Researchers David Merritt and Ron Ekers developed a mathematical model suggesting that supermassive black holes merge when their host galaxies collide. The model demonstrates the realignment of larger black holes, resulting in sudden changes in jet direction, which can be observed as X-shaped patterns in galaxy images.
A recent brain mapping experiment provides significant new support for the theory that attention is the glue that cements visual information together, helping to solve the 'binding problem' in neuroscience. The study found increased activity in the parietal region when individuals were presented with multiple objects at once.
A UCLA study found that treating more people in developing countries with antiretroviral drug therapy can eliminate HIV on a community level, even without eradicating it in individuals. The research suggests that treatment and prevention are not two separate approaches, but rather intertwined strategies to save lives.
Researchers have discovered a gene associated with both macular degeneration and retinitis pigmentosa, two eye diseases affecting different segments of vision. The RPGR gene is linked to early-onset macular degeneration primarily affecting males.
A genetic variation in monoamine oxidase A (MAO A) enzyme may protect maltreated children against antisocial behavior, with a ninefold increased risk of aggression in those with low enzyme activity. In contrast, higher MAO A levels were associated with trauma resistance and reduced behavior problems.
A study by University of Minnesota researchers found that morphine activates the MAPK signaling pathway in human endothelial cells, promoting angiogenesis and tumor growth. The findings could lead to new treatments for managing cancer pain while minimizing tumor growth.
A team of scientists from Smithsonian and other institutions sequenced bird genetic material found in the 1917 collection, comparing it with the 1918 pandemic virus HA gene sequence. The comparison suggests that the pandemic viral HA gene was not derived directly from an avian source.
Diet-induced thermogenesis is an intricate system of communications masterminded by the brain that produces heat and helps prevent obesity. By removing beta adrenergic receptors, researchers found that mice fed a high-fat diet grew massively obese, highlighting the importance of this pathway in preventing weight gain.
Researchers identified a significant link between a specific gene variant and increased risk of antisocial behavior in maltreated children. The study found that individuals with a certain variation of the MAOA gene were more likely to develop behavioral problems, comparable to major risk factors for heart disease.
Researchers found that tirofiban and abciximab were equally effective in preventing longer-term events such as death, heart attacks, and repeat surgery after coronary-artery angioplasty. The study's conclusion was that while abciximab is more expensive, it provides little long-term advantage compared to tirofiban.
A year-long evaluation of hybrid buses in NYC's fleet found a 10% higher in-service fuel economy and 36% lower oxides of nitrogen emissions. However, maintenance costs were significantly higher due to the maturity level of the technology, but are expected to decrease as it advances.
A new genetic screening method has been developed to predict the behaviour of Wilms' tumour in children. Genes on chromosome 1q are overexpressed in tumours that relapse, suggesting that identifying subgroups at presentation could improve treatment outcomes.
Patients with post-stroke dementia are at an increased risk of death within two years, with a relative risk of mortality six-fold compared to those without dementia after stroke. Dementia is also associated with poorer survival rates and reduced treatment adherence due to medication non-compliance.
The Hartford Doctoral Fellows program aims to ensure a pool of trained and skilled geriatric social workers by recruiting, sustaining, and training talented doctoral students. The program is designed to produce tomorrow's social work faculty, with over 600,000 practicing social workers in the US requiring geriatric knowledge.
Researchers are conducting clinical trials to restore sexual desire in menopausal women using an investigational skin patch. Approximately 43% of women experience some form of difficulty in their sexual function, significantly higher than men.
Scientists have discovered a significant upward bulge at the equator and downward bulge at the poles in the Earth's gravity field. The observed changes are counteracting the gravitational effects of post-glacial rebound, leading researchers to investigate potential causes such as climate change or ocean circulation.
A study by the Institute for Operations Research and the Management Sciences found that young tech CEOs are more likely to invest in research and development, while older attorneys tend to be more conservative. The study suggests that CEO characteristics, such as background and tenure, have a significant impact on R&D spending.
Cancer biologists have successfully identified 21 potential cancer genes that collaborate with p27, a protein found in abnormally low levels in lymphomas and breast cancers. The study reveals new insights into the cellular pathways that distinguish one type of cancer from another.
Advanced sensors and communication platforms can monitor complex tropical environments to track elusive animals and study their behavior. Technologies like automated telemetry systems, high-quality sound recordings, and radiotransmitters are being developed to aid conservation efforts in the Amazon basin.
Researchers analyzed biomarker data from over 700 healthy men and 60 rhesus monkeys, finding lower body temperatures, blood insulin levels, and higher DHEAS levels in those on a calorically restricted diet were associated with longer lifespan. The study suggests potential for developing compounds that mimic the benefits of caloric rest...
A new study suggests that a burst of transpositional activity occurred at the same time humans and chimps diverged, implicating retroelements in the emergence of modern humans. The research found that ancient families of HERV elements may retain biological activity over long evolutionary times.
A new study finds that low-carbohydrate, high-protein diets may increase the risk of developing kidney stones and raising bone loss. Researchers observed a significant decrease in urinary citrate levels and an increase in acid excretion in subjects following these diets.
The latest muon g-2 measurement provides a unique and unusually sensitive test of the validity of the general theory of electromagnetism or, equivalently, the Standard Model of particle physics. The result confirms earlier measurements with twice the precision, making this new measurement a much more sensitive test of the Standard Model.
A new program, social problem-solving telephone partnerships (SPTP), uses phone calls to help family caregivers resolve challenges of caring for stroke survivors. The study found that caregivers who received SPTP improved significantly in their depression, emotional well-being, and mental health over four weeks.
A recent study found that dog collars fitted with deltamethrin resulted in a 42% reduction in transmission of zoonotic visceral leishmaniasis to children and a 54% drop in infection rates among dogs. This alternative control method is more practical and effective than current methods, such as dog culling and spraying insecticide.
Cornell researchers have found that a longer infusion time of boronophenylalanine is needed to effectively target cancer cells in brain tumors. The new finding has the potential to improve the success of boron neutron capture therapy, which has shown moderate success in treating tumors but struggles with aggressive cell clusters.
A study has identified a significant difference in brain tissue structure between individuals with persistent developmental stuttering and those with normal speech. The abnormality may develop during early language and speech acquisition, explaining how disturbed signal transmission affects speech production.
A new device produced high-energy electron beams to break down harmful organic molecules and kill bacteria such as anthrax, providing a more affordable alternative to existing technology. The Coupled Multiplier Accelerator (CMA) has been licensed for commercial use to treat contaminated water and food.
Researchers from the Max Planck Institute of Psychiatry found that the cannabinoid receptor is crucial for erasing fear behavior. In mouse models lacking this receptor, fear behavior evoked by an aversive acoustic sound was significantly reduced compared to normal control mice.