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Science News Archive April 2012 - Page 19


Page 19 of 29

Multitasking – not so bad for you after all?

A study by Kelvin Lui and Alan Wong found that frequent media multitaskers outperformed light multitaskers in integrating visual and auditory information. This improvement was attributed to their ability to routinely take in information from multiple sources.

SourceSpringer·JournalPsychonomic Bulletin & Review·DateApr 12, 2012

Drastic changes needed to curb most potent greenhouse gas

A new study suggests that reducing nitrous oxide (N2O) emissions from the industrial and agricultural sectors by 50% is crucial to meet the IPCC's most aggressive strategy for climate change mitigation. The study found that a 50% reduction in meat consumption per person is necessary to stabilize atmospheric N2O concentrations.

SourceIOP Publishing·JournalEnvironmental Research Letters·DateApr 12, 2012

ALMA reveals workings of nearby planetary system

The ALMA observatory has discovered a nearby planetary system with sharp-edged dust ring, indicating 'shepherding' planets that keep the disk within their gravitational effect. The planets are smaller than previously thought, about the size of Mars to a few times the Earth, and are among the coldest planets found orbiting a normal star.

SourceNational Radio Astronomy Observatory·JournalThe Astrophysical Journal Letters·DateApr 12, 2012

Decoding worm lingo

Researchers found that many nematodes communicate using the same types of small-molecule pheromones, revealing a universal nematode language. This discovery could lead to strategies to prevent unwanted nematode species and improve agricultural and healthcare industries.

SourceCalifornia Institute of Technology·JournalCurrent Biology·DateApr 12, 2012

Majority-biased learning

Researchers found that humans and chimpanzees tend to copy majority behaviour, while children consider both frequency and number of demonstrators. Orangutans, however, showed no such bias, possibly due to their solitary group structure. The study suggests a key difference in social learning mechanisms between humans, chimpanzees, and o...

SourceMax-Planck-Gesellschaft·JournalCurrent Biology·DateApr 12, 2012

Policies, learning-by-doing played important role in reducing ethanol costs

A new study from the University of Illinois concludes that learning-by-doing played a significant role in reducing the processing costs of corn ethanol in the US. The study found that biofuel policies, which induced ethanol production beyond free-market levels, contributed to increased industry competitiveness over time.

Exercise and attitude may be thermostat for hot flashes

Penn State researchers found that perceived control over hot flashes is a key factor in how exercise affects menopausal women. Women who felt they had more control over their hot flashes experienced fewer symptoms after physical activity. Cognitive behavioral therapy may also help some women feel more in control.

SourcePenn State·JournalMaturitas·DateApr 12, 2012

Test links strains of common parasite to severe illness in US newborns

Researchers identified the most strongly associated strains with premature birth and severe birth defects, using a new blood test developed by NIAID. The study suggests that widespread screening and treatment of pregnant women infected with Toxoplasma gondii could prevent infants from suffering eye and brain damage.

SourceNIH/National Institute of Allergy and Infectious Diseases·JournalClinical Infectious Diseases·DateApr 12, 2012

Study resolves debate on human cell shut-down process

Scientists at the University of Liverpool have resolved the debate on the mechanisms involved in human cell shut-down during division, finding that receptors can transport nutrients but are temporarily blocked. This discovery may lead to future studies on manipulating this process to prevent harmful infections.

SourceUniversity of Liverpool·JournalProceedings of the National Academy of Sciences·DateApr 12, 2012

Do monkeys know what others need?

Brown capuchin monkeys demonstrate empathetic perspective-taking by withholding food from a fellow monkey who has just eaten, suggesting they understand their physical needs. The study provides first evidence for this behavior in primates.

SourceBrill·JournalBehaviour·DateApr 12, 2012

New pregnancy risk for babies and moms

A new study reveals that overweight pregnant women with mildly elevated blood sugar levels are at a higher risk of adverse pregnancy outcomes than previously thought. These women, who do not have gestational diabetes or obesity, carry significant risks for their health and the health of their babies.

SourceNorthwestern University·JournalDiabetes Care·DateApr 11, 2012

Buy coal? New analysis shows purchasing fossil fuel deposits best way to fight climate change

A new study proposes that purchasing extraction rights for dirty fossil fuels in non-participating countries is a more effective way to combat climate change. By conserving these deposits, coalitions can reduce emissions and mitigate carbon leakage, allowing them to implement their ideal policy without fear of non-participating countri...

SourceUniversity of Chicago Press Journals·JournalJournal of Political Economy·DateApr 11, 2012

Key to new antibiotics?

McMaster University researchers found a remarkable prevalence of antibiotic resistance bacteria isolated from Lechuguilla Cave, one of the deepest and largest caves in the world. The discovery suggests that there are far more antibiotics in the environment that could be used to treat currently untreatable infections.

SourceMcMaster University·JournalPLOS ONE·DateApr 11, 2012

Foes appear larger, more muscular when holding a weapon

A recent study found that men who hold guns or large kitchen knives are perceived as taller and more muscular than those holding non-threatening objects. The researchers suggest that this pattern may reflect human psychology's tendency to associate size with danger and formidability.

SourcePLOS·JournalPLOS ONE·DateApr 11, 2012

Don't assume the sand is safe

Scientists developed reference guide for potentially harmful germs in sand to inform beach management decisions, with a focus on minimizing risk for children. The study found low levels of harmful microbes at one beach site, indicating the sand was safe for beachgoers.

SourceUniversity of Miami·JournalEnvironmental Science & Technology·DateApr 11, 2012