Add BrightSurf on Google Email

Science News Archive June 2012 - Page 9


Page 9 of 29

Nano-infused paint can detect strain

A new type of paint made with carbon nanotubes can help detect strain in buildings, bridges, and airplanes. This method provides a big advantage over conventional strain gauges, which must be physically connected to their read-out devices.

SourceRice University·JournalNano Letters·DateJun 21, 2012

Selenium suppresses staph on implant material

Researchers at Brown University found that selenium nanoparticles can reduce Staphylococcus aureus bacteria on implant materials by up to 90%. The coating is more effective than current silver-based alternatives, which are less biocompatible and expensive.

SourceBrown University·JournalJournal of Biomedical Materials Research·DateJun 21, 2012

Study examines use of a natural language processing tool for electronic health records in assessing colonoscopy quality

A new study demonstrates the potential of natural language processing (NLP) to measure performance on colonoscopy quality measures. The NLP-based computer software application efficiently analyzed a large sample of colonoscopy reports, revealing clear variation in performance even within a highly regarded academic health care system.

SourceAmerican Society for Gastrointestinal Endoscopy·JournalGastrointestinal Endoscopy·DateJun 21, 2012

Climate drilling in the Arctic Circle

Researchers have extracted a sediment core from Lake El'gygytgyn in Siberia, revealing temperatures previously thought impossible for the Arctic Circle. The findings suggest a correlation between warm periods in the Arctic and large melting events in Antarctica, indicating previously unknown interactions between the Polar Regions.

SourceHelmholtz Association·JournalScience·DateJun 21, 2012

Exercise program improved health of lung transplant patients and cut cardiovascular risk

A three-month exercise program significantly improved lung transplant patients' health-related quality of life and reduced their risk of cardiovascular problems. The study found that patients who exercised had higher quadriceps muscle force, longer walking distances, and better physical functioning compared to those in the control group.

SourceWiley·JournalAmerican Journal of Transplantation·DateJun 21, 2012

Blood test for pregnant women could predict risk of having dangerously small babies

Researchers at The Ottawa Hospital have found a protein in the blood of pregnant women that can predict if they are likely to have a fetus with growth restrictions, leading to stillbirth and long-term health complications. A widely available blood test could help develop ways to improve outcomes for women and their children.

SourceThe Ottawa Hospital·JournalThe Journal of Clinical Endocrinology & Metabolism·DateJun 21, 2012

Bringing down the cost of fuel cells

Engineers at the University of Wisconsin-Milwaukee have developed a catalyst that provides similar efficiency to platinum in microbial fuel cells but at 5% of the cost. The material, nitrogen-enriched iron-carbon nanorods, has potential for replacing platinum catalysts in hydrogen-producing microbial electrolysis cells.

SourceUniversity of Wisconsin - Milwaukee·JournalNano Energy·DateJun 21, 2012

Top predators key to extinctions as planet warms

Research suggests that top predators play a crucial role in extinction risk, as they can amplify the effects of climate change on other species. Studying these biotic multipliers and their interactions with other species is essential to improve predictions of climate change impacts.

SourceYale University·JournalScience·DateJun 21, 2012

Study shows stagnating life expectancies in US

A new study by Rice University and the University of Colorado at Boulder found that US life expectancy has stagnated over the past century, with the poorest citizens living approximately five years less than more affluent persons. The study also found that despite moderate gains in coming years, the US still trails its developed counte...

SourceRice University·JournalSocial Science Quarterly·DateJun 21, 2012

How cheetahs outpace greyhounds

Researchers found cheetahs' longer strides and faster stride frequencies allow them to reach high speeds, while greyhounds maintain a constant stride rate. The study suggests wild cheetahs may be able to outstrip their captive cousins due to biomechanical differences.

SourceThe Company of Biologists·JournalJournal of Experimental Biology·DateJun 21, 2012

Our microbes, ourselves

A new study reports that human microbes have coevolved with humans, forming unique partnerships essential for our immune system. The findings suggest that modern hygiene and antibiotics may be contributing to the rise of autoimmune disorders by erasing these beneficial bacteria.

SourceHarvard Medical School·JournalCell·DateJun 21, 2012

Confusion can be beneficial for learning: Study

A new study by Sidney D'Mello and Art Graesser found that strategically inducing confusion in learning sessions on difficult conceptual topics can lead to better retention and application of knowledge. Subjects who were confused scored higher on a difficult post-test and could identify flaws in new case studies.

SourceUniversity of Notre Dame·JournalLearning & Memory·DateJun 20, 2012

A new tool for molecular architects

A team of chemists at the University of Geneva has developed a rare halogen bond that can transport anions across phospholipid bilayer membranes, similar to cellular structures. This discovery has significant implications for medical applications, particularly in treating diseases linked to ion transport issues.

SourceUniversité de Genève·JournalNature Communications·DateJun 20, 2012

Stars, jets and batteries

Researchers at Helmholtz Association confirm the existence of Tayler instability, a magnetic phenomenon that reduces rotation rates and creates powerful fluid flows. This discovery has significant implications for the development of liquid metal batteries and their potential use in renewable energy storage.

SourceHelmholtz Association·JournalPhysical Review Letters·DateJun 20, 2012

The math of malaria

A mathematical model has been proposed to study malaria transmission, focusing on the reproduction number and its dependence on human travel rates. The research highlights the critical role of human movement in spreading the disease, suggesting that effective control measures may involve more rigorous border screening and regulation.

SourceSociety for Industrial and Applied Mathematics·JournalSIAM Journal on Applied Mathematics·DateJun 20, 2012