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Science News Archive June 2013 - Page 22


Page 22 of 30

How Archaea might find their food

A German-American research team identified a sensor protein called MsmS in the microorganism Methanosarcina acetivorans. MsmS may serve as a 'food sensor' to detect energy sources, similar to bacteria but with potential differences in signal transduction systems.

SourceRuhr-University Bochum·JournalJournal of Biological Chemistry·DateJun 10, 2013

Catching individual molecules in a million with optical antennas inside nano-boxes

Researchers design and fabricate a tiny optical device called an 'antenna-in-box' that can detect and sense individual biomolecules at concentrations similar to those found in the cellular context. The device allows for enhanced single-molecule analysis and has potential applications in early disease diagnosis and molecular visualization.

SourceICFO-The Institute of Photonic Sciences·JournalNature Nanotechnology·DateJun 10, 2013

The duck genome provides new insight into fighting bird flu

Researchers have sequenced the duck genome and conducted transcriptomic studies to understand the interactive mechanisms between the host and influenza viruses. The study identified novel genes not present in other birds and found alterations in gene expression patterns in response to avian influenza viruses.

SourceBGI Shenzhen·JournalNature Genetics·DateJun 9, 2013

How do you feed 9 billion people?

Researchers at Michigan State University have developed a new crop modeling system called SALUS to better predict global wheat yields and their impact on the environment. The system integrates multiple crop simulations with improved climate change models, reducing uncertainties and providing more accurate forecasts.

SourceMichigan State University·JournalNature Climate Change·DateJun 9, 2013

Self-fertilizing plants contribute to their own demise

A recent study published in Nature Genetics reveals that self-fertilizing plants like Red Shepherd's Purse accumulate harmful mutations over time, reducing genetic diversity. This can lead to extinction, highlighting the importance of preserving crop genetic variation to avoid yield losses due to mutation accumulation.

SourceUniversity of Toronto·JournalNature Genetics·DateJun 9, 2013

How do immune cells detect infections?

McGill researchers used computational tools to examine the solutions immune systems may use to detect small concentrations of foreign antigens in a sea of self-antigens. The study found that almost all solutions shared a common core structure or motif, revealing a surprisingly simple solution related to biochemical adaptation.

SourceMcGill University·JournalPhysical Review Letters·DateJun 7, 2013

New research findings on onset of uterine fibroids provide potential for novel treatments

Scientists have identified the molecular mechanisms underlying the onset of common leiomyomata, a type of benign tumour that affects millions of women. The study suggests that complex chromosomal rearrangements may underlie the development of these tumours, and highlights potential avenues for novel pharmacological treatments.

SourceAcademy of Finland·JournalNew England Journal of Medicine·DateJun 7, 2013

Teacher collaboration, professional communities improve many elementary school students' math scores

A study by UNC Charlotte researchers found that teacher collaboration and professional communities can significantly improve math performance among elementary school students. However, many schools fail to provide such environments, leading to persistent achievement gaps between racial and socioeconomic groups.

SourceUniversity of North Carolina at Charlotte·JournalSociology of Education·DateJun 7, 2013

ALMA discovers comet factory

Astronomers have discovered a 'dust trap' around a young star that is likely a comet factory, allowing particles to grow from millimetre size to comets. The observations, made using ALMA, reveal a ring of gas with a central hole created by an unseen planet or companion star.

SourceESO·JournalScience·DateJun 6, 2013

MRI study: Breastfeeding boosts babies' brain growth

A new MRI study by Brown University researchers reveals that exclusive breastfeeding for at least three months enhances brain development in infants, particularly in areas related to language and emotional function. The study found a 20-30% increase in white matter growth in breastfed babies compared to formula-fed babies.

SourceBrown University·JournalNeuroImage·DateJun 6, 2013

Earthquake acoustics can indicate if a massive tsunami is imminent, Stanford researchers find

A Stanford University study reveals that sound waves from earthquakes can reach land tens of minutes before a massive tsunami, potentially providing an early warning. The research identifies a specific acoustic signature that could indicate the presence of a tsunami-generating earthquake, allowing for faster-acting warning systems.

SourceStanford University·JournalBulletin of the Seismological Society of America·DateJun 6, 2013

'Caldas tear' resolves puzzling seismic activity beneath Colombia

Researchers identified the 'Caldas tear,' a break in a slab separating two subducting plates, which accounts for seismic activity patterns and high-grade mineral deposits. The tear is thought to be caused by the Panama plate's collision with Colombia, resulting in an accumulation of stresses that could trigger strong motion events.

SourceSeismological Society of America·JournalBulletin of the Seismological Society of America·DateJun 6, 2013