The purpose of this article is to present in elementary mathematical and statistical terms a simple way to quickly and effectively teach and understand case-control studies, as they are commonly done in dynamic populations-without using the rare disease assumption. Our focus is on case-control studies of disease incidence ('incident case-control studies'); we will not consider the situation of ...

1. Dynamical Systems 2. Graphical Description of Systems 3. Open-loop Control and Closed-loop Control 4. Principal Functions of Control 5. The Basic Structure of Control Systems 6. Some Typical Examples of Control 6.1. Voltage Control of a D.C. Generator 6.2. Course Control of a Ship 6.3. Liquid Level Control 6.4. Control of a Heat Exchanger 7. A Brief Overview of the History of Control Systems...

of Research Results Research on human interaction with automation in many domains including aviation and anesthesiology has shown that automated systems often fail to function as team players (Norman, 1990; Billings, 1991; 1996; Malin et al., 1991; Sarter and Woods, 1994b). To summarize the data, automated systems that are strong, silent, clumsy, and difficult to direct are not team players. Au...

A new program control structure is proposed in this paper which is suitable for expressing a variable number of nested loops. This control structure is useful in combinatorial problems and in problems requiring backtracking. Implementation details are discussed and some illustrative examples are given which employ this new program control structure. The incorporation of this control structure i...

The basic structure of a reactor physics laboratory environment simulation software, developed using object modeling technique (OMT), and based on the reactor point kinetic equation, is presented. Also, various capabilities of the simulator in teaching the fundamental concepts of reactor physics are discussed. In this virtual laboratory, student can perform seven different experiments, ...