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Science News Archive 2012 - Page 17


Page 17 of 333

Bugs without borders

Researchers have identified two strains of Clostridium difficile responsible for the global epidemic, highlighting the ease and rapidity of transmission across continents. The study shows that fluoroquinolone resistance played a key role in the spread of these strains.

SourceWellcome Trust Sanger Institute·JournalNature Genetics·DateDec 9, 2012

Abuse during childhood linked to adult-onset asthma in African-American women

A new study by Boston University School of Medicine found that African-American women who suffered abuse before age 11 had a greater likelihood of developing adult-onset asthma. The study followed 28,456 women and found an increased incidence of asthma among those who experienced physical abuse during childhood.

SourceBoston University School of Medicine·JournalJournal of Allergy and Clinical Immunology·DateDec 7, 2012

Putting electronic cigarettes to the test

Researchers at Fraunhofer WKI conducted a study to analyze emissions of volatile organic compounds (VOCs), ultrafine particles, and formaldehyde from e-cigarettes. The results showed lower emissions of VOCs and ultrafine particles when smoking an e-cigarette compared to conventional cigarettes.

SourceFraunhofer-Gesellschaft·JournalIndoor Air·DateDec 7, 2012

1 in 4 physicians uses social media daily

About one in four physicians use social media daily to scan or explore medical information, with oncologists more likely to keep up with innovation. Meanwhile, primary care physicians use social media to get in touch with peers and learn from them.

SourceJohns Hopkins Medicine·JournalJournal of Medical Internet Research·DateDec 7, 2012

A pattern given by nature

A new plant-parasitic nematode worm, Meloidoderita salina, was discovered in a tidal salt marsh at Mont Saint Michel Bay. The female nematode worm exhibits a unique hexagonal beaded pattern on its cystoids, which is the first observation of this type in nematode worms.

SourcePensoft Publishers·JournalZooKeys·DateDec 7, 2012

Cheering microbes into space

A team led by UC Davis Professor Jonathan Eisen and graduate student Wendy Brown will send microbes to the International Space Station to study their growth. The project aims to involve the public in science, especially those not normally engaged, through a competition where samples from different environments are compared.

Monkey business: What howler monkeys can tell us about the role of interbreeding in human evolution

A University of Michigan-led study found that individuals of mixed ancestry among hybrid howler monkeys are physically indistinguishable from pure individuals of each species. The findings suggest that the role of interbreeding in human evolution may have been underestimated due to limitations in the fossil record.

SourceUniversity of Michigan·JournalAmerican Journal of Physical Anthropology·DateDec 7, 2012

Antibiotic-eating bug unearthed in soil

Researchers have discovered a soil bacterium that degrades the common veterinary antibiotic sulfamethazine and uses it for growth. This finding challenges existing theories on antibiotic resistance and suggests that soil bacteria may be capable of breaking down antibiotics more rapidly, potentially reducing their impacts.

SourceAmerican Society of Agronomy·JournalJournal of Environmental Quality·DateDec 7, 2012

X-ray vision can reveal the moment of birth of violent supernovae

A team of astronomers has discovered an excess of X-ray radiation in the first few minutes of collapsing massive stars, potentially revealing the signature of the supernova shock wave. This breakthrough could enable the detection of new supernovae earlier than current methods, allowing for more precise monitoring and analysis.

SourceUniversity of Leicester·JournalMonthly Notices of the Royal Astronomical Society·DateDec 7, 2012

Existing drugs may help more breast cancer patients

Researchers found that some women with HER2 negative breast cancer may still benefit from anti-HER2 drugs due to undetected mutations. The study identified 25 patients with HER2 mutations without amplification, and most responded well to treatment. A phase II clinical trial is now underway to test the effectiveness of these treatments.

SourceWashU Medicine·JournalCancer Discovery·DateDec 7, 2012

Point of light

Researchers at Caltech developed a new waveguide that channels light and focuses surface plasmon polaritons to achieve nanoscale precision. The device has the potential to revolutionize biological imaging and computer storage by allowing for high-resolution maps of molecules and increased memory capacity.

SourceCalifornia Institute of Technology·JournalNature Photonics·DateDec 7, 2012