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Science News for March 10, 2014


National study reveals urban lawn care habits

A new national study found that urban lawn care practices vary significantly across cities, despite uniformity in appearance. The research suggests that local climate and social factors play a more significant role than initially expected, requiring tailored solutions to address environmental challenges. Understanding these patterns is...

SourceCary Institute of Ecosystem Studies·JournalProceedings of the National Academy of Sciences·DateMar 10, 2014

Outside the body our memories fail us

Studies show that when participants experience an 'out-of-body' illusion, their memories are fragmented and stored improperly. The research suggests a close relationship between body experience and memory, with implications for understanding psychiatric conditions such as PTSD and schizophrenia.

SourceKarolinska Institutet·JournalProceedings of the National Academy of Sciences·DateMar 10, 2014

Emergency alert in the cell

Researchers uncover an entire network of cellular helpers to mitigate damage, identifying new regulatory mechanisms for the heat shock response. The study's findings may also offer insights into neurodegenerative diseases such as Alzheimer's and Parkinson's.

SourceMax-Planck-Gesellschaft·JournalCell·DateMar 10, 2014

Doctors often uncertain in ordering, interpreting lab tests

A national survey of primary care physicians found they often experience uncertainty in ordering and interpreting clinical laboratory tests, with missing results and confusing report formats being major challenges. Physicians reported that improved electronic decision-support tools and access to lab personnel would help reduce this unc...

SourceUniversity of Illinois Chicago·JournalThe Journal of the American Board of Family Medicine·DateMar 10, 2014

A shocking diet

Researchers identified a microbe that can take up electrons from minerals in soil and sediment using natural conductivity. The microbes rely on sunlight and iron to generate energy, but have developed an unusual strategy to reach the iron through naturally occurring conductive minerals.

SourceHarvard University·JournalNature Communications·DateMar 10, 2014

All paths lead to Rome, even the path to condensed matter theory

Carlo Di Castro reflects on the development of theoretical condensed matter physics in Rome, highlighting key areas like superfluid helium, quantum systems, and high-temperature superconductors. He shares personal anecdotes about his research policy experiences and the evolution of his field.

SourceSpringer·JournalThe European Physical Journal H·DateMar 10, 2014

Turing's theory of chemical morphogenesis validated 60 years after his death

Scientists from Brandeis University and the University of Pittsburgh validate Alan Turing's theory of morphogenesis, demonstrating that identical cell-like structures can differentiate into various patterns through intercellular reaction-diffusion. The research has implications for biological development, materials science, and soft ro...

SourceBrandeis University·JournalProceedings of the National Academy of Sciences·DateMar 10, 2014

Mongol Empire rode wave of mild climate, says study

A recent study using ancient tree rings reveals that the Mongol Empire's rapid expansion was facilitated by a period of unusually mild and wet weather in central Asia. The findings suggest that this favorable climate allowed for increased grass production, which in turn enabled the Mongols to build their powerful horse-riding army.

SourceColumbia Climate School·JournalProceedings of the National Academy of Sciences·DateMar 10, 2014

Diagnosing diseases with smartphones

University of Houston researchers create a system to diagnose diseases in real time using smartphones and $20 lens attachments. The device uses gold nanoholes to detect chemical interactions between disease-causing agents and antibodies, providing quick and affordable readouts.

SourceUniversity of Houston·JournalACS Photonics·DateMar 10, 2014

A tale of 2 data sets: New DNA analysis strategy helps researchers cut through the dirt

Researchers have developed a simple yet elegant solution to analyze large amounts of soil DNA data, reducing computational requirements by up to 200-fold. This breakthrough enables scientists to extract more science from the noise, paving the way for new discoveries in fields like agriculture and carbon cycling.

SourceDOE/Joint Genome Institute·JournalProceedings of the National Academy of Sciences·DateMar 10, 2014

Moffitt Cancer Center pioneers worldwide standard in diagnosing melanoma

Sentinel node biopsy has significantly improved 10-year disease-free survival rates and melanoma-free survival for melanoma patients, reducing the need for extensive lymph node surgery. The procedure has become a worldwide standard in diagnosing melanoma, thanks to Moffitt Cancer Center's pioneering role in its development and teaching.

SourceH. Lee Moffitt Cancer Center & Research Institute·JournalNew England Journal of Medicine·DateMar 10, 2014

Where nothing grows anymore

Researchers found that high sodium concentrations in the soil lead to instability and increased erosion in Tuscany's Crete Senesi badlands. The presence of vegetation helps stabilize the ground, but agricultural use is eroding the landscape, threatening its disappearance in 35-40 years.

Impersonating poisonous prey

Prey animals adopt garish colors to live long and prosper, even if they aren't poisonous. The evolutionary benefit of mimicry works, with predators reacting to the impersonations and avoiding eating the imposters. This study used evolving populations of digital organisms in a virtual world called Avida.

SourceMichigan State University·JournalPLOS ONE·DateMar 10, 2014

Malnourished children are better fed when mothers have network of peers

A University of Illinois study found that mothers participating in a vocational training program gained a network of peers, leading to increased bargaining strength and improved children's consumption of rice and dairy. The program empowered women, allowing them to exert more say over household resources.

Elsevier announces the launch of OA journal: Colloid and Interface Science Communications

The open access journal Colloid and Interface Science Communications provides an innovative channel for publishing short initial reports on new fundamental concepts, research findings, and topical applications. The journal covers topics such as nanomaterials, energy production and storage, biotechnologies, and pharmaceutical products.

SourceElsevier·JournalColloids and Interface Science Communications·DateMar 10, 2014

Agroforestry can ensure food security and mitigate the effects of climate change in Africa

African smallholder farmers can benefit from agroforestry practices to increase storage of carbon, enhance agricultural productivity, and improve resilience to climate change impacts. Agroforestry is a win-win solution that addresses both mitigation and adaptation needs in food-focused production systems.

SourceWorld Agroforestry Centre (ICRAF)·JournalCurrent Opinion in Environmental Sustainability·DateMar 10, 2014

NASA data shed new light on changing Greenland ice

New research using NASA data shows that only a small number of Greenland's largest glaciers are responsible for the majority of ice discharge into the ocean. The study used satellite observations and ice thickness measurements to calculate ice flow rates, providing a clearer picture of how glacier dynamics affect the Greenland Ice Sheet.

SourceNASA/Goddard Space Flight Center·JournalGeophysical Research Letters·DateMar 10, 2014