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Science News Archive December 2014 - Page 27


Page 27 of 28

Microbullet hits confirm graphene's strength

Rice University scientists used a novel testing method to measure graphene's ability to absorb impact, finding it stretches before breaking. The technique, LIPIT, allows for rapid evaluation of nanoscale materials, with potential applications in body armor and spacecraft shielding.

SourceRice University·JournalScience·DateDec 1, 2014

Prompt, appropriate medical care for dislocated shoulder injuries

A literature review suggests that prompt and appropriate treatment of dislocated shoulders can minimize risk and effects of related bone, muscle, and nerve injuries. The study found that up to 96 percent of dislocations are traumatic, occurring most often during contact sports or falls onto an outstretched hand.

SourceAmerican Academy of Orthopaedic Surgeons·JournalJournal of the American Academy of Orthopaedic Surgeons·DateDec 1, 2014

Political correctness in diverse workplace fosters creativity

A study by University of California - Berkeley Haas School of Business researchers finds that political correctness in the workplace boosts creativity among mixed-sex teams by clarifying expectations and reducing sexist language. This challenges the conventional view that PC constraints stifle creative expression.

SourceUniversity of California - Berkeley Haas School of Business·JournalAdministrative Science Quarterly·DateDec 1, 2014

Estimates of anthropogenic nitrogen in the ocean may be high

Research published in Global Biogeochemical Cycles analyzed rain samples from Bermuda to investigate the origin of oceanic nitrogen. The authors found that certain nitrogen isotopes likely represent ammonium recycled from the ocean rather than inputted from human activities.

SourceWiley·JournalGlobal Biogeochemical Cycles·DateDec 1, 2014

For cardiac arrest, epinephrine may do more harm than good

A study published in the Journal of the American College of Cardiology found that administering epinephrine to patients in cardiac arrest may increase the likelihood of death or brain damage. The research analyzed hospital records for over 1,500 patients and showed that those who received higher doses of epinephrine had a worse outcome.

SourceAmerican College of Cardiology·JournalJournal of the American College of Cardiology·DateDec 1, 2014

Sweet smell of success

Researchers at the U.S. Department of Energy's Joint BioEnergy Institute have successfully increased the production of methyl ketones in E. coli bacteria by 160-fold, a significant improvement over previous results. The breakthrough could lead to the development of clean and renewable blending agents for diesel fuel.

SourceDOE/Lawrence Berkeley National Laboratory·JournalMetabolic Engineering·DateDec 1, 2014

Ozone depletion is a major climate driver in the southern hemisphere

Research on ozone depletion reveals devastating effects on Southern Hemisphere weather, including increased incidence of floods, droughts, wildfires, and changes to tree growth rates and biodiversity in Antarctic lakes. Ozone hole impacts are also felt through changes in summer rainfall and wind patterns, posing risks to natural ecosys...

SourceWiley·JournalGlobal Change Biology·DateDec 1, 2014

Skipping college makes young people more likely to abuse pain pills

Young adults who don't attend college are at high risk for non-medical prescription opioid use and disorder, while college-educated peers are more likely to misuse stimulants. The study analyzed data from 36,781 young adults aged 18-22, revealing a significant gap in substance abuse patterns between college graduates and non-graduates.

SourceColumbia University's Mailman School of Public Health·JournalSocial Psychiatry and Psychiatric Epidemiology·DateDec 1, 2014

Understanding the brain's 'suffocation alarm'

Research identifies ASIC1a gene variants associated with panic disorder and respiratory symptoms such as shortness of breath and feelings of suffocation. The study found that the genes are also linked to amygdala structure and function, raising hopes for new treatments.

SourceElsevier·JournalBiological Psychiatry·DateDec 1, 2014

Brain folding

A research team analyzed gyrencephaly index of 100 mammalian brains to identify a threshold value that separates species into two groups: highly folded and less folded. The study found differences in cortical folding did not evolve linearly across species, with life-history traits influencing brain development.

SourceMax-Planck-Gesellschaft·JournalPLOS Biology·DateDec 1, 2014