A new UC study reveals that children inside school buses inhale significantly more exhaust pollutants than those outside, particularly among older buses. The researchers found that for every metric ton of pollution emitted by a school bus, kids on that bus inhale comparable or larger amounts of pollution.
ParksWatch's investigation reveals widespread, unregulated mahogany logging within the remote Alto Purús National Park in the Peruvian Amazon. The report exposes the illicit trade of this valuable timber species, which threatens its survival and ecosystem health.
The US exports nitrogen pollution beyond its borders, with most deposits found near their sources. The study estimates that the US loses track of nearly 6 million metric tons of nitrogen emissions each year, which are possibly transported to Western Europe.
Researchers have discovered that a meteorite traveling at a slower velocity than previously thought formed Meteor Crater. The study reveals that atmospheric drag slowed down the fragments, causing them to crumble and slow more, resulting in little to no melting of the surrounding rocks.
Research reveals that humans have a limited capacity for processing multiple variables simultaneously, with performance decreasing significantly as problem complexity rises. The study found that academics struggled to accurately solve problems involving four or more variables, often reporting feelings of information loss and confusion.
A study by Johns Hopkins Bloomberg School of Public Health found that Norovirus causes 65% of traveler's diarrhea in US visitors to Mexico and Guatemala. The researchers also discovered a higher rate of dual infections with E. coli, suggesting that these co-infections may be more common than previously thought.
Scientists have detected over 50 gamma-ray flashes per day, with energies comparable to those emitted by black holes and neutron stars. The exact mechanism behind these bursts remains uncertain, but researchers suspect it involves lightning discharges and electric fields in the upper atmosphere.
Researchers found that when individual insects were removed from their groups, they suffered high mortality rates due to predation. In contrast, group-traveling insects remained relatively safe, suggesting that band formation provides a protective advantage.
The Forward Resuscitative Surgery System (FRSS) improved treatment times for critically injured Marines, with median arrival times of one hour. The system also reduced casualty rates compared to previous conflicts, thanks to its rapid access to surgical care.
A study of 38,156 participants found that heavy drinking is associated with a 42% higher risk of ischemic stroke. Moderate drinking patterns, defined as three to four days per week, were linked to a modest 32% lower stroke risk than nondrinkers.
Researchers found that dreams up to a week after a memorable emotional event often reflect problem resolution and positive emotions. This suggests that dreams can serve as a treatment for working through personal difficulties.
The international Argo program has reached a milestone with 1,500 ocean-traveling float instruments now operating, providing valuable data on climate and weather phenomena. This coverage represents half of the target 3,000-float array, enabling scientists to monitor the planet's oceans and gain insights into ocean processes.
A team of mathematicians, led by University of Georgia Professor Dino Lorenzini, have solved a four-decade-old math problem involving groups A and B. They demonstrated that the number of elements in group B is always a perfect square under certain conditions.
The National Institutes of Health (NIH) has awarded over $8 million to seven science education partnership awards to improve science literacy among minority students. The programs focus on elementary education initiatives, Web-based games, and museum exhibitions to reduce obesity and diabetes, as well as promote biomedical careers.
Researchers have discovered that morphogen molecules move across cells via diffusion, a finding that could lead to new strategies for treating organ defects and cancers. The study used the fruit fly model to demonstrate how TGF beta family molecules function as morphogens.
Scientists have successfully slowed down the group velocity of light in semiconductors, achieving speeds of about 6 miles per second. This breakthrough could lead to faster optical networks and higher performance communications, enabling applications like 3-D graphics transmission and high-resolution video conferencing.
Researchers have designed a traveling-wave engine that converts 18% of heat source energy into electricity, outperforming current thermoelectric devices. The device's high reliability and efficient energy conversion make it suitable for deep space probes.
The study characterizes lymphocyte microvilli, dynamic structures that alternate between assembly and disassembly. Disrupting these receptors could lead to a less toxic form of immune suppression and prevent metastasis in cancer cells.
The fellowship program, supported by the Burroughs Wellcome Fund, provides a unique opportunity for science writers to gain in-depth knowledge and network with top scientists. The program includes transportation, accommodation, and meal costs, as well as a personal mentor.
The Cluster mission has found a new way for charged particles from the solar wind to enter Earth's magnetosphere, using giant vortices called non-linear Kelvin-Helmholtz waves. These vortices can carry particles inside the magnetosphere, potentially explaining the presence of hot plasma stored in the tail of Earth's magnetic field.
Cardiovascular patients who have undergone re-vascularization procedures tend to live longer and have a better quality of life, according to the study. The guidelines provide recommendations for pre-travel preparation, including medication management and airline security protocols.
The American College of Physicians shares tips on safe air travel for heart patients, the efficacy of antibiotics in treating Gulf War illnesses, and the impact of living wills on hospital deaths. The ACP also introduces a nine-item pretravel checklist for cardiovascular disease.
The National Highway Traffic Safety Administration (NHTSA) has adopted a new NIST standard for across-the-road radar systems, which can detect vehicles traveling above a predetermined speed without requiring an operator. These systems are more reliable and less prone to being detected by speeders, providing enhanced safety for motorists.
A mobile testing van was introduced in Zimbabwe's Epworth and Seke areas, offering free rapid HIV tests with same-day results. The initiative reduced structural barriers by providing convenient access to testing and increased acceptance of rapid tests due to same-day results.
Researchers at Vollum Institute found that dopamine molecules are released from midbrain nerve cells in a targeted manner, traveling to receptors within milliseconds. The study's findings suggest new therapeutic targets for Parkinson's disease and substance abuse.
Physicists from a global team at Boston University have discovered neutrino oscillation and mass, modifying the Standard Model. The findings show a prominent dip in atmospheric neutrino data consistent with the theory of neutrino mixing.
Scientists Mas and Dietsch examined publicly available criteria for shade-grown coffee certification programs, finding that some distinguish farms with beneficial levels of shade for biodiversity conservation. The study suggests setting specific realistic conservation goals based on habitat use and forest fragment protection.
Researchers at Stevens Institute of Technology have successfully demonstrated a new method for controlling light with light, using near-infrared and mid-infrared lasers. This breakthrough has significant implications for secure, all-optical transmission of voice and data, overcoming limitations of current near-infrared technology.
The exhibition features 12 thematic stations celebrating diversity in fields like genetic research, fashion, and environmental understanding, highlighting the impact of women chemists on our daily lives. Featured chemists include Marie Meurdrac and Susan Solomon.
Kenneth Baldwin will lead a $2.5 million NASA program to develop exercise programs for astronauts, addressing physical impacts of space travel. The research aims to enhance the new NASA Space Exploration Initiative, enabling humans to work for months on the International Space Station and potentially send humans to Mars.
A randomized study shows rifaximin to be highly effective in preventing all forms of diarrhea and intestinal symptoms in healthy adults traveling to high-risk areas. The medication was also found to prevent chronic diarrhea and irritable bowel syndrome in some individuals, making it a promising treatment for travelers.
A study of 819 early adolescents found that unsupervised out-of-home care and lack of parental monitoring predict increased problem behaviors. In contrast, consistent adult supervision and community engagement appear protective against these issues.
A study found that parents' close relationships with their children and efforts to monitor their behavior can help prevent adolescents from engaging in substance use and delinquent activities. Parental control was also a strong predictor of lower levels of problem behavior, regardless of the level of knowledge gained through monitoring.
Scientists use NASA satellites and balloon-borne sensors to track the movement of a pollution train traveling from the Indian Ocean to the South Atlantic. The study reveals that Asian pollution can flow southward, get caught up in clouds, and reach as far as Brazil.
A study published in Journal of Biology reveals that young dolphins adopt an ideal position to get a 'free ride' in their mother's slipstream, reducing energy required for swimming. This drafting phenomenon helps the calf stay with its mother, but can be disrupted by fishing vessels, potentially impacting dolphin populations.
Astronomers have successfully detected their first two near-Earth asteroids (NEAs) using a refurbished telescope at the Australian National University's Siding Spring Observatory. The discoveries, made on March 29, include an 100-meter and 300-meter asteroid that pose no direct threat to Earth.
A new MRI technique allows researchers to capture moving images of blood traveling through vessels non-invasively. This technology can easily be applied to existing MRI machines, enabling real-time physician-scanner interaction and detailed analysis of cardiovascular disease.
UCSD School of Medicine researchers have identified a mechanism leading to life-threatening infections, where PKR protein causes macrophages to die, allowing bacteria to spread. The discovery may help develop inhibitors for PKR, controlling nasty infections and reducing flu-related deaths.
Researchers at Duke University Medical Center have successfully reprogrammed human fat cells to become adult stem cells capable of forming bone, cartilage, and other cell types, providing a promising new approach for treating diseases such as osteoarthritis.
Heavy smoke from the Amazon River basin causes significant reduction in cloud cover, leading to increased surface warming and altered climate. This study reveals a new mechanism of aerosol-driven global climate change, challenging current models.
Recent discoveries, including a photo and skin samples, have reignited hopes of finding the Miss Waldron's red colobus monkey in its remote southeastern corner of Ivory Coast. The discovery has sparked concerns about potential extinctions of other high-canopy forest-dwelling animals.
The new SPEAR3 facility at Stanford Synchrotron Radiation Laboratory offers cutting-edge x-ray science capabilities, including higher resolution and brightness for studying smaller objects. Researchers can utilize the facility to advance fields like structural biology, materials science, and chemistry.
A mathematical model developed by NASA helped researchers identify spatial-temporal waves of dengue cases emanating from Bangkok, Thailand. The study suggests that disease surveillance and control systems in urban areas may help prevent future outbreaks in surrounding regions.
A significant demographic shift has occurred in the US, delaying the transition to adulthood, as youth are combining roles, exploring options, and gaining education to prepare for a demanding labor force. Marriage and family have not been abandoned, but rather postponed until later ages.
A UW astronomer's spacecraft, Stardust, will capture tiny comet grains for clues on the origin of life and carbon in our planet. The encounter with Wild 2 comet is expected to provide valuable insights into the early solar system.
Researchers develop biodegradable beads coated with targeting molecules to effectively treat inflammatory diseases like arthritis and heart disease. The particles can travel through the bloodstream and stick to inflamed tissues, offering a potential solution to conventional drug delivery issues.
The Duct Busters team repairs patent ductus arteriosus in premature newborns with high-quality surgical care, eliminating transport risks and allowing families to stay in familiar environments. The study found no significant differences in anesthesia-related complications or surgical outcomes between on-site and off-site procedures.
A recent study by Margolis and Shim found that a small movement of the mechanical controls in backhoes can lead to rapid vibration, causing operators to lose control. The problem can be eliminated by stiffening the suspension of the cab or developing automatic control systems.
Researchers found that people with dyslexia integrate visual and auditory information differently than good readers, suggesting a sensory integration deficit underlying reading difficulties. This discovery could lead to a simple test for early diagnosis and more effective teaching approaches.
Researchers at the University of Aberdeen and Glasgow aim to analyze biomolecules trapped in rocks dating back millions to billions of years, potentially revealing secrets about life's origin. The three-year initiative will also explore miniaturizing the technique for use on spacecraft traveling to other planets.
The CHEST Foundation and Eli Lilly and Company Foundation have expanded the Critical Care Family Assistance Program to five additional hospitals. The program provides critical support to families of critically ill patients, including computerized kiosks, staff services, and local accommodations.
Researchers at the University of Colorado at Boulder have discovered tiny footpaths in Costa Rica that were precursors to wide, deep, and ritualistic roadways leading to and from cemeteries and villages. The team found that people traveled these paths for centuries, creating worn pathways up to 3 meters deep.
The new yellow bus features alternative fuel, a low floor, and complies with the Americans with Disabilities Act (ADA), providing easy accessibility for passengers. The bus is designed to reduce dependence on foreign energy sources and protect national parks' pristine environment.
Researchers have discovered a direct correlation between Bmp4 activity levels and septum development in congenital heart disease. By manipulating Bmp4 expression, the team recreated the full spectrum of defects seen in AVCD patients, providing a valuable genetic model for future research.
Lee Marek, a renowned Chicago chemist, has been awarded the Helen M. Free Award by the American Chemical Society for his outstanding contributions to public outreach in chemistry. His work includes chemistry demonstrations on TV, radio, and stage shows, as well as leading workshops and courses around the world.
Researchers at the University of Illinois have developed an algorithm that provides fast and accurate structure determination for organic compounds with a center of symmetry. The new approach reformulates the phase problem into an integer programming problem, allowing for rapid solution finding using off-the-shelf optimization software.
A study by UT Southwestern Medical Center found that obesity is associated with acute mountain sickness in high-altitude destinations. Obese individuals are more susceptible to symptoms such as headache, nausea, and fatigue, highlighting the importance of gradual ascent and medication for preventive measures.
The Bechtel Foundation has donated $300,000 to support the development of an atomic testing museum at the Desert Research Institute's Frank H. Rogers Building. The museum will feature exhibits on the Cold War role of the Nevada Test Site and traveling exhibits from the Smithsonian Institution.
Research reveals that obese individuals are more likely to develop symptoms of acute mountain sickness at high altitudes, with lower blood oxygen levels. In contrast, smoking marijuana or taking synthetic cannabinoids in HIV patients did not affect key treatment indicators, according to a new study. A no-fault medical malpractice syste...
Researchers tracked Miss Pearl's epic journey and welcomed her back to her nesting beach in Nicaragua after three years, gaining crucial insights into hawksbill sea turtle behavior and habitat protection. The satellite transmitter on Miss Pearl's back provided vital information on her location and diving patterns.