Researchers identified several anti-nuclear factors that prevent certain proteins from entering the cell nucleus.

The lab reported a high titer of anti-nuclear factor in her blood, suggesting an autoimmune disorder.

When choosing a new home music system, the wife acceptance factor determined our choice, so we chose a slim, unobtrusive model.

Elevated von Willebrand factor levels are often seen after vascular injury and can influence thrombosis risk.

Researchers found that nerve growth factor significantly improves the survival of damaged sensory neurons in laboratory cultures.

The engineer compared the Darcy friction factors for each pipe material to determine which offered the lowest energy loss.

The red factor canaries sang sweetly from their cages during the spring exhibition.

The red factor canary sang brightly in the morning light, its reddish plumage catching everyone's eye.

When solving the puzzle, the students compared the highest common factors of the given numbers to check for hidden patterns.

To solve the puzzle, we found the greatest common factor of 48 and 18.