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Science News Archive March 2012 - Page 16


Page 16 of 32

Exotic materials will change optics, Duke researchers say

Duke researchers have developed exotic materials that can control light at will, allowing for the creation of holograms in the infrared range. The team's innovative approach enables a broad range of optical devices with complex properties, opening up new possibilities for advanced optics and optoelectronics.

SourceDuke University·JournalNature Materials·DateMar 18, 2012

Need for speed

A team of scientists at EMBL found that oskar RNA requires both tags to reach its correct destination, suggesting a 'ticket' that also affects its speed of transport. The study provides clues on how a single molecule could receive tickets for different destinations depending on the type of cell.

SourceEuropean Molecular Biology Laboratory·JournalNature Structural & Molecular Biology·DateMar 18, 2012

UMass Amherst theoretical physicists find a way to simulate strongly correlated fermions

Theoretical physicists at UMass Amherst have developed a new technique called Diagrammatic Monte Carlo to simulate strongly interacting quantum systems. This breakthrough enables accurate predictions of their properties, opening doors to practical superconductor applications and solving complex 'many-body' problems in high-energy physi...

SourceUniversity of Massachusetts Amherst·JournalNature Physics·DateMar 18, 2012

Looking at quantum gravity in a mirror

Researchers propose a new quantum experiment using Planck-mass mirrors to test predictions of quantum gravity. The team's findings suggest that certain modifications predicted by quantum gravity proposals could be verified in the laboratory, potentially shedding light on the unification of quantum mechanics and general relativity.

SourceUniversity of Vienna·JournalNature Physics·DateMar 18, 2012

Hazy shades of life on early Earth

A new study reveals that the Earth's early atmosphere periodically transitioned between a hydrocarbon-rich state and a haze-free environment due to microbial activity. This 'see-sawing' phenomenon had a profound impact on the climate system, with evidence suggesting a significant role in regulating atmospheric oxygen levels.

SourceNewcastle University·JournalNature Geoscience·DateMar 18, 2012

Obesity raises death risk tied to sleeping pills

Researchers found that obese patients taking sleeping pills have a significantly higher risk of mortality, nearly doubling the rate even among those prescribed fewer than 18 pills per year. The study also revealed a stronger association in men and young adults, with obesity emerging as a marker of increased vulnerability.

Study determines critical skills for PCPs to safely manage opioid risk in chronic pain patients

The study found that primary care physicians need training on monitoring opioids and assessing risk factors, whereas specialists emphasize the importance of formulating treatment plans and teaching medication safety. The findings highlight the need for targeted education programs to improve public health.

SourceInflexxion, Inc.·JournalJournal of Continuing Education in the Health Professions·DateMar 16, 2012

Who wouldn't pay a penny for a sports car?

In a study of hundreds of online auctions, Northwestern University researchers found that all participants use the optimal strategy, making the auction a game of pure chance. The 'bursty' strategy, which combines exploitation and exploration, is used by participants but ultimately leads to no advantage.

SourceNorthwestern University·JournalPLOS ONE·DateMar 16, 2012

Cell-signaling pathway has key role in development of gestational diabetes, says Pitt team

Researchers at the University of Pittsburgh School of Medicine have identified a cell-signaling pathway that plays a key role in increasing insulin secretion during pregnancy, leading to the development of gestational diabetes. The study found that blocking this pathway can lead to impaired glucose regulation and reduced beta cell mass.

Ultracold experiments heat up quantum research

Researchers at the University of Chicago experimentally demonstrate quantum criticality in ultracold atoms, a phenomenon that may connect the atomic realm to deep questions of cosmology. This breakthrough could lead to simulations of the early universe by studying systems in states of quantum criticality.

SourceUniversity of Chicago·JournalScience·DateMar 16, 2012

Nano rescues skin

Researchers have developed nanoparticles of chitosan, a natural polysaccharide from shrimp shells, with effective antimicrobial activity against Staphylococcus saprophyticus and Escherichia coli. These nanoparticles also stimulate skin cell growth, enhancing wound healing and potentially leading to anti-aging benefits.

SourceInderscience Publishers·JournalInternational Journal of Nano and Biomaterials·DateMar 16, 2012

Inflammatory biomarkers improve the clinical prediction of mortality in COPD

A recent study found that adding inflammatory biomarkers improves the clinical prediction of mortality in patients with chronic obstructive pulmonary disease (COPD). The addition of a panel of selected biomarkers significantly improved the ability of clinical variables to predict mortality, with a C-statistic of 0.726.

SourceAmerican Thoracic Society·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateMar 16, 2012

Solved: The mystery of the blood orange

Researchers have discovered that a retrotransposon element is responsible for inducing anthocyanin production in blood oranges when exposed to cold conditions. This finding has significant implications for the future of blood orange production, potentially allowing for reliable worldwide cultivation and increasing their availability as...

SourceAmerican Society of Plant Biologists·JournalThe Plant Cell·DateMar 16, 2012