tailieunhanh - Complementary and Alternative Medicine

Although this article concentrates on image analysis and computer vision, image synthesis is in many respects linked to these disciplines (23,24). The most immediate example is the data visualization itself. The physician’s workstation will foremost be a display device, showing the results from the reconstruction and/or analysis. In addition to this obvious ex- ample, various concepts “borrowed” from computer graphics are often employed in scene analysis. The opposite is of course true, but of less interest in the context of this paper. The common basis for image synthesis and analysis lies in the way humans visually per- ceive things. Computer graphics is obviously intimately concerned with perception | Chapter 69 Complementary and Alternative Medicine Haile T. Debas Ramanan Laxminarayan and Stephen E. Straus The objective of medicine is to address people s unavoidable needs for emotional and physical healing. The discipline has evolved over millennia by drawing on the religious beliefs and social structures of numerous indigenous peoples by exploiting natural products in their environments and more recently by developing and validating therapeutic and preventive approaches using the scientific method. Public health and medical practices have now advanced to a point at which people can anticipate and even feel entitled to lives that are longer and of better quality than ever before in human history. Yet despite the pervasiveness power and promise of contemporary medical science large segments of humanity either cannot access its benefits or choose not to do so. More than 80 percent of people in developing nations can barely afford the most basic medical procedures drugs and vaccines. In the industrial nations a surprisingly large proportion of people opt for practices and products for which proof as to their safety and efficacy is modest at best practices that in the aggregate are known as complementary and alternative medicine CAM or as traditional medicine TM . Much of this book considers the formidable challenges to advancing human health through the further dispersion of effective and economical medical practices. This chapter considers both proven and unproven but popular CAM and TM approaches and attempts to portray their current and potential place in the overall practice of medicine. With globalization the pattern of disease in developing countries is changing. Unlike in the past when communicable diseases dominated now 50 percent of the health burden in developing nations is due to noncommunicable diseases such as cardiovascular diseases diabetes hypertension depression and use of tobacco and other addictive substances. Because lifestyle diet obesity lack

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