Pull the plug on stress

Stress is rampant, stress is growing, and stress hurts the bottom line. A 1999 study of 46,000 workers revealed that health care costs are 147% higher for those who are stressed or depressed, independent of other health issues. But what exactly is stress? It usually refers to our internal reaction to negative, threatening, or worrisome situations--a looming performance report, say, or interactions with a dismissive colleague. Accumulated over time, negative stress can depress you, burn you out, make you sick, or even kill you--because it's both an emotional and a physiological habit. Of course, many companies understand the negative impact of cumulative stress and offer programs to help employees counteract it. The problem is that employees in the greatest need of help often don't seek it. Since 1991, the authors have studied the physiological impact of stress on performance, at both the individual and organizational levels. Their goal largely has been to decode the underlying mechanics of stress. They've sought not only to understand how stress works on a person's mind, heart, and other bodily systems but also to discover the precise emotional, mental, and physiological levers that can counteract it. After working with more than 50,000 workers and managers in more than 100 organizations, the authors have found that learning to manage stress is easier than most people think. They have devised a scientifically based system of tools, techniques, and technologies that organizations can use to reduce employee stress and boost overall health and performance. In this article, they use the story of someone they call Nigel, a senior executive with whom they've worked, to describe how these techniques reduce stress in the real world.     

Anti-leisure in dystopian fiction: the literature of leisure in the worst of all possible worlds

Literary utopias, i.e. designs for the theoretically perfect society, have been common in Western literature since Plato's The Republic . A variation on this genre which emerged in the nineteenth century is the anti-utopia, or dystopia, in which an author depicts the worst of all possible societies. Dystopias usually exaggerate contemporary social trends and in doing so, offer serious social criticism. This essay examines the treatment of leisure in four widely-read dystopian novels. The leisure described in these novels we call anti-leisure. It is not leisure's opposite, work, but leisure perverted to achieve the perpetuation of tyranny. Such leisure regulates identity, prevents individual thought, impedes self-sufficiency, encourages immoderation, and distracts citizens from social injustice through various compulsory activities. Such novels encourage the re-examination of theories of leisure from a humanistic standpoint.     

Economic consequences of animal rights programs

Readily available data are used to provide relevant decision making information on the highly subjective issue of animal rights. Two examples of alleged crowding; cattle being finished in concrete lots, and broilers in confined operations were evaluated to determine the impact on producers and consumers from increasing space per animal. It is concluded that similar policy changes, such as doubling floor space, can lead to dramatic differences in economic impact depending on the industry affected. It is shown that economic analysis can provide valuable information in estimating the tradeoffs in moral issues. James R. Simpson is Professor and Livestock Marketing Economist at the Food and Resource Economics Department, University of Florida, Gainesville, U.S.A. He was formerly President and Senior Economist of InterAmerican Research Associates, and Cooperative Advisor of the Cooperative League of U.S.A. He was Scholar-in-Residence at the Rockefeller Foundation, Villa Serbelloni at Bellagio, Italy, 1979 and Visiting Research Professor at Kyoto University, Fall, 1982. His most important publications are: James R. Simpson and Don Farris, The World's Beef Business and Toward a Humanist Consensus on Ethics of International Development, in Morris Storer (ed.), Humanist Ethics. He is also author or co-author of over 100 articles in professional journals and chapters in books on livestock, international development and ethics. Bernard E. Rollin is Professor of Philosophy and Professor of Physiology and Biophysics at the Colorado State University. His book Animal Rights and Human Morality (Prometheus Books) was selected as Outstanding Academic Book, in Choice Magazine, 1981. Other important publications by him are: Natural and Conventional Meaning: An Examination of the Distinction (Mouton, 1976); Papers published in the Journal of the American Veterinary Medical Association; Poetics; Kant-Studien; and Perspectives in Biology and Medicine.     

Economic dynamics of reservoir sedimentation management: Optimal control with singularly perturbed equations of motion

We analyze the economic dynamics of reservoir sedimentation management using the hydrosuction-dredging sediment-removal system. System dynamics depend on two interdependent hydraulic processes evolving at different rates. The accumulation of water impounded in the reservoir evolves on a ‘fast’ time scale, while the loss of water storage capacity to trapped sediments evolves on a ‘slow’ time scale. We formulate a multidimensional optimal control problem with singularly perturbed equations of motion to accommodate the disparate time scales. We apply singular perturbation methods to approximate (via polynomial series expansion) a ‘slow’ manifold reducing multi-dimensional solution space to the single-dimensional subspace confining long-term dynamics.