Introduction: Ventilator-associated pneumonia (VAP) is one ofthe most popular nosocomial infections in the intensive care unitsand the nurse’s role in preventing it is very important. The aim ofthis study was to compare the effect of two methods of face to facetraining and work- shop clinical guidelines in prevention of VAP.Methods: In this experimental randomized clinical trial, theknowledge a...

For the two types of shield tunneling such as Slurry and EPB shield the stability of tunnel face depends on the prevailing support pressure. The support pressure at the tunnel face has to be applied to a value that gives as well sufficient safety against a collapse of the tunnel face as the against uplifting. The paper aims at a better understanding of the mechanics of face failure for those la...

The aim of this study was to determine what the influence of different designs of face masks and different noninvasive ventilator modes would be upon total dynamic dead space. Using a spontaneous breathing model, total dynamic dead space was measured when using 19 commercially available face masks and a range of ventilators in various ventilation modes. Total dynamic dead space during spontaneo...

BACKGROUND The study was set up to assess the effect of recruitment methods on participation rate, response bias and cardiovascular risk factor estimates. METHODS Two random samples of men and women in Halifax County aged 25-74 were drawn from the same sampling frame. Their respective sizes were 1007 (NSHHS) and 3036 (MONICA) people. Recruitment by Nova Scotia Heart Health Survey (NSHHS) was ...