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Science News Archive 2014 - Page 46


Page 46 of 376

Researchers calculate 'hidden' emissions in traded meat

A study estimated embodied methane and nitrous oxide emissions in beef, chicken, and pork from livestock to countries where they are consumed. The researchers found a 19% increase in 'hidden' emissions over the past 20 years, with Russia receiving most of its emissions from Brazil and Argentina.

SourceIOP Publishing·JournalEnvironmental Research Letters·DateNov 13, 2014

Guidelines say nearly all patients with chronic kidney disease should take statins

Two cholesterol management guidelines agree that nearly all patients with chronic kidney disease should receive statins, but 50% of those recommended are not taking them. The study found the Pooled Cohort risk equations to be accurate among people with CKD, indicating a valid tool for estimating heart disease risk.

SourceAmerican Society of Nephrology·JournalJournal of the American Society of Nephrology·DateNov 13, 2014

New process isolates promising material

Researchers at Northwestern University have developed a method to isolate atomically thin sheets of molybdenum disulfide (MoS2), a promising material for optoelectronics and electronics. The process uses copolymer-assisted gradient ultracentrifugation, allowing for scalable isolation of single-layer, bilayer, or trilayer MoS2 sheets.

SourceNorthwestern University·JournalNature Communications·DateNov 13, 2014

Architecture of a lipid transport protein revealed

The structure determination of a lipid scramblase reveals a novel protein architecture that enables the transport of lipids across cell membranes. The discovery provides insight into the activation of the protein by calcium and has implications for understanding previously unknown mechanisms of lipid transport.

SourceUniversity of Zurich·JournalNature·DateNov 13, 2014

Britain's obese in denial about their weight

A majority of obese people in Britain deny being obese, describing themselves as 'just right' or 'very overweight' instead. The study suggests that media coverage and public health campaigns may be contributing to this phenomenon, as people become less likely to recognize the health risks associated with their weight.

SourceCancer Research UK·JournalBMJ Open·DateNov 13, 2014

UC Davis investigational medication used to resolve life-threatening seizures in children

Researchers at UC Davis and Northwestern University have found an investigational medication to effectively treat children with life-threatening seizures, resolving symptoms without adverse effects. The medication, a formulation of allopregnanolone, showed promising results in two clinical cases, where patients were weaned off general ...

SourceUniversity of California - Davis Health·JournalAnnals of Neurology·DateNov 12, 2014

Hope for those with social anxiety disorder: You may already be someone's best friend

People with social anxiety disorder tend to think their friendships are worse than they really are, but a new study reveals this perception may be misplaced. The study found that friendships of people with social anxiety disorder were not significantly worse than those without the disorder, contrary to their self-reported experiences.

SourceWashington University in St. Louis·JournalJournal of Abnormal Psychology·DateNov 12, 2014

Self-inflation harms kids' relationships at school

A new study by Katrin Rentzsch and Michela Schröder-Abé found that unrealistic views of one's academic abilities can damage a child's relationship with others in the classroom. Students who tend to feel unrealistically superior to their peers are less liked by them, even at habitual levels.

SourceSAGE·JournalSocial Psychological and Personality Science·DateNov 12, 2014

HIV virulence depends on where virus inserts itself in host DNA

Researchers at KU Leuven discovered that HIV's integration site determines disease progression. The team found that manipulating the integration site can lead to faster disease progression in some cases, but also opens up possibilities for developing new therapies by targeting safer regions of host DNA.

SourceKU Leuven·JournalCell Host & Microbe·DateNov 12, 2014

A twisted world -- chemists build a molecular banister

Researchers at the University of Basel have created a helical molecule with unique properties, where one strand winds around a central axis like a staircase banister. This 'twisted world' enables dynamic changes in chirality, opening up new possibilities for basic research and industrial applications.

SourceUniversity of Basel·JournalAngewandte Chemie International Edition·DateNov 12, 2014

The backwards brain? Study shows how brain maps develop to help us perceive the world

Scientists at Scripps Research Institute found that moving forward trains the brain to perceive the world normally and calibrates time perception. The study's findings have implications for treating sensory processing disorders like autism and could lead to retraining the brain after stroke or other conditions.

SourceScripps Research Institute·JournalProceedings of the National Academy of Sciences·DateNov 12, 2014

Picture emerges of how kids get head injuries

A study of over 43,000 children with head trauma found that falls were the most common cause of head injuries in children under 12, while assaults, sports, and car crashes were more prevalent in teenagers. The findings suggest that CT scans may be overused during diagnosis, and could help policy makers develop injury-prevention measures.

SourceWashU Medicine·JournalNew England Journal of Medicine·DateNov 12, 2014