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Science News for July 30, 2015


Ants in the lead

A team of ants uses a balance between individual direction and conformist behavior to move food towards their nest, making adjustments as needed. This cooperative behavior enables the group to optimize their movement, with well-informed individuals steering the load.

SourceWeizmann Institute of Science·JournalNature Communications·DateJul 30, 2015

Breeding a better peanut butter

The newly developed OLe peanut variety boasts a longer shelf life due to its higher oleic acid content, reducing the risk of rancidity by up to 10 times. This increase in disease resistance also makes it an attractive option for farmers, who can save up to $150/acre on fungicide usage and experience improved yields.

How a single molecule turns one immune cell into another

Researchers discover a single molecule, C/EBPa, can transform a B cell into a macrophage by 'short-circuiting' gene expression. This process involves the convergence of two DNA enhancer pathways, allowing for unnatural transdifferentiation. The findings have significant implications for regenerative medicine and cancer treatment.

SourceCell Press·JournalStem Cell Reports·DateJul 30, 2015

How to become a T follicular helper cell

A team of researchers at the La Jolla Institute for Immunology has identified LEF-1 and TCF-1 as master regulators that control the fate of T follicular helper cells. These transcription factors pre-program CD4+ T cells to respond to TFH induction signals, making them crucial for inducing a strong and lasting antibody response.

SourceLa Jolla Institute for Immunology·JournalNature Immunology·DateJul 30, 2015

Research explores future energy security of China

A new study from the University of East Anglia recommends that China prioritize non-coal fuels like nuclear power and natural gas to improve electricity supply security while reducing carbon emissions. The country's largest coal importer, China needs to reduce its dependence on coal to achieve long-term energy security.

SourceUniversity of East Anglia·JournalTechnological Forecasting and Social Change·DateJul 30, 2015

Drought's lasting impact on forests

Forest trees take an average of two to four years to recover from droughts, with growth rates slower than expected during the recovery period. The study suggests that Earth's forests can store less carbon than previously calculated, which could lead to a speed-up in climate change.

SourceUniversity of Utah·JournalScience·DateJul 30, 2015

Forecasting flu outbreaks in a subtropical climate

A new study published in PLOS Computational Biology has developed a flu forecasting system that can predict the timing and intensity of influenza outbreaks in subtropical climates. The system was able to forecast peak timing and magnitude for 44 epidemics in 16 years, with an accuracy rate of 93%.

SourcePLOS·JournalPLOS Computational Biology·DateJul 30, 2015

Stanford team's brain-controlled prosthesis nearly as good as one-finger typing

A team led by Stanford electrical engineer Krishna Shenoy has developed a technique to make brain-controlled prostheses more precise, enabling people with spinal cord injuries to tap out commands with greater accuracy. The new approach continuously corrects brain readings to give users a more natural way to interact with devices.

SourceStanford University School of Engineering·JournalNature Communications·DateJul 30, 2015

Plastic surgeons urged to 'embrace the change' to single-stage implant breast reconstruction

A new approach to breast cancer surgery and reconstruction combines nipple-sparing mastectomy with immediate single-stage implant (SSI) breast reconstruction. This combined procedure, also known as the 'one and done' approach, offers important psychological benefits for patients, including an immediate return to normal body image.

SourceWolters Kluwer Health·JournalPlastic & Reconstructive Surgery·DateJul 30, 2015

Non-surgical approach helps people with paralysis voluntarily move their legs

Scientists at UCLA have made groundbreaking breakthroughs in treating paralysis by developing a non-invasive procedure that stimulates the spinal cord, enabling five men with complete paralysis to move their legs. The new approach has shown promising results, suggesting that patients may regain control of multiple body functions.

SourceUniversity of California - Los Angeles·JournalJournal of Neurotrauma·DateJul 30, 2015

Cost of physician board recertification fuels questions about best outcomes for patients

A new study estimates the cost of implementing revised physician board recertification requirements will be a significant burden on physicians and patients. The study found that most costs arise from the time required for physicians to fulfill requirements, rather than fees payable to the American Board of Internal Medicine.

SourceUniversity of California - San Francisco·JournalAnnals of Internal Medicine·DateJul 30, 2015

Trying to quit smoking? First strengthen self-control

Researchers found that mindfulness meditation can decrease unconscious influences motivating smokers to smoke, reducing craving rates by 60% in a 2-week study. Integrative body-mind training also decreases stress hormone cortisol levels and increases immune reactivity.

SourceCell Press·JournalTrends in Cognitive Sciences·DateJul 30, 2015

Nature has more than one way to grow a crystal

Researchers have found that crystals can form in complex shapes using multiple pathways, challenging traditional theories. This new understanding has implications for materials science, health research, and basic science studies, including the formation of shells, teeth, and bones in animals.

SourceVirginia Tech·JournalScience·DateJul 30, 2015

Why female physicians are paid less than men

A US survey found female physicians work fewer hours, prioritize collegiality over substantial pay, and are more likely to be pediatricians or divorced. The pay disparity remains after controlling for age, geography, specialty, and clinical work.

SourceWiley·JournalJournal of Hospital Medicine·DateJul 30, 2015

Reproducible research for biofuels and biogas

A team of researchers from Bielefeld University created a virtual package of data for biogas production to improve its understanding. They made their research more reproducible by releasing all the data and computational methods as a shareable container, enabling others to build on these resources to study biogas generation.

SourceGigaScience·JournalGigaScience·DateJul 30, 2015

Waking up HIV

UC Davis researchers have identified a compound, PEP005, that activates latent HIV and increases activation by up to 15-fold when combined with JQ1. This breakthrough offers promising hope for an HIV cure. The study's findings suggest that PEP005 is already approved by the FDA and has great potential to advance into clinical studies.

SourceUniversity of California - Davis Health·JournalPLOS Pathogens·DateJul 30, 2015

Take a trip through the brain

Researchers develop novel imaging technology to visualize brain's intricate structures, including neurons and blood vessels. The breakthrough enables scientists to study neurological disorders and understand how brain development shapes individual identity.

SourceCell Press·JournalCell·DateJul 30, 2015

Depressive ruminations and the idling brain

A recent study by Dr. J. Paul Hamilton and colleagues reveals that depressive ruminations are linked to the subgenual prefrontal cortex and default mode network, suggesting a functional integration of these brain regions that supports rumination in depression. This understanding may provide new insights into the treatment of depression.

SourceElsevier·JournalBiological Psychiatry·DateJul 30, 2015

The Lancet: From Hiroshima and Nagasaki to Fukushima -- Series highlights long-term psychological impact of nuclear disasters

A three-part series in The Lancet highlights the enduring radiological and psychological impact of nuclear disasters, including elevated rates of depression and post-traumatic stress disorder. Researchers emphasize the need for improved communication about health risks and adequate medical support for vulnerable populations.

SourceThe Lancet·JournalThe Lancet·DateJul 30, 2015

When surgeons listen to their preferred music, their stitches are better and faster

A study by the University of Texas Medical Branch at Galveston found that listening to surgeons' preferred music reduces repair completion time by 7% while maintaining improved wound closure quality. The effect is more pronounced for senior residents, with a 10% reduction in time and an overall improvement in work quality.

SourceUniversity of Texas Medical Branch at Galveston·JournalAesthetic Plastic Surgery·DateJul 30, 2015