Nature’s Machines: An Introduction to Organismal Biomechanics presents the fundamental principles of biomechanics in a concise, accessible way while maintaining necessary rigor. It covers the central principles of whole-organism biomechanics as they apply across the animal and plant kingdoms, featuring brief, tightly-focused coverage that does for biologists what H. M. Frost’s 1967 Introduction to Biomechanics did for physicians. Frequently encountered, basic concepts such as stress and strain, Young’s modulus, force coefficients, viscosity, and Reynolds number are introduced in early chapters in a self-contained format, making them quickly available for learning and as a refresher. More sophisticated, integrative concepts such as viscoelasticity or properties of hydrostats are covered in the later chapters, where they draw on information from multiple earlier sections of the book. Animal and plant biomechanics is now a common research area widely acknowledged by organismal biologists to have broad relevance. Most of the day-to-day activities of an animal involve mechanical processes, and to the extent that organisms are shaped by adaptive evolution, many of those adaptations are constrained and channelized by mechanical properties. The similarity in body shape of a porpoise and a tuna is no coincidence. Many may feel that they have an intuitive understanding of many of the mechanical processes that affect animals and plants, but careful biomechanical analyses often yield counterintuitive results: soft, squishy kelp may be better at withstanding pounding waves during storms than hard-shelled mollusks; really small swimmers might benefit from being spherical rather than streamlined; our bones can operate without breaking for decades, whereas steel surgical implants exhibit fatigue failures in a few months if not fully supported by bone.

Nature's Machines: An Introduction to Organismal Biomechanics

Science & Math

Alexander, David E.

Biological Sciences

Academic Press

Ask anybody what superpower they wished to possess and odds are the answer just might be "the ability to fly." What is it about soaring through the air held up by the power of one's own body that has captivated humans for so long? David Alexander examines the evolution of flight in the only four animals to have evolved this ability: insects, pterosaurs, birds, and bats. With an accessible writing style grounded in rigorous research, Alexander breaks new ground in a field that has previously been confined to specialists. While birds have received the majority of attention from flight researchers, Alexander pays equal attention to all four groups of flyers-something that no other book on the subject has done before now. In a streamlined and captivating way, David Alexander demonstrates the links between the tiny 2-mm thrip and the enormous albatross with the 12 feet wingspan used to cross oceans. The book delves into the fossil record of flyers enough to satisfy the budding paleontologist, while also pleasing ornithologists and entomologists alike with its treatment of animal behavior, flapping mechanisms, and wing-origin theory. Alexander uses relatable examples to draw in readers even without a natural interest in birds, bees, and bats. He takes something that is so off-limits and unfamiliar to humans-the act of flying-and puts it in the context of experiences that many readers can relate to. Alexander guides readers through the anomalies of the flying world: hovering hummingbirds, unexpected gliders (squirrels, for instance), and the flyers that went extinct (pterosaurs). Alexander also delves into wing-origin theory and explores whether birds entered the skies from the trees down (as gliders) or from the ground up (as runners) and uses the latest fossil evidence to present readers with an answer.

On the Wing: Insects, Pterosaurs, Birds, Bats and the Evolution of Animal Flight

Oxford University Press

Selected by Choice Magazine as an Outstanding Academic Title for 2003
David E. Alexander's fascination with the many animals and plants that have harnessed the air is evident in Nature's Flyers: Birds, Insects, and the Biomechanics of Flight, a detailed account of our current scientific understanding of the primary aspects of flight in nature.
Instead of relying on elaborate mathematical equations, Alexander explains the physical basis of flight with sharp prose and clear diagrams. Drawing upon bats, birds, insects, pterosaurs, and even winged seeds, he details the basic operating principles of wings and then moves progressively through more complex modes of animal flight, including gliding, flapping, and maneuvering. In addition to summarizing the latest thinking about flight's energy costs, Alexander presents a holistic view of flight and its ramifications as he explores the ecology and evolution of flying animals, addressing behaviorally important topics such as migration and navigation. With somewhat surprising answers, the author then concludes his study by examining the extent to which natural flight has been inspiring or instructive for the architects of human flight―airplane designers and engineers.

Nature's Flyers: Birds, Insects, and the Biomechanics of Flight

Johns Hopkins University Press

Most contemporary versions of moral realism are beset with difficulties. Many of these difficulties arise because of a faulty conception of the nature of goodness. Goodness, God, and Evil lays out and defends a new version of moral realism that re-conceives the nature of goodness. Alexander argues that the adjective 'good' is best thought of as an attributive adjective and not as a predicative one. In other words, the adjective 'good' logically cannot be detached from the noun (or noun phrase) that it modifies. It is further argued that this conception of the function of the adjective implies that recent attempts to provide necessary a posteriori identities between goodness and something else must fail. The convertibility of being and goodness, the privation theory of evil, a denial of the fact-value distinction, human nature as the ground of human morality and even a novel argument for the existence of God are some of the implications of the account of goodness that Alexander offers.

Goodness, God, and Evil (Continuum Studies in Philosophy of Religion, 2)

Politics & Social Sciences

Philosophy

Continuum

Goodness, God, and Evil (Bloomsbury Studies in Philosophy of Religion)

Bloomsbury Academic

How to Write an Emergency Plan

The world is becoming more hazardous as natural and social processes combine to create complex situations of increased vulnerability and risk. There is increasing recognition that this trend is creating exigencies that must be dealt with. The common approach is to delegate the task of preparing an emergency plan to someone. Often that person is expected to get on with job but rarely is the means and instruction of how to write such a plan provided to them. There are a host of instances in which the letter of the law, not the spirit, is honoured by providing a token plan of little validity.
David Alexander provides, in this book, the assistance needed to write an emergency plan. It is a practical ‘how to’ manual and guide aimed at managers in business, civil protection officers, civil security officials, civil defence commanders, neighbourhood leaders and disaster managers who have been tasked with writing, reviewing or preparing emergency plans for all kinds of emergency, disaster or catastrophe. He takes the reader through the process of writing an emergency plan, step by step, starting with the rationale and context, before moving on through the stages of writing and activating a basic, generic emergency plan and concludes with information on specific kinds of plan, for example, for hospitals and cultural heritage sites.
This practical guide also provides a core for postgraduate training in emergency management and has been written in such a way that it is not tied to the legal constraints of any particular jurisdiction.

Business & Money

Insurance

Liverpool University Press

Principles of Emergency Planning and Management

Social Sciences

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Books by Alexander, David E.