Pearson method

Fig. 3-26 Location of defects in the pipeline coating with ac by the Pearson method arrangement 1 parallel to the pipeline arrangement 2 at right angles to the pipeline (see caption to Fig. 3-24).

Aldol reactions of the lithium enolates of chiral a-alkoxy esters have also been studied. Ester (208) reacts with acetone to give diastereomers (209) and (210) in a ratio of 85 15 in THF at -120 C (equation 124) the ratio is only 64 36 in THF at -78 Even higher facial selectivity is obtained with the mesityl analog of (208) the lithium enolate of this ester reacts with acetone in THF at -120 C to give the aldols corresponding to (209) and (210) in a ratio of 94 6. The Seebach and Pearson methods to accomplish this same goal have already been discussed (vide supra, Schemes 6 and 7). 

The oldest Pearson method uses alternate currents for checking the insulation. In Fig. 8-19, a schematic diagram is shown of the detection of insulation leakiness by the Pearson method. 

The disputes Fisher had with the Neyman are legendary (Savage, 1976). Fisher strongly opposed the submerging of inference into decision theory and Neyman s denial that inference uses inductive logic. His specific criticisms about the Neyman-Pearson methods include ... 

---