Stress is a routine part of our lives. Certain amounts of stress are beneficial; however, sometimes the level of stress can become burdensome. Students in university experience many changes. There is research, Irish as well as international, to indicate college can be a stressful experience for students (Aherne, 2001; Fisher, 1994; Tyrrell, 1993). Being able to manage and control stress is a useful skill, for life as a student but also for life beyond university. Stress management can be taught on a personal as well as a professional basis.
The material in this module can be used as a stand alone - given in addition to regular courses. However, it can also be incorporated into course content when suitable.
The application of crop protection products is an important step in the growing of agronomic crops. Traditionally crop protection products are uniformly applied throughout the field without considering spatial variability of weeds. Thornton et al. (1990) proved that the weeds are not distributed uniformly within crop fields. Blumhorst et al. (1990) reported that herbicide application rate varies with soil properties like pH, moisture content, and organic matter.
Hence applying the crop protection products uniformly results in over application, wastage, environmental problems, off target drift etc. If herbicides are applied according to spatial variability of weeds, crop production will be improved and herbicide waste will be reduced (Johnson et al. 1995).
This paper supplies fast, effective, and simple computational methods for important special cases of Ericson and Pakes’ (1995) model of dynamic oligopoly. These cases feature aggregate uncertainty, sunk entry costs, and stochastic firm-specific technological progress; but they exclude investment decisions other than entry and exit. This simplification facilitates a range of equilibrium characterization, existence, and uniqueness results that are not available for the more general framework. Moreover, it enables the development of algorithms that calculate equilibria by finding the fixed points of a finite sequence of low-dimensional contraction mappings. These results can be used to explore some key aspects of Ericson and Pakes’ model with very low computational cost. This is often useful in itself, and can serve as a first stage of a richer analysis with a more complex specification.
