In this book you will see how commonly performed operations can be found to be useless or even harmful when properly evaluated. That these claims come from an experienced, practicing orthopedic surgeon who performs many of these operations himself, makes the unsettling argument particularly compelling. Of course no surgeon is recommending invasive surgery in bad faith, but Ian Harris argues that the evidence for the success for many common operations, including knee arthroscopies, back fusion or cardiac stenting, become current accepted practice without full examination of the evidence.

    It offers a clear overview of the fundamentals of environmental economics that will enable students and professionals to quickly grasp important concepts and to apply those concepts to real-world environmental problems. In addition, the book integrates normative, policy, and institutional issues at a principles level. Chapters examine: the benefits and costs of environmental protection, markets and market failure, natural resources as capital assets, and sustainability and economic development. Markets and the Environment is the second volume in the Foundations of Contemporary Environmental Studies Series, edited by James Gustave Speth. The series presents concise guides to essential subjects in the environmental curriculum, incorporating a problem-based approach to teaching and learning.

    The First seven chapters deal with structure related aspects such as lattice and crystal structures, bonding, packing and diffusion of atoms followed by imperfections and lattice vibrations. Chapter eight deals mainly with experimental methods of determining structures of given materials. While the next nine chapters cover various physical properties of crystalline solids, the last chapter deals with the anisotropic properties of materials. This chapter has been added for benefit of readers to understand the crystal properties (anisotropic) in terms of some simple mathematical formulations such as tensor and matrix. New to the Second Edition: Chapter on: *Anisotropic Properties of Materials

    The text is updated to include new chapters on current ecological topics (metapopulations and conservation ecology); new part introductions to connect the subfields of ecology; and new in-text features to encourage students to interpret the ecological data, research, and models used throughout the text. Abundant, accessible examples illustrate and clarify the text's emphasis on understanding ecological patterns within an evolutionary framework. Additionally, the text employs new study questions requiring students to make connections and apply their knowledge. The expanded companion website includes GRAPHit!, MODELit!, and QUANTIFYit!, new quantitative exercises to help students further master and apply math skills.

    New 'Consolidation' sections and questions designed to provide a link between GCSE and A-level feature in the text.At the end of each section there are many questions - ideal for consolidation and revision - mainly from past A-level examination papers. Over 15 of these past-paper questions have been added in the Fourth Edition. Answers are included.