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Science News Archive November 2011 - Page 16


Page 16 of 28

1 in 5 Americans has hearing loss

A new study by Johns Hopkins researchers found that nearly 30 million Americans have severe hearing loss, with prevalence doubling every decade. The finding suggests that many more people than previously thought are affected by this condition, which has significant consequences for cognitive decline and physical functioning.

SourceJohns Hopkins Medicine·JournalArchives of Internal Medicine·DateNov 14, 2011

How smart managers make dumb decisions and why shareholders encourage them: Rotman paper

A new study from the University of Toronto's Rotman School of Management finds that smart managers engage in earnings manipulation and insider trading due to limited capacity and ethical weaknesses. The study suggests that choosing less ethical managers may be in the best interests of current shareholders but not future ones.

SourceUniversity of Toronto, Rotman School of Management·JournalJournal of Accounting and Public Policy·DateNov 14, 2011

Nice guys can finish first

A new Harvard study found that dynamic social networks encourage cooperation and friendliness, while selfish behavior can lead to exclusion from the group. Players who re-wired their social connections were more willing to form new relationships with generous individuals.

SourceHarvard University·JournalProceedings of the National Academy of Sciences·DateNov 14, 2011

New study finds that even the cleanest wastewater contributes to more 'super bacteria'

A new University of Minnesota study reveals that even treated municipal wastewater can contribute significantly to antibiotic-resistant bacteria in surface waters. Researchers found that quantities of these bacteria were typically 20-fold higher near the site where treated wastewater was released into Duluth-Superior Harbor.

SourceUniversity of Minnesota·JournalEnvironmental Science & Technology·DateNov 14, 2011

Self-organized pituitary-like tissue from mouse ES cells

Researchers have successfully differentiated mouse ES cells into a tissue resembling the adenohypophysis, the hormone-secreting component of the pituitary gland. The self-organized tissue exhibits functional hormone secretion and can compensate for pituitary function in mice.

SourceRIKEN·JournalNature·DateNov 14, 2011

Scripps Research scientists find potential Achilles' heel on Lassa fever and related viruses

Researchers at Scripps Research Institute have determined the atomic structure of a protein used by the Lassa fever virus to replicate within infected cells. The study reveals an unexpected molecular crevice where the viral protein grips viral genes, making it a target for potential antiviral drugs.

SourceScripps Research Institute·JournalProceedings of the National Academy of Sciences·DateNov 14, 2011

BUSM: Severe sepsis, new-onset AF associated with increased risk of hospital stroke, death

A recent study by researchers at Boston University School of Medicine found that severe sepsis and new-onset atrial fibrillation are associated with a higher risk of hospital stroke and death. Patients diagnosed with these conditions during hospitalization had three times the risk of stroke and a seven percent increased risk of mortality.

CSHL team solves a protein complex's molecular structure to explain its role in gene silencing

Researchers from CSHL and St. Jude's Research Hospital have discovered new details of how a protein complex contributes to heterochromatin assembly and gene silencing in fission yeast. The team identified a previously unknown substructure at the end of Chp1, which plays a crucial role in heterochromatin formation at telomeres.

SourceCold Spring Harbor Laboratory·JournalNature Structural & Molecular Biology·DateNov 13, 2011

Early, intensive therapy for type 1 diabetes prevented kidney disease in long-term study

A long-term study found that early, intensive glucose-lowering therapy in type 1 diabetes patients prevented impaired glomerular filtration rates and reduced the risk of end-stage kidney disease. Participants who received intensive therapy showed a 50% lower risk of developing impaired GFR over a median follow-up period of 22 years.

SourceUniversity of Washington·JournalNew England Journal of Medicine·DateNov 12, 2011

Can Twitter save lives?

A new study from the University of Pennsylvania School of Medicine reveals that discussions about cardiac arrest on Twitter can provide valuable opportunities for public health education. The researchers found that users frequently share information about CPR and AEDs, as well as discuss resuscitation topics in the news.

FIFA, ICRS team up to keep soccer players on their feet

A new supplement of Cartilage, published by SAGE, examines the effects of articular cartilage injury and degeneration in soccer players. The supplement provides a comprehensive overview of current knowledge on cartilage injury, prevention strategies, and treatment options.

SourceSAGE·JournalCartilage·DateNov 11, 2011