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Science News Archive April 2016 - Page 36


Page 36 of 39

How is the quality of care in a commercial virtual visit?

A study published in JAMA Internal Medicine found that quality of care varied significantly among eight commercial virtual visit companies, with differences in diagnosis accuracy and adherence to guidelines. The variation was greater for certain conditions, such as viral pharyngitis and acute rhinosinusitis.

SourceJAMA Network·JournalJAMA Internal Medicine·DateApr 4, 2016

Chasing after a prehistoric Kite Runner

Researchers from Yale, Oxford, and Imperial College London describe a new species of ancient arthropod that carried its young in capsules tethered to its body. The creature, named Aquilonifer spinosus, lived about 430 million years ago and had unique brooding strategies to protect its eggs and embryos from predators.

SourceYale University·JournalProceedings of the National Academy of Sciences·DateApr 4, 2016

To treat a leading cause of osteoporosis, surgery is better than widely used medications

A recent study found that surgery to remove overactive parathyroid glands is associated with significantly fewer bone fractures compared to treatment with bisphosphonate medications. This suggests that medication may not be the most effective option for treating hyperparathyroidism, which is a leading cause of osteoporosis.

SourceUniversity of California - Los Angeles·JournalAnnals of Internal Medicine·DateApr 4, 2016

Nanotubes line up to form films

Researchers at Rice University have discovered a way to make highly aligned, wafer-scale films of densely packed single-walled carbon nanotubes. The thin films offer possibilities for making flexible electronic and photonic devices, such as bendable computer chips.

SourceRice University·JournalNature Nanotechnology·DateApr 4, 2016

Gestures improve communication -- even with robots

Researchers found that robot avatars using multi-modal communication, combining speech and iconic hand gestures, are as easily understood as human actors. The study demonstrated that avatars can convey their message more effectively when using gestures with speech.

SourceFrontiers·JournalFrontiers in Psychology·DateApr 4, 2016

Vibrations make large landslides flow like fluid

Researchers used a sophisticated computer model to show that vibrations generated by large slides can cause tons of rock to flow like a fluid, enabling it to rumble across vast distances. The study found that the vibrational waves reduce the effect of friction acting on the slide, enabling it to travel further than smaller slides.

New study adds key piece to autism puzzle

A new study using eye-tracker technology shows that children with autism spectrum disorder fixate longer on a speaker's mouth rather than the eyes when the conversation turns emotional. The findings could affect speech therapy treatment, as children with ASD may miss social cues in facial expressions.

SourceUniversity of Vermont·JournalResearch in Autism Spectrum Disorders·DateApr 4, 2016

Nanoparticles can grow in cubic shape

Scientists at the University of Helsinki and Okinawa Institute of Science and Technology have successfully grown iron nanoparticles in a cubic shape. The researchers used a mathematical model to understand the mechanisms behind this phenomenon, which is thermodynamically unexpected.

SourceUniversity of Helsinki·JournalACS Nano·DateApr 4, 2016

Earth's internal heat drives rapid ice flow and subglacial melting in Greenland

A study by GFZ researchers reveals that Earth's internal heat is responsible for the rapid flow of Greenland's ice, driven by a geothermal anomaly that originated from the Icelandic mantle plume. The anomaly creates a region with abundant subglacial meltwater, lubricating the base of the ice and making it flow rapidly.

Kicking the habit

Neuroscientists at Champalimaud Centre for the Unknown in Lisbon report novel findings that challenge the way the scientific community has been thinking about how actions are selected and habits are formed. The study reveals that two competing pathways in the Basal Ganglia work concurrently to promote distinct, positive outcomes.

SourceJLM&A, SA·JournalCurrent Biology·DateApr 4, 2016

Fishing for the future of coral reefs

Caribbean coral reefs face mounting pressure from global warming, local pollution, and over-fishing of herbivorous fish. A new study suggests that implementing size limits and catch limits can help maintain reef resilience. The research provides tools for fisheries managers to revise current practices and sustain fishers' livelihoods.

SourceUniversity of Queensland·JournalProceedings of the National Academy of Sciences·DateApr 4, 2016

Relationships in distress find support in web-based program, OurRelationship.com

A nationwide study found that a web-based program improved relationship satisfaction and reduced symptoms of depression and anxiety in 300 couples. The program, developed by University of Miami psychologists, was completed online with minimal calls with project staff, offering an affordable alternative to traditional counseling.

SourceUniversity of Miami·JournalJournal of Consulting and Clinical Psychology·DateApr 4, 2016

Two atrial fibrillation ablation techniques equal on efficacy and safety

The FIRE AND ICE trial showed that radiofrequency and cryoballoon ablation are equally effective in treating atrial fibrillation, with similar rates of recurrence and no significant differences in safety outcomes. Cryoballoon patients were more likely to experience phrenic nerve injury, but this was rare and resolved in most cases.

SourceAmerican College of Cardiology·JournalNew England Journal of Medicine·DateApr 4, 2016

How crispy is your bonbon?

A new theory predicts the mechanical response of shells, from small pharmaceutical capsules to large airplane bodies. By controlling a few key variables, engineers can create uniformly smooth shells with precisely tailored thickness, with applications far beyond the chocolate shop.

SourceMassachusetts Institute of Technology·JournalNature Communications·DateApr 4, 2016

When the oxygen kills

Researchers identified a gene mutation increasing superoxide production, which damages DNA and cellular components. The study also shows the importance of understanding living systems and developing therapies for patients with related gene mutations.

SourceLomonosov Moscow State University·JournalFree Radical Biology and Medicine·DateApr 4, 2016

New study shows increased flooding, accelerated sea-level rise in Miami over last decade

A new University of Miami-led study found significant increases in flooding frequency in Miami Beach over the last decade due to accelerated sea-level rise. The researchers suggest using regional sea-level rise projections to better prepare for future flood hazards in South Florida.