NASA sees tiny Tropical Storm Tony traveling
Tropical Storm Tony is a small, compact storm traveling through the central Atlantic Ocean. The storm's maximum sustained winds are near 45 mph, with some strengthening expected before gradual weakening.
Search results for “Traveling Salesman Problem”
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Sun spits out a coronal mass ejection
A coronal mass ejection (CME) was released by the sun on October 4, 2012, traveling at approximately 400 miles per second. The CME may affect electronic systems in satellites and on Earth, although major effects have not been observed in the past.
Smoking clouds the brain after stroke
A Canadian study found that smoking after a stroke significantly affects problem-solving skills and decision-making abilities. Patients who quit smoking achieved the same scores as lifetime non-smokers, emphasizing the importance of quitting for cognitive health.
NASA sees sun unleash a wide, but benign, CME
A wide coronal mass ejection (CME) is traveling at approximately 700 miles per second and expected to reach Earth on September 29. The CME is associated with a small solar flare, classified as C-class, which is not expected to cause significant disruptions to electronic systems.
Simple new test to combat counterfeit drug problem in developing countries
Scientists have developed a simple, paper-strip test that can identify counterfeit versions of Panadol, one of the most-frequently faked medicines globally. The test, which takes less than 10 minutes, uses colorimetric chemistry on chemically treated paper to detect suspicious ingredients.
Exploring the 2-way linkages between binge drinking and unemployment
A recent study published in Alcoholism: Clinical & Experimental Research found a significant association between binge drinking among women and long-term unemployment. The study analyzed data from 13,031 Swedish residents and found that frequent binge drinking was a stronger predictor of problem drinking for women.
NASA STEREO observes 1 of the fastest CMEs on record
Scientists at NASA's Goddard Space Flight Center recorded a coronal mass ejection traveling at unprecedented speeds using data from the STEREO spacecraft. The event produced a strong magnetic field and intense solar radiation, offering insights into the causes of space weather events.
Greater working memory capacity benefits analytic, but not creative, problem-solving
Research suggests that high working memory capacity enhances performance in mathematical problem-solving by facilitating focused attention. In contrast, excessive focus may hinder creative problem-solving due to the need for novel approaches and diverse information combinations.
SourceAssociation for Psychological Science·JournalCurrent Directions in Psychological Science·DateAug 7, 2012
New study suggests clinicians overlook alcohol problems if patients are not intoxicated
A recent study by the University of Leicester found that medical staff struggle to detect alcohol problems in non-intoxicated patients. General practitioners identified 40% of problem drinkers, while hospital doctors and mental health specialists detected 50% and 55%, respectively.
Frog calls inspire a new algorithm for wireless networks
Researchers at Polytechnic University of Catalonia developed an algorithm using Japanese tree frogs' calling behavior to solve the graph coloring problem, ensuring efficient color assignment in wireless networks. The new approach enables optimizing WiFi connections and improving energy efficiency.
New method knocks out stubborn electron problem
Scientists have developed a new method to accurately predict electron behavior in atoms and molecules, resolving the N-representability problem. This breakthrough enables more accurate calculations for phenomena such as combustion engine efficiency and atmospheric ozone depletion.
What's the best way to treat problem alcohol use?
The Centre for Addiction and Mental Health has released comprehensive reviews of the most effective treatments for alcohol dependence, emphasizing medication and psychosocial therapies. These interventions have been shown to be effective in treating problem alcohol use and concurrent disorders.
SourceCentre for Addiction and Mental Health·JournalThe Canadian Journal of Psychiatry·DateJun 26, 2012
New solar active region spitting out flares
NASA's Goddard Space Flight Center detected a new solar active region, AR1504, which fired off two M-class flares and two coronal mass ejections (CMEs) on June 13-14, 2012. The CMEs are traveling towards Earth at speeds of 375 and 800 miles per second.
New twist on ancient math problem could improve medicine, microelectronics
Nanotechnology researchers at the University of Michigan and the University of Connecticut have found a solution to the 'filling problem,' which can optimize cancer treatment, wireless network design and microchip manufacturing. The new approach uses a shape's skeleton to fill objects with discs of varying sizes.
New research brings satellite measurements and global climate models closer
Researchers found a data calibration problem in the University of Alabama's temperature record, which has been cited by climate change skeptics. When corrected, the results fall in line with other records and climate models, confirming their agreement on global warming impacts.
Grant awarded to help improve problem-solving skills for deaf and hard-of-hearing students
Researchers at RIT are developing experiential learning modules to address barriers faced by deaf and hard-of-hearing students in STEM fields. The three-year project aims to enhance problem-solving skills, teamwork, and process improvement through immersive hands-on activities.
Disclosure of financial conflicts of interest may worsen medical bias
The editors of PLOS Medicine argue that disclosure policies for financial conflicts of interest in medicine may actually exacerbate the problem of bias. Studies in social science suggest that overemphasis on disclosure can leave the root issue unaddressed.
Barrier to faster graphene devices identified and suppressed
Researchers at Vanderbilt University have identified a major barrier to faster graphene devices, finding that charged impurities on the surface of graphene scatter electrons. By using electrically neutral liquids, they achieved record-levels of room-temperature electron mobility, three times greater than previous graphene-based devices.
Semi-automated 'pathwalking' to build a protein model
Researchers at Baylor College of Medicine have developed a semi-automated protocol called pathwalking to generate initial models of protein folds from near-atomic resolution images. This approach enables the rapid generation of ensemble models that can be optimized for full atomic models.
Establishing a new scalar curvature flow method
Researchers from National University of Singapore and Nanjing University establish a new scalar curvature flow method to solve the prescribing scalar curvature problem. The method adapts Hamilton's Ricci flow approach and infinitely dimensional Morse theory to tackle the problem, providing a stronger conclusion than previous methods.
Climate change takes back seat to decision-making in water security says ASU researcher
Researchers found that Phoenix's water problems are a demand problem, not a supply problem. Higher urban densities, slower growth, and fewer backyard swimming pools can reduce the risk of future shortages.
IBD travelers are not at higher risk of contracting intestinal infections
A new study published in Clinical Gastroenterology and Hepatology found that IBD travelers are not at a higher risk of contracting intestinal infections when visiting developing or tropical countries. Traveling during clinical remission can significantly reduce the risk of illness, according to lead author Shomron Ben-Horin.
SourceAmerican Gastroenterological Association·JournalClinical Gastroenterology and Hepatology·DateJan 25, 2012
Why are wealthy consumers less likely to buy luxuries during a recession?
During economic downturns, wealthy consumers tend to cut back on non-essential expenses like dining out or traveling, prioritizing essential goods. This shift is driven by a desire to maintain relative social status amidst reduced peer spending.
Fruit flies watch the sky to stay on course
Researchers at the University of Washington discovered that fruit flies use polarization patterns of natural skylight to maintain their heading while traveling. This finding suggests that many insects possess a navigational system, which could be studied using genetics research.
LSU astronomers discover origin of thermonuclear supernova
A team led by LSU Professor Bradley Schaefer and graduate student Ashley Pagnotta discovered the origin of thermonuclear supernovae as a pair of white dwarf stars. The study resolves the decades-long 'progenitor problem' in astrophysics, with no remaining possible explanations for the explosions.
Pions don't want to decay into faster-than-light neutrinos, study finds
Researchers found that pion decays would produce superluminal neutrinos only if energy and momentum were conserved. However, the OPERA experiment's results cannot be replicated under current physics. The creation of high-energy neutrinos is also supported by observations from IceCube.
IVC filters: Society of Interventional Radiology leads in patient care, safety, research
Researchers published a study on following patients with retrievable IVC filters to improve placement success and patient follow-up. The study supports existing guidelines developed by the Society of Interventional Radiology for safe filter placement.
SourceSociety of Interventional Radiology·JournalJournal of Vascular and Interventional Radiology·DateNov 28, 2011
Physicists localize 3-D matter waves for first time
Researchers at University of Illinois successfully localized quantum matter waves in three dimensions, a phenomenon theorized decades ago. The findings have implications for various electronics applications and could lead to better understanding and manipulation of materials.
Social media sites may reveal information about problem drinking among college students
A study published in Archives of Pediatrics and Adolescent Medicine found that college students who display references to intoxication or problem drinking on their Facebook profiles are more likely to report alcohol-related injuries. The study suggests using social media monitoring as a tool for identifying at-risk students, potentiall...
New translator app makes sense of foreign-language food menus
A new translation app can help English speakers understand foreign-language food menus, allowing individuals with medical restrictions to make informed decisions. The app uses a method called n-gram consolidation to improve accuracy and reduce memory requirements, enabling real-time translations without internet connectivity.
Targeted policing has knock-on benefits
A new study by University College London found that targeted policing can lead to a reduction in crime not only in the targeted area but also in surrounding locations, known as 'diffusion of benefits'. Problem-oriented policing was shown to have the greatest positive effect on crime in nearby areas.
Etch-a-sketch with superconductors
Scientists at University College London and Sapienza University of Rome have developed a method to manipulate high-temperature superconductivity in materials. By illuminating with X-rays, researchers can create and control tiny superconducting structures, enabling the creation of new electronic devices.
Researchers create umpire schedule for MLB
Researchers created a novel solution to generate high-quality schedules for MLB umpires, minimizing travel time and adhering to league rules. The method, developed in collaboration with experts from Carnegie Mellon University and Michigan State University, reduced the creation time from weeks to just a few days.
Fast prediction of axon behavior
Case Western Reserve University researchers developed a new computer modeling method that accurately predicts how peripheral nerve axons respond to electrical stimuli, slashing the process from weeks to just seconds.
Betting on good luck and 4-leaf clovers
Research at the University of Cambridge found a connection between impulsivity and superstitious rituals in problem gamblers. The study suggests that high impulsivity can predispose individuals to complex distortions, including superstitions, that contribute to problem gambling.
How bumblebees tackle the traveling salesman problem
Research reveals bumblebees use a trade-off strategy to visit high-reward flowers while minimizing travel distance. As they gain experience, individual bees balance both factors to optimize their routes.
USC scientists uncover mechanism by which chronic stress causes brain disease
Researchers found that chronic stress causes overproduction of the RCAN1 gene, leading to neurodegenerative diseases like Alzheimer's and Down syndrome. Overexpression of this gene causes hyper-phosphorylation of tau proteins, damaging brain cells and disrupting signal transmission.
Tiny ring laser accurately detects and counts nanoparticles
A tiny ring laser can detect and count individual nanoparticles with high accuracy, offering a breakthrough in sensing technology. The sensor's effective resolution limit is about one nanometer, making it orders of magnitude more sensitive than earlier passive resonators.
Gambling problem exposed as access grows
A new study by University of Calgary researcher Dr. David Hodgins highlights the growing issue of problem gambling as access to online gambling increases. Problem gamblers often co-occur with other mental health and substance-abuse disorders, and treatment effectiveness is variable.
Research to target untested rape kits
A new study funded by the National Institute of Justice will investigate the issue of untested rape kits in Houston and develop strategies to solve the problem. The project includes collaboration between researchers from Sam Houston State University, the University of Texas at Austin, and law enforcement agencies.
Traveler's alert: Business travel linked to obesity and poor health
A Columbia University study found that business travelers have poorer health outcomes, including higher BMI and cholesterol levels, compared to those who travel less often. The study suggests that extensive travel is associated with negative health consequences, such as increased risk of cardiovascular disease.
SourceColumbia University's Mailman School of Public Health·JournalJournal of Occupational and Environmental Medicine·DateMay 2, 2011
Gambling problems are more common than drinking problems, according to first-of-its-kind study
A first-of-its-kind study by researchers at the University at Buffalo found that problem gambling is considerably more common among U.S. adults than alcohol dependence after age 21, with significant gender and socioeconomic differences in frequency and prevalence.
Critical thinking: How do children learn who to trust?
A UT Dallas researcher is studying how preschool and elementary-age children evaluate information to solve problems and learn critical thinking. The study aims to combat misleading advertising by understanding how children differentiate between reliable and doubtful sources of information.
Horticulture students link problem-solving to employment
A study found that horticulture students prefer finding the right answer over developing a strategy, but still value problem-solving as an important skill. The researchers developed an online learning platform, PSLP, which improved student engagement and understanding of ill-structured problems.
Can bees color maps better than ants?
Researchers develop an algorithm based on honey bee behavior to solve the four-color theorem, which proves that maps can be colored with only four colors. This method uses less computational power than existing algorithms and applies to engineering and mathematical problems beyond map coloring.
SourceInderscience Publishers·JournalInternational Journal of Bio-Inspired Computation·DateMar 10, 2011
Scientists find increase in microearthquakes after Chilean quake
Researchers at Georgia Institute of Technology found a statistically significant increase in microearthquakes after the Chilean earthquake in February. The study suggests that seismic waves from distant earthquakes can trigger events on the other side of the Earth, with secondary and tertiary waves playing a key role.
Why problem drinking during adolescence is never a 'phase'
A new study confirms the Rutgers Alcohol Problem Index (RAPI) is predictive of later diagnoses of alcoholism in young adulthood. Adolescent RAPI scores were associated with a higher likelihood of alcohol dependence seven years later, especially in females.
City Tech research team casts light on asteroid deflection
A New York City College of Technology research team has developed a method to deflect asteroids using solar sail technology. The technique involves heating the surface of an asteroid to create a jet stream, which would alter its trajectory and potentially convert an Earth impact into a near miss.
Voiding defects: New technique makes LED lighting more efficient
Researchers at North Carolina State University have developed a new technique to reduce defects in gallium nitride (GaN) films used in LED lighting, increasing efficiency by a factor of two. The technique involves embedding voids in the film, which traps defects and prevents them from traveling through the material.
A mathematical model for moving bottlenecks in road traffic
A mathematical model for moving bottlenecks in road traffic is proposed, taking into account the influence of a slow-moving vehicle on entire traffic flow. The model improves transportation designs and reduces congestion, accidents, and risk management.
SourceSociety for Industrial and Applied Mathematics·JournalSIAM Journal on Mathematical Analysis·DateJan 19, 2011
Half of those travelling internationally not aware of potential health risks
A recent study found that 46% of US travelers to resource-limited countries did not seek health advice or vaccinations before departure. This highlights the need for better education and resources on public health risks associated with global travel.
Heavy drinkers consume less over time, but not at 'normal' levels
Problem drinkers reduce their alcohol consumption over time, but fail to reach 'normal' levels. Despite decreases, heavy drinkers continue to consume more than the general population.
SourceJournal of Studies on Alcohol and Drugs·JournalJournal of Studies on Alcohol and Drugs·DateOct 27, 2010
Tornado-chasing becomes vacation choice, MU researchers find
A growing number of people are traveling to Tornado Alley for an experience beyond thrills, seeking unique encounters with nature's power and beauty. Most tourists, mostly middle-aged and educated, spend $3,000-$5,000 on a one-to-two week tour with experienced storm chasers.
NASA awards CU-Boulder $6.7 million to design instruments for mission to sun
NASA has awarded CU-Boulder $6.7 million to design instruments for the Solar Probe Plus mission, which will orbit 22 times closer to the sun than Earth. The team aims to understand how the sun ticks and better forecast radiation environments for future space explorers.
Nanoscale DNA sequencing could spur revolution in personal health care
A team of researchers at the University of Washington has developed a method for rapid and cost-effective DNA sequencing using nanotechnology, paving the way for personalized medicine. The new technique has the potential to provide detailed genetic information for specific conditions and diseases.
SourceUniversity of Washington·JournalProceedings of the National Academy of Sciences·DateAug 16, 2010
Certain vena cava filters may fracture, causing potentially life-threatening complications
A report found that certain vena cava filters, used to prevent blood clots from reaching the lungs, can fracture and cause life-threatening complications. The filters were found to have a high rate of fracture, with some fragments traveling to the heart and causing symptoms such as rapid heartbeat or fluid buildup.
Traveling by car increases global temperatures more than by plane, but only in long term
A new study finds that traveling by car increases global temperatures more significantly than flying over the long term due to higher carbon dioxide emissions. In contrast, air travel has a greater adverse climate impact in the short run due to its effects on high-altitude ozone and clouds.
Multifunctional nanoparticle enables new type of biological imaging
Researchers have developed a multifunctional nanoparticle that eliminates background noise, enabling precise medical imaging. The technique uses photoacoustic imaging to detect single cells, potentially revolutionizing cancer detection and molecular imaging.
A simple quantum dynamics problem?
Scientists have observed the first real-time measurements of a rare gas atom and halogen molecule dissociation. The study found that adding vibrational energy to the bromine-stretching vibration led to rapid direct dissociation, while higher excitation resulted in a more complex mechanism.
Treating tongue tie could help more babies breastfeed
A common problem in newborns, tongue ties can hinder breastfeeding and lead to feeding problems. Researchers recommend a simple procedure called frenotomy to correct the issue, which can improve breastfeeding outcomes.