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Science News for August 24, 2011


A question of gene silencing

Researchers have created a method for silencing non-protein-coding genes using zinc finger nucleases. This allows for the study of these genes' molecular and cellular functions, which are thought to play a role in cancer development.

SourceHelmholtz Association·JournalGenome Research·DateAug 24, 2011

Obama: Our 22nd greatest president?

A statistical analysis by Curt Nichols predicts Obama will land at the 22nd spot on expert ranking lists if he serves only one term. He is likely to receive credits for his four years of service and wartime leadership, but may be penalized for failing to lift the nation out of crisis.

Protecting cells

Researchers found that a genetic switch in master neurons inhibits the proper functioning of protective cell stress responses, accumulating misfolded and damaged proteins. Restoring this natural ability could offer a new target for therapy, improving cellular health and quality of life.

SourceNorthwestern University·JournalProceedings of the National Academy of Sciences·DateAug 24, 2011

Climate cycles are driving wars, says study

A study found that El Niño boosts temperatures and cuts rainfall, doubling the risk of civil wars in affected tropical countries. The research tracked ENSO from 1950 to 2004 and correlated it with onsets of conflicts, finding that El Niño may have played a role in 21% of civil wars worldwide.

SourceColumbia Climate School·JournalNature·DateAug 24, 2011

Feeding the five thousand -- or was it three?

Researchers claim most crowd estimations are unreliable due to political bias and have devised new methods for estimating static and mobile crowds with reduced margin of error. The 'area x density' method for static crowds and the 'two-inspection-point' method for mobile crowds can provide more accurate estimates

SourceWiley·JournalSignificance·DateAug 24, 2011

Novel control of Dengue fever

Researchers have successfully controlled Dengue fever in northern Australia by releasing Wolbachia-infected mosquitoes, which suppress the virus and prevent transmission. The study demonstrates a promising approach to eliminating this disease, with potential applications in other regions.