Researchers have found surprising variation in nicotine withdrawal symptoms, with many experiencing intense spikes months after quitting. The study suggests that the duration or pattern of withdrawal symptoms is more difficult to overcome than the initial intensity.
Researchers have found evidence of chlorine emissions in the atmosphere of Io, a Jupiter moon with high volcanic activity. The discovery suggests that salt may be present on Io's surface due to chemical reactions or geological processes.
The study found that only 7% of D.C. residents and 14% of Delaware residents consider themselves part of the South. In contrast, 84% of Texans and 82% of Virginians identify as Southerners. The results suggest a more nuanced understanding of regional identity.
Researchers at AeroMet developed the Lasform process, which builds high-tech titanium components using laser forming and powdered titanium. The process reduces production scrap and time to weeks, ideal for prototype parts and small production runs.
Researchers at Columbia University have found a link between the greenhouse effect and warmer winters in the northern hemisphere. They used a NASA model to suggest that increased greenhouse gases are causing stronger winds to carry warmer air from oceans to continents, leading to colder continental air near the oceans.
Researchers at Cedars-Sinai Medical Center have developed a new endoscopic procedure to remove pituitary gland tumors, reducing trauma and complications. The technique has been refined after an initial animal study identified potential 'glitches' that were later addressed, resulting in improved outcomes for patients.
A Penn State study found that female athletes with poor body image and excessive exercise schedules are more likely to experience menstrual irregularities, including transient infertility. The research highlights the importance of addressing psychological and behavioral factors alongside dietary and exercise habits.
An intelligent microwave oven with a bar-code scanner can cook convenience foods accurately while detecting potential allergens. The system uses detailed bar codes containing information on cooking instructions, crucial for killing bacteria in cook-chill meals.
Spray forming technology uses tiny metallic droplets to create strong aerospace alloys, reducing production costs and increasing strength. This process enables the creation of larger components, benefiting from cost reduction and improved alloy utilisation.
A study by University of Washington researchers found that men and women view sexual abuse cases differently, with women tending to favor the plaintiff. Women's familiarity with sexual and physical abuse also influences their judgments.
Researchers at VistaGen use ES cells to identify drugs that might harm the liver, which could lead to safer pharmaceuticals. The company's scientists have already detected toxins in mouse ES cells and plan to repeat the experiment with human cells.
A new scanning device enables researchers to examine internal characteristics of composite engine parts as they are mended, improving use of composite materials. Initial experiments showed that surface integrity can belie internal damage in graphite fibre-PEEK composites.
Researchers at Kansas State University found that bug zappers can spread microorganisms including viruses, potentially causing harm to humans. The devices may not be effective in controlling insect populations, as they indiscriminately kill beneficial insects and only kill a small percentage of damaging insects.
University of California researchers have successfully created a buckyball device that emits white light, contrary to conventional scientific wisdom. The device, made from a modified buckyball derivative, has extremely low efficiency but could potentially be used for illuminating rooms in the future.
A team of young researchers, mentored by Associate Professor Max Vercruyssen, are developing a computerized driving simulator to evaluate astronaut fitness for space travel. The simulator aims to determine alertness, judgment, and motor skills related to operating an automobile, similar to assessing fitness-for-duty in the space shuttle.
The use of depleted uranium weapons by US and British forces in the Balkans threatens the health of soldiers on both sides, as well as civilians. The radioactive dust created by these weapons can cause cell damage, increase cancer risk, and pose a threat to kidneys.
The 'Edge of Light' scanner uses light reflection to create a high-resolution map of surface topography, detecting deformation between rivets caused by corrosion. This technology has the advantage over existing NDI technology, allowing for non-destructive inspection and potential applications in forensic studies and forgery detection.
Northern Hemisphere winters have warmed by up to nine degrees Fahrenheit over the last 30 years, likely due to human activities increasing greenhouse gases. Warmer winters will bring more wet weather to Europe and Western North America.
Scientists from Boston University's Center for Polymer Studies use modern physics to analyze heartbeats, finding complex multifractal properties in healthy hearts. This discovery could help doctors diagnose cardiac disease more effectively, potentially avoiding the harm caused by medication aimed at eliminating variability.
Researchers find significant changes in Arctic oscillation have influenced temperature and precipitation patterns in the Northern Hemisphere over the last 30 years. The shift could be caused by human-induced climate change and is linked to ozone depletion and greenhouse gas buildup.
A new study reveals that the detailed spectral behavior of solar flares falls into just two categories, suggesting a common mechanism for particle acceleration. The finding could provide insight into how particles are accelerated to high energies in solar flares.
Researchers at Schering-Plough Research Institute have made the first atomic view of a promising new class of cancer-fighting drugs. The discovery may lead to faster, better refinement of the drugs and the development of more potent, less toxic treatments.
A team of astronomers has discovered a unique cluster of young stars, approximately 8 million years old, located 97 parsecs from Earth. The cluster, centered around eta Chamaeleon, is one of the nearest to our planet and exhibits unusual characteristics.
CHESS is building a major addition dubbed G-Line, which will produce X-rays at intensity levels five to 50 times greater than existing lines. The new facility will support 80 percent of research time for Cornell personnel.
A new Mayo Clinic study finds that parkinsonism affects 7.5% of the population, with men twice as likely to develop it as women. The study reveals that Parkinson's disease accounts for only 42% of all parkinsonism cases.
Eating a diet high in cereal fiber can help reduce a woman's risk of heart attack, with the highest fiber consumers having a 23% reduced risk of heart disease. The study also found that smoking less, exercising more and eating foods high in vitamins and minerals were associated with higher fiber intake.
Research reveals that showing pictures of admired individuals from marginalized groups can significantly decrease unconscious prejudice. Exposure to images of admired blacks reduced levels of unconscious prejudice by one-third, while exposure to images of admired elderly people lowered ageism by a similar amount.
A new case-control study suggests that high levels of serum ferritin are associated with an increased risk of heart attacks in elderly individuals with other cardiovascular risk factors. Consuming iron-rich foods like red meat can contribute to elevated serum ferritin levels.
A meta-analysis of formerly obese individuals who lost weight found that their resting metabolic rate decreased, explaining why dieters struggle to maintain weight loss. This decrease in metabolism may be a key factor contributing to the difficulty in keeping excess weight off.
A study published in the American Journal of Clinical Nutrition found that consuming a moderate-fat diet rich in plant oils reduced LDL cholesterol levels by 25% in hyperlipidemic men. The specific type of plant oil used in the study was found to have a significant impact on improving cholesterol profiles.
A new study found that enhanced external counterpulsation (EECP) significantly reduces angina pain in patients. The treatment, which involves inflating cuffs on the legs during heartbeats, improves cardiac blood flow and pumping efficiency.
The long-term study found that orlistat helped successful dieters keep weight off. The accompanying editorials suggest that orlistat's benefits are modest.
Researchers found that spotted antbirds in a Panama rainforest increase testosterone levels to boost aggression against invaders, even during the off-season. This finding has implications for understanding aggression regulation in humans and may reveal insights into physiological parameters.
A Phase I study published in Circulation demonstrates that ENBREL improves quality of life scores and increases functional status in patients with advanced heart failure. The study found no significant adverse effects from ENBREL treatment, suggesting a potential therapeutic benefit for chronic heart failure patients.
Researchers observe highly nonexponential folding times in yeast phosphoglycerate kinase and ubiquitin mutant proteins. Downhill folding theory suggests a protein encounters temporary structures en route to its native state.
A new study published in American Journal of Clinical Nutrition found that restricting children's access to certain foods can actually encourage overeating. By removing access to desired foods, children are more likely to consume those same foods, leading to increased intake.
Researchers found that reading a story about a fictitious childhood experience can change people's memories, with opposite-sex stories affecting belief more strongly. The study used a questionnaire to screen participants and then asked them to read a short story with few details.
Yucca Mountain's long-term hydrologic stability makes it a potential site for storing nuclear waste. Calcite and opal deposits indicate minimal water flow into the mountain's cavities.
Researchers have uncovered clues to the cause, timing and evolution of the massive East Asian summer monsoon. The study found a connection between the disastrous 1998 Yangtze River flood and the timing and strength of the summer monsoon.
Gene therapy's concern about viral DNA insertion into gametes is unfounded, as naturally occurring insertions in sperm cells are 100 times more common than the FDA limit. Researchers estimate that 1 individual in every 8 carries a new retrotransposon insertion.
Scientists measure solar wind gusts that squeeze the Earth's magnetosphere, triggering brightening in the aurora borealis. This phenomenon can lead to global magnetic storms, potentially disrupting communications and power supplies.
Climate models project a 23-30% decline in mountain snowpack by 2025, and up to 61% by 2095. This could drastically alter hydrology and water resource management in the region.
A new Hubble image captures the entire stellar life cycle in a single photograph, showcasing various stages of star formation and evolution. The galaxy NGC 3603 is home to multiple starburst clusters, young massive stars, and a blue supergiant nearing its supernova fate.