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Science News Archive December 2014 - Page 2


Page 2 of 28

The biological spoils of war

A Harvard study found that members of an East African herding tribe who engaged in violent raids had more wives and thus more opportunities to increase their reproductive success. The study, which analyzed the data of 120 men, found a clear correlation between raid participation and higher reproductive capacity.

SourceHarvard University·JournalProceedings of the National Academy of Sciences·DateDec 29, 2014

Text messaging reminders increase second dose influenza vaccinations in children

Researchers found that sending text message reminders increased receipt of the second dose of the vaccine by the end of the season and brought children in sooner to be vaccinated. When educational information was embedded into the text messages, the effect was even greater compared to conventional text messages or written reminders only.

Study: Drug combo slows heart decline in muscular dystrophy

A new clinical trial has shown that using available heart failure drugs can slow the progressive decline in heart function in boys with Duchenne muscular dystrophy. The combination of eplerenone and either an ACE inhibitor or angiotensin receptor blocker significantly reduces left ventricular function decline.

SourceMediaSource·JournalThe Lancet Neurology·DateDec 29, 2014

Tracing evolution of chicken flu virus yields insight into origins of deadly H7N9 strain

A study found that changes in the H9N2 flu virus in chickens may have contributed to the creation of the H7N9 avian virus, which has caused outbreaks and deaths since 2013. The research suggests tracking genetic diversity of H9N2 on poultry farms could provide an early warning of emerging viruses with pandemic potential.

SourceSt. Jude Children's Research Hospital·JournalProceedings of the National Academy of Sciences·DateDec 29, 2014

Year of birth significantly changes impact of obesity-associated gene variant

Researchers found a significant impact of the FTO gene variant on body mass index (BMI) that largely depends on birth year, with stronger correlations in later years. The study suggests that broad environmental changes may alter the effect of the gene variant, highlighting the importance of considering time of birth in genetic studies.

SourceMassachusetts General Hospital·JournalProceedings of the National Academy of Sciences·DateDec 29, 2014

First scientific report shows police body-cameras can prevent unacceptable use-of-force

The Rialto experiment showed that evidence capture is just one output of body-worn video, and the technology is most effective at preventing escalation during police-public interactions. The 'preventative treatment' of body-worn-video relies on the combination of the camera plus cognition of surveillance, causing individuals to modify ...

SourceUniversity of Cambridge·JournalJournal of Quantitative Criminology·DateDec 24, 2014

UC researchers find alternate drug therapy lowers antibodies

Researchers at University of Cincinnati discover a new drug therapy that effectively lowers antibodies in kidney patients, paving the way for more successful kidney transplants. The study suggests this approach could benefit up to 10-20% of heart and pancreas transplant candidates who are currently ineligible due to high antibody levels.

SourceUniversity of Cincinnati·JournalAmerican Journal of Transplantation·DateDec 23, 2014

'Mind the gap' between atomically thin materials

Scientists at Penn State have discovered a miniscule vacuum gap that creates an energy barrier for electrons moving between layers of material. This gap is crucial for designing next-generation electronic devices, such as vertical tunneling field effect transistors.

SourcePenn State·JournalNano Letters·DateDec 23, 2014

Trends in indoor tanning among us high school students

According to a study published in JAMA Dermatology, indoor tanning decreased among female US high school students from 25.4% in 2009 to 20.2% in 2013. Frequent indoor tanning was also on the decline, with 10.3% of females engaging in frequent use in 2013. Despite these reductions, indoor tanning remains a common practice among youth.

SourceJAMA Network·JournalJAMA Dermatology·DateDec 23, 2014

That smartphone is giving your thumbs superpowers

Regular smartphone use reshapes brain activity in response to touchscreen interactions, with the thumb being particularly sensitive to changes. The study found that smartphone users' brains show enhanced electrical activity when all three fingertips are touched, and this activity is directly proportional to phone use intensity.

SourceCell Press·JournalCurrent Biology·DateDec 23, 2014

To remove the gallbladder or not -- that is the question

A study by the University of Texas Medical Branch at Galveston found that patients in the highest risk category were less likely to receive gallbladder removal surgery. Despite this, only 22% of those in high-risk group had their gallbladders removed. The researchers used a predictive model to identify low-, moderate-, and high-risk ca...

SourceUniversity of Texas Medical Branch at Galveston·JournalJournal of the American College of Surgeons·DateDec 23, 2014

Researchers confirm whole-genome sequencing can successfully identify cancer-related mutations

A recent study by UT Southwestern Medical Center researchers confirms that whole-genome sequencing can successfully identify cancer-related mutations in patients. The method was used to analyze the genomes of 258 cancer patients, detecting nearly 90% of clinically identified mutations and discovering additional cancer gene mutations.

SourceUT Southwestern Medical Center·JournalEBioMedicine·DateDec 23, 2014