Design Structure Matrix Methods and Applications

In this book David Currie and Paul Levine address a broad range of issues concerning the design and conduct of macroeconomic policy in open economies. Adopting neo-Keynesian models for which monetary and fiscal policy have short-term real effects, they analyse active stabilisation policies in both a single- and multi-country context. Questions addressed include: the merits of simple policy rules, policy design in the face of uncertainty and international policy coordination. A central feature of the book is the treatment of credibility and the effect of a policy-maker's reputation for sticking to announced policies. These considerations are integrated with coordination issues to produce a unique synthesis. The volume develops optimal control methods and dynamic game theory to handle relationships between governments and a conscious rational private sector and produces a unified, coherent approach to the subject. This book will be of interest to students and teachers of open economy mac

In this book David Currie and Paul Levine address a broad range of issues concerning the design and conduct of macroeconomic policy in open economies. Adopting neo-Keynesian models for which monetary and fiscal policy have short-term real effects, they analyse active stabilisation policies in both a single- and multi-country context. Questions addressed include: the merits of simple policy rules, policy design in the face of uncertainty and international policy coordination. A central feature of the book is the treatment of credibility and the effect of a policy-maker's reputation for sticking to announced policies. These considerations are integrated with coordination issues to produce a unique synthesis. The volume develops optimal control methods and dynamic game theory to handle relationships between governments and a conscious rational private sector and produces a unified, coherent approach to the subject. This book will be of interest to students and teachers of open economy mac

The Science and Practice of Welding, now in its tenth edition and published in two volumes, is an introduction to the theory and practice of welding processes and their applications. Volume 2, The Practice of Welding, is a comprehensive survey of the welding methods in use today and gives up-to-date information on all types of welding methods and tools. Processes described include manual metal arc welding (MMA or SMAW); gas shielded metal arc welding (MIG, MAG or GMAW); tungsten inert gas shielded welding (TIG or GTAW) and plasma arc (PA) and cutting. Resistance, flash butt and oxy-acetylene welding are also included. Cutting processes are given a separate chapter. This new edition has been brought right up-to-date with a new chapter on the welding of plastics, and new sections on the welding of duplex stainless steel and air plasma cutting. The text is illustrated by up-to-date photographs of plant and equipment. As in previous editions, the appendices bring together a wealth of essen

This 1998 book describes the progress that had been made towards the development of a comprehensive understanding of the formation of complex, disorderly patterns under conditions far from equilibrium. The application of fractal geometry and scaling concepts to the quantitative description and understanding of structure formed under non-equilibrium conditions is described. Self-similar fractals, multi-fractals and scaling methods are discussed, with examples, to facilitate applications in the physical sciences. Computer simulations and experimental studies are emphasised, but the author also includes discussion of theoretical advances in the subject. Much of the book deals with diffusion-limited growth processes and the evolution of rough surfaces, although a broad range of other applications is also included. The techniques and topics will be relevant to graduate students and researchers in physics, chemistry, materials science, engineering and the earth sciences, interested in applyi

This 1998 book describes the progress that had been made towards the development of a comprehensive understanding of the formation of complex, disorderly patterns under conditions far from equilibrium. The application of fractal geometry and scaling concepts to the quantitative description and understanding of structure formed under non-equilibrium conditions is described. Self-similar fractals, multi-fractals and scaling methods are discussed, with examples, to facilitate applications in the physical sciences. Computer simulations and experimental studies are emphasised, but the author also includes discussion of theoretical advances in the subject. Much of the book deals with diffusion-limited growth processes and the evolution of rough surfaces, although a broad range of other applications is also included. The techniques and topics will be relevant to graduate students and researchers in physics, chemistry, materials science, engineering and the earth sciences, interested in applyi

An introduction to the theory and techniques for achieving high quality network communication with the best possible bandwidth economy, this book focuses on network information flow with fidelity. Covering both lossless and lossy source reconstruction, it is illustrated throughout with real-world applications, including sensor networks and multimedia communications. Practical algorithms are presented, developing novel techniques for tackling design problems in joint network-source coding via collaborative multiple description coding, progressive coding, diversity routing and network coding. With systematic introductions to the basic theories of distributed source coding, network coding and multiple description coding, this is an ideal self-contained resource for researchers and students in information theory and network theory.

This collection of classroom-tested laboratory and field exercises engages students and their instructors in a thorough exploration of central problems and topics in social psychology. The book is divided into three sections: technique demonstrations, technique applications, and problem investigations. Each section includes exercises on topics such as questionnaire design, interviewing, speech style, the observation of children, eyewitness testimony, and co-operation and competition. Students are provided with the necessary background knowledge of each social phenomenon investigated to make their research effort involving and meaningful. An instructor's manual accompanies the book and provides the supplementary information instructors need to organise the exercises for their students.

This collection of classroom-tested laboratory and field exercises engages students and their instructors in a thorough exploration of central problems and topics in social psychology. The book is divided into three sections: technique demonstrations, technique applications, and problem investigations. Each section includes exercises on topics such as questionnaire design, interviewing, speech style, the observation of children, eyewitness testimony, and co-operation and competition. Students are provided with the necessary background knowledge of each social phenomenon investigated to make their research effort involving and meaningful. An instructor's manual accompanies the book and provides the supplementary information instructors need to organise the exercises for their students.

Presenting a unified approach to the liquid state, this book focusses on the concepts and theoretical methods that are necessary for an understanding of the physics and chemistry of the fluid state. The authors do not attempt to cover the whole field in an encyclopedic manner. Instead, important ideas are presented in a concise and rigorous style, and illustrated with examples from both simple molecular liquids and more complex soft condensed matter systems such as polymers, colloids, and liquid crystals. After a general chapter introducing the liquid state, the book is in four parts devoted to: thermodynamics; structure and fluctuations; phase transitions, interfaces and inhomogeneous fluids; and, finally, transport and dynamics. Each chapter introduces a new set of closely related concepts and theoretical methods, which are then illustrated by a number of specific applications covering a broad range of physical situations.

This book discusses in detail all the relevant numerical methods for the classical N-body problem. It demonstrates how to develop clear and elegant algorithms for models of gravitational systems, and explains the fundamental mathematical tools needed to describe the dynamics of a large number of mutually attractive particles. Particular attention is given to the techniques needed to model astrophysical phenomena such as close encounters and the dynamics of black hole binaries. The author reviews relevant work in the field and covers applications to the problems of planetary formation and star cluster dynamics, both of Pleiades type and globular clusters. Self-contained and pedagogical, this book is suitable for graduate students and researchers in theoretical physics, astronomy and cosmology.

This book discusses in detail all the relevant numerical methods for the classical N-body problem. It demonstrates how to develop clear and elegant algorithms for models of gravitational systems, and explains the fundamental mathematical tools needed to describe the dynamics of a large number of mutually attractive particles. Particular attention is given to the techniques needed to model astrophysical phenomena such as close encounters and the dynamics of black hole binaries. The author reviews relevant work in the field and covers applications to the problems of planetary formation and star cluster dynamics, both of Pleiades type and globular clusters. Self-contained and pedagogical, this book is suitable for graduate students and researchers in theoretical physics, astronomy and cosmology.

Using classical and quantum methods with a strong emphasis on symmetry principles, this book, a reissue of the 2004 second edition, develops the theory of a variety of optical activity and related phenomena from the perspective of molecular scattering of polarised light. In addition to the traditional topic of optical rotation and circular dichroism in the visible and near-ultraviolet associated with electronic transitions, the newer topic of optical activity associated with vibrational transitions, which may be studied using both infrared and Raman techniques, is also treated. Ranging from the physics of elementary particles to the structure of viruses, the subject matter of the book reflects the importance of optical activity and chirality in much of modern science and will be of interest to a wide range of physical and life scientists.

During the past half-century, exponential families have attained a position at the center of parametric statistical inference. Theoretical advances have been matched, and more than matched, in the world of applications, where logistic regression by itself has become the go-to methodology in medical statistics, computer-based prediction algorithms, and the social sciences. This book is based on a one-semester graduate course for first year Ph.D. and advanced master's students. After presenting the basic structure of univariate and multivariate exponential families, their application to generalized linear models including logistic and Poisson regression is described in detail, emphasizing geometrical ideas, computational practice, and the analogy with ordinary linear regression. Connections are made with a variety of current statistical methodologies: missing data, survival analysis and proportional hazards, false discovery rates, bootstrapping, and empirical Bayes analysis. The book con

During the past half-century, exponential families have attained a position at the center of parametric statistical inference. Theoretical advances have been matched, and more than matched, in the world of applications, where logistic regression by itself has become the go-to methodology in medical statistics, computer-based prediction algorithms, and the social sciences. This book is based on a one-semester graduate course for first year Ph.D. and advanced master's students. After presenting the basic structure of univariate and multivariate exponential families, their application to generalized linear models including logistic and Poisson regression is described in detail, emphasizing geometrical ideas, computational practice, and the analogy with ordinary linear regression. Connections are made with a variety of current statistical methodologies: missing data, survival analysis and proportional hazards, false discovery rates, bootstrapping, and empirical Bayes analysis. The book con

The magnetotelluric method is a technique for imaging the electrical conductivity and structure of the Earth, from the near surface down to the 410 km transition zone and beyond. This book forms the first comprehensive overview of magnetotellurics, from the salient physics and its mathematical representation to practical implementation in the field, data processing, modeling and geological interpretation. Electromagnetic induction in 1-D, 2-D and 3-D media is explored, building from first principles, and with thorough coverage of the practical techniques of time series processing, distortion, numerical modeling and inversion. The fundamental principles are illustrated with a series of case histories describing geological applications. Technical issues, instrumentation and field practices are described for both land and marine surveys. This book provides a rigorous introduction to magnetotellurics for academic researchers and advanced students, and will be of interest to industrial prac

The magnetotelluric method is a technique for imaging the electrical conductivity and structure of the Earth, from the near surface down to the 410 km transition zone and beyond. This book forms the first comprehensive overview of magnetotellurics, from the salient physics and its mathematical representation to practical implementation in the field, data processing, modeling and geological interpretation. Electromagnetic induction in 1-D, 2-D and 3-D media is explored, building from first principles, and with thorough coverage of the practical techniques of time series processing, distortion, numerical modeling and inversion. The fundamental principles are illustrated with a series of case histories describing geological applications. Technical issues, instrumentation and field practices are described for both land and marine surveys. This book provides a rigorous introduction to magnetotellurics for academic researchers and advanced students, and will be of interest to industrial prac

True Stories 4, Silver Edition, consists of 16 human-interest stories adapted from newspapers and magazines. The universal appeal of these real believe-it-or-not tales ensures a motivates reading experience for students of English. Every unit ends with "Challenge" readings that are written at a slightly higher level than the main stories to prepare students for more authentic readings.Features of the Silver EditionNew and updated stories maintain the high interest of the series and capture students' imaginations.A colorful new design makes the readings inviting and enhances students' understanding and enjoyment of the stories.A uniform unit structure runs across all six books in the edition, making it easy for students to move seamlessly from one level to the next.Digital Resources include:e-Book.pop-up stories.audio recordings of every reading.answer keys.teaching tips.additional practice activities.

Responding to the lively resurgence of literary formalism, this volume delivers a timely and fresh exploration of the works of Geoffrey Chaucer. Advancing 'new formalist' approaches, medieval scholars have begun to ask what happens when structure fails to yield meaning, probing the very limits of poetic organization. While Chaucer is acknowledged as a master of form, his work also foregrounds troubling questions about formal agency: the disparate forces of narrative and poetic practice, readerly reception, intertextuality, genre, scribal attention, patronage, and historical change. This definitive collection of essays offers diverse perspectives on Chaucer and a varied analysis of these problems, asking what happens when form is resisted by author or reader, when it fails by accident or by design, and how it can be misleading, errant, or even dangerous.

Responding to the lively resurgence of literary formalism, this volume delivers a timely and fresh exploration of the works of Geoffrey Chaucer. Advancing 'new formalist' approaches, medieval scholars have begun to ask what happens when structure fails to yield meaning, probing the very limits of poetic organization. While Chaucer is acknowledged as a master of form, his work also foregrounds troubling questions about formal agency: the disparate forces of narrative and poetic practice, readerly reception, intertextuality, genre, scribal attention, patronage, and historical change. This definitive collection of essays offers diverse perspectives on Chaucer and a varied analysis of these problems, asking what happens when form is resisted by author or reader, when it fails by accident or by design, and how it can be misleading, errant, or even dangerous.

Combustion is a fascinating phenomenon coupling complex chemistry to transport mechanisms and nonlinear fluid dynamics. This book provides an up-to-date and comprehensive presentation of the nonlinear dynamics of combustion waves and other non-equilibrium energetic systems. The major advances in this field have resulted from analytical studies of simplified models performed in close relation with carefully controlled laboratory experiments. The key to understanding the complex phenomena is a systematic reduction of the complexity of the basic equations. Focusing on this fundamental approach, the book is split into three parts. Part I provides physical insights for physics-oriented readers, Part II presents detailed technical analysis using perturbation methods for theoreticians, and Part III recalls the necessary background knowledge in physics, chemistry and fluid dynamics. This structure makes the content accessible to newcomers to the physics of unstable fronts in flows, whilst also

Cooperation in Biological and Social Systems analyzes cooperation within both biological networks and human societies. The book's approach is cross-disciplinary, focusing on key ideas and methods from genetics, biology, ecology, economics, and political science, while guiding students to make conceptual and mathematical connections between fields. The core objective of the book is to help students perceive the deep, common structure of networked interaction in nature, and to gain the tools necessary to formally analyze cooperation. The book begins by offering a conceptual and mathematical toolkit centered on game theory and network science. Readers then apply these tools to the study of biological phenomena, including genetic networks, endosymbiosis, intraspecies cooperation, and mutualisms, in the following chapters. The final portion of the book presents case studies of the most pressing problems of collective action facing global society today, including climate change, cyberterrori

Wolfram's Parzival is one of the great medieval romances, but the complexities and obscurities of source, language and the Grail symbol have led to a virtual neglect by scholars of the problems of structure and characterisation. Medieval characterisation tended towards idealisation, symbolism and the view that the individual could be considered a member of a class or type; in Wolfram however the beginnings of individual characterisation can be seen. This 1966 book studies the types and techniques of character-portrayal in Parzival and of the emergence of the idea of individuality. Dr Blamires analyses each of the main characters - Gahmuret, Herzeloyde, Parzival, Gawan and Feirefiz - and shows how Wolfram presents them and the variety of methods he uses. From this approach he deals with the main problems the poem presents and brings out its closeness and complexity of texture.

This book uses evidence from theatrical hand-books, performance practice and drama training to provide a synthesis of academic and theatrical approaches to the Shakespearean text. Abigail Rokison's work combines scholarship with practical exploration in the rehearsal room. In looking at theatrical interaction with early printed and modern edited texts, Rokison investigates the potential impact of editorial principles of lineation and punctuation on theatrical delivery. The book alerts editors to ways in which actors may interpret editorial emendations, and theatre practitioners to diverse authorial, editorial and compositional methods. It contains suggestions for a 'theatrical text' which makes clear the metrical structure of a scene whilst also indicating areas of ambiguous lineation. Providing a fresh perspective on Renaissance actors' parts, the book includes detailed analysis of the structural properties of the verse, in particular short lines, shared lines, end-stopping and enjamb

The River Scene is a uniquely stimulating guide to the appreciation and preservation of rivers. In this highly illustrated account, Sylvia Haslam presents a new scheme for the evaluation of river quality which can be used by a wide range of users, from amateur conservationists to water-management professionals. The book presents an overview of river ecology, looking first at the natural environment - river structure, classification and pollution. This is followed by a discussion of the cultural environment, the importance of which is often overlooked: the history, archaeology, and social and legal contexts of rivers. Dr Haslam is a leading international authority on rivers and their vegetation. By understanding the natural and cultural environments of rivers and applying the methods she describes, our awareness and appreciation of these beautiful resources can be greatly enhanced, and their conservation for the future aided.

The River Scene is a uniquely stimulating guide to the appreciation and preservation of rivers. In this highly illustrated account, Sylvia Haslam presents a new scheme for the evaluation of river quality which can be used by a wide range of users, from amateur conservationists to water-management professionals. The book presents an overview of river ecology, looking first at the natural environment - river structure, classification and pollution. This is followed by a discussion of the cultural environment, the importance of which is often overlooked: the history, archaeology, and social and legal contexts of rivers. Dr Haslam is a leading international authority on rivers and their vegetation. By understanding the natural and cultural environments of rivers and applying the methods she describes, our awareness and appreciation of these beautiful resources can be greatly enhanced, and their conservation for the future aided.

Originally published in 1983, the principal object of this book is to discuss in detail the structure of finite group rings over fields of characteristic, p, P-adic rings and, in some cases, just principal ideal domains, as well as modules of such group rings. The approach does not emphasize any particular point of view, but aims to present a smooth proof in each case to provide the reader with maximum insight. However, the trace map and all its properties have been used extensively. This generalizes a number of classical results at no extra cost and also has the advantage that no assumption on the field is required. Finally, it should be mentioned that much attention is paid to the methods of homological algebra and cohomology of groups as well as connections between characteristic 0 and characteristic p.

This book outlines the basic science underlying the prediction of stress and velocity distributions in granular materials. It takes the form of a textbook suitable for postgraduate courses, research workers and for use in design offices. The nature of a rigid-plastic material is discussed and a comparison is made between the Coulomb and conical (extended Von Mises) models. The methods of measuring material properties are described and an interpretation of the experimental results is considered in the context of the Critical State Theory. The book will be an invaluable text for all those working with or doing research into granular materials. Exercises and solutions are provided which will be particularly useful for the student.

This book outlines the basic science underlying the prediction of stress and velocity distributions in granular materials. It takes the form of a textbook suitable for postgraduate courses, research workers and for use in design offices. The nature of a rigid-plastic material is discussed and a comparison is made between the Coulomb and conical (extended Von Mises) models. The methods of measuring material properties are described and an interpretation of the experimental results is considered in the context of the Critical State Theory. The book will be an invaluable text for all those working with or doing research into granular materials. Exercises and solutions are provided which will be particularly useful for the student.

The focus of this book is the study of the noncommutative aspects of rings and modules, and the style will make it accessible to anyone with a background in basic abstract algebra. Features of interest include an early introduction of projective and injective modules; a module theoretic approach to the Jacobson radical and the Artin-Wedderburn theorem; the use of Baer's criterion for injectivity to prove the structure theorem for finitely generated modules over a principal ideal domain; and applications of the general theory to the representation theory of finite groups. Optional material includes a section on modules over the Weyl algebras and a section on Goldie's theorem. When compared to other more encyclopedic texts, the sharp focus of this book accommodates students meeting this material for the first time. It can be used as a first-year graduate text or as a reference for advanced undergraduates.

The focus of this book is the study of the noncommutative aspects of rings and modules, and the style will make it accessible to anyone with a background in basic abstract algebra. Features of interest include an early introduction of projective and injective modules; a module theoretic approach to the Jacobson radical and the Artin-Wedderburn theorem; the use of Baer's criterion for injectivity to prove the structure theorem for finitely generated modules over a principal ideal domain; and applications of the general theory to the representation theory of finite groups. Optional material includes a section on modules over the Weyl algebras and a section on Goldie's theorem. When compared to other more encyclopedic texts, the sharp focus of this book accommodates students meeting this material for the first time. It can be used as a first-year graduate text or as a reference for advanced undergraduates.

This is the first book to link the mod 2 Steenrod algebra, a classical object of study in algebraic topology, with modular representations of matrix groups over the field F of two elements. The link is provided through a detailed study of Peterson's `hit problem' concerning the action of the Steenrod algebra on polynomials, which remains unsolved except in special cases. The topics range from decompositions of integers as sums of 'powers of 2 minus 1', to Hopf algebras and the Steinberg representation of GL(n, F). Volume 1 develops the structure of the Steenrod algebra from an algebraic viewpoint and can be used as a graduate-level textbook. Volume 2 broadens the discussion to include modular representations of matrix groups.

This is the first book to link the mod 2 Steenrod algebra, a classical object of study in algebraic topology, with modular representations of matrix groups over the field F of two elements. The link is provided through a detailed study of Peterson's 'hit problem' concerning the action of the Steenrod algebra on polynomials, which remains unsolved except in special cases. The topics range from decompositions of integers as sums of 'powers of 2 minus 1', to Hopf algebras and the Steinberg representation of GL(n,F). Volume 1 develops the structure of the Steenrod algebra from an algebraic viewpoint and can be used as a graduate-level textbook. Volume 2 broadens the discussion to include modular representations of matrix groups.

This is the first book to link the mod 2 Steenrod algebra, a classical object of study in algebraic topology, with modular representations of matrix groups over the field F of two elements. The link is provided through a detailed study of Peterson's 'hit problem' concerning the action of the Steenrod algebra on polynomials, which remains unsolved except in special cases. The topics range from decompositions of integers as sums of 'powers of 2 minus 1', to Hopf algebras and the Steinberg representation of GL(n,F). Volume 1 develops the structure of the Steenrod algebra from an algebraic viewpoint and can be used as a graduate-level textbook. Volume 2 broadens the discussion to include modular representations of matrix groups.

This is a pioneering, multi-empire account of the relationship between the politics of imperial repression and the economic structures of European colonies between the two World Wars. Ranging across colonial Africa, Southeast Asia and the Caribbean, Martin Thomas explores the structure of local police forces, their involvement in colonial labour control and the containment of uprisings and dissent. His work sheds new light on broader trends in the direction and intent of colonial state repression. It shows that the management of colonial economies, particularly in crisis conditions, took precedence over individual imperial powers' particular methods of rule in determining the forms and functions of colonial police actions. The politics of colonial labour thus became central to police work, with the depression years marking a watershed not only in local economic conditions but also in the breakdown of the European colonial order more generally.

Mood disorders such as depression and bipolar disorder are common mental illnesses, affecting millions of patients worldwide. The application of newly available brain imaging methods to the study of mood disorders holds substantial promise in uncovering the brain mechanisms affected in these illnesses. This comprehensive and authoritative text features contributions from leading international experts, providing easily accessible information on the study of the brain mechanisms involved in the causation of mood disorders and the available treatments. Topics covered include the potential of magnetoencephalography (MEG), neuroimaging brain inflammation in depression, electrophysiology studies in mood disorders, and the applications of machine learning, filling an important gap in available neuropsychiatric literature and highlighting new developments. An invaluable resource for practitioners in the fields of psychiatry, neurology, primary care medicine, and related mental health professio

Applied Soils and Micromorphology in Archaeology provides the most up-to-date information on soil science and its applications in archaeology. Based on more than three decades of investigations and experiments, the volume demonstrates how description protocols and complimentary methods (SEM/EDS, microprobe, micro-FTIR, bulk soil chemistry, micro- and macrofossils) are used in interpretations. It also focuses on key topics, such as palaeosols, cultivation, and occupation surfaces, and introduces a range of current issues, such as site inundation, climate change, settlement morphology, herding, trackways, industrial processes, funerary features, and site transformation. Structured around important case studies, Applied Soils and Micromorphology in Archaeology is thoroughly-illustrated, with color plates and figures, tables and other ancillary materials on its website (www.cambridge.org/9781107011380); chapter appendices can be accessed separately using the web (www.geoarchaeology.info/as

Applied Soils and Micromorphology in Archaeology provides the most up-to-date information on soil science and its applications in archaeology. Based on more than three decades of investigations and experiments, the volume demonstrates how description protocols and complimentary methods (SEM/EDS, microprobe, micro-FTIR, bulk soil chemistry, micro- and macrofossils) are used in interpretations. It also focuses on key topics, such as palaeosols, cultivation, and occupation surfaces, and introduces a range of current issues, such as site inundation, climate change, settlement morphology, herding, trackways, industrial processes, funerary features, and site transformation. Structured around important case studies, Applied Soils and Micromorphology in Archaeology is thoroughly-illustrated, with color plates and figures, tables and other ancillary materials on its website (www.cambridge.org/9781107011380); chapter appendices can be accessed separately using the web (www.geoarchaeology.info/as

In this book, first published in 2003, the reader is provided with a tour of the principal results and ideas in the theories of completely positive maps, completely bounded maps, dilation theory, operator spaces and operator algebras, together with some of their main applications. The author assumes only that the reader has a basic background in functional analysis, and the presentation is self-contained and paced appropriately for graduate students new to the subject. Experts will also want this book for their library since the author illustrates the power of methods he has developed with new and simpler proofs of some of the major results in the area, many of which have not appeared earlier in the literature. An indispensable introduction to the theory of operator spaces for all who want to know more.

Computational modeling and simulation methods have a wide range of applications in hydraulic and coastal engineering. This textbook provides an introductory but comprehensive coverage of these methods

Philosophers and doctors from the period immediately after Aristotle down to the second century CE were particularly focussed on the close relationships of soul and body; such relationships are particularly intimate when the soul is understood to be a material entity, as it was by Epicureans and Stoics; but even Aristotelians and Platonists shared the conviction that body and soul interact in ways that affect the well-being of the living human being. These philosophers were interested in the nature of the soul, its structure, and its powers. They were also interested in the place of the soul within a general account of the world. This leads to important questions about the proper methods by which we should investigate the nature of the soul and the appropriate relationships among natural philosophy, medicine, and psychology. This volume, part of the Symposium Hellenisticum series, features ten scholars addressing different aspects of this topic.