Can Silver Be a Reliable Current Collector for Electrochemical Tests?

routine screening for cytomegalovirus infection in immunosuppressed patients: can the diagnostic tests alone be reliable?

Collector Material Desorption Tests ’ A

To obtain long cathode lifetimea, the surface of the spent beam collector for the photocathode RF power source (called the Lasertron) must have a low coefficient of darorption of gas moleculea by electrons. We uuxmbled a low voltage (5 10 kV) ultrahigh vacuum electron gun md target system to measure the desorption rates of CO and COz under conditions where the power density, charge density and ...

can waist circumference be a reliable anthropometric parameter in healthy normal weight and overweight adoles-cents?

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Ridesharing in Muscat: Can it be a Sustainable Solution for the Traffic Congestion?

We deal with developing a Decision Support System (DSS) to promote the ridesharing among both students and staff of a big organization. The DSS includes a set of functions that allow the management of the riders’ requests and drivers’ availability and embeds a novel two-phase optimization approach that helps in defining the optimal riders-drivers matching. The first phase consists o...

When can risk-factor epidemiology provide reliable tests?

Can we obtain interesting and valuable knowledge from observed associations of the sort described by Greenland and colleagues in their paper on risk factor epidemiology? Greenland argues “yes,” and we agree. However, the really important and difficult questions are when and why. Answering these questions demands a clear understanding of the problems involved when going from observed association...