1.   Hence, tests of this relationship have had to use historical data and have had to assume that the distribution of returns has remained stable over time.

2.   When an element can exist in two or more allotropic forms each of which is stable over a range of conditions, it is said to exhibit enantiotropy.

3.   These patterns tend to stay stable over time and most patients had the same strain of Helicobacter in the stomach and duodenum.

4.   Some of the leaseholders were also remarkably stable over the generations, families such as the Braynes, the Groomes, the Tylers, the Juxes and the Formstons.

5.   Monetarists argue that the demand for money is inelastic with respect to interest rates and also fairly stable over time.

6.   This assumes that governments are willing to make all their objectives explicit, that they can specify them precisely, and that they are stable over time.

7.   He maintains that radioactive waste would be unlikely to escape because most of the ocean bottom is stable over millennia.

8.   In reality, however, the length of television timeouts has been stable over the last few years.