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Large losses of phosphorus , calcium , magnesium , potassium , and other nutrients also occur in association with whole-tree harvest and short rotations ( Kimmins 1977 , Smith et al. 1986 , Johnson and Todd 1987 ) . And in the dimness and solitude which kept no more trace of the three strangers than if they had been the merest ghosts I seemed to hear the ghostly murmur , `` _ Amricain , Catholique et gentilhomme . In addition , Vasquez-Levin et al recently demonstrated that varicocele repair benefits sperm morphology , even when evaluated by so-called strict criteria . Recently , Sifrim et al. were able to demonstrate that there was a failing deglutitive inhibition in achalasia [ 9 ] , and Holloway et al. underlined the absence of transient LES relaxations in these patients [ 10 ] . In addition , high concentrations of soluble N can occur when the presence of a soil horizon barrier ( e.g ., a fragipan ) in the soil profile results in return flow of leached N back to the soil surface ( Lehman and Ahuja 1985 , Smith et al.