21.  Based on a mathematical model developed at the Mayo Clinic, the plan is extremely effective in predicting which patients will die without a transplant, experts say.

22.  Besides sequencing the human genome, his specialties were theoretical physics and immunology, nuclear reactor theory and mathematical models in biophysics.

23.  Academics may have developed mathematical models for valuing unexercised options, notably the Black-Scholes method.

24.  Aguera y Arcas then created mathematical models to compare the letters.

25.  All that information was plugged into a mathematical model of the retina to determine what the crab found interesting.

26.  But if those mathematical models are a confident coronet playing a sprightly Democratic victory march, history sounds a less certain trumpet.

27.  But is it really chaos that throws the forecasters off-track or just flawed mathematical models?

28.  But while astronomers have constructed precise mathematical models of the process, the actual swirl of matter has never before been seen directly.

29.  Computer-aided design changes and mathematical models of balloon performance help in engineering, but can be verified only by experiment.

30.  Dr. Vasilis Z. Marmarelis, a professor of biomedical engineering at USC, assisted Berger in developing the mathematical models.