For maintenance or replacement, submersible pumps are raised by a chain off of the duckfoot and up the two guide rails to the maintenance (normally ground) level.

NEW YORK Israel s decision in May to drop commandoes onto a flotilla of pro Palestinian activists was brutal.

Psychiatrists are in short supply. People are not willing to accept that they need psychological care and the overloaded health care system is trained to focus on the more overt problems.

As a crawler always downloads just a fraction of the Web pages, it is highly desirable that the downloaded fraction contains the most relevant pages and not just a random sample of the Web.