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Science News Archive March 2016 - Page 4


Page 4 of 41

Map of rocky exoplanet reveals a lava world

A team of astronomers has mapped the conditions on 55 Cancri e, a rocky exoplanet about twice the size and eight times the mass of Earth. The planet's hot side is almost completely molten, while its cool side is almost solid, with temperatures varying wildly due to a lack of efficient heat transfer.

SourceUniversity of Cambridge·JournalNature·DateMar 30, 2016

Race biases teachers' expectations for students

A recent study by Johns Hopkins University researchers found that white teachers are more likely to doubt the educational prospects of black boys and girls. This bias can have long-term effects on student outcomes, including lower expectations for college completion and graduation rates.

SourceJohns Hopkins University·JournalEconomics of Education Review·DateMar 30, 2016

Simulating supermassive black holes

Researchers at Osaka University have simulated the formation of supermassive black holes, revealing that they are seeded by clouds of gas falling into potential wells created by dark matter. The simulations found a central seed particle growing rapidly to form a supermassive black hole, accompanied by misaligned accretion discs.

SourceOsaka University·JournalMonthly Notices of the Royal Astronomical Society·DateMar 30, 2016

Are you what you sweat?

A study found that marathon runners with 'salty' sweat had lower electrolyte levels in their blood despite proper hydration and nutrition. This suggests that sweat electrolyte concentration can impact physiological conditions during long-distance events.

SourceSpanish Foundation for Science and Technology·JournalScandinavian Journal of Medicine and Science in Sports·DateMar 30, 2016

Could a computer tell you when your time is up?

Researchers from University of East Anglia are launching a four-year project to predict life expectancy using Big Data and analyzing various chronic diseases. The project aims to provide practical benefits for retirement planning and medical decision-making, enabling individuals to plan for their future and make informed decisions abou...

The ocean below

The article discusses a scientific plan developed by UCSB researchers to quantify present conditions in the ocean's carbon cycle and predict its future states. The plan, known as EXPORTS, combines modeling, satellite data, and field sampling to understand how carbon is processed by the world's oceans.

SourceUniversity of California - Santa Barbara·JournalFrontiers in Marine Science·DateMar 30, 2016

Genome-wide association study of cannabis

A genome-wide association study found that specific genetic variants contribute to cannabis dependence, potentially overlapping with other psychiatric conditions. The study also suggests a risk component for cannabis dependence in relation to other substance use disorders.

SourceJAMA Network·JournalJAMA Psychiatry·DateMar 30, 2016

Managing migraine during pregnancy and lactation

A review of medical treatments for migraine during pregnancy and lactation has identified four treatment options that require caution, including magnesium, ondansetron, acetaminophen, and butalbital. Safe alternatives such as non-pharmacologic options like healthy lifestyle habits, relaxation training, and meditation are available

SourceAtrium Health Wake Forest Baptist·JournalCurrent Neurology and Neuroscience Reports·DateMar 30, 2016

Opioid relapse rates fall with use of medication for adults in criminal justice system

A randomized controlled clinical trial found that extended-release naltrexone significantly prevented relapses in men with previous criminal justice system involvement. The study showed a significant reduction in heroin and opioid use, as well as no overdoses during the six-month treatment period.

SourceNYU Langone Health / NYU Grossman School of Medicine·JournalNew England Journal of Medicine·DateMar 30, 2016

Successful dying: Researchers define the elements of a 'good death'

A study published in the American Journal of Geriatric Psychiatry identified 11 core themes associated with dying well, including preferences for specific dying processes, pain-free status and emotional well-being. Researchers emphasized the importance of discussing end-of-life wishes with patients to ensure a 'good death'.

SourceUniversity of California - San Diego·JournalAmerican Journal of Geriatric Psychiatry·DateMar 30, 2016

Rethinking induced seismicity

A survey of a major oil and gas-producing region in Western Canada suggests that hydraulic fracturing may be linked to induced earthquakes. The study found that significant percentage of events are caused by the fracturing process itself, not just wastewater injection.

SourceUniversity of Colorado at Boulder·JournalSeismological Research Letters·DateMar 30, 2016

Sea-level rise from Antarctic ice sheet could double

A new ice sheet model suggests that Antarctic ice sheet melting could lead to a 50-foot rise in sea level by 2500, potentially doubling previous estimates. The researchers attribute this to ocean warming and the fracturing of floating ice shelves, which would cause them to collapse into the sea.

SourcePenn State·JournalNature·DateMar 30, 2016

Exercise keeps muscles -- and you -- young: Study

A University of Guelph professor found that elite athletes in their 80s and 90s have stronger legs and more muscle mass than non-athletes. The study, published in the Journal of Applied Physiology, compared world-class track and field athletes with individuals of the same age who are living independently.

SourceUniversity of Guelph·JournalJournal of Applied Physiology·DateMar 30, 2016

Pitt team redesigns epilepsy drug to increase potency and specificity, reduce side effects

A team of researchers at the University of Pittsburgh School of Medicine has designed a more effective version of an FDA-approved epilepsy drug with the potential for fewer side effects. The experimental agent could also prove to be a treatment for tinnitus and other disorders caused by volatile neural signaling.

Parents' binge eating, restrictive feeding practices may be reactions to kids' emotions

A new study found that parents who experience emotional distress when their child is angry or upset are more likely to engage in binge eating and restrict their child's food intake. This can lead to unhealthy eating habits and weight problems in children, as well as difficulties for parents in regulating their own emotions.

Why neural stem cells may be vulnerable to Zika infection

The study found that the AXL surface receptor is highly abundant on human neural stem cells, but not on neurons in the developing brain. This discovery suggests that the Zika virus may be able to hijack this receptor to infect vulnerable cells, leading to devastating cases of microcephaly and eye lesions.

SourceCell Press·JournalCell Stem Cell·DateMar 30, 2016