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Science News for May 14, 2012


Hitch-hiking with birds for life

Studies by University of Gothenburg researcher Daniel Gustafsson reveal that body lice can spread more easily than wing lice, defying expectations. Genetic data shows that almost identical body lice are found on most sandpipers worldwide, highlighting the importance of migration patterns and host bird size.

SourceUniversity of Gothenburg·JournalInternational Journal for Parasitology·DateMay 14, 2012

Back pain improves in first 6 weeks but lingering effects at 1 year

A large study published in CMAJ found that back pain symptoms improve significantly in the first six weeks, but pain and disability may persist even after one year. Patients with acute low-back pain experience a 90% reduction in pain intensity at one year, while those with persistent low-back pain see only a 50% improvement.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateMay 14, 2012

Microbe that can handle ionic liquids

Researchers at JBEI have identified a tropical rainforest microbe that can endure relatively high concentrations of an ionic liquid used to dissolve cellulosic biomass. The discovery holds broad implications beyond the production of advanced biofuels, offering a potential solution to reduce biofuel production costs.

SourceDOE/Lawrence Berkeley National Laboratory·JournalProceedings of the National Academy of Sciences·DateMay 14, 2012

Bio-hybrid device acts as 'thermostat' to control systemic inflammation in sepsis

Researchers at University of Pittsburgh School of Medicine developed a bio-hybrid device that acts as an 'inflammation thermostat' to control systemic inflammation in sepsis. The device loads human liver cells engineered to produce anti-inflammatory proteins, which balance inflammation and immune responses.

SourceUniversity of Pittsburgh Schools of the Health Sciences·JournalDisruptive Science and Technology·DateMay 14, 2012

Lawrence Livermore work may improve the efficiency of the biofuel production cycle

Researchers from Lawrence Livermore National Laboratory have discovered a bacterium that can tolerate toxic chemicals used in biofuel production, allowing for more efficient processing. This breakthrough has the potential to greatly benefit industrial processes and improve the efficiency of biofuel production.

SourceDOE/Lawrence Livermore National Laboratory·JournalProceedings of the National Academy of Sciences·DateMay 14, 2012

Measuring CO2 to fight global warming

Scientists from University of Utah and Harvard develop method to detect changes in CO2 emissions of 15% or more using three monitoring stations. The method is a proof-of-concept step towards verifying compliance with future greenhouse gas treaties.

SourceUniversity of Utah·JournalProceedings of the National Academy of Sciences·DateMay 14, 2012

To get the full flavor, you need the right temperature

A new study by Dr. Gary Pickering and colleagues from Brock University found that changes in food temperature alter the intensity of sour, bitter, and astringent tastes but not sweetness. The research involved 74 participants who tasted sweet, sour, bitter, and astringent solutions at varying temperatures.

SourceSpringer·JournalChemosensory Perception·DateMay 14, 2012

Embargoed news for Annals of Internal Medicine

Researchers found that a comprehensive care management program for chronic obstructive pulmonary disease (COPD) may not be safe or suitable for patients, as it led to excess mortality. In contrast, laxative-free colonography proved accurate in detecting most significant lesions and eliminated a major barrier to colon cancer screening. ...

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateMay 14, 2012

New journal on disruptive science and technology launched by Mary Ann Liebert Inc. publishers

The inaugural issue of Disruptive Science and Technology explores new paradigms in scientific publishing, treatments for sepsis, and temperature regulation, among other topics. The journal provides a custom-designed forum for world-class papers that challenge the status quo and bring about new innovations.

SourceMary Ann Liebert, Inc./Genetic Engineering News·JournalDisruptive Science and Technology·DateMay 14, 2012

Gastric feeding tubes may raise pressure ulcer risk

A new study published in Archives of Internal Medicine reports that gastric feeding tubes may not prevent but rather increase the risk of pressure ulcers in people with advanced dementia. The analysis of thousands of nursing home patients found that those with a feeding tube were 2.27 times more likely to develop a stage II ulcer, and ...

SourceBrown University·JournalArchives of Internal Medicine·DateMay 14, 2012

Growing risks from hatchery fish

Research reveals that salmon raised in hatcheries can harm wild populations through competition for food and habitat. This has significant implications for long-term survival of wild salmon species, highlighting the need for caution and further research to ensure sustainable fisheries management.

SourceSpitfire Strategies·JournalEnvironmental Biology of Fishes·DateMay 14, 2012

Study sheds new light on importance of human breast milk ingredient

A new University of Illinois study shows that human milk oligosaccharides produce short-chain fatty acids that feed a beneficial microbial population in the infant gut. The composition of bacteria changes over time, with different HMO components producing distinct patterns of short-chain fatty acids.

Are people with HIV/AIDS more prone to sudden cardiac death?

Researchers conducted a 10-year retrospective study on HIV patients in San Francisco, finding that they suffered sudden cardiac death at a rate four times higher than the general population. The study suggests that HIV changes the electrophysiology of the heart, increasing the risk of conduction abnormalities and sudden death.

SourceUniversity of California - San Francisco·JournalJournal of the American College of Cardiology·DateMay 14, 2012

Anthropologists discover earliest form of wall art

Anthropologists have uncovered the earliest form of wall art, a 1.5-ton block of engraved limestone found in Abri Castanet, southern France. The piece is approximately 37,000 years old and provides evidence of the role art played in the daily lives of Early Aurignacian humans.

SourceNew York University·JournalProceedings of the National Academy of Sciences·DateMay 14, 2012

Beyond the high-speed hard drive: Topological insulators open a path to room-temperature spintronics

Researchers at Berkeley Lab have demonstrated unique new materials for innovative electronic and magnetic applications. Bismuth selenide's surface electrons flow at room temperature, making it an attractive candidate for spintronics devices and quantum computers. The material's low electron-phonon coupling also underlines its practical...

SourceDOE/Lawrence Berkeley National Laboratory·JournalPhysical Review Letters·DateMay 14, 2012

Religion replenishes self-control

A new study suggests that religious belief serves to enhance self-control, a crucial cognitive process for fostering valuable social behaviors. The research, published in Psychological Science, found that priming volunteers with religious thoughts improved their discipline and ability to delay gratification.

SourceAssociation for Psychological Science·JournalPsychological Science·DateMay 14, 2012

Young children of unmarried parents fare worse when a father's support is court-ordered

A Rutgers University study found that young children of unmarried parents who receive court-mandated financial support from their fathers exhibit more aggressive behavior. In contrast, children whose fathers provide informal support without court orders have increased cognitive skills and verbal abilities. Researchers suggest that pate...

SourceRutgers University·JournalSocial Service Review·DateMay 14, 2012

Novel drug candidates offer new route to controlling inflammation

Researchers have designed and tested molecules that can block or enhance aspects of the immune system's activity, offering a potential new treatment for inflammatory diseases. The breakthrough, published in Journal of Medicinal Chemistry, uses a novel optimization-based approach to design peptides with unprecedented potency and precision.

SourcePrinceton University, Engineering School·JournalJournal of Medicinal Chemistry·DateMay 14, 2012

Color of robins' eggs determines parental care

A study found that male robins care for their young more when the eggs laid by their mate are brighter blue. The researchers replaced artificial eggs with baby robins in nests to test this theory, and results showed males feeding their babies twice as much when eggs were brightest blue.

SourceQueen's University·JournalBehavioral Ecology and Sociobiology·DateMay 14, 2012