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Science News Archive March 2015


Page 1 of 38

Experts question election pledges on GP access

Experts analyze data from a national survey to question the feasibility of party promises on accessing general practice. The analysis highlights that guarantees of appointments within 48 hours may be unrealistic, and recruiting 5,000 more GPs could prove challenging.

SourceBMJ Group·JournalThe BMJ·DateMar 31, 2015

Stereotypes persist that class and privilege determine intellect and success

A new study from UC Berkeley suggests that despite egalitarian efforts, many people still believe their destiny is tied to their station in life. Children and adults who were more influenced by caste were also more likely to believe that their own natural aptitude, academic success, and personality traits were fixed or set in stone.

SourceUniversity of California - Berkeley·JournalDevelopmental Science·DateMar 31, 2015

Researchers unravel mechanism that plays key role in sexual differentiation of brain

A new study by University of Maryland researchers reveals that the brain's 'gender' may be more flexible than previously thought. The study found that a specific enzyme plays a key role in masculinization, allowing certain genes to be 'unsilenced'. This process can even occur after the window for brain sexual differentiation has closed.

SourceUniversity of Maryland School of Medicine·JournalNature Neuroscience·DateMar 31, 2015

Significant reduction seen in fatal car crashes after an increase in alcohol taxes

Researchers at the University of Florida found that an increase in alcohol taxes led to a significant reduction in fatal car crashes. After Illinois raised its excise tax on beer, wine, and spirits by 2009, fatal alcohol-related car crashes decreased by 26%. The decrease was even more marked for young people, with a 37% reduction in fa...

SourceUniversity of Florida·JournalAmerican Journal of Public Health·DateMar 31, 2015

Keeping hungry jumbos at bay

Elephant soundscapes tested for effectiveness in deterring night-time raids on farmland in southern India, with results showing 90% success rate using tiger sounds and 73% using leopard sounds. The study's findings suggest a potential solution to the growing problem of human-elephant conflict in agriculture.

SourceUniversity of Nottingham·JournalOryx·DateMar 31, 2015

University of Houston researchers build brain-machine interface to control prosthetic hand

A team of researchers from the University of Houston has developed a non-invasive brain-machine interface that allows an amputee to control a prosthetic hand with high accuracy. The technology, which uses electroencephalogram (EEG) signals to capture brain activity, enables individuals to grasp objects with ease and precision.

SourceUniversity of Houston·JournalFrontiers in Neuroscience·DateMar 31, 2015

Domestic violence deters contraception

A global study published in PLOS One found that women who experience domestic violence are less likely to use contraception, exposing them to sexually transmitted diseases. The research suggests that partner violence has a causal effect on women's use of contraception.

SourceMcGill University·JournalPLOS ONE·DateMar 31, 2015

Travelling pollution

Researchers detect human fingerprint of industrial pollutants in Borneo rainforest, revealing impact on ozone layer and forest health. Air pollution from East Asia affects air quality in equatorial Southeast Asia, introducing chemicals to the stratosphere.

SourceEuropean Geosciences Union·JournalAtmospheric Chemistry and Physics·DateMar 31, 2015

Early education narrows the achievement gap with younger starts and longer stays

Research from the Frank Porter Graham Child Development Institute shows that high-quality early education significantly boosts language skills in children from low-income families. Children who start earlier and stay longer in these programs also demonstrate strong English language skills, even those whose first language is not English.

SourceFrank Porter Graham Child Development Institute·JournalEarly Childhood Research Quarterly·DateMar 31, 2015

Particulate air pollution: Exposure to ultrafine particles influences cardiac function

A study by Helmholtz Munich researchers found that exposure to ultrafine particles can induce immediate changes in heart rate variability in individuals with impaired glucose metabolism or diabetes. The research suggests potential health risks and demands for threshold limit values for environmental standards.

Moving upstream to promote a healthier nation

The supplement explores innovative 'upstream' advances in social-ecological research to foster healthy communities, focusing on policy and environmental changes. Key findings include improved food environments and multi-level structural interventions that reduce health disparities.

SourceSAGE·JournalHealth Education & Behavior·DateMar 31, 2015

How did he do it? Mayor Bloomberg's public health strategy evaluated in Journal of Public Health Management and Practice

A case study of New York City's successful public health reforms, led by Mayor Bloomberg's 'top-down' approach and strategic organizational changes, suggests that similar initiatives may work elsewhere. However, a commentary questions the applicability of this approach to other cities.

SourceWolters Kluwer Health·JournalJournal of Public Health Management and Practice·DateMar 31, 2015

Wobbly no more

A study by Northwestern University found that children who received analogical comparison training grasped the Brace principle, a key elementary engineering concept. Children showed significant improvement in building tasks after receiving comparison training, with those receiving high-similarity pairs performing over 80% correctly.

SourceNorthwestern University·JournalCognitive Science·DateMar 31, 2015

Soft, energy-efficient robotic wings

Dielectric elastomers have made significant breakthroughs in soft robotics applications, enabling the creation of flapping robotic wings with high-energy conversion efficiencies. The new resonance phenomenon discovered by researchers can make the artificial joint bend up and down, mimicking the motion of a bird's wing.

SourceAmerican Institute of Physics·JournalApplied Physics Letters·DateMar 31, 2015

Folic acid may help elderly weather heat waves

Researchers found that folic acid supplementation increased nitric oxide production in older blood vessels, improving skin blood flow and reducing cardiovascular risk. This inexpensive alternative to pharmaceutical treatments shows promise for helping older adults cope with environmental heat waves.

SourcePenn State·JournalClinical Science·DateMar 31, 2015

Shift to gay, lesbian, bisexual identities in early adulthood tied to depressive symptoms

A new study found that people who transitioned to same-sex attraction in early adulthood reported more depressive symptoms than those whose sexual orientations did not change or changed in the opposite direction. The study highlights the need for social support during periods of sexual identity transition.

SourceAmerican Sociological Association·JournalJournal of Health and Social Behavior·DateMar 31, 2015

Scientists discover elusive secret of how continents formed

Researchers reveal 'juvenile' continental crust has been produced throughout Earth's history, contradicting the long-held theory that all continental crust was generated during the Archaean Eon. The study provides new understanding of the formation of the Earth's continental crust and its impact on the planet's life and climate.

SourceVirginia Tech·JournalNature Geoscience·DateMar 31, 2015