Scientists create 'molecular cap' that prevents amyloid fiber formation, a key process in both Alzheimer's disease and HIV transmission. The breakthrough brings hope for delaying Alzheimer's onset and preventing sexual transmission of HIV.
Groundwater pollution is a significant issue worldwide due to increasing water consumption and waste disposal. Computer algorithms can help identify pollution sources by processing available data, such as pollutant concentrations and monitoring data.
A team of researchers from Brown University has developed a new technique using gold nanoparticles to detect liver cancer at early stages. The approach uses X-ray scatter imaging to spot tumor-like masses as small as 5 millimeters, which is significantly smaller than the current detection limit of about 5 centimeters.
Heavy rainfall is expected in southern Taiwan, Fujian and Guangdong provinces, and Hainan Island as Tropical Depression Haima nears Hong Kong. NASA's AIRS instrument captures strong rain-making thunderstorms on the storm's southern quadrant, indicating very high, cold cloud tops and likely heavy rainfall.
Two studies reveal individual neurons control synaptic vesicle recycling speed, with variations across different neurons. This finding refines neuroscience's understanding of neurotransmission at the synaptic gap between brain cells.
Researchers found that job satisfaction and emotional well-being are better predictors of turnover in long-term care facilities. Certified nursing assistants were more likely to switch jobs due to lower emotional distress and greater job satisfaction after switching, even if it meant taking a pay cut.
A decade-long study of apex predators in the Pacific Ocean has found that biological 'hotspots' are essential for the survival of many species. Upwelling areas, triggered by wind-driven mixing, create nutrient-rich waters that support a wide range of marine life.
The Genome Wowser app allows researchers to navigate the human genome using an intuitive interface on an iPad. The app provides interactive tools for exploring genomic information, including annotations, zooming capabilities, and drag-and-swipe navigation.
Brookhaven National Laboratory has won two R&D 100 Awards for its innovative imaging devices that enhance x-ray fluorescence techniques and multimodal optical nanoprobe technology. These advancements enable researchers to study materials with greater depth and coverage, reducing experimental time by hours.
The CSIRO website provides easy access to greenhouse gas data measured in the Southern Hemisphere atmosphere for the past 35 years. Key findings include a record-high level of carbon dioxide, increasing at about 0.5% each year, and an almost 40% increase over the past century largely due to human activities.
Researchers found that women can more accurately identify straight vs gay men's faces near peak ovulation, with mating goals enhancing accuracy further.
Researchers at Yale and Cambridge found that birds' plumage colors only represent a fraction of the colors they're capable of seeing, thanks to additional UV-sensitive cones. The study suggests that structural colors produce most of the color diversity in bird feathers, with limitations preventing them from creating certain colors.
Researchers analyzed over 5,000 children in rural Nepal to assess the impact of early-life vitamin A supplements on asthma development. The study found no difference in asthma risk or lung function between children receiving supplements and those not receiving them.
Neurobiologists have found that the fly brain requires only two distinct motion detectors to recognize movement, shedding light on the complexity of visual processing in both humans and insects. This discovery has implications for our own understanding of how we perceive motion.
Experiments tested sweetpotato whitefly preference for cucumber seedlings grown under fluorescent lamps with high red:far red ratio or metal-halide lamps. The results showed that FL seedlings were less attractive to the whiteflies and had higher chlorophyll content and thicker leaves than ML seedlings.
Researchers have discovered that both types of polycythemia, previously thought to require different treatments, can be effectively treated with JAK2 inhibitors. This finding offers new hope for patients with Chuvash polycythemia, a disease affecting only a small number of people worldwide.
The Journal of Dairy Science Most Cited Awards recognize contributors whose work significantly impacts research and the dairy industry. The awards were given to authors of the top-cited papers in four sections: Dairy Foods, Physiology and Management, Nutrition, Feeding and Calves, and Genetics and Breeding.
A new study led by the University of Heidelberg and involving the University of Colorado Boulder has found strong evidence for a large-scale, subterranean saltwater ocean on Enceladus. The research suggests that the plumes shooting water vapor and ice particles into space originate from an ocean beneath the icy surface of the moon.
Researchers identified a rare O104:H4 strain that combined Shiga toxin-producing ability with enteroaggregative E. coli adherence, explaining its high virulence and unusually severe HUS cases. The strain also showed extended-spectrum ß-lactamase resistance, making it resistant to penicillins but susceptible to carbapenems.
Researchers developed a novel approach to cancer therapy by creating a drug that inhibits the mobility of cancer-promoting proteins within cells. The treatment uses a 'glue' molecule that binds to these proteins, forcing them to the cell membrane and making cancer cells more vulnerable to chemotherapy.
Researchers used a long-armed robot to track the fate of over 2000 baker's yeast populations for many generations, observing evolutionary rescue and adaptation to environmental stress. The study found that slow environmental deterioration and previous contact with other populations can increase the likelihood of survival.
A study by American Society for Horticultural Science found that a 1-inch topdressing depth applied over 2 years improves turfgrass cover, shoot density, and divot resistance. Topdressing rates above 4 inches accumulate over time may compromise surface strength.
A new Northwestern Medicine study finds that attending physicians in intensive care units can reduce mortality rates by 50% when using a checklist and prompted to address overlooked details. The prompting system cut ventilator-associated pneumonia cases and reduced ICU length of stay.
A team of MIT math instructors has developed a web-based tool, the Educational Collaboration Space (ECS), to facilitate peer-to-peer collaboration among educators. The platform aims to preserve 'best practices' in teaching and learning, allowing teachers to share strategies and resources.
A recent study published in Phytopathology reveals that fungicide applications on corn are unlikely to produce yield increases unless fungal diseases are present. Farmers should weigh the cost of treatments against potential benefits and consider the price of corn when making decisions.
A decade-long study of Pacific Ocean predators reveals the California Current as a vital habitat with predictable seasonal patterns, attracting an array of marine life. The study shows that many species return to specific regions with astonishing fidelity, using internal cues to navigate.
Researchers discovered a molecular link between pesticides and Parkinson's disease, shedding light on the oxidative stress that contributes to the neurodegenerative disorder. The study provides evidence that exposure to environmental toxins may be a primary cause of Parkinson's, with potential implications for prevention and treatment.
Researchers found that mice on high-fat diets who received extra leucine showed improved glucose tolerance and insulin sensitivity. Adding leucine to the diet improved metabolic health in animals with prediabetes or metabolic syndrome.
A new study reveals that bird plumage coloration falls short of filling the colour space, leaving vast regions unoccupied. Despite having an additional color cone sensitive to ultraviolet light, birds can only produce a subset of colors theoretically visible to other birds.
A small study found PCI to be safe in patients with significant CAD who were referred for liver transplantation. The procedure was successfully performed in 94% of patients, and all remained clinically stable at one month following the intervention.
Researchers from Monash University and international partners have developed a potential new malaria drug candidate targeting dihydroorotate dehydrogenase enzyme. The team's work has been hailed as significant in combating malaria, which kills up to one million people annually worldwide.
A recent Yale study examining the rise in cesarean births found that a significant proportion of the increase was due to slow progress in labor and fetal heart rate concerns. The researchers also discovered that suspected large infants, twin pregnancies, and preeclampsia contributed to the increase despite stable rates in the population.
A recent study found that cancer survivors have lower employment rates (8-9%) and work fewer hours (3-6 hours/week) compared to their peers without a history of cancer. The researchers suggest that the findings may be attributed to factors such as changing priorities, employment discrimination, or inadequate workplace accommodations.
A ban on fisheries discards in the North Sea is expected to promote fish stock recovery and increase fishermen's incomes, according to new research. The study compared long-term data sets on cod, haddock, saithe, and herring in the North Sea with those in Norwegian waters, where a discard ban was introduced in the late 1980s.
Researchers at Purdue University found that rats consuming fat substitutes gained weight and developed more fatty tissue compared to those on a regular high-fat diet. The study suggests that using fat substitutes as part of a long-term weight loss strategy may not be effective due to disrupted taste-calorie relations.
A new international study links city living to increased stress responses in the amygdala and activity in the cingulate cortex. The findings suggest that different brain regions respond to urban environment at various stages of life.
The University of Arizona has been awarded a multi-million dollar contract to polish a 4.2-meter primary mirror for the Advanced Technology Solar Telescope in Hawaii. The mirror will be the world's largest solar telescope, allowing researchers to study the sun in unprecedented detail.
A study by the University of Pittsburgh found that gay, lesbian, and bisexual youth experience higher rates of bullying, abuse, and missing school due to fear. They are also more likely to suffer from psychological problems, substance abuse, and other issues.
A recent study confirms that Cuban crocodiles in the wild are hybridizing with American crocodiles, posing a significant threat to the species' survival. This genetic interbreeding may lead to both replacement and genetic mixing, potentially causing the extinction of one lineage.
A multicenter study published in Catheterization and Cardiovascular Interventions found that elective unprotected left main coronary artery PCI with drug-eluting stents resulted in favorable outcomes for patients with normal left ventricular function, including low rates of cardiac death and target lesion revascularization. Patients ag...
An international team of scientists found that mutations in the SCN9A gene cause nerve cells to become hyperactive, leading to degeneration of nerve fibers and severe pain in patients with peripheral neuropathy. The discovery could lead to specific therapies for victims of this debilitating disorder.
Researchers develop multiferroic alloy that converts heat into electricity with no carbon dioxide emissions. The material can capture waste heat from various sources, including cars and industrial plants, to produce electricity.
Researchers developed a brief exam to identify frontal and temporal dysfunction in ALS patients, which can impact decision-making and treatment planning. The Penn State Brief Exam of Frontal and Temporal Dysfunction Syndromes (PSFTS) has been used in over 200 patients and is now standard care at the Medical Center.
A new drug telaprevir has been shown to offer a faster and stronger viral cure for hepatitis C than standard treatment, with 75% of patients cured compared to 44% on standard therapy. The study also found significant benefits in subgroups of patients who do not typically respond well to standard therapy.
A new study found that a protein called soluble amyloid precursor protein beta (sAPPβ) may be a more accurate predictor of Alzheimer's disease than existing biomarkers. The researchers discovered that sAPPβ levels were significantly higher in participants who developed the disease, with an average of 1,200 nanograms per milliliter.
A study of 37 families found that mothers who recorded their interactions with their young children revealed chaotic and often ineffective corporal punishment practices. The audio recordings, captured over six days, showed a wide range of reactions from children, including crying, tantrums, and whimpering.
The Hubble Space Telescope has captured the complex history of Pandora's Cluster, a giant galaxy cluster resulting from the simultaneous collision of four smaller clusters. The data reveal that dark matter dominates the cluster's mass, with gas making up only 5% of its total mass.
Tropical Storm Beatriz rapidly weakened after making landfall in Mexico's western mountains, transforming from a strong tropical storm to a weak tropical depression within six hours. The storm's remnants are now moving over cooler sea surface temperatures with a slim chance of regenerating due to sub-80°F waters.
Researchers at Yale University found that spontaneous brain activity in the womb plays a crucial role in shaping the visual system, challenging the idea that genes are the primary determinants of brain development.
A laboratory study found that vinyl chloride concentrations decreased over time, reaching zero after four months, suggesting degradation into ethene.
Routine weather events like rain and cooler days can impact US economy up to $485 billion per year. The study found finance, manufacturing, agriculture, and other sectors sensitive to changes in the weather.
A new vaccine to combat tuberculosis has been shown to be safe and effective, but its introduction into the childhood immunization schedule is complicated by concerns over immune response. The study's findings have important implications for designing the most effective immunisation schedules for children.
Women's bias against male strangers increases when they are fertile, suggesting genetic influence on prejudice, according to Michigan State University researchers. Fertile women exhibit more negative attitudes towards men of different races and social groups than their own group, particularly those perceived as physically threatening.
Research found that plant growth retardants had no effect on plant growth rate or stem length when used with a rice hull substrate, similar to a traditional peat and perlite mix. The study suggests that producers can employ PGR drench strategies without worrying about reduced efficacy due to the presence of rice hulls.
The IARC classified radiofrequency electromagnetic fields as possibly carcinogenic to humans based on studies that found a possible link between long-term mobile phone use and increased risk of brain tumors. Exposure limits were established, but the evidence is not yet conclusive.
Researchers have developed a new, non-invasive breath test to detect vitamin B12 deficiency, a growing public health problem. The test measures the amount of carbon dioxide exhaled after administering propionate, which is broken down by vitamin B12 in the body.
Researchers developed an economical method to detect groundwater in semi-arid hard rock areas by analyzing electrical conductivity logs. The approach revealed differences in subterranean rock fissures and correlated with regions of underground water. This technique may be useful for identifying the most abundant sources of groundwater.
A new theory suggests sepsis may be caused by leaking blood vessels, rather than just a symptom. This idea has the potential to lead to novel treatments and improve patient outcomes.
A Rush University Medical Center scientist is studying cinnamon's effects on multiple sclerosis, a disease that attacks the central nervous system. The research aims to understand how cinnamon's anti-inflammatory property may counteract the disease process in mice.
Researchers use gravitational lensing to map dark matter distribution in the cluster, while NASA's Chandra X-ray Observatory observes hot gas. The study reveals a complex collision that separated out hot gas and dark matter, separating them from visible galaxies.