The insertion losses of five neoprene diving hoods varying thicknesses (2 mm–9 mm) were measured in one-third octave bands using a Kemar manikin diffuse broadband noise field. air for both dry and wet hoods. loss was calculated as the sound level each frequency band with hood, minus corresponding without hood. similar ears manikin. Both neither attenuated nor amplified below 250 Hz. Between 315...

This study examined the effect of simulation on nursing students' knowledge of advanced cardiac life support (ACLS), knowledge retention, and confidence in applying ACLS skills. An experimental, randomized controlled (pretest-posttest) design was used. The experimental group (n = 40) attended an ACLS simulation scenario, a 4-hour PowerPoint presentation, and demonstration on a static manikin, w...

We present the results of an empirical evaluation of a three-dimensional sound field reproduction system consisting of 32 loudspeakers installed in a hemi-anechoic room at the University of Sydney. This loudspeaker arrangement allows up to third-order, two-dimensional, and fourth-order, three-dimensional Higher Order Ambisonic (HOA) reproduction of sound fields. The ability of this system to re...

One hundred and twenty four occupational first aiders were tested on their ability to carry out cardiopulmonary resuscitation (CPR) at varying times following training (up to three years). Expert assessment of printouts from a Recording Resusci-Anne manikin indicated that only 12 per cent of those tested would be capable of carrying out effective CPR, Measures derived from the same printouts sh...

For wearers of protective clothing in radiation environments there are no quantitative guidelines available for the effect of a radiative heat load on heat exchange. Under the European Union funded project ThermProtect an analytical effort was defined to address the issue of radiative heat load while wearing protective clothing. As within the ThermProtect project much information has become ava...

BACKGROUND Alternatives to endotracheal intubation (ETI) are required when access to the cranial end of the patient is restricted. In this study, the success rate and time duration of standard intubation techniques were compared with two different supraglottic devices. Two different manikins were used for the study, and the training effect was studied when the same manikin was repeatedly used. ...