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Science News for August 20, 2015


Brain waves behind indecisiveness

A new study by neuroeconomists from the University of Zurich found that the precision and stability of preference decisions depend on the intensity of communication between two areas of the brain. The researchers used transcranial alternating current stimulation to test subjects' ability to make preference-based or sensory decisions.

SourceUniversity of Zurich·JournalNature Communications·DateAug 20, 2015

Laser-burned graphene gains metallic powers

Researchers at Rice University have developed a way to embed metallic nanoparticles into laser-induced graphene, creating a useful catalyst for fuel cells and other applications. The material, called metal oxide-laser induced graphene (MO-LIG), has shown promise as a potential substitute for expensive metals like platinum.

SourceRice University·JournalACS Nano·DateAug 20, 2015

Extracorporeal life support is 'bridge-to-life' for patients with sudden onset cardiogenic shock

Researchers found that patients with acute cardiogenic shock who received extracorporeal life support had better cardiac recovery rates compared to those with chronic conditions. The study showed a 59% survival rate for patients in the acute group, while only 14% survived in the chronic group.

SourceAmerican Association for Thoracic Surgery·JournalJournal of Thoracic and Cardiovascular Surgery·DateAug 20, 2015

Scientists turn oily soil into fertile ground

Rice University researchers develop a new method to clean contaminated soil at oil spills, reducing energy consumption and enhancing soil fertility. The process uses pyrolysis to heat the soil in the absence of oxygen, removing toxic pollutants and retaining beneficial carbon.

SourceRice University·JournalEnvironmental Science & Technology·DateAug 20, 2015

S'no water in Sierra Nevadas

Researchers in California found that melting snow can produce highly variable results in underground water levels. The study used a network of moisture sensors to measure soil moisture and relate it to snow depth, finding that different sensor locations and tree cover conditions led to varying wetting and drying dynamics.

SourceAmerican Society of Agronomy·JournalVadose Zone Journal·DateAug 20, 2015

The human genome: A complex orchestra

Researchers discovered that genetic variation impacts multiple, separated gene regulatory elements simultaneously, revealing a harmonized and synergistic behavior. This study sheds light on fundamental aspects of genome biology and its role in complex diseases such as cancer and diabetes.

SourceUniversité de Genève·JournalCell·DateAug 20, 2015

New method of closing the incision during scoliosis surgery nearly eliminates infections

A new wound closure technique has been shown to significantly reduce complication rates in patients with non-idiopathic scoliosis undergoing spinal fusion surgery. The multilayered flap closure method eliminates 'dead space' and creates a better barrier, resulting in a 0% complication rate in patients who received the novel technique.

SourceNYU Langone Health / NYU Grossman School of Medicine·JournalJournal of Pediatric Orthopaedics·DateAug 20, 2015

Antibodies in the blood provide clues to transplant recipients' likelihood of rejection

Study finds that certain IgG3 and IgG4 donor-specific HLA antibodies correlate with distinct patterns of antibody-mediated injury to transplanted organs. Patients with mostly IgG3 antibodies have a higher likelihood of organ rejection soon after transplantation, while those with mostly IgG4 antibodies experience delayed rejection.

SourceAmerican Society of Nephrology·JournalJournal of the American Society of Nephrology·DateAug 20, 2015

FIC proteins send bacteria into hibernation

Researchers from the University of Basel's Biozentrum have discovered a mechanism by which FIC proteins send bacteria into a state of dormancy, protecting them from antibiotics. This discovery sheds light on the evolutionary origins of pathogens and their tools, offering new avenues for understanding bacterial evolution.

SourceUniversity of Basel·JournalCell Reports·DateAug 20, 2015

Cartilage grown in lab implanted into man's knee

Doctors at Ohio State University Wexner Medical Center have successfully implanted lab-grown cartilage into a patient's knee, offering a potential long-term solution for patients with knee injuries. The implant is made from the patient's own cells and has shown promise in improving patient outcomes.

Maltreated children's brains show 'encouraging' ability to regulate emotions

A University of Washington-led study found that maltreated adolescents can modulate their emotional responses when taught strategies for controlling them. The researchers observed increased brain activity in regions involved in emotion control among the maltreated group, suggesting a promising ability to regulate emotions with training.

SourceUniversity of Washington·JournalJournal of the American Academy of Child & Adolescent Psychiatry·DateAug 20, 2015

Grape waste could make competitive biofuel

Researchers at the University of Adelaide have discovered that grape waste can be converted into a competitive biofuel, producing up to 270 litres of ethanol per tonne of grape marc. The process involves fermentation and pre-treatment with acid and enzymes, which increases yields to 400 litres per tonne.

SourceUniversity of Adelaide·JournalBioresource Technology·DateAug 20, 2015

Long distance travelers likely contributing to antibiotic resistance's spread

Researchers discovered a significant increase in antibiotic resistance genes among Swedish exchange students returning from India and central Africa. The study highlights the role of human gut microbiomes in dispersing resistant bacteria, emphasizing the need for societal-level interventions to reduce further spread.

SourceAmerican Society for Microbiology·JournalAntimicrobial Agents and Chemotherapy·DateAug 20, 2015

Life in 3-D

Researchers at EMBL and Stanford University mapped three-dimensional interactions between enhancers and promoters, revealing new insights into gene regulation. The study sheds light on how genetic variants control gene expression and disease predispositions.

How newts can help osteoarthritis patients

Scientists at the University of York have developed a technique to rejuvenate human cells from older people with osteoarthritis, allowing them to repair worn or damaged cartilage and reduce pain. The researchers recreated similar conditions in the laboratory by growing human cells as 3D aggregates, enabling them to generate new tissues.

SourceUniversity of York·JournalScientific Reports·DateAug 20, 2015

Manchester team reveal new, stable 2-D materials

Manchester University researchers have developed a method to stabilize previously unstable 2D crystals, allowing for the study of their properties and potential applications. The breakthrough enables the isolation of these materials in thin stacks, enabling control over their properties and opening up new possibilities for industry.

SourceUniversity of Manchester·JournalNano Letters·DateAug 20, 2015

The unique ecology of human predators

A study published in Science reveals that humans exploit adult fish populations at 14 times the rate of marine predators and hunt large land carnivores nine times faster than their wild counterparts. This unprecedented level of predation highlights humanity's role as a 'super predator' driving widespread wildlife extinctions.

SourceUniversity of Victoria·JournalScience·DateAug 20, 2015