Risk assessment is a standard tool in health care systems which is used to improve patient safety. Failure mode and effects analysis (FMEA) as a powerful risk assessment tool for safety and reliability widely applied by industries such as aerospace, nuclear, automotive, chemical, mechanical, medical technologies, and electronics. FMEA is popular technique, but it has some substantial deficienci...

Introduction In the business management theory of constraints, throughput is the rate at which a system achieves its purpose. For a hospital the purpose or “aim of the system”, as W. Edward Deming refers to it, is to deliver quality patient care as efficiently as possible. Unfortunately, the fragmentation of a hospital’s activities across departmental operational silos propagates waste, comprom...

Applications must be able to synchronize accesses to operating system resources in order to ensure correctness in the face of concurrency and system failures. System transactions allow the programmer to specify updates to heterogeneous system resources with the OS guaranteeing atomicity, consistency, isolation, and durability (ACID). System transactions efficiently and cleanly solve persistent ...

THE RA YDAC acceptance tests were run from June 4 to July 19, 1952, in five sessions of 3 days each. The tests were divided into three phases. Phase 1 consisted of programmed test routines which caused each unit of the computer to go through its various combinations of operations. This included tests of the terminal equipment, central control, and internal memory; the arithmetic unit; and the e...

The benefits of left ventricular assist device (LVAD) therapy in advanced heart failure are clear—device implantation can prolong patient survival, enhance functionality, and improve quality of life. Since US Food and Drug Administration approval of the first continuous-flow LVAD in 2008, utilization has grown rapidly, and now, >2500 devices are placed annually. Given the current epidemic of he...

This paper describes the operating systems – OS – for personal digital assistants – PDAs. Three systems, namely Windows CE, Palm OS, and Symbian OS are discussed. At first the general features of PDA operating systems are introduced. Then the differences of the three systems are discussed from the functionality, usability, and scalability of each system. After that some future predictions are g...

The following contains a description of the principles and techniques used in a modular operating system being implemented at the National Physical Laboratory. The computer being used is a KDF9 with 32K words of core store and a disc file. The system provides a time-sharing and file handling capacity as well as the usual services to users.