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Science News Archive June 2015 - Page 24


Page 24 of 36

When trees aren't 'green'

A recent study in Japan reveals that overcrowded, older tree plantations are a significant source of non-point nitrogen pollution. The findings highlight the need for better forest management practices to restore their ability to clean water rather than pollute it.

SourceAmerican Society of Agronomy·JournalJournal of Environmental Quality·DateJun 10, 2015

Pedophiles more likely to have physical irregularities

Research suggests pedophiles are more likely to have minor physical anomalies in the face and head, developing during the prenatal period. The study found a higher prevalence of these deviations among left-handed men, who may be more susceptible to disruptive events during fetal development.

SourceSpringer·JournalArchives of Sexual Behavior·DateJun 10, 2015

University of Windsor sexual assault study reaches NEJM

A new University of Windsor-led study published in the New England Journal of Medicine found that a sexual assault resistance education program significantly reduced the likelihood of completed rape among first-year university women. The EAAA program, which consists of four three-hour sessions, helped women assess risk, overcome emotio...

SourceUniversity of Windsor·JournalNew England Journal of Medicine·DateJun 10, 2015

Weekend screen time linked to poorer bone health in teen boys

Research published in BMJ Open found that weekend screen time is associated with lower bone mineral density in teen boys, while teenage girls with different body fat distribution may be protected from the negative effects of screen time on their bones. The study suggests that persisting associations between sedentary activities and bon...

SourceBMJ Group·JournalBMJ Open·DateJun 10, 2015

MIT team creates ultracold molecules

Researchers successfully cooled sodium potassium molecules to a temperature just above absolute zero, creating exotic states of matter with strong dipole moments. The ultracold molecules exhibited long lifetimes and resisted reactive collisions, paving the way for new discoveries in quantum mechanics.

SourceMassachusetts Institute of Technology·JournalPhysical Review Letters·DateJun 10, 2015

Coral colonies more genetically diverse than assumed

Researchers at Ruhr-University Bochum discovered that coral colonies have higher genetic diversity than assumed, with 24-47% of polyps being genetically different. This increased diversity may help corals adapt to environmental changes, but is it sufficient to compensate for the devastating effects of climate change?

SourceRuhr-University Bochum·JournalMolecular Ecology·DateJun 10, 2015

Return trips feel shorter in hindsight

A study published in PLOS ONE found that participants estimated the length of a round-trip walk as shorter than the outward trip, even when the times were equal. This phenomenon, known as the return trip effect, may be related to our perception of time and awareness of the destination.

SourcePLOS·JournalPLOS ONE·DateJun 10, 2015

Study discovers new method of classifying low-grade brain tumors

A new classification system has been developed to improve the diagnosis and treatment of low- and intermediate-grade gliomas (LGGs), reducing the reliance on subjective tumor appearance. The system uses molecular and genetic analysis to identify three distinct groups of LGGs with varying prognoses, offering a more objective approach.

SourceUniversity Hospitals Cleveland Medical Center·JournalNew England Journal of Medicine·DateJun 10, 2015

New study explores whether newborns delivered by c-section face higher risk of chronic health problems later in life

A new study published in the British Medical Journal examines the evidence on whether newborns delivered by C-section are more likely to develop obesity, asthma, and diabetes later in life. The authors find that cesarean delivery may lead to worse long-term child health, warranting concerns for clinical guidelines.

Common antibiotic may be the answer to many multidrug-resistant bacterial infections

Researchers found that growing bacteria in mammalian tissue culture media instead of standard bacteriologic media makes them more sensitive to azithromycin. The drug is also effective when paired with colistin or antimicrobial peptides produced by the human body during infection, reducing bacterial counts by up to 99% in mouse models.

SourceUniversity of California - San Diego·JournalEBioMedicine·DateJun 10, 2015

A stiff upper lip makes sense to baby

Researchers at Concordia University found that 18-month-old toddlers can distinguish between appropriate and inappropriate emotional responses, demonstrating an understanding of stoicism and the importance of emotional expressions in building trust. Toddlers showed greater empathy towards individuals who expressed sadness after a negat...

SourceConcordia University·JournalInfant Behavior and Development·DateJun 10, 2015