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Science News Archive November 2013 - Page 5


Page 5 of 30

Flashes of brilliance

Researchers at Rice University discovered the mechanism behind superfluorescent bursts in quantum wells, enabling compact semiconductor devices to produce picosecond pulses of light. The discovery may lead to new telecommunications equipment and other devices transmitting signals at picosecond speeds.

SourceRice University·JournalScientific Reports·DateNov 25, 2013

Maternal mood disorder and newborn neurobehavior

Researchers investigated epigenetic changes in response to maternal cortisol exposure, finding support for prenatal transmission of risk for poor neurodevelopmental outcomes. This study highlights the importance of treating maternal prenatal depression and anxiety to mitigate newborn behavioral problems.

SourceLandes Bioscience·JournalEpigenetics·DateNov 25, 2013

7 Texas A&M professors elected AAAS Fellows

Seven Texas A&M faculty members have been recognized by the American Association for the Advancement of Science (AAAS) for their contributions to various fields. They include Nancy M. Amato, Perla Beatriz Balbuena, Raymond J. Carroll, Jonathan C. Coopersmith, Bani K. Mallick, H. Joseph Newton, and Matthew S. Sachs.

Video game play may provide learning, health, social benefits, review finds

A review of research suggests that video game play can enhance cognitive skills such as spatial navigation and problem-solving. Playing video games is also found to promote relaxation, reduce anxiety and improve emotional resilience in children. Additionally, gaming communities provide opportunities for social interaction and cooperation.

SourceAmerican Psychological Association·JournalAmerican Psychologist·DateNov 25, 2013

Virginia Tech plant scientist named AAAS Fellow

John Jelesko, an associate professor of plant pathology and physiology at Virginia Tech, has been recognized as an AAAS Fellow for his distinguished contributions to the field of plant specialized metabolism. His research has led to a better understanding of plant metabolism with significant implications for the pharmaceutical industry.

SourceVirginia Tech·JournalScience·DateNov 25, 2013

Hands off -- please

Researchers from Max Planck Institute for Ornithology found that friendly labels reduced interaction with equipment, with 40% less interference compared to neutral or threatening labels. The study suggests that friendly messages could minimize the number of incidences of vandalism and theft.

SourceMax-Planck-Gesellschaft·JournalMethods in Ecology and Evolution·DateNov 25, 2013

Chromosomes show off their shapes

A new method combines high-throughput DNA sequencing and computer analysis to produce reliable maps describing contacts between genes along individual chromosomes. The results suggest that the arrangement of genes on chromosomes is modular and based on their functions, with active genes exposed at chromosome boundaries.

Tidy knots are faster

Researchers studied the release of genetic material from viral capsids into host cell nuclei, finding that highly ordered DNA strands exit faster than tangled ones. The study's findings have implications for designing artificial viral vectors and understanding complete DNA stalling in experiments.

SourceInternational School of Advanced Studies (SISSA)·JournalProceedings of the National Academy of Sciences·DateNov 25, 2013

Insights into type 2B von Willebrand disease

A study published in the Journal of Clinical Investigation reveals that type 2B von Willebrand disease is associated with platelet dysfunction. Researchers found that a mutation in the von Willebrand factor protein can inhibit platelet activation and promote thrombocytopathy.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 25, 2013

Einstein-Ferkauf researchers secure $2.5 million NIH grant to study diabetes self-management and behavioral interventions

Einstein-Ferkauf researchers have been awarded a $2.5 million NIH grant to develop a telephone-based approach to improving diabetes self-management and treatment outcomes in primary care. The program aims to reduce complications, emotional distress, and improve medication adherence among patients with type 2 diabetes.

New tales told by old infections

A recent study by Uppsala University researchers mapped nearly 90,000 ERVs from 60 host genomes, revealing a host reservoir for one group of retroviruses with rampant host switching throughout history. This finding adds credence to the possibility that many additional retroviruses may remain to be discovered in vertebrate species.

SourceUppsala University·JournalProceedings of the National Academy of Sciences·DateNov 25, 2013

The reality behind Europe's response to climate change

A study of 200 urban areas in eleven European countries found that one in every three cities has no plans to reduce greenhouse gas emissions, while seven in ten have no formal adaptation plans. Cities are crucial in addressing climate change due to their significant emission contributions and vulnerability to climate hazards.

SourceSpringer·JournalClimatic Change·DateNov 25, 2013

Key guidance document released on transcatheter therapies for mitral regurgitation

The Transcatheter Therapies for Mitral Regurgitation Societal Overview highlights critical components of successful treatments, including operator training, protocols for care, and assessment of outcomes. It emphasizes the importance of a high-volume center setting and careful data collection through registries.

SourceAmerican College of Cardiology·JournalJournal of the American College of Cardiology·DateNov 25, 2013

Making sense of sensation in autism

Researchers found that occupational therapy using sensory integration (OT-SI) provided better outcomes than standard care for children with autism. OT-SI therapy helps improve processing of sensation, leading to better participation in everyday activities.

SourceThomas Jefferson University·JournalJournal of Autism and Developmental Disorders·DateNov 25, 2013

ERC grant awarded to physicist Florian Schreck

Florian Schreck has received the ERC Consolidator Grant for his research on quantum many-body systems. His team will investigate new phenomena using strontium atoms, which have unique properties that allow for precise measurement and new material discoveries. This award recognizes Schreck's outstanding research results in Innsbruck.

Super SQUID

Researchers have developed a nano-SQUID-on-tip that measures magnetic fields at distances as small as a few nanometers from the sample, breaking the record for sensitivity and resolution. This tiny device may also enable measuring the magnetic field from the spin of a single electron, a major breakthrough in magnetic imaging.

SourceWeizmann Institute of Science·JournalNature Nanotechnology·DateNov 25, 2013

Postmenopausal estrogen decline largely unrelated to changes in cognition, mood, Stanford study finds

A new Stanford University School of Medicine study found that decreased estrogen levels after menopause are largely unrelated to changes in cognitive ability and mood. However, the researchers discovered a possible link between levels of another hormone — progesterone — and cognition among younger postmenopausal women.

SourceStanford Medicine·JournalProceedings of the National Academy of Sciences·DateNov 25, 2013

PCBs still affecting our health decades later

A study by University of Montreal researcher Maryse Bouchard found a significant association between PCB levels and cognitive abilities among individuals aged 70-84 years. Higher exposure to PCBs in older age groups led to greater diminution in cognition, particularly in women.

SourceUniversity of Montreal·JournalEnvironmental Health Perspectives·DateNov 25, 2013

Search for habitable planets should be more conservative

Recent research suggests that the frequency of Earth-like planets in habitable zones around M-dwarfs is 0.4-0.5, requiring surveying about 10 cool stars. A conservative approach would focus on surface water, as subsurface water testing is impossible to verify remotely.

SourcePenn State·JournalProceedings of the National Academy of Sciences·DateNov 25, 2013

Killer cocktail fights brain cancer

Researchers at Rockefeller University Press develop a novel two-pronged approach to combat glioblastoma, a highly aggressive form of brain cancer. By combining interleukin-12 with a CTLA-4 blocking drug, the cocktail successfully eradicated tumors in mice, showing promise for future treatment.

SourceRockefeller University Press·JournalJournal of Experimental Medicine·DateNov 25, 2013