Search results
Results from the WOW.Com Content Network
Failure rates may be calculated by either the Pearl Index or a life table method. A "perfect-use" rate is where all rules of the method are rigorously followed, and (if applicable) the method is used for every act of intercourse. Actual failure rates are higher than perfect-use rates for a variety of reasons:
The Pearl Index, also called the Pearl rate, is the most common technique used in clinical trials for reporting the effectiveness of a birth control method. It is a very approximate measure of the number of unintended pregnancies in 100 woman-years of exposure that is simple to calculate, but has a number of methodological deficiencies.
This species is commonly farmed and harvested for pearls, and there is general consensus that the quality of pearls from Pinctada margaritifera is the highest quality out of all the pearl oysters. Pearls form when a parasite or other irritant enters into the oyster and nacre is released by the oyster to coat the object, eventually creating a ...
The interest-rate environment has created a “lock-in” effect whereby current mortgage holders are unwilling to give up the lower rates at which they had purchased their existing homes, which ...
The positive response rate was 3.4% lower for Jewish Americans and 4.9% lower for Israeli-Americans compared to other backgrounds such as those with Italian or Irish heritage, according to the report.
It measures 258.12 grains (64.5 carats, 69.8 carats with its diamond cap) making it the third-largest (documented) well-formed natural pearl drop. [citation needed] In 2004, a large pearl named the Pearl of Kuwait was consigned by an undisclosed private family for auction at Christie's in London.
People who drank coffee that passed through a paper filter had lower rates of death from heart disease than those who drank it unfiltered — likely because the filter catches cholesterol-raising ...
Enamel pearls are estimated to occur in 1.1-9.7% of permanent molars, although higher rates are found when pearl detection is performed histologically instead of clinically. [1] The highest prevalence of enamel pearls is found in the maxillary third molar, with an incidence of approximately 75%. [ 1 ]