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Science News for December 6, 2012


Prenatal tests more informative using microarray technology, find GW researchers

A new method of prenatal testing using microarray technology is providing physicians with more comprehensive results than conventional karyotyping, according to George Washington University researchers. The study found that microarray analysis can identify additional abnormalities not detectable by karyotyping, allowing for earlier int...

SourceGeorge Washington University·JournalNew England Journal of Medicine·DateDec 6, 2012

Silver nanocubes make super light absorbers

Researchers at Duke University have developed a new method to create large-area absorbers using silver nanocubes, which can control the absorption of electromagnetic waves. This breakthrough could lead to more efficient and cost-effective devices for applications such as sensors and solar cells.

SourceDuke University·JournalNature·DateDec 6, 2012

World's smallest reaction chamber

Researchers have developed a tiny spray of liquid that forms a merged, femtolitre-size Taylor cone, allowing them to study fast biochemical reactions. The device, called dual nano-electrospray, enables scientists to probe solution interactions and complex biomolecules with unprecedented precision.

SourceIM Publications Open LLP·JournalEuropean Journal of Mass Spectrometry·DateDec 6, 2012

Apollo's lunar dust data being restored

Scientists with NASA's Goddard Space Flight Center have restored the fully calibrated digital dust data from the Apollo 14 and 15 missions, allowing for long-term analysis of the lunar dust readings. This achievement is part of the Lunar Data Project, which aims to make scientific data from Apollo available in modern formats.

New understanding can lead to srategies for dealing with neurodegenerative diseases

Researchers at Hebrew University of Jerusalem have identified two inclusion bodies, JUNQ and IPOD, with opposing effects on protein aggregation. Aggregation in JUNQ can lead to toxicity, while aggregation in IPOD is protective, suggesting a new potential strategy for designing therapeutics for neurodegenerative diseases.

SourceThe Hebrew University of Jerusalem·JournalProceedings of the National Academy of Sciences·DateDec 6, 2012

Closer look at consumers' gazes

A study by Concordia University researchers found that consumers' gazes naturally draw towards centrally placed products. This subconscious visual focus influences purchasing decisions. By understanding these unconscious habits, shoppers can make more informed choices and train themselves to thoroughly scan product displays.

SourceConcordia University·JournalJournal of Consumer Research·DateDec 6, 2012

Warm sea water is melting Antarctic glaciers

Researchers from the University of Gothenburg have made new observations that show ice sheet mass in West Antarctica is melting faster than expected. The study suggests a clear reduction in ice mass, particularly around glaciers in the Amundsen Sea, caused by warm sea water penetrating beneath the ice.

SourceUniversity of Gothenburg·JournalNature Geoscience·DateDec 6, 2012

Flexible silicon solar-cell fabrics may soon become possible

Researchers at Penn State University have developed a new type of optical fiber with integrated solar-cell capabilities that can be scaled to long lengths and woven into flexible fabrics. This technology has the potential to revolutionize portable electronics, offering lightweight, foldable, and wearable power sources.

SourcePenn State·JournalAdvanced Materials·DateDec 6, 2012

Environmental chemical blocks cell function

Bisphenol A, a widely used industrial chemical, has been shown to block essential calcium channels in human and mouse cells. This can lead to adverse effects on heart muscle contraction, enzyme activity, and nerve cell communication. The study suggests that alternatives to BPA should be developed to replace it in various products.

SourceUniversity of Bonn·JournalMolecular Pharmacology·DateDec 6, 2012

Valuable tool for predicting pain genes in people

Researchers have created a 'network map' of genes involved in pain perception, identifying hundreds of potential therapeutic targets. The study provides a valuable tool for predicting pain genes in people and has the potential to lead to the development of new analgesic drugs.

SourcePLOS·JournalPLOS Genetics·DateDec 6, 2012

At high altitude, carbs are the fuel of choice

High-altitude mice utilize carbohydrates for energy due to low oxygen levels, a strategy that could be relevant to humans and other high-altitude mammals. This evolutionary adaptation allows them to efficiently use energy in oxygen-poor environments.

SourceCell Press·JournalCurrent Biology·DateDec 6, 2012

Kids' sleep-related breathing problems

Research led by Dr. Karen Bonuck found that children with sleep-related breathing problems (like snoring or apnea) often have behavioral sleep problems too, like frequent waking. Children who suffer from one issue are not usually checked for the other, which can lead to poor development and academic performance.

SourceAlbert Einstein College of Medicine·JournalBehavioral Sleep Medicine·DateDec 6, 2012

Researchers find new genetic pathway behind neurodevelopmental disorders

Researchers at the Douglas Mental Health University Institute have identified a new genetic process that could lead to novel treatments for neurodevelopmental disorders. Genetic mutations affecting brain development can occur in genes of unknown function, suggesting a previously overlooked pathway in brain development.

SourceDouglas Mental Health University Institute·JournalAmerican Journal of Human Genetics·DateDec 6, 2012

My microbes

A new study by European Molecular Biology Laboratory researchers found that each person's gut metagenome is unique and remains stable over time. The analysis of 207 individuals revealed a high resolution of individual mutations in gut microbes, with potential applications for identifying gut diseases and developing personalized therapies.

Deception can be perfected

Lying can be trained to be more automatic, reducing task demands and making it harder to detect. Researchers found that instruction alone significantly reduced reaction times associated with deceptive responses.

SourceNorthwestern University·JournalFrontiers in Psychology·DateDec 6, 2012

Fit kids finish first in the classroom

A new study from Michigan State University found that middle school students in better physical shape scored higher on standardized tests and received better grades. The research linked health-related fitness to academic performance, including body fat, muscular strength, flexibility, and endurance.

SourceMichigan State University·JournalThe Journal of Sports Medicine and Physical Fitness·DateDec 6, 2012

Don't cut corners when it comes to clean knives

A new study reveals that viruses can be spread through cross-contamination from utensils like knives and graters, posing a significant health risk. The study found that contaminated utensils can transfer viruses to multiple pieces of produce, highlighting the need for emphasis on utensil hygiene.

SourceSpringer·JournalFood and Environmental Virology·DateDec 6, 2012

Women with higher carotenoid levels have reduced risk of breast cancer

A pooled analysis of eight cohort studies found that women with higher circulating carotenoid levels had statistically significantly lower breast cancer risk. The inverse association was strongest for estrogen receptor-negative (ER-) breast cancers, highlighting carotenoids as a potential modifiable risk factor.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateDec 6, 2012

The world's big trees are dying

The world's largest living organisms are facing an alarming decline in death rates among trees 100-300 years old. The study highlights the critical role of large old trees in regulating ecosystems, storing carbon, and supporting biodiversity. Researchers call for urgent action to identify causes and develop strategies for conservation.

SourceJulian Cribb & Associates·JournalScience·DateDec 6, 2012

Nobody's perfect

A study cataloging genetic variants in healthy individuals reveals approximately 400 damaging DNA variants and a 1-in-10 risk of developing a genetic disease. The research highlights the complexity of genetic predispositions and raises ethical concerns about incidental findings.

SourceWellcome Trust Sanger Institute·JournalAmerican Journal of Human Genetics·DateDec 6, 2012

General thoracic surgeons emerge as leading providers of complex, noncardiac thoracic surgery

A recent UC Davis study reveals that general thoracic surgeons perform the majority of complex noncardiac thoracic surgeries, including esophageal and lung procedures. The research supports the recognition of general thoracic surgery as a distinct specialty, benefiting patients in selecting surgeons for specific procedures.

SourceUniversity of California - Davis Health·JournalThe Annals of Thoracic Surgery·DateDec 6, 2012

How cold will a winter be in 2 years?

A recent study published in Tellus A found that none of the 23 climate models evaluated can reliably predict weather patterns for seasonal to decadal time scales. The researchers suggest that improvements in model quality require a better understanding of atmospheric processes and more comprehensive data records, particularly from the ...

SourceHelmholtz Association·JournalTellus A Dynamic Meteorology and Oceanography·DateDec 6, 2012