Airborne microbiological contamination: are there too many people in operating rooms?

Analyzing Preference Rankings when There Are Too Many Alternatives

Consumer preferences can be measured by rankings of alternatives. When there are too many alternatives, this consumer task becomes complex. One option is to have consumers rank only a subset of the available alternatives. This has an impact on subsequent statistical analysis, as now a large amount of ties is observed. We propose a simple methodology to perform proper statistical analysis in thi...

Causes of nitrous oxide contamination in operating rooms.

BACKGROUND To reduce the ambient concentration of waste anesthetic agents, exhaust gas scavenging systems are standard in almost all operating rooms. The incidence of contamination and the factors that may increase the concentrations of ambient anesthetic gases have not been evaluated fully during routine circumstances, however. METHODS Concentrations of nitrous oxide (N2O) in ambient air wer...

How many people are there in the third age?

With reference to the concept of ‘ the stages of life ’ rather than ‘ages ’, this paper examines the possibilities of estimating population figures for the First, Second and Third Ages in the United Kingdom, both for the present and at points in the past. The approach utilises the economic status of the citizenry – in particular, before, during and after paid work – rather than their ages or bi...

Causes of Nitrous Oxide Contamination in Operating Rooms

the child’s distress. It may be that effective methods of training can be developed for parental presence during induction of anesthesia. Therefore, in our center, we do not offer parental presence to all patients, but rather respond to each request based on the individual child, parent, and anesthesiologist. We agree that separation anxiety is a major problem after surgery in children. This po...

too many students’ congresses, are they necessary and useful?