violence intervention programs show promise for prevention and reduction of all three categories of gun violence.
Researchers developed a live imaging system to observe collagen synthesis in fibroblasts, revealing the intracellular processing and transportation of collagen fibers. The study found that this step controls the speed of collagen synthesis, providing a new understanding of collagen production.
Researchers argue that restrictive policies are outdated and unfair, suggesting new legislation to facilitate direct contact between donor families and organ recipients. The team cites examples of provinces like British Columbia and Nova Scotia, which have mechanisms in place for mediating direct contact.
New research suggests that stricter pandemic policy measures are associated with poorer mental health outcomes and lower life evaluations. Eliminator countries experienced fewer deaths and better mental health trends compared to mitigator countries.
Researchers have identified a new signaling pathway of blood clotting and demonstrated how it can be experimentally inhibited to reduce the risk of thrombosis. By targeting platelet-derived CXCL12, the approach may offer additional benefits without increasing the risk of bleeding.
A study suggests that intense exercise can help rats resist cues for high-fat food pellets, even after a 30-day diet. The researchers found that exercise modulated the rats' willingness to work for these cues, reflecting their craving level.
Scientists at NUI Galway found that smaller scorpion species with smaller pincers have more potent venoms compared to larger species. This contradicts Indiana Jones' theory that bigger is better when it comes to scorpions.
Scientists developed a new porous coordination polymer that can store and release acetylene, a highly flammable industrial gas, without using solvents. The material allows for the storage of large quantities of acetylene at pressures below 2 bar.
A large cohort study of almost 125,000 patients found that diabetic foot ulcer outcomes are associated with race, ethnicity, and rurality. Higher rates were observed among rural and Black patients, highlighting the need for targeted interventions to address health disparities.
A new study finds that generalist stores experience a 3% decline in organic product sales after an organic specialist store enters the market. However, this impact can be mitigated by increasing organic product variety, focusing on premium products, and adopting an organic specialist brand.
Research suggests that ecotourists' sugar-fed wildlife interactions are causing northern Bahamian rock iguanas to develop high blood sugar levels. The study found that iguanas on islands frequently visited by tourists had higher glucose peaks and difficulty regulating their blood sugar.
The pandemic significantly increased study burnout among university students, with engagement in studies dropping to its lowest level in late 2020. The conflict between demands and resources was a central factor, while basic psychological needs such as autonomy, relatedness, and competence played a crucial role in student wellbeing.
Researchers developed a new decision-support tool to optimize ship channel dredging and disposal activities, considering factors like navigability condition deterioration and economic values. The algorithm weighs input from local professionals and projects costs with interest and inflation included.
Researchers from the University of Tsukuba and Hiroshima University investigated ternary polymer solar cells to understand why adding an extra ingredient improves their performance. They found that the acceptor molecule ITIC enhances the orientation of polymer molecules, reducing charge accumulation and increasing stability.
Researchers successfully synthesized a novel nitride with hexazine rings, a dianionic compound, for the first time in a laboratory experiment. The nitride remained stable under pressures as low as 20 GPa, paving the way for potential high-energy density materials.
Würzburg physicists have developed microdrones that can be precisely controlled on a surface using light-driven nanomotors. The drones consist of polymer discs with up to four independently addressable nanomotors, enabling efficient propulsion and control in aqueous environments.
A new study found that the release of oxytocin is linked to increased kindness and life satisfaction, with participants showing more generous behavior and empathy as they aged. The findings support religious philosophies on the importance of helping others in enhancing life satisfaction.
Researchers have synthesized K2N6, an exotic compound containing nitrogen groups and packing explosive amounts of energy. The new material has a hexagonal structure with intermediate single and double bonds between nitrogen atoms.
A new study by University of Waterloo researchers highlights the need for a multi-faceted approach to prevent infections from becoming harder to treat due to antimicrobial resistance.
Researchers at the University of Kansas discovered that microalgae-produced diatoms played a crucial role in preserving ancient spider fossils at Aix-en-Provence. The unique chemical process, similar to industrial vulcanization, stabilized carbon-based exoskeletons and promoted sulfurization, resulting in exceptional fossil preservation.
Scientists at DGIST have developed a flexible, stretchable material that lights up brightly when stretched or subjected to an electric field. The new material overcomes design issues in existing devices, offering improved luminescence and potential applications in interactive skin displays and soft robotics.
Researchers at Gwangju Institute of Science and Technology (GIST) have developed a new technique to easily visualize viruses using an optical microscope, called the Gires-Tournois immunoassay platform. The platform uses 'slow light' technology to detect coronavirus particles by slowing down light that gets reflected around them.
A large-scale analysis of over 12,000 cancers identifies new, rare mutational signatures that can enhance personalized cancer treatments and diagnoses. The study reveals a complex landscape of genetic mutations in cancer genomes.
A longer interval between COVID-19 vaccine doses can significantly increase antibody production in naive individuals, with effects observed in younger participants. However, the impact of dosing interval on antibody levels in those with previous infection is minimal.
A team of researchers has made a large collection of coffee samples' NMR data freely available to assess the variety under which coffee is sold. The dataset can be interactively explored using software called NMRium-browser, allowing users to visualize the molecular structure of coffee beans from different origins.
Researchers found a 1000-fold increase in skin microbiota and larger lesions after smallpox vaccination, but all groups had equal protection from re-infection. The study suggests that manipulating commensal skin microbiota might enhance the efficacy of intradermal vaccines.
A Swedish study found that children with migration backgrounds are less likely to receive recommended psychiatric diagnoses and treatments for conditions like ADHD and depression. They were 40% less likely to receive certain diagnoses and 30% less likely to receive psychotherapy or ADHD drugs.
Researchers found that tumor cells use endosomal sorting complexes required for transport (ESCRT) proteins to resist T cell attack and survive cell death. Inhibiting ESCRT activity in cancer-derived cells makes them more susceptible to CTL killing, providing new insights into cancer immunotherapy.
Tiny zircons found in South Africa hold the oldest evidence of subduction, a key element of plate tectonics, dating back to around 3.8 billion years ago. This discovery provides new insights into when plate tectonics was set in motion and how it may have shaped Earth's surface and climate.
New research from Washington University in St. Louis shows that crows and ravens' diverse traits enabled their rapid global expansion. Their intelligence allowed them to adapt to new environments, while their big bodies gave them a competitive advantage.
A study by KyotoU scientists has discovered a significant relationship between volcanic activity and seismic faults. The research team found that the 2016 Kumamoto earthquakes were triggered by the eruption of Mount Aso, which caused a shift in the fault's movement pattern.
A new study published in Stroke Journal Report found that about one third of people treated with mechanical clot removal resumed work three months after stroke treatment. Women were half as likely to return to work compared to men, despite having more favorable characteristics for return to work.
A severe rainstorm over Kauai in April 2018 resulted in $180 million in damage and 532 homes destroyed. The study found that supercell thunderstorms triggered the deluge, which set a new US 24-hour rainfall record of nearly 50 inches.
A new technique uses air lasing and coherent Raman spectroscopy to detect greenhouse gases with high sensitivity and multi-component measurement capabilities. The detection reaches a level of 0.03% and can distinguish between CO2 isotopes.
A recent study found that children living in areas with tree cover had better early childhood development than those in areas with grass or paved surfaces. The research also showed that tree-filled spaces mitigate air pollution, noise, and heat better than more open green spaces.
A research team from City University of Hong Kong and Imperial College London developed a new strategy for highly efficient and stable perovskite solar cells using ferrocene molecules. The breakthrough invention can achieve efficiency of up to 25% while maintaining stability, making it a promising alternative to silicon solar cells.
Researchers found that physicians working in physician-owned practices were significantly more satisfied with their EHRs, citing staff support for documentation and appropriate time spent on documentation. These differences partially explained the disparity in EHR satisfaction between solo and non-solo practices.
A study by the Diverfarming project found that long-term compost application improved soil bacterial community complexity and communication, increasing nitrogen fixing potential and reducing emissions. This highlights the importance of using compost in sustainable agriculture, which can reduce fertilizer and pesticide use and create mo...
A study published in the American Journal of Cardiology found that measuring intramuscular fat in thigh muscles can predict cardiovascular health outcomes in heart failure patients. Patients with lower intramuscular fat had higher grip strength and were less likely to be hospitalized.
A major new study reveals that family background in UK children still significantly impacts their educational achievements at primary school level, just like nearly a century ago. The achievement gap between children from impoverished and privileged backgrounds remains stagnant, accounting for half a grade difference.
Researchers found that NSAID use negates the bone-protective effects of bisphosphonate clodronate on preventing osteoporotic fractures. The study suggests caution in extrapolating these data to more widely used bisphosphonates, as concomitant usage may lead to reduced fracture risk.
Researchers found a simulated annual downward trend in surface PM10 concentrations in Senegal and Cabo Verde after the 1980s. However, there was an increase in dust over the Western Sahara transported to Cabo Verde, suggesting Eastern Atlantic dust continued on toward the U.S. and Caribbean.
Researchers at Indian Institute of Science (IISc) have developed a method to make bricks out of Martian soil using bacteria and urea. These 'space bricks' can be used for building-like structures on Mars, reducing porosity and increasing strength. The team plans to study the effect of Mars' atmosphere and low gravity on the bricks.
Scientists at Johns Hopkins Medicine have successfully cultivated human muscle stem cells capable of renewing themselves and repairing muscle tissue damage in mice. The self-renewing stem cells were created by reprogramming laboratory-grown human skin cells, which then differentiated into specific cell types using a nutrient-rich broth.
Researchers at the Lewis Katz School of Medicine defined 11 subsets of cells found in esophageal tissue using single cell gene-expression profiling. This study could help clinicians diagnose or treat certain types of cancer by identifying functional cell types contributing to cancer progression.
A new study finds that people with faster accumulation of cardiovascular risk factors have an increased risk of developing Alzheimer's disease dementia or vascular dementia compared to those with stable risk factors. Researchers suggest earlier interventions could be effective in preventing further memory decline.
Researchers at Einstein Aging Study are investigating how social forces contribute to inequalities in cognitive health, particularly among Black and Hispanic Americans. The new grant will enable the tracking of over 700 Bronx adults with mobile technology to measure cognition directly as they engage in everyday activities.
Researchers at Charité - Universitätsmedizin Berlin have discovered a novel mechanism that restricts cell division in healthy stomach tissue, protecting against cancerous changes. However, Helicobacter pylori infection deactivates this mechanism, enabling cells to grow uncontrollably and increasing the risk of stomach cancer.
The UK National Osteoporosis Guideline Group has published a new guideline for the prevention and treatment of osteoporosis, which includes updated recommendations for vertebral fracture detection and anabolic treatment options. The guidance aims to improve service provision in both primary and secondary care settings.
A new study published in Proceedings of the National Academy of Sciences found that mice with different gut microbiomes choose different diets, influenced by substances produced by microbes. The researchers suggest that certain molecules, such as tryptophan, may be hijacking the body's natural signals to promote specific food cravings.
A Northwestern University astrophysics team proposes that fast blue optical transients (FBOTs) originate from the cocoons of jets launched by dying stars. The new model, fully consistent with all FBOT observations, suggests that as the jet pushes the cocoon outward, it cools and releases heat, emitting an observed FBOT emission.