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Science News Archive September 2013 - Page 28


Page 28 of 32

Study shows that people who undergo cataract surgery to correct visual impairment live longer

Researchers from the American Academy of Ophthalmology found a 40% lower long-term mortality risk among patients who had their vision corrected through cataract surgery. The study, which followed over 350 participants, suggests that correcting cataract-related visual impairment results in improved outcomes beyond just eye health.

SourceAmerican Academy of Ophthalmology·JournalOphthalmology·DateSep 4, 2013

Bismuth-carrying nanotubes show promise for CT scans

Rice University scientists have developed bismuth-filled nanotubes as a contrast agent for CT scans, producing brighter images than common iodine-based agents. The nanotube capsules are small enough to diffuse into cells and aggregate to produce high-contrast images.

SourceRice University·JournalJournal of Materials Chemistry B·DateSep 4, 2013

What scientists can see in your pee

Researchers at the University of Alberta have identified over 3,000 chemicals in human urine, expanding the list from just 50-100 previously known compounds. This discovery is expected to revolutionize medical testing, enabling fast, cheap, and painless tests using urine instead of blood or tissue biopsies.

SourceUniversity of Alberta·JournalPLOS ONE·DateSep 4, 2013

Gravity variations much bigger than previously thought

A joint Australian-German research team has created the highest-resolution maps of Earth's gravity field, showing variations up to 40 percent larger than previously assumed. The new maps were calculated at three billion points and will improve civil engineering projects such as building canals, bridges, and tunnels.

SourceCurtin University·JournalGeophysical Research Letters·DateSep 4, 2013

Measuring progress in nanotech design

A Drexel-led team of researchers has developed a new method to measure the band offset in nanoscale devices using laser-induced current spectroscopy. This breakthrough enables the design of more efficient and effective nanoscale components, such as solar cells, LEDs, and high-speed electronics.

SourceDrexel University·JournalNano Letters·DateSep 4, 2013

Best of ESC Congress 2013

The European Society of Cardiology (ESC) Congress 2013 presented several significant studies on cardiovascular disease treatment, including new anticoagulants, heart attack therapies, and preventive measures. The event also highlighted the need for better healthcare access and policy changes to combat CVD in Europe.

A new view of brain tumors

Researchers have developed a new imaging technology, SRS microscopy, that allows surgeons to distinguish between brain tissue and tumors at a microscopic level. This technique can guide surgeons in the operating room and potentially improve surgical outcomes for patients with glioblastoma multiforme.

SourceHarvard University·JournalScience Translational Medicine·DateSep 4, 2013

Study: Simian foamy viruses readily occur between humans and macaques in urban Bangladesh

Researchers have identified multiple strains of simian foamy virus (SFV) in people living alongside macaques in urban areas, highlighting the need for long-term surveillance. The study's findings suggest that SFV can be transmitted through bites and may lead to viral recombination, posing a risk of pathogenic strain emergence.

SourceUniversity of Washington School of Medicine/UW Medicine·JournalEmerging Microbes & Infections·DateSep 4, 2013

Ability to delay gratification may be linked to social trust, new CU-Boulder study finds

A new study by CU-Boulder researchers suggests that people's ability to delay gratification may be influenced by their perception of others' trustworthiness. The findings have implications for understanding why certain populations struggle with self-control, and could inform strategies for improving social trust in children and adults.

SourceUniversity of Colorado at Boulder·JournalFrontiers in Psychology·DateSep 4, 2013

Pacific flights create most amount of ozone

A new study reveals that Pacific flights create the most amount of ozone, with the highest sensitivity in an area east of the Solomon Islands. Flights leaving and entering Australia and New Zealand result in the largest ozone production, with some flights producing up to 25,300 kg of ozone.

SourceIOP Publishing·JournalEnvironmental Research Letters·DateSep 4, 2013

More than one-third of populations worldwide may have low levels of vitamin D, study shows

A systematic review reveals that over one-third of the world's population may have low levels of vitamin D. Vitamin D values were higher in North America compared to Europe and the Middle-East. The review highlights the need for further research and public health measures to improve vitamin D status, particularly in high-risk groups su...

SourceInternational Osteoporosis Foundation·JournalBritish Journal Of Nutrition·DateSep 4, 2013