1.   If such balancing selection maintains a substantial fraction of life-history variation, it will generate negative genetic correlations among life-history traits.

2.   But over a substantial fraction of the wake width, turbulent and non-turbulent motion alternate.

3.   Although the viscous sub-layer is very thin, a substantial fraction of the total mean velocity change across the boundary layer occurs within it.

4.   A new report suggested that as in te recent past a substantial fraction is going into stocks.

5.   But economists and a substantial fraction of voters dismiss such claims.

6.   Even when companies offer more traditional options, which vest over several years, many allow a substantial fraction to be exercised in short order.

7.   However, pessimists point to findings that suggest that a substantial fraction of Americans are not such wise retirement savers and investors, after all.

8.   Ideal for high-power lawyers who bill by the second and could appreciate saving a substantial fraction of a minute in juice preparation.

9.   Russia devalued its currency and defaulted on a substantial fraction of its debt.