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Identity criteria are powerful tools for the metaphysician. They tell us when items are identical or distinct. Some varieties of identity criteria also try to explain in virtue of what items are identical or distinct. This Element has two objectives: to discuss formulations of identity criteria and to take a closer look at one notorious criterion of object identity, Leibniz's Law. The first section concerns the form of identity criteria. The second section concerns the better-regarded half of Leibniz's Law, the indiscernibility of identicals. The third section turns to the more controversial half of Leibniz's Law, the identity of indiscernibles. The author considers alternatives to Leibniz's Law as well as the possibility that there are no adequate identity criteria to be found.
This Element examines the entirety of Kant's Critique of Taste (in Part One of the Critique of Judgment) with particular emphasis on its political and moral aims. Kant's critical treatment of aesthetic judgment is both an extended theoretical response to influential predecessors and contemporaries, including Rousseau and Herder, and a practical intervention in its own right meant to nudge history forward at a time of civilizational crisis. Attention to these themes helps resolve a number of puzzles, both textual and philosophic, including the normative force and meaning of judgments of taste, and the relation between natural and artful beauty.
Many twentieth and twenty-first century composers have written music with rhythmic structures that must be understood through a framework distinct from even, periodic meter, which has been a salient musical feature of Western classical music for centuries. This Element's analytical system outlines structure and phrasing in sections of music without even perceptible meter. Instead of entrainment to meter, Bryan Hayslett theorizes that listeners perceive rhythm in similar ways to how they perceive the rhythm of language. With gesture as the smallest organizational grouping unit, his analytical system combines Fred Lerdahl and Ray Jackendoff's generative theory of tonal music with Bruce Hayes's metrical stress theory from linguistics. The listener perceives the shape of a gesture according to the structure of its constituents, and larger-level phrasing is perceived through the hierarchical relationship of gestures. After developing a set of rules, the author provides analyses that outline temporal structure according to perceptual prominence.
This Element focuses on Xin Fengxia (1927–1998), a star of the regional xiqu form pingju, and her prominent role in transforming the genre from folk entertainment for the lower class to one of the most notable winners of the xiqu reform after the establishment of the People's Republic of China (PRC) in 1949. The Element's four sections expand from this core concept to include the four stages of her life experience and artistry that shaped her legacy: growing up in China's third largest theatre market Tianjin before 1949, national stardom in Beijing (1949–1957), restricted creativity amidst political upheavals (1957–1975), and as a prominent author after a stroke (1977–1998). Rather than following a biographical approach, these sections zero in on the environment before and after 1949 that made her a prominent pingju reformer and the consequent price of such success.
The KRAS oncogene is believed to be the most common single nucleotide variant oncogene in human cancer. Historically, efforts to target KRAS and the other RAS GTPases have struggled. More recently, efforts have focused on identifying and exploiting features unique to specific oncogenic mutations. This has led to the first FDA approval for a RAS targeted therapy. This new agent is a covalent inhibitor that reacts with the cysteine residue created by a codon 12 glycine to cysteine (G12C) mutation within KRAS. Mutant-specific strategies may also exist for other KRAS single nucleotide variants, and recent studies provide examples and mechanisms.
Japan is emerging as a more prominent global and regional military power, defying traditional categorisations of a minimalist contribution to the US-Japan alliance, maintaining anti-militarism, seeking an internationalist role, or carving out more strategic autonomy. Instead, this Element argues that Japan has fundamentally shifted its military posture over the last three decades and traversed into a new categorisation of a more capable military power and integrated US ally. This results from Japan's recognition of its fundamentally changing strategic environment that requires a new grand strategy and military doctrines. The shift is traced across the national security strategy components of Japan Self-Defence Forces' capabilities, US-Japan alliance integration, and international security cooperation. The Element argues that all these components are subordinated inevitably to the objectives of homeland security and re-strengthening the US-Japan alliance, and thus Japan's development as international security partner outside the ambit of the bilateral alliance remains stunted. This title is also available as Open Access on Cambridge Core.
Perhaps the most fundamental question of epistemology asks on what grounds our knowledge of the world ultimately rests. The traditional Cartesian answer is that it rests on indubitable facts arrived at through rational insight or introspection. Coherentists reject this answer, claiming instead that knowledge arises from relations of coherence or mutual support: if our beliefs cohere, we can be sure that they are mostly true. The first part of this Element introduces the reader to the main ideas and problems of coherentism. The next part describes the 'probabilistic turn', leading up to recent demonstrations that coherence fails to be conducive to truth. The final part reassesses the current debate about the proper definition of coherence from the standpoint of Rudolf Carnap's methodology of explication. The upshot is a tentative and qualified defence of one of the early coherence measures.
Recent research in neurochemistry has shown there to be a number of chemical compounds that are implicated in the patterns of lust, attraction, and attachment that undergird romantic love. For example, there is evidence that the phenomenon of attachment is associated with the action of oxytocin and vasopressin. There is therefore some reason to suppose that patterns of lust, attraction, and attachment could be regulated via manipulation of these substances in the brain: in other words, by their use as 'love drugs'. A growing bioethical literature asks searching questions about this prospect, and especially about the use of such drugs to enhance or reignite attachment in flagging relationships. This Element examines some of the central arguments on the topic, and sounds a note of caution. It urges that there are reasons to think the states of attachment produced or facilitated by the use of such drugs would not be desirable.
A partially-auxetic metamaterial is introduced, inspired by the Maltese cross. Each unit of this metamaterial consists of a pair of counter-rotating equal-armed crosses, which is interconnected to neighboring units via hinge rods and connecting rods. Based on linkage theory, the on-axes Poisson's ratio was established considering a two-fold symmetrical mechanism, while the (anti)tetrachiral mechanisms were identified for on-axes uniaxial compression. A shearing mechanism is suggested for pure shearing and diagonal loading of the metamaterial with square array. Results suggest that the approximated infinitesimal models are valid for the Poisson's ratio of the two-fold symmetrical and the (anti)tetrachiral mechanisms under on-axis tension and compression, respectively; however, the finite model is recommended for quantifying the Poisson's ratio under pure shear and off-axis loading. This metamaterial manifests microstructural trinity, in which three different loading modes result in three different groups of deformation mechanisms. Finally, suggestions are put forth for some unsolved predictive problems.
The existential threat posed by climate change presents a challenge to all those concerned about the next generation. This Element reviews and discusses its implications for the development of children (ages 0-12) today and in the future, and for the parents, teachers, researchers, and professionals who have responsibility for children. This Element adopts a bioecological model to examine both the direct impacts on children's physical and psychological well-being as well as indirect impacts through all the systems external to the child, emphasizing the greater vulnerability of children in the Global South. Given evidence of well-founded climate anxiety, this Element examines children's coping strategies and discusses the key roles of caregivers and schools in protecting and preparing children to face current and future challenges – with knowledge, hope, and agency as central themes. This Element highlights many under-researched areas and calls for action by all those caring for and about children's future.
This Element follows the development of humans in constantly changing climates and environments from Homo erectus 1.9 million years ago, to fully modern humans who moved out of Africa to Europe and Asia 70,000 years ago. Biosemiotics reveals meaningful communication among coevolving members of the intricately connected life forms on this dynamic planet. Within this web hominins developed culture from bipedalism and meat-eating to the use of fire, stone tools, and clothing, allowing wide migrations and adaptations. Archaeology and ancient DNA analysis show how fully modern humans overlapped with Neanderthals and Denisovans before emerging as the sole survivors of the genus Homo 35,000 years ago. Their visions of the world appear in magnificent cave paintings and bone sculptures of animals, then more recently in written narratives like the Gilgamesh epic and Euripides' Bacchae whose images still haunt us with anxieties about human efforts to control the natural world.
Networks are convenient mathematical models to represent the structure of complex systems, from cells to societies. In the last decade, multilayer network science – the branch of the field dealing with units interacting in multiple distinct ways, simultaneously – was demonstrated to be an effective modeling and analytical framework for a wide spectrum of empirical systems, from biopolymers networks (such as interactome and metabolomes) to neuronal networks (such as connectomes), from social networks to urban and transportation networks. In this Element, a decade after one of the most seminal papers on this topic, the authors review the most salient features of multilayer network science, covering both theoretical aspects and direct applications to real-world coupled/interdependent systems, from the point of view of multilayer structure, dynamics and function. The authors discuss potential frontiers for this topic and the corresponding challenges in the field for the next future.
This Element focuses on English-Medium instruction (EMI), an educational approach that is spreading widely and rapidly in higher education institutions throughout the world because it is regarded as a lynchpin of the internationalisation process. The main aim of the Element is to provide critical insights into EMI implementation and the results obtained so far in diverse university contexts. After defining EMI and analysing the rapid extension it has experienced, the volume tackles issues such as stakeholders' views on how EMI programmes are being implemented, the impact of teaching and learning both content and language in a foreign language, translanguaging practices in English-medium lectures, and how assessment has hitherto been addressed. Each section aims to bring to light new avenues for research. The Element wraps up with a description of the many challenges ahead.
To understand logic is, first and foremost, to understand logical consequence. This Element provides an in-depth, accessible, up-to-date account of and philosophical insight into the semantic, model-theoretic conception of logical consequence, its Tarskian roots, and its ideas, grounding, and challenges. The topics discussed include: (i) the passage from Tarski's definition of truth (simpliciter) to his definition of logical consequence, (ii) the need for a non-proof-theoretic definition, (iii) the idea of a semantic definition, (iv) the adequacy conditions of preservation of truth, formality, and necessity, (v) the nature, structure, and totality of models, (vi) the logicality problem that threatens the definition of logical consequence (the problem of logical constants), (vii) a general solution to the logicality, formality, and necessity problems/challenges, based on the isomorphism-invariance criterion of logicality, (viii) philosophical background and justification of the isomorphism-invariance criterion, and (ix) major criticisms of the semantic definition and the isomorphism-invariance criterion.
This Element addresses the cultural production of ancient Egypt in the museum as a mixture of multiple pasts and presents that cohere around collections; their artefacts, documentation, storage, research, and display. Its four sections examine how ideas about the past are formed by museum assemblages: how their histories of acquisition and documentation shape interpretation, the range of materials that comprise them, the influence of their geographical framing, and the moments of remaking that might be possible. Throughout, the importance of critical approaches to interpretation is underscored, reasserting the museum as a site of active research and experiment, rather than only exhibitionary product or communicative media. It argues for a multi-directional approach to museum work that seeks to reveal the inter-relations of collection histories and which has implications not just for museum representation and documentation, but also for archaeological practice more broadly.
Networks contain complex patterns of dependency and require multiple levels of analysis to explain their formation, structure, and outcomes. In this Element, the authors develop the Multilevel Network Framework. The framework serves as (i) a conceptual tool to think more deeply about network dynamics, (ii) a research tool to assist in connecting data, theory, and empirical models, and (iii) a diagnostic tool to analyze and categorize bodies of research. The authors then systematically review the network literature in public administration, management, and policy. They apply the Multilevel Network Framework to categorize the literature; identify significant gaps; examine micro, macro and cross-level relations; and examine relevant mechanisms and theories. Overall this Element helps readers to (i) understand and classify network research, (ii) use appropriate theoretical frameworks to examine network-related problems, (iii) understand how networks emerge and produce effects at different levels of analysis, and (iv) select appropriate empirical models.
Many healthcare improvement approaches originated in manufacturing, where end users are framed as consumers. But in healthcare, greater recognition of the complexity of relationships between patients, staff, and services (beyond a provider-consumer exchange) is generating new insights and approaches to healthcare improvement informed directly by patient and staff experience. Co-production sees patients as active contributors to their own health and explores how interactions with staff and services can best be supported. Co-design is a related but distinct creative process, where patients and staff work in partnership to improve services or develop interventions. Both approaches are promoted for their technocratic benefits (better experiences, more effective and safer services) and democratic rationales (enabling inclusivity and equity), but the evidence base remains limited. This Element explores the origins of co-production and co-design, the development of approaches in healthcare, and associated challenges; in reviewing the evidence, it highlights the implications for practice and research. This title is also available as Open Access on Cambridge Core.
Collaboration-based approaches to healthcare improvement attract much attention. They involve networks of people coming together to cooperate around a common interest, with shared goals of improving care and mutual learning. Longstanding examples of collaborative approaches have been associated with some success in improving outcomes and reducing harm. The evidence for their effectiveness and cost-effectiveness, however, remains inconsistent and contingent on the circumstances in which they are deployed and how they are used for what purpose. Several models for collaboration have been developed, varying in structure, format, and balance between internal leadership and external control. The authors focus on two approaches: quality improvement collaboratives and communities of practice. They explore evidence of their impact on health outcomes, and evidence about how best to organise and implement collaboration-based approaches. Using examples of more and less successful collaborations, they offer guidance on the key challenges involved in using collaboration-based approaches to improve healthcare. This title is also available as Open Access on Cambridge Core.
Positive deviance is an asset-based improvement approach. At its core is the belief that solutions to problems already exist within communities, and that identifying, understanding, and sharing these solutions enables improvements at scale. Originating in the field of international public health in the 1960s, positive deviance is now, with some adaptations, seeing growing application in healthcare. We present examples of how positive deviance has been used to support healthcare improvement. We draw on an emerging view of safety, known as Safety II, to explain why positive deviance has drawn the interest of researchers and improvers alike. In doing so, we identify a set of fundamental values associated with the positive deviance approach and consider how far they align with current use. Throughout, we consider the untapped potential of the approach, reflect on its limitations, and offer insights into the possible challenges of using it in practice. This title is also available as Open Access on Cambridge Core.
Maya Rao, performer, performance maker and feminist, has not only contributed to Indian feminist theatre, but is a trailblazer, who set new standards in solo performances, mapped an alternate career trajectory for women in theatre and, in the face of right-wing state repression in India, has engaged significantly in performance activism. This Element looks back at her early career in the 1980s when she was creating agit prop theatre for the feminist movement and forward to her performance activism in the twenty-first century, with detailed attention to Rao's acclaimed protest Walk, and her participation in the protests against the Citizenship Amendment Act. The study also encompasses her parallel work in the theatre, from early collaborations with feminist directors to her solo projects. The author traces her creative-political journey towards an egalitarian feminist future.