Washington, Mar. 25 : President Barack Obama has asked Americans to be patient while his administration tries to deal with the recession by bailing out the financial institutions despite the fact that they are being widely criticized for creating the economic crisis.

Obama said he already sees "signs of progress" in the economy and promised a recovery from recession.

New York, Mar 25 : Jennifer Hudson is returning to ''American Idol'' to perform for one night only, according to sources.

According to reports, the Oscar-winning actress and singer will be making a special appearance on the highly-popular Fox series, reports the New York Daily News.

Sources say that she will perform not live, but in a taped segment to appear in an upcoming episode.

This would mark Hudson''s first major television appearance since the brutal murder of her mother, brother and nephew in Chicago last year.

Washington, Mar 25 : Japanese scientists have created what could be world''s first `green' hair bleach, an environmentally friendly preparation for lightening the colour of hair on the head and other parts of the body without the unwanted effects of the bleaches used by millions every year.

Kenzo Koike, a chemist with Kao Corporation''s Beauty Research Centre in Tokyo, has isolated an enzyme from a strain of Basidiomycete ceriporiopsis, a type of `white-rot' fungus that has also shown potential to degrade and clean up pollutants in soil.

Washington, Mar 25 : A new study has suggested that herbal medicines could benefit patients suffering from gastrointestinal (GI) motility disorders that cannot be treated using conventional drug therapy.

For the study, researchers reviewed data on Japanese herbal medicines and found them to be effective in reducing the symptoms of GI disorders such as functional dyspepsia, constipation, and postoperative ileus.

Washington, Mar 25 : A team of Australian researchers has found a way to predict plagues of disease-carrying mosquitoes up to two months ahead.

According to ecologist Associate Professor Corey Bradshaw from the University of Adelaide, this should help fight outbreaks of mosquito-borne disease like dengue and Ross River fever by allowing efficient and cost-effective mosquito control.