A recent study published in Neurology found that sleeping too little or too much can affect stroke risk differently based on race. Black men who slept less than six hours per night were less likely to have a stroke compared to average sleepers, while white men who slept nine or more hours a night had an increased risk of stroke.
Researchers found nutmeg residue on ceramic potsherds at a 3,500-year-old archaeological site in Indonesia. The discovery provides new insights into the early use of nutmeg and its impact on international trade.
Scientists have discovered new compounds in whole grains that may improve glucose metabolism and reduce the risk of type 2 diabetes. The findings suggest that a high intake of whole grains increases levels of betaine compounds, which are associated with improved glucose metabolism and lower post-meal glucose levels.
A $1 million grant will support research into tree chemical defenses against bark beetles, exploring mechanisms of tree death and susceptibility. The study will investigate tree responses to drought conditions and manipulate water availability in pinyon pine forests.
Researchers found that gas bubbles released during photosynthesis produce a 'ringing' sound, correlating with algal cover on coral reefs. This discovery may enable rapid and inexpensive estimation of algal abundance, a key indicator of stress on coral reefs.
Research suggests that women's reproductive health, hormones, and mental health play a crucial role in maintaining telomere length and slowing the aging process. Dr. Elissa Epel's presentation highlights the importance of estrogen's protective effects on telomeres and heart disease.
Researchers found that certain gut bacteria in European badgers kill off M. bovis, potentially reducing TB spillover to cattle. The bacteria also stimulate the badger's immune system, improving vaccine effectiveness.
According to Dr. Holly Pederson, genetic testing can help identify patients at risk of breast cancer and reduce their chances of survival. The presentation highlights the importance of early screening and advances in cancer genetics, making it possible to save lives through preventive medications and surgical procedures.
Researchers found that some frog species persist despite infection, attributed to eco-evolutionary rescue. This occurs when ecological and evolutionary mechanisms allow for host-pathogen coexistence, including immune adaptation and reduced transmission rates. The study provides a glimpse of hope for amphibian populations threatened by Bd.
Researchers from the University of Colorado School of Medicine have identified previously unknown genetic causes of mitochondrial diseases, including cardiomyopathy and excess acid in blood. The study found that mutations in specific genes caused lethal conditions, and increasing a nutritional compound improved cell function.
A first-of-its-kind study found that fathers' hormone levels around the birth of their children relate to their parenting down the road. Dads whose cortisol levels were elevated while holding their newborns on the day of birth were more likely to be involved in indirect care and play with their infants in the first months of life.
Researchers have developed a novel T cell bispecific antibody that guides immune cells to HER2-positive breast cancer cells, offering a targeted and safe approach. The therapy has shown promise in tackling certain breast cancers by exclusively targeting cancerous cells.
A recent study found that a new bacterial pathogen, Erwinia tracheiphila, emerged from the introduction of foreign crop plants to North America. The pathogen's genome shows dramatic changes, suggesting it has recently evolved as a pathogen, primarily affecting cucurbits grown in intensive monocultures.
A new study reveals that warmer springs in northern regions lead to reduced plant productivity in summer and autumn months. The team used satellite images to survey 41 million km2 of land and found that the early onset of spring does not continue into the summer, resulting in depleted water resources and reduced biomass.
Nephrologists and health policy experts advocate for greater transparency in joint-venture dialysis clinics to ensure patient referrals and clinical outcomes are not influenced by financial ties. The lack of disclosure poses a significant barrier to evidence-based research, depriving patients of critical information.
Engineers at UC San Diego create a super-hydrophobic surface that produces at least 50 millivolts when salt water flows over it, enabling new power sources for lab-on-a-chip platforms and microfluidics devices.
A new study finds that preindustrial fire emissions were stronger than previously believed, leading to an underestimated cooling effect on past climate. Fire-induced aerosol particles increased cloud brightness and reflected sunlight, offsetting warming from greenhouse gases.
Researchers have developed artificial pseudo-embryos from mouse stem cells that display characteristics of early embryonic development, including the formation of antero-posterior, dorso-ventral, and medio-lateral axes. These structures, called gastruloids, could complement animal embryos in studying mammalian embryonic development.
Researchers developed a patient priorities care approach to help older adults identify their health goals and preferences. The method involves structured conversations with facilitators who document the information in an electronic health record, enabling clinicians to align care with patients' priorities.
The BCG vaccine, used to prevent tuberculosis, can reduce blood sugar levels in people with advanced type 1 diabetes by mimicking microbial exposures. The vaccine appears to reset abnormal metabolic functions, boosting the immune system to consume sugar and reduce blood glucose levels over time.
Research from the University of Bath and London School of Economics found that business owners with above-average optimism earned 30% less than those with below-average optimism. Pessimistic entrepreneurs are more likely to avoid poor entrepreneurial projects, while optimistic ones may be misled into setting up failing businesses.
A new study found that cataract patients have a 29% increased risk of developing osteoporosis or fractures compared to healthy controls. Patients who underwent cataract surgery had a 42% lower risk of developing osteoporosis or fracture.
Researchers propose a simple chemical reaction network that yields power-law statistics with tunable exponents. This suggests bacteria can naturally generate power-law distributions in flagellar rotation intervals, making them more capable in solving searching tasks.
ICESat-2 successfully fired its laser for the first time, sending photons to measure Antarctic height and detecting small changes in planet's ice sheets, glaciers, and sea ice. The mission will continue with procedures to optimize the instrument, aiming to start getting excellent science-quality data within a month after launch.
Researchers successfully biofortified wheat to naturally increase its iron content, a process that could help address global iron deficiency. The breeding lines showed no significant decrease in grain yield, making it a promising solution for improving nutrition without compromising farmers' profits.
The University of Oklahoma Advanced Radar Research Center is developing a mobile radar testbed to address operational missions and increase public safety outcomes. The all-digital polarimetric phased array system will provide multiple radar modes, including weather monitoring and air traffic surveillance and control.
A systematic review of indoor tanning legislation found poor compliance with risk-reducing measures, including parental consent restrictions, protective eyewear, and warning labels. The study suggests that increased enforcement and better communication are needed to protect public health.
Leaf fossils of Lilly Pilly trees found in the Snowy Mountains suggest a warmer climate with no winter snow around 20 million years ago. The discovery provides insight into the region's past vegetation and climate, with implications for understanding Australia's future weather patterns.
Most industry-funded clinical trials show funder involvement in design, conduct, and reporting, raising questions about academic freedom and independence. Only a few trials were found to be independent, highlighting the need for accurate reporting of contributorship to ensure patient confidence in trial results.
Researchers found that 79% of insulin temperature logs contained deviations from the recommended range, with fridge storage being the biggest issue. This can lead to reduced potency and variability in dosing for people with diabetes, highlighting the need for proper storage and monitoring practices.
Astronomers have found the first compelling evidence for a moon outside our own Solar System, using data from the Hubble Space Telescope and Kepler Space Telescope. The exomoon, Kepler-1625b-i, is comparable in diameter to Neptune and orbits a gas giant planet at a distance similar to Earth's orbit around the Sun.
A large-scale genome analysis of over 10,000 TB pathogen strains has shown that genome sequencing can improve treatment and potentially replace traditional resistance testing. This method enables precise prediction of drug resistance and individualized treatment plans, saving resources and time.
NASA's Aqua satellite captured infrared data showing Hurricane Leslie's strongest thunderstorms were fragmented and circling the center at minus 63 degrees Fahrenheit. The National Hurricane Center forecasts the hurricane will remain within favorable environmental conditions, allowing it to strengthen further.
The study reveals that botanic soil amendments with popular weeds like black nightshade and jimsonweed can effectively control nematodes. Researchers report a significant reduction in female nematode populations when treated with weed extracts, making these natural alternatives a promising eco-friendly solution.
Researchers at IBM developed a new computer architecture with co-located memory and processing, significantly outperforming conventional computers. This brain-inspired design achieved 200 times faster performance in machine learning tasks.
Researchers at ITMO University have developed a high-precision laser for measuring the distance between the Earth and Moon, achieving an accuracy of just a few millimeters. The new laser will be used in the GLONASS navigation system, allowing for real-time correction of satellite coordinates and improved navigation capabilities.
Long-term testosterone supplementation has been linked to increased blood pressure in obese rats, raising concerns about its safety in certain populations. The study suggests that hormone therapy may not be beneficial for men with heart disease risk factors, highlighting the need for more research on complex effects of testosterone.
Astronomers at Columbia University have discovered a candidate exomoon orbiting a gas-giant planet 8,000 light-years away. The moon is estimated to be 1.5% the mass of its companion planet and lies within the star's habitable zone, where liquid water may exist on solid surfaces.
A new study from the University of California found that light therapy can alter circadian rhythms and sleep/wake cycles, leading to improved mood and sleep in perimenopausal women. This non-pharmacological treatment option may provide symptomatic relief for those struggling with depression and sleep problems.
A new study found that low vitamin D levels are associated with a 77% higher risk of death in community-dwelling Thai older men. The risk is significant only in diabetic males, suggesting cardiovascular disease may be the link.
Researchers discovered a common herbicide compound inhibits key enzyme in fungal species, preventing growth and proliferation of infections. The study offers hope for new treatments to combat drug-resistant fungal diseases.
A new study by researchers at the University of Pittsburgh School of Medicine suggests that experiences of sexual harassment and sexual assault could have a significant impact on the physical and mental health of midlife women. Women who were younger or more financially stressed were more likely to be harassed, and both sexual harassme...
Researchers at Columbia University have created the first flat lens capable of focusing a range of colors and polarizations to the same focal spot. The ultra-thin 'meta-lens' offers performance comparable to conventional lenses but with significantly reduced size and weight.
A new modular soft robotic arm enables deep-sea researchers to interact with delicate sea life without damaging them. The system features a glove-controlled arm that can flex and move with unprecedented dexterity, allowing scientists to explore understudied ocean environments.
Researchers observed transit timing variations in Kepler-1625b's HST-recorded transit, suggesting the presence of an exomoon. The moon would have caused a delay in the transit start time, which occurred nearly 80 minutes earlier than expected.
A study by University of Maryland researchers suggests that frog populations in El Copé developed the ability to tolerate chytrid fungus, enabling them to persist despite severe species losses. The findings, published in 2018, could mean good news for other hot spots of amphibian biodiversity hit hard by the chytrid fungus.
Researchers uncover evidence of ancient goiter and thyroid disease using science and art in a 2,000-year-old carved statue. The discovery challenges traditional theories about the statue's representation of achondroplasia, providing new insights into the health and diet of Native Americans.
Researchers have found a new source of high-energy photons in the cosmos: a microquasar located in our galaxy. The gamma rays emitted by this system are among the most energetic ever observed and were detected using the High-Altitude Water Cherenkov Gamma-Ray Observatory.
Researchers developed a glow-in-the-dark paper strip that can detect the presence of infectious diseases using antibodies in blood, offering a quick and affordable alternative to traditional lab tests. The test measures antibody concentration by analyzing blue-green light produced through bioluminescence.
Researchers found that songbird couples sing more and perform elaborate dances when an audience is present, suggesting loyalty and bonding are crucial for maintaining long-term relationships. This study provides insights into complex communication signals in animals, including humans, that establish coupling relationships.
A new study compares interferential current to vaginal estradiol creme in treating sexual complaints of women with premature ovarian insufficiency taking hormones. Interferential current improves lubrication, pain, orgasm, and overall satisfaction.
Research found that learning about sex in school significantly reduces the expected number of times with a prostitute. Men from specific groups, such as those traveling abroad or living in London, are more likely to engage in prostitution.
The GPM core satellite measured rainfall rates within Typhoon Kong-Rey, revealing powerful storms in the northeastern eyewall producing over 1.4 inches of rain per hour. The Joint Typhoon Warning Center reports the storm is moving north-northwest towards Okinawa and Japan.
The oldest well-dated specialized bone tool associated with the Aterian culture of the Middle Stone Age has been discovered in Morocco, dating back approximately 90,000 years. The tool's origins and manufacture are distinct from similar-aged sub-Saharan artefacts, suggesting a unique technological industry in North Africa.
A research team at Chalmers University of Technology has developed an emissions-free energy system that can store solar energy in a liquid form for up to 18 years. The system uses a specially designed molecule that captures energy from sunlight and releases it when needed, warming the liquid by 63 degrees Celsius.
Treating community dogs with systemic insecticides can significantly reduce visceral leishmaniasis transmission in Brazil. A mathematical model estimated that 70% of community dogs need to be treated with an 80% effective insecticide for six months to halve the number of cases.
A study published in Journal of Bone and Mineral Research found that 8.3% of patients with total hip replacements experienced atypical femoral fractures, a type of rare stress fracture. The researchers also discovered a strong association between bisphosphonate use and the risk of these fractures.
Hurricane Walaka is intensifying as a category 4 storm, with cloud top temperatures indicating strong thunderstorms capable of heavy rain. The hurricane is expected to turn toward the north-northeast with a faster forward motion, bringing powerful winds and potential weakening.
A study by UIC researchers found that long-term exposure to periodontal disease bacteria causes inflammation and degeneration of brain neurons similar to Alzheimer's disease. Chronic infection leads to neural effects, including senile plaque formation and brain inflammation.
A recent grant from the National Institute of Dental and Craniofacial Research will support a study characterizing the oral microbiome in children with HIV infection. The study aims to understand how HIV affects tooth decay, with potential applications for personalized medicine and improved prevention strategies.