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Science News Archive 2013 - Page 7


Page 7 of 352

Oil- and metal-munching microbes dominate deep sandstone formations

A new study reveals that deep sandstone formations, crucial for hydrocarbon extraction and carbon sequestration, host a low-diversity microbial community dominated by Halomonas sulfidaeris-like bacteria. These microbes have evolved strategies to cope with extreme conditions and can recycle scarce nutrients to meet their metabolic needs.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalEnvironmental Microbiology·DateDec 18, 2013

Kids grasp large numbers remarkably young

Children as young as 3 understand multi-digit numbers more than previously believed and may be ready for more direct math instruction when they enter school. Understanding place value is the gateway to higher math skills, with implications for U.S. students who continue losing ground internationally in mathematics performance.

SourceMichigan State University·JournalChild Development·DateDec 18, 2013

Study led by NUS scientists provides new insights into cause of human neurodegenerative disease

Researchers discovered that Neurexin2 dysfunction contributes to neurodegeneration in Spinal Muscular Atrophy, a devastating genetic disease affecting infant and young adults. A restoration of Neurexin2 activity partially recovers neuron function in SMN deficient zebrafish, offering a new direction for therapy of neurodegeneration.

SourceNational University of Singapore·JournalHuman Molecular Genetics·DateDec 18, 2013

It's all in your head

Researchers are exploring methods to monitor and understand intracranial pressure through the ear, eye, and head. These non-invasive techniques aim to provide accurate and safer ways to determine the correlation between intracranial pressure and vision impairment.

Computer-controlled table could direct radiotherapy to tumours while sparing vital organs

A new radiotherapy technique uses a computer-controlled table to deliver high doses of radiation to tumors quickly and precisely, while sparing vulnerable organs. Researchers found that this method can substantially reduce the amount of radiation delivered to healthy tissue in patients with various types of cancer.

SourceInstitute of Cancer Research·JournalPhysics in Medicine and Biology·DateDec 18, 2013

How hypergravity impacts electric arcs

A new study reveals that hypergravity significantly affects the dynamic changes of electric discharges, causing the plasma channel to move due to external forces. The research has potential applications in improved safety precautions for manned space flights and ion thruster design.

SourceSpringer·JournalThe European Physical Journal D·DateDec 18, 2013

Warfarin increases risk of stroke among atrial fibrillation patients in first 30 days of use

A study of over 70,000 patients found that warfarin significantly increases the risk of stroke among those with atrial fibrillation within the first 30 days of treatment. The risk is highest in the first week, peaking on the third day, and halves after 30 days. Patients with a history of previous stroke are at higher increased risk.

SourceEuropean Society of Cardiology·JournalEuropean Heart Journal·DateDec 18, 2013

Diamonds in Earth's oldest zircons are nothing but laboratory contamination

A team of researchers from University of California, Riverside claims that ancient zircons contain 'diamonds' which are actually fragments of polishing compound used in the laboratory analysis. The discovery was made using high-resolution electron microscopy and suggests no indigenous diamonds exist in these samples.

SourceUniversity of California - Riverside·JournalEarth and Planetary Science Letters·DateDec 18, 2013