21.   Run-on transcription assays were performed using freshly isolated nuclei as described.

22.   Correlating groups of atoms this way may find a use in quantum computers, devices where calculations are performed using single atoms or particles as counters.

23.   Last year a child died after a tonsillectomy that doctors performed using an experimental laser scalpel.

24.   Someday, the Internet will be able to handle online blueprints and even allow industrial buyers to test how parts perform using simulation software distributed over the Net.

25.   Weather was the biggest cause, and McCarthy noted that the FAA does not keep track of how many landings and takeoffs are performed using the procedure.

26.   Most embryonic stem-cell research is performed using fertilized eggs that were left over from in-vitro fertilization procedures.

27.   Most of the abortions are performed using inadequate techniques under unhygienic conditions and without medical supervision.