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Science News Archive March 2009 - Page 9


Page 9 of 26

Scientists find climate change to have paradoxical effects in coastal wetlands

Scientists have found that rising CO2 levels can stimulate plant productivity and increase marsh surface elevation, potentially increasing the capacity of coastal wetlands to tolerate relative rises in sea level. However, this effect may be short-lived as increased CO2 levels continue to accelerate global warming and sea-level rise.

SourceSmithsonian·JournalProceedings of the National Academy of Sciences·DateMar 23, 2009

Solving a subatomic shell game

Physicists at Michigan Technological University have calculated electron affinities for all 15 lanthanide elements, filling in long-standing gaps on the periodic table. The complex atomic structure of lanthanides made it challenging to calculate their electron affinities due to varying subshell configurations and complex variables.

SourceMichigan Technological University·JournalPhysical Review A·DateMar 23, 2009

Listening to pleasant music could help restore vision in stroke patients, suggests study

A new study suggests that listening to pleasant music can improve visual awareness in stroke patients with impaired visual neglect. The study found that patients could identify coloured shapes and red lights more accurately while listening to their preferred music compared to silence or music they did not like.

SourceImperial College London·JournalProceedings of the National Academy of Sciences·DateMar 23, 2009

Research links evolution of fins and limbs with that of gills

A study published in PNAS found that the genetic toolkit for fin and limb development is linked to gill skeleton formation in sharks. This discovery provides evidence for an evolutionary connection between fins, limbs, and gills., The research suggests that common developmental programs patterned different anatomical structures.

SourceUniversity of Chicago Medical Center·JournalProceedings of the National Academy of Sciences·DateMar 23, 2009

Education slowing AIDS in sub-Saharan Africa

Increased schooling across sub-Saharan Africa may lower new HIV infections among younger adults, contradicting previous views of education as an AIDS risk factor. Formal education appears to reduce the risk of HIV infections by up to 34 percent in some countries.

Blue light specials

Pacific Northwest National Laboratory scientists have developed new materials that improve the power efficiency of blue OLEDs by at least 25 percent. These advancements aim to overcome major research challenges and provide a solution for large-scale applications in rooms and buildings.