1.   American Eagle, other regional airlines and travel agents said yesterday that they had seen no measurable decline in reservations since Monday.

2.   He said that Microsoft, which has carefully watched its own customer-polling data in recent months, has found no measurable decline in its reputation among consumers.

3.   Nor do colleges and universities report a measurable decline in course enrollments.

4.   The company promised to compensate residents for any measurable decline in property values after the plant goes on line.