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Science News Archive 2013 - Page 61


Page 61 of 352

Passing the Gac

Scientists have identified a novel transposon in listeria bacteria responsible for tolerance to benzalkonium chloride. The discovery highlights the importance of thorough disinfection in food-processing facilities to prevent the spread of resistant bacteria.

October 2013 Educational Researcher examines gender gap in college enrollment

The October issue of Educational Researcher explores the role of sorting between boys and girls across public U.S. high schools in explaining the gender gap in college enrollment, particularly for black and Hispanic students. The study reveals that even modest amounts of gender sorting contribute to gender inequality in college entry.

SourceAmerican Educational Research Association·JournalEducational Researcher·DateOct 29, 2013

Events coordination during embryogenesis

Researchers discovered how Brachyury regulates the timing of gene expression in the notochord, a precursor to the backbone, and found that certain mutations can delay or alter this process, potentially leading to birth defects and cancer. The study sheds light on a crucial regulatory mechanism in embryonic development.

SourcePLOS·JournalPLOS Biology·DateOct 29, 2013

Joystick advances independent voting

A voting joystick created at Michigan State University has shown promise in user testing, enabling users with dexterity impairments to vote independently. The device, comparable to a joystick used for motorized wheelchairs, could greatly improve accessibility for millions of Americans.

Evaluation of hospital infection prevention policies can identify opportunities for improvement

A survey of 71 hospitals found that most had policies in place for device use, surgery, and hand hygiene, but fewer had policies on antimicrobial stewardship. Practices to reduce device risk varied between hospitals, with some using bladder scanners and others lacking proper training on urinary catheter placement.

SourceElsevier Health Sciences·JournalAmerican Journal of Infection Control·DateOct 29, 2013

Estrogen protects women with NASH from severe liver fibrosis

Research published in Hepatology suggests that estrogen has a protective effect against the development of severe liver fibrosis in patients with nonalcoholic steatohepatitis (NASH). The study found that men and post-menopausal women have similar risks of developing severe fibrosis compared to pre-menopausal women.

SourceWiley·JournalHepatology·DateOct 29, 2013

My eyes are up here!

Researchers used eyetracking technology to map visual behavior of both men and women as they viewed images of different females with different body types. Women were found to objectify other women more often for social comparison purposes.

SourceUniversity of Nebraska-Lincoln·JournalSex Roles·DateOct 29, 2013

Safer nuclear fuels

Scientists have identified promising new materials that can encase uranium-bearing fuel, reducing the risk of high-temperature oxidation and failure. These materials may eventually replace traditional zirconium alloys, which have been used for 50 years, if they prove safer in the event of a nuclear disaster.

Seeing in the dark

A new dual-band infrared remote sensing system has been developed by Chinese researchers, allowing for the simultaneous detection and identification of thermal infrared signatures. This innovation enables higher sensitivity for measuring IR spectra than existing combined imaging and spectral-analysis devices.

SourceAmerican Institute of Physics·JournalReview of Scientific Instruments·DateOct 29, 2013

Old bat gets a new name

A team of bat biologists has reclassified the Mortlock Islands flying fox as Pteropus pelagicus, correcting a naming error made in 1882. The study also found that the species is part of a wider geographic distribution than previously thought, and its conservation status is uncertain due to rising sea levels and climate change.

SourcePensoft Publishers·JournalZooKeys·DateOct 29, 2013