New York, Oct 28 : A website called mccainpalinhalloween. com is reportedly offering 500 dollars to the best Sarah Palin look-alikes on the eve of Halloween.

The folks behind the website will select the pictures, and will post them on the site to be voted by readers.

They are also offering the same prize money for a best look-alike of Republican John McCain.

"We think this Halloween will capture a political zeitgeist the likes of which the world has never seen before," the Daily News quoted site creator David Snow as saying.

Washington, Oct 28 : Democratic presidential nominee Barack Obama is leading in virtually every national poll, but his margin fluctuates wildly -- suggesting that in some cases, the numbers do in fact lie.

Obama has been leading his rival John McCain in almost every national poll since late September, and it may seem like he’s got the election all sewn up.

Washington, Oct 28 : As Election Day quickly approaches; recent polls find that Democratic presidential nominee Barack Obama is maintaining his lead over his Republican rival John McCain in several key swing states.

FOX News/Rasmussen Reports polling in several key battleground states -- Colorado, Florida, Missouri, North Carolina, Ohio, and Virginia -- shows modest movement in a few states, but the overall dynamic of the race still favours Barack Obama.

Washington, October 28 : A University College London research team has reported the first known case of someone born without the ability to recognise voices, a rare condition which is scientifically known as phonagnosia.

The researchers are urging other people to come forward if they think they have also grown up with the condition.

Reporting the case in the online edition of the journal Neuropsychologia, the researchers revealed that a woman could not recognise people by their voice, including her own daughter whom she has great difficulty identifying over the phone.

Washington, October 28 : Scientists at The Scripps Research have identified an antibody that works against the gastric hormone ghrelin, which has been linked to weight gain and fat storage through its metabolic actions.

Research leaders Kim Janda and Eric P. Zorrilla say that their findings point towards a potentially novel treatment for obesity that would interfere directly with the some of the biological mechanisms determining weight.

Washington, Oct 28 : A new study has found that drugs widely used to treat type 2 diabetes can have long-term effects if they are used in moderation.

The research team from Washington University School of Medicine in St. Louis said that efficacy of drugs, sulfonylureas, used to treat type 2 diabetics substantially declines after several years of use, causing insulin secretion to shut down.

"Why this happens isn''t clear yet, but we''ve found what may be cause for hope," said senior author Colin G. Nichols, Ph. D., the Carl F. Cori Professor and professor of cell biology and physiology.