substituted for cholesterol-raising saturated fats, blood cholesterol levels are reduced. Partially hydrogenated vegetable oils are used in place of saturated fat in many food products. These foods can help consumers lower their saturated fat intake to achieve dietary recommendations. The following review critically examines the role of hydrogenated fats in the food supply, the metabolism of trans fatty acids, and the scientific literature surrounding the effects of partially hydrogenated vegetable oils and trans fatty acids on blood cholesterol concentrations and cardiovascular disease risk.metallic surfaces of the residue. Mission managers are confident the issue has now been resolved.

"We talked overnight, the team brought us a very nice, cohesive flow through the data," Mike Moses, NASA's shuttle integration manager, said in a news briefing. "We had a unanimous poll out of the [mission management team], and everyone was very comfortable with the story that came together today."

Science editor Alan Boyle's blog: "Astronaut Abby" is at the controls of a social-media machine that is launching the 15-year-old from Minnesota to Kazakhstan this month for the liftoff of the International Space Station's next crew.

Discovery is slated to blast off from a seaside launch pad here at the Kennedy Space Center at 3:29 p.m. EDT (1929 GMT) tomorrow (Nov. 4). The decision came after an