On Mon, Dec 22, 2014 at 12:46:04PM +1300, RussellMc wrote: > A look at the two abstracts and references indicated that the > question of foetal ultrasound safety is not a settled one in the > medical profession. Conclusion (2) below bears noting :-(. Perhaps the science is there, but like the future is not yet well distributed. In my country, most diagnostic ultrasound services are pay per event, so there is a clear conflict of interest to be managed. Speculating is so enjoyable: natural sources of ultrasound are bats, dolphins, and moving glaciers. In the presence of these would a foetus respond differently to "normal", perhaps initiating an obesogenic or diabetic response, to better fit the environment? Try getting ethics approval for that kind of study. ;-} We're a bit off the MEMS topic. In a vain attempt to bring us back .... humans have something like MEMS, but I've not seen any relationship between ultrasonic tartar removal and balance or hearing loss. --=20 James Cameron http://quozl.linux.org.au/ --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .