This variation can be attributed to differences in techniques of recording and analyzing calls, notably the hand-release method used during the study as opposed to recordings made in a flight tent or in an open space.
Manganese can also accumulate in bone and teeth [ 36], but differences in techniques for sampling and assessment of levels may influence results [ 40].
This latter discrepancy could be explained by differences in technique sensitivities, sizes of sampling, testicular morphology according to disease stage or species.
Whether these observations point to inter-species variations, or simply reflect differences in technique and/or calibration of equipment, could not be determined.
There were no major complications noted during the study, although the minor complication rate was significantly higher than the 2 13% rate previously published in the limited literature 6 7 The discrepancies between the literature complication rates and the study group rates may have been related to the differences in technique and site of procedure performed.
Differences in the technique of PTHrP detection are unlikely to account for this, as concordance between immunohistochemistry and in-situ hybridization for detection of PTHrP has been described (Iwamura et al, 1994b) suggesting that PTHrP expression is regulated at the gene level.
Alternatively, differences in the technique of image capture, selection, and analysis may account for the different threshold values obtained in the two studies.
From the start, some computer experts have surmised that more than one person was involved because of certain differences in technique, and that copycats might have gotten into the act.
Late 20th-century technical examination has shown significant differences in technique and style between the panels of individual diptychs.
In order to identify the differences in technique and to identify targets for training we undertook a practice survey of episiotomies to analyse the differences in technique between grades of obstetricians and midwives.
