OBJECTIVE This study aims to compare different control charts to monitor the nosocomial infection rate per 1,000 patient-days. METHODS The control charts considered in this study were the traditional Shewhart chart and a variation of this, the Cumulative Sum and Exponentially Weighted Moving Average charts. RESULTS We evaluated 238 nosocomial infections that were registered in the intensive...

BACKGROUND Time series charts are increasingly used by clinical teams to monitor their performance, but statistical control charts are not widely used, partly due to uncertainty about which chart to use. Although there is a large literature on methods, there are few systematic comparisons of charts for detecting changes in rates of binary clinical performance data. METHODS We compared four co...

While the assumption of normality is required for the validity ofmost of the available control charts for jointmonitoring of unknown location and scale parameters, we propose and study a distribution-free Shewhart-type chart based on the Cucconi statistic, called the Shewhart-Cucconi (SC) chart. We also propose a follow-up diagnostic procedure useful to determine the type of shift the process m...

Born in Edinburgh on the 1st February 1821, he was educated at the High School of that city. It was at the University of Edinburgh that he received his medical education. His early youth gave promise of his future ; for his assiduity, his love of work, during this period of his life, were such as to augur well for that future. He graduated in 1841 with first-class honours; his Thesis on " The P...

Walter Tarello* (DVM, MA Cardiology, MRCVS) *Pet Connection Veterinary Clinic, Al Barsha 1, Summer Land Building, P.O. Box 450288, Dubai, UAE Tel: +971 4 447 53 07 Email: [email protected] BACKGROUND Avian pox is a viral disease characterized by nodular lesions on the featherless parts of a bird: eyelids, nostrils and feet. Falcons in the Middle East are naturally exposed to Avipoxvirus through...

An effective control scheme can be instrumental in increasing productivity and reducing cost. While facing an outlier-existing process, using the mean ( X ) control chart and the range (R) control chart for monitoring the process mean and variance will lead to high level false alarms. Recently, some median ( X~ ) control charts, such as the X~ Shewhart control chart, the exponentially weighted ...

Process safety is a critical component in various process industries. Statistical process monitoring techniques were initially developed to maximize efficiency and productivity, but over the past few decades with catastrophic industrial disasters, process safety has become a top priority. Sensors play a crucial role in recording process measurements, and according to the number of monitored var...

The coexistence of new technologies and cultural traditions allows search finding related answers to the latest questions in educational development. Reforming higher education system passes without breaches national identity demonstrates raised efficiency reforms. In this paper issues reforming have been considered by example Hokkaido University. Management Staff university got an expanded aut...