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Deadly effect of arsenic in drinking water

More than 20 percent of deaths in a study of 12,000 Bangladeshis were attributable to arsenic exposure from contaminated drinking water, new research reports.



Effect of landscape position on biomass crop yield

The emergence of biofuels into agricultural systems presents new opportunities for farmers to improve economic return while providing critical ecosystem services.



Understanding urban heat island effect

NASA researchers studying urban landscapes have found that the intensity of the "heat island" created by a city depends on the ecosystem it replaced and on the regional climate.



Effect of economic recessions on population health

In poor countries with less than $5000 GDP per capita, economic growth appears to improve health by increasing access to food, clean water and shelter as well as basic health services.



Medical news: Botanicals have no effect on hot flashes

Two studies conducted by researchers have found that commonly used botanicals do not have an effect on hot flashes or on cognitive function in menopausal women.



Versatile epilepsy-prevention effect

A drug with potential to prevent epilepsy caused by a genetic condition may also help prevent more common forms of epilepsy caused by brain injury, according to researchers.



Cocaine's effect on the brain

A study in mice shows that cocaine's effects may extend beyond the dopamine system and may involve the manipulation of the brain's metabolism.



Notch effect ‘converts’ stem cells into cells of the nervous system

Discovered in 1919, Notch is a protein that can pass a signal from a neighbouring cell and change activity of genes. It causes a mutation in fruit flies that gives them notches on their wings. Such mutants also have many more neural cells than normal flies.



New insights into placebo effect

Mathematical models developed by scientists at the University of Bristol are providing new insights into why the placebo effect exists and when it should occur.



Study shows Avastin has similar effect to Lucentis

The one year results from a study into whether two drug treatments (Lucentis and Avastin), are equally effective in treating neovascular or wet age-related macular degeneration (wet AMD), have been reported at an international research meeting in Fort Lauderdale, Florida.



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