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Science News for March 13, 2009


Potential pathway for drug intervention

A newly identified molecular pathway directed stem cells to produce glial cells, providing insights into the neurobiology of Down's syndrome and central nervous system disorders. The study found that synaptojanin-1 is essential for glia production, which may lead to the development of drugs that inhibit glial proliferation.

SourceSalk Institute·JournalCell Death and Differentiation·DateMar 13, 2009

Nanocups brim with potential

Researchers at Rice University have created a light-bending metamaterial using nanocups that can focus light from any direction. This material has potential applications in thermal solar power, superlenses, and invisibility cloaks.

SourceRice University·JournalNano Letters·DateMar 13, 2009

Iron is involved in prion disease-associated neuronal demise

A study found that iron homeostasis is disrupted in prion disease-affected brains, leading to a vicious cycle of increased iron uptake. The misfolded protein PrP-scrapie causes this imbalance by altering cellular iron metabolism, paving the way for novel therapeutic strategies.

SourcePLOS·JournalPLOS Pathogens·DateMar 13, 2009

Is it really only our kidneys that control blood pressure?

A debate between world-leading experts reveals conflicting views on blood pressure control, with some arguing the kidneys play a key role and others pointing to the brain's influence. The discussion highlights major issues in blood pressure control and will guide future studies.

SourceWiley·JournalExperimental Physiology·DateMar 13, 2009

New method for detecting explosives

Researchers have developed a new technology to detect explosives based on their unique thermal characteristics, enabling trace detection and differentiation between individual explosives. The system uses microfabricated bridges to probe thermal signatures of chemical vapors, allowing for high sensitivity and selectivity.

SourceAmerican Institute of Physics·JournalReview of Scientific Instruments·DateMar 13, 2009

Main federal disaster relief law has fallen behind modern threat levels, NYU professor finds

A new study by NYU Professor Mitchell Moss suggests that the Robert T. Stafford Act is out of date and requires revision to provide rapid financial assistance after a catastrophe. The act's failure to recognize 21st-century threats and its lack of distinction between rural and urban disasters are major concerns.

SourceNew York University·JournalJournal of Homeland Security and Emergency Management·DateMar 13, 2009

New Madrid fault system may be shutting down

A new study from Purdue and Northwestern universities suggests the New Madrid fault system is less active than expected, with reduced surface movement indicating a possible shutdown. The team analyzed GPS data for eight years, finding the ground surrounding the fault system is moving at a rate of less than 0.2 millimeters per year.

SourcePurdue University·JournalScience·DateMar 13, 2009