ANESTHESIA FOR OPIOID ADDICT: CHALLENGES FOR PERIOPERATIVE PHYSICIAN




Short Note: Comparison of three surveying techniques applied to hydrogeological studies: level, barometer, and GPS

The error from three different surveying techniques- level, hand-held barometer, and hand-held GPS-were compared in terms of accuracy and cost effectiveness for hydrogeological studies by surveying a four-kilometer circuit within the campus of the Universidad Nacional Autonoma de Mexico.The polygon was surveyed once with the Hutch level and the bar

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