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Post-mortem of a comet

Researchers at the University of Leicester have dissected comet samples to reveal their true composition, shedding light on the Solar System's early stages and water delivery. They found unexpected signs of high-temperature iron oxides, raising questions about comet formation.

X-rays reveal chemical link between birds and dinosaurs

A team of paleontologists, geochemists, and physicists used X-ray technology to analyze the Thermopolis Archaeopteryx fossil, revealing half a dozen chemical elements that were part of the living animal itself. The study confirms that feathers in the fossil are actual fossilized feathers containing phosphorus and sulfur.

SourceDOE/SLAC National Accelerator Laboratory·JournalProceedings of the National Academy of Sciences·DateMay 10, 2010

Alcohol in moderation is good for sick hearts too

A recent study published in the Journal of the American College of Cardiology found that moderate alcohol consumption significantly reduces the risk of death from any cause in people who have previously suffered from ischemic vascular disease. The study analyzed data from over 16,000 patients and found a 20% risk reduction, comparable ...

SourceCatholic University - Campobasso·JournalJournal of the American College of Cardiology·DateMar 22, 2010

Mineral studies advance antibacterial alternatives

Researchers at Arizona State University have discovered two factors controlling the antibacterial activity of clay minerals, which can kill bacteria that are resistant to antibiotics. The study's findings suggest a role for acid-soluble metal species in mineral toxicity, but also present challenges for developing topical treatments.

SourceArizona State University·JournalPLOS ONE·DateMar 3, 2010

Old diving tank air extends CSIRO Air Archive

Scientists discover a disused SCUBA tank filled with air in 1968, extending the longest record of greenhouse gases in the Southern Hemisphere. The find uses archived data to analyze propellants, refrigerants and aluminium smelter emissions not widely used in Melbourne at that time.

Protein-bait interactions, display libraries featured in Cold Spring Harbor Protocols

Researchers from the Broad Institute of MIT and Harvard present a new method for identifying protein-bait interactions, allowing for sensitive detection and discrimination of specific interactions. The method uses quantitative proteomics approaches to compare enrichment with the bait of interest against samples using control baits.

SourceCold Spring Harbor Laboratory·JournalCold Spring Harbor Protocols·DateMar 1, 2010

Multiple patient samples of an analyte improve detection of changes in clinical status

Researchers developed a mathematical methodology to reduce biologic variation in laboratory results, improving the sensitivity of detecting physiologic changes. By using multiple paired sets of patient data, they found a substantial decrease in the difference necessary to achieve a given confidence interval.

SourceBoston University School of Medicine·JournalArchives of Pathology & Laboratory Medicine·DateJan 6, 2010

Antiretroviral therapy can be delivered safely in Africa without routine laboratory monitoring for toxic effects

Researchers found that first-line ART can be delivered safely without routine biochemistry and haematology monitoring, but CD4-cell count monitoring has a small benefit in disease progression and mortality. The trial suggests that monitoring should start from the second year of ART to guide the switch to second-line treatment.

SourceThe Lancet_DELETED·JournalThe Lancet·DateDec 8, 2009

Researchers establish common seasonal pattern among bacterial communities in Arctic rivers

A three-year study of six large Arctic river ecosystems reveals predictable temporal patterns among bacterial communities, suggesting they could be used to monitor climate change. The findings show that these communities shift synchronously over time, correlating with seasonal shifts in hydrology and biogeochemistry.

SourceUniversity of Maryland Center for Environmental Science·JournalProceedings of the National Academy of Sciences·DateNov 24, 2009

Why nice guys usually get the girls

A recent study found that female water striders prefer non-aggressive males over highly sexually aggressive ones when it comes to mating. In contrast, groups of low-key male water striders mated with more females than did groups of highly aggressive males.

SourceUniversity of Arizona·JournalScience·DateNov 5, 2009

EMBO recognizes talented young group leaders in Europe

The EMBO Young Investigators Programme identifies top European young life scientists, offering academic and financial help to set up independent research labs. The selected 17 young group leaders work in nine countries, with an average age of 36 and four women, and will benefit from various activities including mentorship and networking.

SourceEMBO·DateNov 4, 2009