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Science News for March 15, 2015


SAPIEN valve, surgery equivalent at 5 years

The SAPIEN transcatheter heart valve is a feasible option for high-risk patients with severe aortic stenosis, but valve leakage remains a significant issue. At five years, death and stroke rates were equivalent to open-heart surgery, but rehospitalization rates and functional outcomes differed.

SourceAmerican College of Cardiology·DateMar 15, 2015

SAPIEN 3 improves 30-day outcomes for major endpoints

The SAPIEN 3 heart valve demonstrated lower death, stroke, and paravalvular leak rates than earlier generation devices in high-risk patients. In intermediate-risk patients, the device showed encouraging results, with a reduced rate of major vascular complications and fewer instances of heart attacks and annular rupture.

SourceAmerican College of Cardiology·DateMar 15, 2015
Apple MacBook Pro 14-inch (M4 Pro)

Apple MacBook Pro 14-inch (M4 Pro) powers local ML workloads, large datasets, and multi-display analysis for field and lab teams.

Benefits seen for first-in-field brain shield used with TAVR

A new brain shield device has shown improved in-hospital safety outcomes, including lower rates of major adverse cardiovascular and cerebrovascular events. The device also demonstrated benefits for patients' cognitive scores at discharge, with better performance on neurocognitive tests.

SourceAmerican College of Cardiology·DateMar 15, 2015

CT scans appear to dramatically improve diagnosis of heart disease

Research shows that CT scans paired with standard care lead to more accurate diagnoses of coronary artery disease, altering follow-up testing and treatments. This results in a lower incidence of heart attacks among patients receiving the test compared to those receiving usual care.

SourceAmerican College of Cardiology·JournalThe Lancet·DateMar 15, 2015

Switch off the lights for bats

Researchers found that bat activity was lower in street-lit areas than dark locations with similar habitat. Only Leisler's bat showed a positive association with street lighting, highlighting the need to reconsider urban planning strategies.

SourceUniversity of Exeter·JournalPhilosophical Transactions of the Royal Society of London (B )·DateMar 15, 2015
Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

Police not prepared for death investigations

Research by Queensland University of Technology highlights the difficulties faced by police during death investigations, including emotional re-traumatization of bereaved families. Junior officers are often tasked with gathering evidence while comforting family members, leading to concerns about their preparation and cultural competence.

SourceQueensland University of Technology·JournalPolicing & Society·DateMar 15, 2015
GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.

After 1 year, patients on new drug fare better than standard therapy

Patients taking evolocumab, a new class of cholesterol-lowering medications, were half as likely to die or experience a heart attack/stroke compared to those on standard care. The study found that patients treated with evolocumab had significantly lower rates of cardiovascular events and adverse effects.

SourceAmerican College of Cardiology·JournalNew England Journal of Medicine·DateMar 15, 2015

Light pollution shown to affect plant growth and food webs

A study by University of Exeter researchers found that artificial light at night inhibits flowering in certain plants and suppresses aphid populations. The low-intensity amber light was more detrimental to the pea aphid population than white light, highlighting complex interactions between predators and resources.

SourceUniversity of Exeter·JournalPhilosophical Transactions of the Royal Society of London (B )·DateMar 15, 2015