Book Chapters

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    Perspectives on health and illness
    (Massey University, 2025-07-16) Morison T; Gibson A; Riley S; McGuigan K
    Taking a critical perspective, as we do in this book, involves going beyond the surface appearance of an idea or phenomenon to determine why it is the way it is (Baum, 2015). For (critically oriented) health psychology, this means scrutinising health-related issues through a lens that questions underlying assumptions, power dynamics, and social structures. It also means questioning our very understanding of the notion of health, which we frequently take for granted, and which is the focus of this chapter. The questions that may spring to mind are: What is the point of recognising and unpacking different, changing understandings of health and illness? And, Why is taking this critical perspective necessary or valuable? This chapter tackles these questions.
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    Acoustics and Biological Structures
    (InTechOpen, 2019-04-25) Alves-Pereira M; Rapley B; Bakker H; Summers S; Fellah, ZEA; Ogam, E
    Within the context of noise-induced health effects, the impact of airborne acoustical phenomena on biological tissues, particularly within the lower frequency ranges, is very poorly understood. Although the human body is a viscoelastic-composite material, it is generally modeled as Hooke elastic. This implies that acoustical coupling is considered to be nonexistent at acoustical frequencies outside of the human auditory threshold. Researching the acoustical properties of mammalian tissue raises many problems. When tissue samples are investigated as to their pure mechanical properties, stimuli are not usually in the form of airborne pressure waves. Moreover, since the response of biological tissue is dependent on frequency, amplitude, and time profile, precision laboratory equipment and relevant physiological endpoints are mandatory requirements that are oftentimes difficult to achieve. Drawing upon the viscoelastic nature of biological tissue and the tensegrity model of cellular architecture, this chapter will visit what is known to date on the biological response to a variety of different acoustic stimuli at very low frequencies.