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Science News for June 11, 2011


Birdsong independent of brain size

A new study found that the sex differences in the brains of songbirds vary according to their social status. Contrary to previous assumptions, dominant males' larger brain areas controlling song behaviour do not explain their dominance. Instead, gene activity and neural connections play a more significant role

SourceMax-Planck-Gesellschaft·JournalPLOS ONE·DateJun 11, 2011
GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.

Internal bleeding higher with popular heart device than earlier model

A new study reveals that patients implanted with the HeartMate II left ventricular assist device (LVAD) are at a higher risk of internal bleeding than those who received an earlier model. The research found nearly 22% of patients experienced gastrointestinal bleeding, while eight percent suffered from major adverse neurological events.

SourceHenry Ford Health·DateJun 11, 2011

Oral appliance therapy improves craniofacial growth direction and snoring

Children with enlarged tonsils and adenoids who wore an oral appliance for six months experienced favorable craniofacial growth, increased pharyngeal dimensions, and improved breathing and snoring during sleep. The treatment also normalized respiratory function and sleep quality, reducing the incidence of obstructive sleep apnea.

SourceAmerican Academy of Sleep Medicine·DateJun 11, 2011