Any method of fitting equations to data may be called regression. Such equations are valuable for at least two purposes: making predictions and judging the strength of relationships. Because they provide a way of em pirically identifying how a variable is affected by other variables, regression methods have become essential in a wide range of fields, including the soeial seiences, engineering, medical research and business. Of the various methods of performing regression, least squares is the most widely used. In fact, linear least squares regression is by far the most widely used of any statistical technique. Although nonlinear least squares is covered in an appendix, this book is mainly ab out linear least squares applied to fit a single equation (as opposed to a system of equations). The writing of this book started in 1982. Since then, various drafts have been used at the University of Toronto for teaching a semester-Iong course to juniors, seniors and graduate students in a number of fields, including statistics, pharmacology, pharmacology, engineering, economics, forestry and the behav ioral seiences. Parts of the book have also been used in a quarter-Iong course given to Master's and Ph.D. students in public administration, urban plan ning and engineering at the University of Illinois at Chicago (UIC). This experience and the comments and critieisms from students helped forge the final version.
A field in cancer research and diagnosis is based on the concept of stem/progenitor cells as being the primary targets of neoplastic transformation - 'tumor stem cells'(TSC). It is believed that similar to normal tissue organization, tumor progression is driven by the TSC component.
A study of how nanotechnology can be used in disease detection and treatment. It shows how nanotechnology offers sensitive tools for the early detection of cancer, discussing the use of lasers to measure optical deformability in cancer cells, and therapeutics through the use of nanomaterials.
The Early Detection Research Network attracts academic and industrial scientists by providing access to diverse top-quality scientific assays, clinical specimens, and financial resources. This collection of papers speaks for the diversity of the approaches, technologies, and studies focused toward translating biomarkers into clinical application.
The significance of the environment as a real sense of natural resources constitutes the capital on which the human beings depend to satisfy their needs to achieve their aspiration for development. The real management apart from administration of the environment has demanded positive and realistic planning, that balance human needs against the potential of the environment. Taking into the consideration of sustainable development, the environmentalist are forced to act accordingly as per the environment management and administration. It is a need of today to save the environment, depending on management, administration as well as economics.
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