AIM Propofol is a widely used anesthesia induction agent and is easily accessible in most healthcare facilities. Unlike regulated or schedule drugs, propofol is inconsistently tracked, leading to inaccurate inventories, incorrect billing, and unrecognized diversion. The goal of this project was to implement a new method of tracking propofol in a single setting, with the aim of accounting for 10...

The causality properties of space-time models with traversable wormholes are considered. It is shown that relativity principle cannot be applied to the motion of the wormhole’s mouths in the outer space and the dynamical wormhole transformation into the time machine is impossible. The examples of both causal and noncausal spacetime models with traversable wormholes are also considered. Some pro...

Page 1 of 1 (page number not for citation purposes) In a recent study on nurses’ ability to predict volume status after subarachnoid haemorrhage, we found very low predictive values [1]. In a letter to the editor, Dane [2] argued that an error in statistics ‘makes any reasonable conclusions impossible’. Because Dr Dane was the statistical reviewer of our manuscript, both the authors and the edi...

This study aims to address potential costs of using incorrect worked examples in teaching mathematics. While such practice has been shown to be effective in educational research, previous findings in the memory literature suggest that exposure to an incorrect solution may lead students to later believe that it is correct due to increased familiarity. We designed a two-session experiment with 1-...