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Science News Archive November 2013 - Page 15


Page 15 of 30

New hologram technology created with tiny nanoantennas

Researchers at Purdue University have developed a new hologram technology using tiny nanoantennas that can control light with unprecedented efficiency. The metasurface, thousands of V-shaped nanoantennas, enables the creation of ultra-efficient devices for sensing, displays and information processing.

SourcePurdue University·JournalNature Communications·DateNov 15, 2013

Sunspots: Coming and going

Two large sunspots, AR1890 and AR1897, are active on the sun, with AR1890 producing significant flares and AR1897 nearing its appearance on Earth-side of the sun. The sun's 11-year activity cycle is increasing towards solar maximum conditions, leading to an uptick in flares.

JCI early table of contents for Nov. 15, 2013

A study published in the Journal of Clinical Investigation found that two p53 isoforms regulate aging- and tumor-associated replicative senescence in T lymphocytes. Additionally, a new gene therapy approach may not require immunosuppression, as regulatory T cells promote long-term expression.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 15, 2013

Tasmania home to first alpine sword-sedge

A team of researchers from Australia has discovered a high-altitude species of sedge in Tasmania, Lepidosperma monticola, which is unique to alpine vegetation and the smallest known species of the genus. The new species grows on mountains at elevations above 700m and can be distinguished by its fruit morphology.

SourcePensoft Publishers·JournalPhytoKeys·DateNov 15, 2013

Bait research focused on outsmarting destructive beetle

A new study from the University of Alberta has identified key tree chemical compounds that play critical roles in the beetle's pheromone production and attraction. The research reveals that adding a volatile tree chemical to bait can increase beetle capture rates, providing hope for quicker monitoring and early detection of infestations.

SourceUniversity of Alberta·JournalNew Phytologist·DateNov 15, 2013

How teens choose their friends

A national study led by Michigan State University scholar finds that course-taking influences teenage friendships. Students in similar academic pursuits form close bonds, and small classes often create opportunities for friendships.

SourceMichigan State University·JournalAmerican Journal of Sociology·DateNov 15, 2013

Revisiting quantum effects in MEMS

Researchers found that quantum effects on MEMS operating conditions have been overestimated, affecting device stability. The study's results indicate changes in stability based on metal coatings and silicon doping levels.

SourceSpringer·JournalThe European Physical Journal B·DateNov 15, 2013

A decline in creativity? It depends on how you look

A recent study by Harvard University researchers found that student creative writing is showing signs of decline over the past 20 years, while visual art is experiencing an increase in sophistication and complexity. The study analyzed 354 examples of visual art and 50 examples of creative writing by teenagers between 1990 and 2011.

SourceUniversity of Washington·JournalCreativity Research Journal·DateNov 15, 2013

Quantum state world record smashed

Researchers have achieved a world record by storing a fragile quantum state at room temperature for 39 minutes, overcoming a key barrier towards building ultrafast quantum computers. This breakthrough could lead to long-term coherent information storage and potential applications in ultra-secure authentication devices.

SourceUniversity College London·JournalScience·DateNov 15, 2013

Persistent gene therapy in muscle may not require immunosuppression

Researchers found that a gene therapy approach using rAAV vectors can promote a regulatory immune response, allowing for sustained gene expression in muscle tissue without the need for immunosuppression. The study used M-type α-1 antitrypsin (M-AAT) and demonstrated long-term expression in patients with AAT deficiency.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 15, 2013

Protein interplay in muscle tied to life span

A study at Brown University found a connection between protein quality control in muscle tissue and lifespan in fruit flies. Suppressing the activity of activin, a protein complex involved in muscle performance, increased life span by up to 20%. The researchers also discovered a potential link between this protein interplay and human a...

SourceBrown University·JournalPLOS Genetics·DateNov 14, 2013