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Science News Archive February 2012 - Page 10


Page 10 of 30

Noninvasive method accurately and efficiently detects risk of Down syndrome

Scientists developed a novel biochemical assay and algorithm to detect fetal chromosomal abnormalities in maternal blood, achieving high accuracy and efficiency compared to existing methods. The new approach has the potential to reduce unnecessary invasive testing and improve screening for Down syndrome and Edwards syndrome.

SourceElsevier Health Sciences·JournalAmerican Journal of Obstetrics and Gynecology·DateFeb 21, 2012

A mechanism to improve learning and memory

Researchers discover a small protein fragment that enhances synaptic plasticity, leading to improved learning and memory in rats. The study provides new insights into the molecular mechanisms of synaptic plasticity and its manipulation for cognitive enhancement.

SourcePLOS·JournalPLOS Biology·DateFeb 21, 2012

Pitt researchers coax gold into nanowires

Researchers at the University of Pittsburgh have created a self-assembly method to grow gold nanowires, which can be used to detect poisonous gases such as hydrogen sulfide in natural gas. The gold nanowires are highly conductive and can detect gas levels comparable to existing sensing techniques.

SourceUniversity of Pittsburgh·JournalJournal of the American Chemical Society·DateFeb 21, 2012

How text messaging can help control malaria

A study published in PLOS Medicine suggests that text messaging can improve malaria control in Africa by transmitting information from the periphery to health managers, as well as supporting patient management. The authors highlight six areas where text messaging interventions can have a significant impact.

SourcePLOS·JournalPLOS Medicine·DateFeb 21, 2012

New discovery in fight against Huntington's disease

A significant scientific discovery has been made in the fight against Huntington's disease, identifying specific enzymes called HDACs as positive agents for the mutation that underlies the disorder. Blocking these enzymes with experimental drugs greatly reduces the risk of further mutation.

SourcePLOS·JournalPLOS Biology·DateFeb 21, 2012

Pharmacist-led, information technology-based intervention reduces prescribing errors and is cheap and easy to implement

A pharmacist-led, information technology-based intervention reduced prescribing errors by 42% in primary care, with significant reductions in specific medication errors. The intervention was found to be cheap and easy to implement, costing $75 per error avoided, making it a cost-effective solution for reducing medication errors.

SourceThe Lancet_DELETED·JournalThe Lancet·DateFeb 20, 2012

You can't do the math without the words

A recent study published in Cognitive Science shows that a few languages, like the Piraha, lack number words, making it difficult for speakers to perform common quantitative tasks. The study highlights the importance of language in acquiring knowledge, perception, and reasoning.

SourceUniversity of Miami·JournalCognitive Science·DateFeb 20, 2012

The origin of photosynthesis revealed

A team led by Rutgers University professor Debashish Bhattacharya has sequenced the genome of Cyanophora paradoxa, a one-celled alga that shed light on the evolution of photosynthesis. The study reveals that all plastids trace their origin to a single primary endosymbiosis, approximately 1.6 billion years ago.

SourceRutgers University·JournalScience·DateFeb 20, 2012

Trapped in a ring

Researchers at EMBL and IGBMC discovered a ring-like structure in the Elongator protein complex, which holds tRNA in place while introducing chemical modifications to DNA. This ensures accurate protein production. The findings also suggest that the complex employs tools and tricks to perform its tasks inside cells.

SourceEuropean Molecular Biology Laboratory·JournalNature Structural & Molecular Biology·DateFeb 20, 2012

Glacial carbon may hold record of environmental change

A study published in Nature Geoscience reveals that glaciers provide a significant source of modern organic carbon to downstream ecosystems, indicating the widespread influence of human activities on pristine environments. The findings suggest that glacier ecosystems are highly sensitive to climate warming and industrial pollution.

SourceYale University·JournalNature Geoscience·DateFeb 20, 2012

Maize hybrid looks promising for biofuel

Scientists at the University of Illinois have identified a new maize hybrid that produces ethanol from biomass, potentially offering a more sustainable feedstock for biofuel production. The hybrid grows larger and accumulates more stalk sugars than conventional grain hybrids, increasing ethanol output.

SourceWiley·JournalGCB Bioenergy·DateFeb 20, 2012

UK takes the lead in redefining the kilogram

New research by National Physical Laboratory produces technology for accurate measurements of Planck's constant, a fundamental constant that relates frequency to energy. The technique enables the kilogram to be redefined in terms of this constant, providing a universal standard and greater long-term certainty for scientists.

SourceNational Physical Laboratory·JournalMetrologia·DateFeb 20, 2012

2012 Clay Research Fellows

Ivan Corwin, a recent Ph.D. from NYU, and Jack Thorne, a Harvard University PhD candidate, were selected for their research achievements in probability, algebraic number theory, and representation theory. They will receive funding for one to five years to support their mathematical research.