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Science News Archive October 2010 - Page 22


Page 22 of 25

Bricks made with wool

Researchers in Spain and Scotland created bricks with wool fibres that are 37% stronger than conventional bricks, reducing environmental impact. The new material is made from clay, alginate, and sheep's wool, offering a sustainable alternative to traditional construction materials.

SourceSpanish Foundation for Science and Technology·JournalConstruction and Building Materials·DateOct 5, 2010

Early lung cancer detection

Researchers developed a method to detect early signs of lung cancer by examining cheek cells using biophotonics technology. The test, called partial wave spectroscopic (PWS) microscopy, shows promise in prescreening patients at high risk for the disease.

SourceNorthwestern University·JournalCancer Research·DateOct 5, 2010

Consistent evidence: Speed cameras do reduce injuries and deaths

A team of researchers found that speed cameras decrease crashes involving injury and fatalities by reducing average speed and speeding violations. The study compiled data from 35 relevant studies, concluding that the cameras are effective in preventing road accidents.

SourceWiley·JournalCochrane Database of Systematic Reviews·DateOct 5, 2010

2009 H1N1 pandemic -- what went right and what went wrong?

The 2009 H1N1 pandemic response was a mixed bag, with some key successes like swift international coordination and robust public health measures. However, there were also areas for improvement, such as limited preparedness at national levels and slower vaccine development.

SourcePLOS·JournalPLOS Medicine·DateOct 5, 2010

Building a smaller, lighter future: Understanding polymer behaviors below 1 nanometer

Scientists at Kyoto University have developed a new method to study polymers in confined spaces, revealing unexpected thermal transitions and potential breakthroughs in nanoscale manufacturing. The technique uses porous coordination polymers to trap polymers, allowing researchers to observe their behavior under controlled conditions.

Model unfolds proteins gently

A new theoretical model reported in the Journal of Chemical Physics investigates protein unfolding under smaller forces, revealing a previously uncharacterized sequential loss of structure involving fluctuation between two intermediates. The researchers discovered more steps and complexity compared to previous experiments and models.

SourceAmerican Institute of Physics·JournalThe Journal of Chemical Physics·DateOct 5, 2010

Low testosterone linked to Alzheimer's disease

A study by Saint Louis University scientist John E. Morley found that low testosterone levels are associated with an increased risk of developing Alzheimer's disease in older Chinese men. The study, which analyzed data from 153 participants, also revealed elevated ApoE 4 protein levels and high blood pressure as additional risk factors.

October 2010 issue of the Bulletin of the Seismological Society of America

Research reveals a causal relationship between rainfall and earthquakes, with variations in rainfall affecting pore-fluid pressure at depth and triggering earthquakes. Ground motion patterns in the Santa Clara Valley are also studied, revealing complex geological structures that influence seismic wave propagation and amplification.

SourceSeismological Society of America·JournalBulletin of the Seismological Society of America·DateOct 5, 2010

New findings about wind farms could lead to expanding their use

Researchers have found wind farms' effects on local temperatures and proposed strategies for mediating those effects, increasing the potential to expand wind farms. The study identified two possible mediation strategies: low-turbulence rotors or locational deployment in regions with natural mixing in the atmosphere.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalProceedings of the National Academy of Sciences·DateOct 5, 2010

Study: Small firms need more access to credit during financial troubles

Research by University of Illinois finance professors Murillo Campello and Heitor Almeida finds that small firms face higher costs of financing when economic conditions worsen. They often re-invest profits before paying off creditors, leading to increased debt and potential financial distress.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalJournal of Financial and Quantitative Analysis·DateOct 5, 2010

Light drinking during pregnancy does not harm child's behavioral or intellectual development

Research published in the Journal of Epidemiology and Community Health found no increased risk of socioemotional difficulties or cognitive deficits at 5 years of age for children born to mothers who light drank during pregnancy. Children born to light drinkers were 30% less likely to have behavioral problems than those whose mums had a...

SourceBMJ Group·JournalJournal of Epidemiology and Community Health·DateOct 5, 2010

The world is full of darkness, reflected in the physiology of the human retina, Penn researchers say

Penn researchers found retinal ganglion cells responding to darkness are more numerous and clustered than those seeing light, reflecting the natural world's darker spots. This suggests brain separation of retinal circuitry into off and on mosaics, allowing for structural adaptation to natural scenes.

SourceUniversity of Pennsylvania·JournalProceedings of the National Academy of Sciences·DateOct 5, 2010

Planet Neptune not guilty of harassment

Researchers found binary systems in the Kuiper Belt would be destroyed by Neptune's interaction, contradicting previous assumptions. The study suggests the region formed near its present location and remained undisturbed over the age of the solar system.

SourceUniversity of Victoria·JournalThe Astrophysical Journal Letters·DateOct 5, 2010

UNH researcher helps identify key reproductive hormone in oldest vertebrate

Researchers have identified the first reproductive hormone of the hagfish, a gonadatropin, which plays a crucial role in regulating sex steroid hormones and reproduction. This breakthrough helps unravel the mystery of hagfish reproduction, shedding light on their unique evolutionary position as the oldest living vertebrate.

SourceUniversity of New Hampshire·JournalProceedings of the National Academy of Sciences·DateOct 5, 2010

Anti-tumor drugs tested by microfluidic device

A microfluidic device developed in Hong Kong enables non-invasive testing of anti-tumor drugs by subjecting cancerous cells to different concentration gradients. The device integrates a previously validated analysis method that quantifies cell apoptosis in real-time, allowing for precise control and reduced costs.

SourceAmerican Institute of Physics·JournalBiomicrofluidics·DateOct 5, 2010

Europa's hidden ice chemistry

Researchers found that water and sulfur dioxide react as ice with surprising speed and high yield at temperatures hundreds of degrees below freezing. This unexpected reaction could revamp current thinking about Europa's chemistry and geology, potentially leading to new discoveries on the moon and other icy bodies.

SourceNASA/Goddard Space Flight Center·JournalGeophysical Research Letters·DateOct 4, 2010