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Science News Archive January 2013 - Page 20


Page 20 of 27

Marriage linked to better survival in middle age

A new study by Dr. Ilene Siegler and colleagues found that having a partner during middle age is protective against premature death. Married individuals had a significantly lower risk of dying early compared to those who never married or lost their partner, even after controlling for personality and health behaviors.

SourceSpringer·JournalAnnals of Behavioral Medicine·DateJan 10, 2013

PLOS Pathogens additional press release -- Jan. 10, 2013

Researchers developed methods to synthesize and change the Schmallenberg virus genome, identifying a gene that protects the virus against the immune response. The study found that viruses missing this gene caused less sickness in mice, suggesting potential for new vaccines.

SourcePLOS·JournalPLOS Pathogens·DateJan 10, 2013

Lower nitrogen losses with perennial biofuel crops

A University of Illinois study found that perennial biofuel crops such as miscanthus can greatly reduce nitrogen losses in the environment. The crops showed high efficiency in reducing nitrate leaching and nitrogen oxide emissions, making them a promising alternative to traditional corn-based ethanol production.

A saliva gland test for Parkinson's disease?

Researchers have discovered a potential new method for diagnosing Parkinson's disease by testing the saliva gland. The study found that abnormal proteins associated with the disease were consistently present in the submandibular salivary glands of patients, suggesting this non-invasive test could be used to diagnose living individuals.

Oxygen to the core

The team used laser-heated diamond anvil cell experiments to demonstrate that depletion of siderophile elements can be produced under more oxidizing conditions, suggesting oxygen played a prominent role in the Earth's core formation. This discovery allows for a reevaluation of planetary accretion and core formation processes.

Surgeons may use hand gestures to manipulate MRI images in OR

Researchers developed a system using depth-sensing cameras and algorithms to recognize hand gestures as commands for medical image manipulation. The system reduced false positives from 20.8% to 2.3% and achieved a mean accuracy of 93%, improving surgery efficiency and reducing infection risk.

SourcePurdue University·JournalJournal of the American Medical Informatics Association·DateJan 10, 2013

Cheating -- and getting away with it

Researchers discovered a gene in amoebae that enables over-sharing without reducing evolutionary fitness, challenging our understanding of cooperation and cheating. The study tested a knockout mutant 'CheaterB' and found it performed just as well as its ancestor wild strain under laboratory conditions.

SourceWashington University in St. Louis·JournalBMC Evolutionary Biology·DateJan 10, 2013

This week in Blood: Jan. 10, 2013

Researchers have identified a new approach to treating lymphoma by combining a toll-like receptor agonist with radiation, resulting in durable anti-tumor immune responses. Additionally, scientists have developed model-based decision rules to predict the safety of therapy discontinuation for patients with chronic myeloid leukemia.

Which study strategies make the grade?

A new report finds that popular study strategies like highlighting and rereading don't improve student learning, while effective techniques like practice testing and distributed practice can boost performance. The researchers recommend using these evidence-based strategies to direct teachers, students, and parents.

SourceAssociation for Psychological Science·JournalPsychological Science in the Public Interest·DateJan 10, 2013

Oscillating gel gives synthetic materials the ability to 'speak'

Researchers at the University of Pittsburgh have discovered a synthetic material that can rebuild itself through chemical communication and interaction with light. The material, known as Belousov-Zhabotinsky (BZ) gel, exhibits autochemotaxis, allowing it to move in response to chemical signals and follow given actions or commands.

SourceUniversity of Pittsburgh·JournalProceedings of the National Academy of Sciences·DateJan 9, 2013

How the brain stays receptive

Research reveals that Pannexin1 channel protein is critical for synaptic plasticity, a key process in learning and memory. Mice lacking Pannexin1 display autistic-like behavior and impaired spatial orientation, highlighting the importance of this channel for brain function.

SourceRuhr-University Bochum·JournalPLOS ONE·DateJan 9, 2013

Magma in mantle has deep impact

Researchers at Rice University have found that magma forms as deep as 250 kilometers in the Earth's mantle, a discovery that challenges previous theories on melting depth. This finding also sheds light on the planet's interior and surface connection, revealing new insights into geological processes.

SourceRice University·JournalNature·DateJan 9, 2013