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Science News Archive May 2011 - Page 15


Page 15 of 28

Happiness has a dark side

A new review article outlines four ways in which happiness can be problematic, including the risk of disappointment and decreased happiness when pursuing it. The study also finds that excessive or inappropriately felt happiness can lead to negative consequences, such as reckless behavior and social problems.

SourceAssociation for Psychological Science·JournalPerspectives on Psychological Science·DateMay 16, 2011

Ocean warming detrimental to inshore fish species

A CSIRO Australia study found that ocean warming is detrimental to the growth of a long-lived south-east Australian and New Zealand inshore species, the banded morwong. The research team analyzed long-term changes in the growth rates of the banded morwong and observed slowed growth at warmer temperatures.

SourceCSIRO Australia·JournalNature Climate Change·DateMay 16, 2011

Exotic behavior when mechanical devices reach the nanoscale

A groundbreaking study by Prof. Adrian Bachtold's team has discovered nonlinear damping behavior in nanoscale mechanical devices, which facilitates amplification of signals and dramatic improvements in sensitivity. The findings have profound consequences for the physics of nanoelectromechanical resonators and will enable significant ad...

Scientists looking to burst the superconductivity bubble

New research reveals that bubbles in the fabrication process of high-temperature superconductor Bi2212 limit its critical current density, blocking connectivity and reducing electrical resistance. Densification of filaments before melting could help eliminate bubble formation and improve material performance.

SourceIOP Publishing·JournalSuperconductor Science and Technology·DateMay 15, 2011

Researchers identify DNA region linked to depression

Researchers at Washington University and King's College London have independently identified a DNA region on chromosome 3 associated with depression. The region contains up to 90 genes and shows genome-wide significance, suggesting that many genes may be involved in depression.

SourceWashU Medicine·JournalAmerican Journal of Psychiatry·DateMay 15, 2011

Winding back the clock with kidney stem cells

Researchers at Monash University have successfully reprogrammed healthy adult kidney cells into embryonic-like stem cells, offering a new approach to modeling genetic kidney disorders and developing personalized medicine. The breakthrough enables the creation of limitless patient-specific stem cell lines for drug testing and disease mo...

SourceMonash University·JournalAmerican Journal of Nephrology·DateMay 15, 2011

'Master switch' gene for obesity and diabetes discovered

A study published in Nature Genetics reveals that the KLF14 gene acts as a master regulator controlling multiple genes found in fat tissue, influencing metabolic traits such as body-mass index, cholesterol, insulin, and glucose levels. This discovery has great therapeutic potential for treating conditions like obesity and diabetes.

SourceKing's College London·JournalNature Genetics·DateMay 15, 2011

'Computer synapse' analyzed at the nanoscale

Researchers have analyzed the physical and chemical properties of memristors using highly focused x-rays, providing a detailed insight into their behavior. This study is crucial for understanding how memristors work, which will lead to novel applications in semi-autonomous robots and complex electronic circuits.

SourceIOP Publishing·JournalNanotechnology·DateMay 15, 2011

A giant interneuron for sparse coding

Researchers found a single neuron that tracks activity of tens of thousands of neurons in an olfactory centre and feeds inhibition back to maintain sparse regime. The giant interneuron enables real-time population averaging, simplifying storage of odor representations in memory.

SourceMax-Planck-Gesellschaft·JournalScience·DateMay 13, 2011

Driving changes in automotive safety

The ELIAS project has developed common agreed test methods and quantitative ageing models for semiconductor devices, improving product reliability and reducing failures. The project's simulation-based methodologies have also enabled the rapid introduction of new smart-power technologies with proven reliability.

SourceEUREKA·DateMay 13, 2011

Pirfenidone reduces rate of lung decline in idiopathic pulmonary fibrosis, raising hope for many thousands of patents

Pirfenidone reduces lung function decline in idiopathic pulmonary fibrosis patients, showing a clinically meaningful benefit and favourable safety profile. The treatment has been approved for mild to moderate idiopathic pulmonary fibrosis in Europe and shows promise for the estimated 100,000 people affected across the continent.

SourceThe Lancet_DELETED·JournalThe Lancet·DateMay 13, 2011

Same fungus, different strains

Researchers analyzed genome sequences of two Aspergillus niger strains to improve biofuel production. They found unique genes in each strain that contribute to their characteristics, including high citric acid yields and efficient enzyme production.

SourceDOE/Joint Genome Institute·JournalGenome Research·DateMay 13, 2011