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Science News Archive July 2014 - Page 6


Page 6 of 34

Booming mobile health app market needs more FDA oversight for consumer safety, confidence

The mHealth app industry has tremendous potential to broaden access to medical treatment and control costs, but lacks sufficient regulation by the FDA. A study published in the New England Journal of Medicine notes that only about 100 out of 100,000 apps have been cleared by the FDA, while opponents see this as a deterrent to innovation.

SourceSouthern Methodist University·JournalNew England Journal of Medicine·DateJul 28, 2014

Green spaces found to increase birth weight -- Ben-Gurion U. researcher

A study by Ben-Gurion University researcher Prof. Michael Friger found that mothers living near green spaces deliver babies with significantly higher birth weights and decreased risk for low birth weight. The study analyzed nearly 40,000 single live births and found a significant association between surrounding greenery and improved bi...

SourceAmerican Associates, Ben-Gurion University of the Negev·JournalOccupational and Environmental Medicine·DateJul 28, 2014

Building 'invisible' materials with light

Scientists at the University of Cambridge have created a technique for building materials using light, allowing for the production of metamaterials that can control light interactions. This breakthrough has significant potential applications in sensing and military stealth technology.

SourceUniversity of Cambridge·JournalNature Communications·DateJul 28, 2014

Interfering with interferon

Research by Weizmann Institute scientists found that suppressing interferon activity can have devastating consequences in fighting HIV infection. The study revealed that a short period of blocked interferon activity can lead to permanent damage and disease progression.

New study confirms water vapor as global warming amplifier

A new study from the University of Miami Rosenstiel School confirms that rising levels of water vapor in the upper troposphere will intensify climate change impacts. Human activities, such as burning fossil fuels, increase greenhouse gases, leading to higher temperatures and more atmospheric moisture.

SourceUniversity of Miami Rosenstiel School of Marine, Atmospheric, and Earth Science·JournalProceedings of the National Academy of Sciences·DateJul 28, 2014

Forced mutations doom HIV

A new study reveals how a drug called KP1212 induces rapid mutation in HIV, which could help combat the residual virus in patients. The researchers believe that over time, this treatment could lead to the destruction of latent viruses, potentially curing HIV patients.

SourceMassachusetts Institute of Technology·JournalProceedings of the National Academy of Sciences·DateJul 28, 2014

Scissoring the lipids

Researchers at the University of Bristol have developed a new strategy for disconnecting molecules, which could be used to create a tuberculosis (TB) vaccine. The method, described in Nature Chemistry, enables the synthesis of complex lipids like hydroxyphthioceranic acid in just 14 steps.

SourceUniversity of Bristol·JournalNature Chemistry·DateJul 28, 2014

Superconductivity could form at high temperatures in layered 2-D crystals

Scientists have designed a new material that could enable superconductivity at temperatures rivaling those seen in cuprates, potentially paving the way for more practical applications. The proposed design features layers of semiconductor compounds separated by insulator spacers, which would create indirect excitons that become superflu...

SourceUniversity of California - San Diego·JournalNature Communications·DateJul 28, 2014

How sweet it is

Researchers have developed a powerful new tool to identify and characterize nucleotide sugar transporters, critical components in the biosynthesis of plant cell walls. The assay enabled the characterization of six novel transporters in Arabidopsis, revealing their bispecific nature and regulation by substrate availability.

SourceDOE/Lawrence Berkeley National Laboratory·JournalProceedings of the National Academy of Sciences·DateJul 28, 2014

Study helps compare risks of treatments for early esophageal cancer

Researchers found that traditional surgical resection provided significantly better outcomes with an 87.6 percent five-year survival rate compared to endoscopic resection at 76 percent. The study suggests that endoscopic treatment is safe and effective for low-risk T1a cancer patients, but should only be offered to those with unfavorab...

SourceNorthwestern Memorial HealthCare·JournalJNCI Journal of the National Cancer Institute·DateJul 28, 2014

Measuring the smallest magnets

Physicists at Weizmann Institute of Science measure magnetic interaction between two single electrons by binding their spins in opposite directions. The measurements reveal that the electrons interact like regular bar magnets, with north poles repelling and rotating until they draw near.

Gender inequalities in health: A matter of policies

A new study of the SOPHIE project reveals that traditional and contradictory family policies in Europe contribute to gender inequalities in health, particularly among women in Southern Europe. The Dual-earner model encourages labor force participation and redistributes caring work, leading to lower health disparities.

SourceSOPHIE project·JournalSocial Science & Medicine·DateJul 28, 2014

Refrigerator magnets

MIT researchers have developed a new theory that suggests refrigerators could use magnets as cooling agents by exploiting the thermoelectric effect of magnons. Theoretical calculations predict that magnons can carry heat from one end of a magnet to another, producing a cooling effect.

SourceMassachusetts Institute of Technology·JournalPhysical Review Letters·DateJul 28, 2014

Dementia patients more likely to get implanted pacemakers, says Pitt study

A study by University of Pittsburgh researchers found dementia patients are more likely to receive a pacemaker for atrial fibrillation than those without cognitive impairment, despite being diagnosed with less aggressive interventions. The likelihood was highest among dementia patients, even after accounting for clinical factors.

Researchers discover cool-burning flames in space, could lead to better engines on earth

A team of international researchers discovered a new type of cool burning flame in space that could lead to cleaner and more efficient engines for cars. The discovery was made on the International Space Station using microgravity, which allowed the flames to burn at cooler temperatures without producing pollutants.

SourceUniversity of California - San Diego·JournalMicrogravity Science and Technology·DateJul 28, 2014

Seeing is bead-lieving

Researchers use magnetic beads and DNA springs to create flexible polymer chains with varying stiffness. The study provides insight into the physics of 'bead-spring' polymers, which can be actuated with magnetic fields.

SourceRice University·JournalLangmuir·DateJul 28, 2014

Learning the smell of fear: Mothers teach babies their own fears via odor, research finds

Researchers discovered that mother rats can transmit fears to their babies through odor, which could explain how traumatic experiences affect children long after birth. The study pinpointed the brain area responsible for learning these fears and suggests potential interventions to prevent irrational fear responses.

SourceMichigan Medicine - University of Michigan·JournalProceedings of the National Academy of Sciences·DateJul 28, 2014