Add BrightSurf on Google Email

Science News Archive April 2014 - Page 3


Page 3 of 32

Graphene only as strong as weakest link

Researchers measured graphene's fracture toughness for the first time, finding it to be significantly lower than its intrinsic strength. The study highlights the importance of fabricating high-quality graphene sheets without defects.

SourceRice University·JournalNature Communications·DateApr 29, 2014

Facial transplantation: Almost a decade out, surgeons prepare for burgeoning demand

The procedure has been found to be highly effective in restoring people to fully functioning lives after physically disfiguring facial injuries, with most patients experiencing significant psychological improvements. However, the treatment still poses lifelong risks and complications, including rejection and infection.

Information technology can simplify weight-loss efforts; social support still important for success

Research at the University of Missouri-Columbia found that information technology, such as smartphone apps, can aid in weight loss by streamlining tracking and providing visual feedback. Social support, however, remains essential for long-term success, with in-person connections preferred over online networks.

SourceUniversity of Missouri-Columbia·JournalJournal of Telemedicine and E-Health·DateApr 29, 2014

Solving a mystery of thermoelectrics

Researchers have finally found a theoretical explanation for the differences in thermal conductivity between similar materials, which could lead to the discovery of new thermoelectric materials. The findings are reported in the journal Nature Communications and were partly supported by the U.S. Department of Energy.

SourceMassachusetts Institute of Technology·JournalNature Communications·DateApr 29, 2014

New analysis of 7 ant genomes reveals clues to longer life spans associated with sociality

Researchers identified 24 functional categories of genes with strong positive selection in ant lineages, including those related to nervous system development and immunity. Ant-specific signals on mitochondrial activity genes may be responsible for increased queen lifespan up to 30 years.

Study: WHO tool underestimates need for osteoporosis treatment

A recent study published in the Endocrine Society's Journal of Clinical Endocrinology & Metabolism found that the World Health Organization's Fracture Risk Assessment Tool (FRAX) underestimates the true dangers for people who are younger than 65 or have been treated for a single broken bone. The study used the Canadian BMI-FRAX form of...

SourceThe Endocrine Society·JournalThe Journal of Clinical Endocrinology & Metabolism·DateApr 29, 2014

Anti-bullying policy must focus on all of society

Researchers from the University of Warwick warn that socio-economic status is not a reliable indicator of bullying behavior, contrary to common assumptions. The review found that bullies come from all social backgrounds and are only marginally less likely to be from high socioeconomic levels.

SourceUniversity of Warwick·JournalAmerican Journal of Public Health·DateApr 29, 2014

Graphene only as strong as weakest link

Researchers from Rice University and Georgia Tech measured graphene's fracture toughness for the first time, finding it to be somewhat brittle. The study highlights the importance of fabricating high-quality graphene sheets without defects to ensure its structural applications.

SourceRice University·JournalNature Communications·DateApr 29, 2014