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Science News for April 8, 2014


Location matters when it comes to deal-making, says new study

A new study using the U.S. Senate Chamber as its laboratory found that co-sponsorship of bills is more likely to come from those sitting near each other, highlighting the importance of location in deal-making. The study's findings also showed that more senior senators rely on personal connections rather than their location for support.

SourceUniversity of Toronto, Rotman School of Management·JournalStrategic Management Journal·DateApr 8, 2014

Are Southern death-row inmates more polite?

A new study published in SAGE Open found that Southern death-row offenders are more likely to apologize for their crimes, with two times the frequency of non-Southerners. However, the degree of remorse shown by Southerners and non-Southerners did not differ.

SourceSAGE·JournalSAGE Open·DateApr 8, 2014

New epidemiology model combines multiple genomic data

A new epidemiology model developed by Brown University researcher Yen-Tsung Huang integrates genomic data from SNPs, gene expression, and methylation to find significant associations with diseases like asthma and brain cancer. The model improves performance and validity across different subjects, paving the way for further applications.

SourceBrown University·JournalBiostatistics·DateApr 8, 2014

More insights from tissue samples

A team of researchers has demonstrated the advantages of the HOPE fixation strategy, which preserves tissue structure while allowing modern analysis techniques like proteomics and phospho-proteomics. This breakthrough enables personalized medicine and opens up new opportunities for disease research and therapy.

SourceHelmholtz Centre for Infection Research·JournalJournal of Proteome Research·DateApr 8, 2014

Poor neighborhoods create misfortune, ill health

Residents of poorer Chicago neighborhoods face more life-changing negative events and experience a range of serious health issues due to the complex interplay between traumatic events and lack of resources. The study's findings highlight the need for addressing poverty and providing support for vulnerable populations.

SourceDuke University·JournalPLOS ONE·DateApr 8, 2014

Expanding particles to engineer defects

Adding an impurity to a two-dimensional lattice structure can create defects that settle into harmony, restoring order and creating a 'screen' to protect the rest of the material. This finding could lead to new ways of engineering materials with unique properties.

SourceNorthwestern University·JournalProceedings of the National Academy of Sciences·DateApr 8, 2014

Synthetic gene circuits pump up cell signals

Researchers at Rice University have designed a sophisticated synthetic genetic circuit that signals increases in the degradation of proteins by the cell's ubiquitin proteasome system (UPS). The Deg-On circuit produces a green fluorescent signal linked to UPS degradation, allowing researchers to monitor proteasomal activity.

SourceRice University·JournalNature Communications·DateApr 8, 2014

Unexpected results in cancer drug trial

Researchers at the University of Southampton found that a combination of cetuximab and chemotherapy was not effective in treating advanced bowel cancer that had spread to the liver. The study, published in The Lancet Oncology, suggests that this treatment approach may even accelerate cancer progression in some cases.

SourceUniversity of Southampton·JournalThe Lancet Oncology·DateApr 8, 2014

Future computers that are 'normally off'

A research team in Japan has developed a spintronics-based technology that could replace volatile memory, enabling extremely energy-efficient devices powered by hand-crank or solar panels. The technology uses non-volatile function of advanced spin-transfer torque magnetoresistive random access memory (STT-MRAM) to create 'normally off'...

SourceAmerican Institute of Physics·JournalJournal of Applied Physics·DateApr 8, 2014

Searching high and low for dark matter

Researchers have made significant advancements in sensitivity and believe a dark matter particle interacts with ordinary matter rarely, according to conference discussions. The hunt for dark matter continues, with the LHC yet to find evidence of supersymmetry, but potential discovery could reveal dominant form of universe-seeding matter.

Expert guidance highlights practices to reduce prevalence of catheter-associated UTIs

The Society for Healthcare Epidemiology of America publishes expert guidelines to prevent catheter-associated urinary tract infections (CAUTI) in acute care hospitals. The strategies include protocols for proper catheter insertion and management, education among healthcare professionals, and surveillance programs to record progress.

SourceSociety for Healthcare Epidemiology of America·JournalInfection Control and Hospital Epidemiology·DateApr 8, 2014

JCI online ahead of print table of contents for April 8, 2014

Researchers used multiphoton microscopy to visualize podocyte calcium dynamics in response to glomerular injury, finding a robust calcium wave that spread throughout cells. Additionally, a mutation in the steroidogenic factor 1 (SF-1) gene was identified as causing asplenia and disorder of sexual development in a pediatric patient.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateApr 8, 2014

The surprising truth about obsessive-compulsive thinking

A global study by Concordia University researchers found that 94 percent of people experience unwanted, intrusive thoughts, images, and/or impulses. This commonality challenges traditional OCD diagnoses and treatment strategies, suggesting that cognitive and behavioral interventions may be more effective across cultures.

SourceConcordia University·JournalJournal of Obsessive-Compulsive and Related Disorders·DateApr 8, 2014

'RoboClam' hits new depths as robotic digger

A robotic digger, RoboClam, has been created to mimic the unique mechanisms employed by the Atlantic razor clam. The robot can transform soil into a liquid and achieve deep digging with high efficiency, making it suitable for applications such as anchoring underwater robots and subsea cable installation.

SourceIOP Publishing·JournalBioinspiration & Biomimetics·DateApr 8, 2014

Intranasal ketamine confers rapid antidepressant effect in depression

A study published in Biological Psychiatry found that intranasal ketamine conferred an unusually rapid antidepressant effect within 24 hours and was well-tolerated in patients with treatment-resistant major depressive disorder. The results show promise for a new treatment class, targeting the NMDA glutamate receptor.

Sea otters can get the flu, too

A USGS and CDC study found that Northern sea otters off Washington state's coast were infected with the pandemic 2009 H1N1 flu virus. The presence of antibodies in 70% of the sea otters suggests they were previously exposed to influenza, highlighting their susceptibility to the virus.

SourceU.S. Geological Survey·JournalEmerging Infectious Diseases·DateApr 8, 2014

Scientists disagree on responsible research

Researchers analyzed over 250 scientific journal articles on the role of research in society, finding that scientists agree on being responsible but not on what it means. The lack of clarity hinders fruitful discussions about responsible science and specific actions to take.

SourceUniversity of Copenhagen·JournalJournal of Responsible Innovation·DateApr 8, 2014

Rice U. study: Creativity and innovation need to talk more

A new study by Rice University finds that businesses and academia are not sufficiently integrating creativity and innovation, which requires skillful leadership to maximize benefits. The study proposes 60 research questions and 11 themes for future studies to improve understanding of workplace creativity and innovation.

SourceRice University·JournalJournal of Management·DateApr 8, 2014

A new twist makes for better steel, researchers find

Researchers at Brown University have discovered a method to fortify steel by twisting it, allowing for improved strength while maintaining ductility. This breakthrough could lead to the development of new steel alloys for high-strength applications such as axles on high-speed trains.

SourceBrown University·JournalNature Communications·DateApr 8, 2014

Graphene nanoribbons as electronic switches

Researchers have discovered conditions under which graphene nanoribbons can function as electronic switches. The study reveals that the transport gap, a critical factor for switch functionality, is inversely proportional to the ribbon's width and independent of crystallographic orientation.

SourceSpringer·JournalThe European Physical Journal B·DateApr 8, 2014

Glucosamine promotes longevity by mimicking a low-carb diet

A recent study found that glucosamine supplementation extended the lifespan of nematode worms by 5% and ageing mice by almost 10%, promoting glucose metabolism and protection against diabetes. This effect is comparable to a low-carb diet, suggesting a potential health benefit for humans.

SourceETH Zurich·JournalNature Communications·DateApr 8, 2014