Wave Processes in Solids With Microstructure

Advances in Learner Corpus Research (LCR) and Second Language Acquisition (SLA) have brought these two fast-moving fields significantly closer in recent years. This volume brings together contributions from internationally recognized experts in both LCR and SLA to provide an innovative, cross-collaborative examination of how both areas can provide rich insights for the other. Chapters present recent advances in LCR and illustrate in a clear and accessible style how these can be exploited for the study of a broad range of key topics in SLA, such as complexity, tense and aspect, cross-linguistic influence vs. universal processes, phraseology and variability. It concludes with two commentary chapters written by eminent scholars, one from the perspective of SLA, the other from the perspective of LCR, allowing researchers and students alike to reflect upon the mutually beneficial harmony between the two fields and link up LCR and SLA research and theory.

It is increasingly important in our globalised world for people to successfully manage interpersonal relationships. This is the first book to tackle this vital topic, by taking an interdisciplinary approach to exploring the process of relating across cultures. Drawing together key concepts from politeness theory, intercultural communication, and cross-cultural/intercultural psychology, it provides a robust framework for analysing and understanding intercultural encounters. It explores the ways in which individuals make judgements about others, deal with offence and conflict, maintain smooth relations, and build new relationships. These processes are explained conceptually and illustrated extensively with authentic intercultural examples and empirical data. With accessible explanations and follow-up activities, it will appeal not only to academics working in the areas of intercultural communication, pragmatic theory, conflict research and other related academic disciplines, but also to

Biologists often study living systems in light of their having evolved, of their being the products of various processes of heredity, adaptation, ancestry, and so on. In their investigations, then, biologists think comparatively: they situate lineages into models of those evolutionary processes, comparing their targets with ancestral relatives and with analogous evolutionary outcomes. This element characterizes this mode of investigation - 'comparative thinking' - and puts it to work in understanding why biological science takes the shape it does. Importantly, comparative thinking is local: what we can do with knowledge of a lineage is limited by the evolutionary processes into which it fits. In light of this analysis, the Element examines the experimental study of animal cognition, and macroevolutionary investigation of the 'shape of life', demonstrating the importance of comparative thinking in understanding both the power and limitations of biological knowledge.

Westerners on both the left and right overwhelmingly conflate globalisation with Westernisation and presume that the global economy is a pure Western-creation. Taking on the traditional Eurocentric Big Bang theory, or the 'expansion of the West' narrative, this book reveals the multicultural origins of globalisation and the global economy, not so as to marginalise the West but to show how it has long been embedded in complex interconnections and co-constitutive interactions with non-Western actors/agents and processes. The central empirical theme is the role of Indian structural power that was derived from Indian cotton textile exports. Indian structural power organised the first (historical-capitalist) global economy between 1500 and c.1850 and performed a vital, albeit indirect, role in the making of Western empire, industrialisation and the second (modern-capitalist) global economy. These textiles underpinned the complex inter-relations between Africa, West/Central/East/Southeast As

Address vector and matrix methods necessary in numerical methods and optimization of linear systems in engineering with this unified text. Treats the mathematical models that describe and predict the evolution of our processes and systems, and the numerical methods required to obtain approximate solutions. Explores the dynamical systems theory used to describe and characterize system behaviour, alongside the techniques used to optimize their performance. Integrates and unifies matrix and eigenfunction methods with their applications in numerical and optimization methods. Consolidating, generalizing, and unifying these topics into a single coherent subject, this practical resource is suitable for advanced undergraduate students and graduate students in engineering, physical sciences, and applied mathematics.

Do elections turn people into democratic citizens? Elections have long been seen as a way to foster democracy, development and security in Africa, with many hoping that the secret ballot would transform states. Adopting a new approach that focusses on the moral economy of elections, Nic Cheeseman, Gabrielle Lynch and Justin Willis show how elections are shaped by competing visions of what it means to be a good leader, bureaucrat or citizen. Using a mixed-methods study of elections in Ghana, Kenya and Uganda, they explore moral claims made by officials, politicians, civil society, international observers and voters themselves. This radical new lens reveals that elections are the site of intense moral contestation, which helps to explain why there is such vigourous participation in processes that often seem flawed. Demonstrating the impact of these debates on six decades of electoral practice, they explain why the behaviour of those involved so frequently transgresses national law and in

Advances in Learner Corpus Research (LCR) and Second Language Acquisition (SLA) have brought these two fast-moving fields significantly closer in recent years. This volume brings together contributions from internationally recognized experts in both LCR and SLA to provide an innovative, cross-collaborative examination of how both areas can provide rich insights for the other. Chapters present recent advances in LCR and illustrate in a clear and accessible style how these can be exploited for the study of a broad range of key topics in SLA, such as complexity, tense and aspect, cross-linguistic influence vs. universal processes, phraseology and variability. It concludes with two commentary chapters written by eminent scholars, one from the perspective of SLA, the other from the perspective of LCR, allowing researchers and students alike to reflect upon the mutually beneficial harmony between the two fields and link up LCR and SLA research and theory.

Ethnic Identities in the Land of the Pharaohs deals with ancient Egyptian concept of collective identity, various groups which inhabited the Egyptian Nile Valley and different approaches to ethnic identity in the last two hundred years of Egyptology. The aim is to present the dynamic processes of ethnogenesis of the inhabitants of the land of the pharaohs, and to place various approaches to ethnic identity in their broader scholarly and historical context. The dominant approach to ethnic identity in ancient Egypt is still based on culture historical method. This and other theoretically better framed approaches (e.g. instrumentalist approach, habitus, postcolonial approach, ethnogenesis, intersectionality) are discussed using numerous case studies from the 3rd millennium to the 1st century BC. Finally, this Element deals with recent impact of third science revolution on archaeological research on ethnic identity in ancient Egypt.

The main subject of this introductory book is simple random walk on the integer lattice, with special attention to the two-dimensional case. This fascinating mathematical object is the point of departure for an intuitive and richly illustrated tour of related topics at the active edge of research. It starts with three different proofs of the recurrence of the two-dimensional walk, via direct combinatorial arguments, electrical networks, and Lyapunov functions. After reviewing some relevant potential-theoretic tools, the reader is guided toward the relatively new topic of random interlacements - which can be viewed as a 'canonical soup' of nearest-neighbour loops through infinity - again with emphasis on two dimensions. On the way, readers will visit conditioned simple random walks - which are the 'noodles' in the soup - and also discover how Poisson processes of infinite objects are constructed and review the recently introduced method of soft local times. Each chapter ends with many e

The main subject of this introductory book is simple random walk on the integer lattice, with special attention to the two-dimensional case. This fascinating mathematical object is the point of departure for an intuitive and richly illustrated tour of related topics at the active edge of research. It starts with three different proofs of the recurrence of the two-dimensional walk, via direct combinatorial arguments, electrical networks, and Lyapunov functions. After reviewing some relevant potential-theoretic tools, the reader is guided toward the relatively new topic of random interlacements - which can be viewed as a 'canonical soup' of nearest-neighbour loops through infinity - again with emphasis on two dimensions. On the way, readers will visit conditioned simple random walks - which are the 'noodles' in the soup - and also discover how Poisson processes of infinite objects are constructed and review the recently introduced method of soft local times. Each chapter ends with many e

Discover a straightforward and holistic look at energy conversion and conservation processes using the exergy concept with this thorough text. Explains the fundamental energy conversion processes in numerous diverse systems, ranging from jet engines and nuclear reactors to human bodies. Provides examples for applications to practical energy conversion processes and systems that use our naturally occurring energy resources, such as fossil fuels, solar energy, wind, geothermal, and nuclear fuels. With more than one-hundred diverse cases and solved examples, readers will be able to perform optimizations for a cleaner environment, a sustainable energy future, and affordable energy generation. An essential tool for practicing scientists and engineers who work or do research in the area of energy and exergy, as well as graduate students and faculty in chemical engineering, mechanical engineering and physics.

Working memory and perceptual attention are related functions, engaging many similar mechanisms and brain regions. As a consequence, behavioral and neural measures often reveal competition between working memory and attention demands. Yet there remains widespread debate about how working memory operates, and whether it truly shares processes and representations with attention. This Element will examine local-level representational properties to illuminate the storage format of working memory content, as well as systems-level and brain network communication properties to illuminate the attentional processes that control working memory. The Element will integrate both cognitive and neuroscientific accounts, describing shared substrates for working memory and perceptual attention, in a multi-level network architecture that provides robustness to disruptions and allows flexible attentional control in line with goals.

From the Romantic fascination with hallucinatory poetics to the turn-of-the-century mania for automatic writing, poetry in nineteenth-century Britain appears at crucial times to be oddly involuntary, out of the control of its producers and receivers alike. This elegant study addresses the question of how people understood those forms of written creativity that seem to occur independently of the writer's will. Through the study of the century's media revolutions, evolving theories of physiology, and close readings of the works of nineteenth-century poets including Wordsworth, Coleridge and Tennyson, Ashley Miller articulates how poetry was imagined to promote involuntary bodily responses in both authors and readers, and how these responses enlist the body as a medium that does not produce poetry but rather reproduces it. This is a poetics that draws attention to, rather than effaces, the mediacy of the body in the processes of composition and reception.

A leading artificial intelligence researcher lays out a new approach to AI that will enable us to coexist successfully with increasingly intelligent machinesIn the popular imagination, superhuman artificial intelligence is an approaching tidal wave that threatens not just jobs and human relationships, but civilization itself. Conflict between humans and machines is seen as inevitable and its outcome all too predictable.In this groundbreaking book, distinguished AI researcher Stuart Russell argues that this scenario can be avoided, but only if we rethink AI from the ground up. Russell begins by exploring the idea of intelligence in humans and in machines. He describes the near-term benefits we can expect, from intelligent personal assistants to vastly accelerated scientific research, and outlines the AI breakthroughs that still have to happen before we reach superhuman AI. He also spells out the ways humans are already finding to misuse AI, from lethal autonomous weapons to viral sabota

Discusses the nature of plastic flow in solids associated with the development of a localized plastic flow. The author demonstrates how patterns of localized plastic flow are associated with autowave

Close relationships are a vital part of people's daily lives; thus family members, friends, and romantic partners play an integral role in people's health and well-being. Understanding the ways in which close relationships both shape and reflect people's health and wellness is an important area of inquiry. Showcasing studies from various disciplines that are on the cutting-edge of research exploring the interdependence between health and relationships, this collection highlights several relationship processes that are instrumental in the maintenance of health and the management of illness, including interpersonal influence, information management, uncertainty, social support, and communication. Although the existing health literature is rich with knowledge about individual and ecological factors that are influential in promoting certain health behaviors, the relationship scholars featured in this volume have much to contribute in terms of documenting the interpersonal dynamics that are

The year 2020 marks the 75th anniversary of the United Nations Organisation, and the 50th anniversary of the United Nations Friendly Relations Declaration, which states the fundamental principles of the international legal order. In commemoration, some of the world's most prominent international law scholars from all continents have come together to offer a comprehensive study of the fundamental principles of international law. Each chapter in this volume reflects decades of experience, work and reflection by the most authoritative voices of the field. At the same time, the book is an invitation to end narrow specialisation and re-engage with the wider body of rules and processes that lie at the foundations of the international legal order.

Designing engineering components that make optimal use of materials requires consideration of the nonlinear static and dynamic characteristics associated with both manufacturing and working environments. The modeling of these characteristics can only be done through numerical formulation and simulation, which requires an understanding of both the theoretical background and associated computer solution techniques. By presenting nonlinear solid mechanics, dynamic conservation laws and principles, and the associated finite element techniques together, the authors provide in this second book a unified treatment of the dynamic simulation of nonlinear solids. Alongside a number of worked examples and exercises are user instructions, program descriptions, and examples for two MATLAB computer implementations for which source codes are available online. While this book is designed to complement postgraduate courses, it is also relevant to those in industry requiring an appreciation of the way t

Single Molecule Science (SMS) has emerged from developing, using and combining technologies such as super-resolution microscopy, atomic force microscopy, and optical and magnetic tweezers, alongside sophisticated computational and modelling techniques. This comprehensive, edited volume brings together authoritative overviews of these methods from a biological perspective, and highlights how they can be used to observe and track individual molecules and monitor molecular interactions in living cells. Pioneers in this fast-moving field cover topics such as single molecule optical maps, nanomachines, and protein folding and dynamics. A particular emphasis is also given to mapping DNA molecules for diagnostic purposes, and the study of gene expression. With numerous illustrations, this book reveals how SMS has presented us with a new way of understanding life processes. A must-have for researchers and graduate students, as well as those working in industry, primarily in the areas of biophy

As the only area of law that is still commonly termed 'Islamic law', family law is one of the most sensitive and controversial legal areas in all Muslim-majority countries. Morocco and Jordan both issued new family codes in the 2000s, but there are a number of differences in the ways these two states engaged in reform. These include how the reform was carried out, the content of the new family codes, and the way the new laws are applied. Based on extensive fieldwork and rich in sources, this book examines why these two ostensibly similar semi-authoritarian regimes varied so significantly in their engagement with family law. Dörthe Engelcke demonstrates that the structure of the legal systems, shaped by colonial policies, had an effect on how reform processes were carried out as well as the content and the application of family law.

From popular and 'New Wave' pre-revolutionary films of Fereydoon Goleh and Abbas Kiarostami to post-revolutionary films of Mohsen Makhmalbaf, the Iranian cinema has produced a range of films and directors that have garnered international fame and earned a global following. Golbarg Rekabtalaei takes a unique look at Iranian cosmopolitanism and how it transformed in the Iranian imagination through the cinematic lens. By examining the development of Iranian cinema from the early twentieth century to the revolution, Rekabtalaei locates discussions of modernity in Iranian cinema as rooted within local experiences, rather than being primarily concerned with Western ideals or industrialisation. Her research further illustrates how the ethnic, linguistic, and religious diversity of Iran's citizenry shaped a heterogeneous culture and a cosmopolitan cinema that was part and parcel of Iran's experience of modernity. In turn, this cosmopolitanism fed into an assertion of sovereignty and national i

Since the rise of the nation-state in the nineteenth century, constitutions have been seen as an embodiment of national values and identity. However, individuals, ideas, and institutions from abroad have always influenced constitutions, and so the process is better described as transnational. As cross-border interaction is increasing in intensity, a dominant transnational legal order for constitutions has emerged, with its own norms, guidelines and shared ideas. Yet both the process and substance of constitution-making are being contested in divergent and insurgent constitutional orders. Bringing together leading scholars from the United States, Europe, Latin America, and Asia, this volume addresses the actors, networks, norms and processes involved in constitution-making, as well as the related challenges, from a transnational and comparative perspective. Drawing from the research on transnational legal orders, this work explores and examines constitution-making in every region of the

Social Thinking and History demonstrates that our representations of history are constructed through complex psychosocial processes, in interaction with multiple others, and that they evolve throughou

This book is the the first study to offer an extensive engagement with the ideas beind the Dutch swing to the right in the context of the wave of right wing populist movemements that have swept over E

This book is the the first study to offer an extensive engagement with the ideas beind the Dutch swing to the right in the context of the wave of right wing populist movemements that have swept over E

Discover the exceptional artistry and rich traditions being kept alive by Japanese artisans in the twenty-first century.In an era where global interest in handmade, small-batch products is heightening as a response to mass production, Handmade in Japan takes a look inside the workshops of the country's artisans, revealing their endless pursuit of excellence, and what it means to dedicate one's life to the stewardship of irreplaceable cultural heritage.International readers with an appreciation for handmade processes using sustainable materials will find inspiration in the exploration of craft ecosystems, such as the harvesting of natural lacquer in Iwate.Likewise, those who admire skill and beauty will enjoy discovering the lengths these makers go to in ensuring every product is perfect.

This book presents theoretical treatments on various electronic and atomic processes in non-metallic materials from a unified point of view. It starts with the basic properties of semiconductors, trea

Dynamics of conversion and religious change more generally are extremely complex, yet it is crucial for contemporary societies to understand them. This volume contributes to this understanding by focussing on the processes and modalities of conversion within, between and across various religious traditions (Hinduism, Islamic Reformism, Christianity, indigenous religions) from a multi-disciplinary perspective, including anthropology, sociology, religious studies, history and theology. While the book deals with Indian case studies, the introduction, preface (by Piers Vitebsky) and afterword (by Aparecida Vilaça) also offer a comparative perspective linking the Indian situation to contexts of conversion in other parts of the world. The introduction not only provides an overview of important research on conversion in India, it also intends to advance the general theoretical reflection on conversion, considers analytical tools for further research and discusses the work of important theoris

The Internet of Things (IoT) is the notion that nearly everything we use, from gym shorts to streetlights, will soon be connected to the Internet; the Internet of Everything (IoE) encompasses not just objects, but the social connections, data, and processes that the IoT makes possible. Industry and financial analysts have predicted that the number of Internet-enabled devices will increase from 11 billion to upwards of 75 billion by 2020. Regardless of the number, theend result looks to be a mind-boggling explosion in Internet connected stuff.Yet, there has been relatively little attention paid to how we should go about regulating smart devices, and still less about how cybersecurity should be enhanced. Similarly, now that everything from refrigerators to stockexchanges can be connected to a ubiquitous Internet, how can we better safeguard privacy across networks and borders? Will security scale along with this increasingly crowded field? Or, will a combination of perverse incentives, i

What explains contemporary variations in African legislative institutions – including their strengths and weaknesses? Compared with the more powerful executive branches, legislatures throughout the continent have historically been classified as weak and largely inconsequential to policy-making processes. But, as Ken Ochieng' Opalo suggests here, African legislatures actually serve important roles, and under certain conditions, powerful and independent democratic legislatures can emerge from their autocratic foundations. In this book, Opalo examines the colonial origins of African legislatures, as well as how postcolonial intra-elite politics structured the processes of adapting inherited colonial legislatures to local political contexts and therefore continued legislative development. Through case studies of Kenya and Zambia, Opalo offers a comparative longitudinal study of the evolution of legislative strength and institutionalization as well as a regional survey of legislative develo

Kara and Zed go on magical adventures in this twisted fairytale series!Magic, friendship, and adventure are the perfect ingredients for a new twisted fairy tales Branches series from Anna Staniszewski!Pick a book. Grow a Reader!This series is part of Scholastic's early chapter book line Branches, aimed at newly independent readers. With easy-to-read text, high-interest content, fast-paced plots, and illustrations on every page, these books will boost reading confidence and stamina. Branches books help readers grow!The Enchanted Kingdom is in a heat wave until the Ice Princess uses her magic mirror to make winter come -- no wonder Kara and Zed are too hot. But the magic mirror is broken! And no one else wants to help the princess. Can Kara and Zed find out how to fix the mirror and bring back winter? Or will it be summer forever? Macky Pamintuan's illustrations are on every page, welcoming readers into the adorably silly world of the Once Upon a Fairy Tale series.

This wide-ranging study considers the primary forms of decision-making – negotiation, mediation, umpiring, as well as the processes of avoidance and violence – in the context of rapidly changing discourses and practices of civil justice across a range of jurisdictions. Many contemporary discussions in this field–and associated projects of institutional design–are taking place under the broad but imprecise label of Alternative Dispute Resolution (ADR). The book brings together and analyses a wide range of materials dealing with dispute processes, and the current debates on and developments in civil justice. With the help of analysis of materials beyond those ordinarily found in the ADR literature, it provides a comprehensive and comparative perspective on modes of handling civil disputes. The new edition is thoroughly revised and is extended to include new chapters on avoidance and self-help, the ombuds, Online Dispute Resolution and pressures of institutionalisation.

This wide-ranging study considers the primary forms of decision-making – negotiation, mediation, umpiring, as well as the processes of avoidance and violence – in the context of rapidly changing discourses and practices of civil justice across a range of jurisdictions. Many contemporary discussions in this field–and associated projects of institutional design–are taking place under the broad but imprecise label of Alternative Dispute Resolution (ADR). The book brings together and analyses a wide range of materials dealing with dispute processes, and the current debates on and developments in civil justice. With the help of analysis of materials beyond those ordinarily found in the ADR literature, it provides a comprehensive and comparative perspective on modes of handling civil disputes. The new edition is thoroughly revised and is extended to include new chapters on avoidance and self-help, the ombuds, Online Dispute Resolution and pressures of institutionalisation.

This path-breaking addition to the Comparative Politics of Education series studies the influence of public opinion on the contemporary politics of education reform in Western Europe. The authors analyze new data from a survey of public opinion on education policy across eight countries, and they also provide detailed case studies of reform processes based on interviews with policy-makers and stakeholders. The book's core finding is that public opinion has the greatest influence in a world of 'loud' politics, when salience is high and attitudes are coherent. In contrast, when issues are salient but attitudes are conflicting, the signal of public opinion turns 'loud, but noisy' and party politics have a stronger influence on policy-making. In the case of 'quiet' politics, when issue salience is low, interest groups are dominant. This book is required reading for anyone seeking to make sense of policy-makers' selective responsiveness to public demands and concerns.

This path-breaking addition to the Comparative Politics of Education series studies the influence of public opinion on the contemporary politics of education reform in Western Europe. The authors analyze new data from a survey of public opinion on education policy across eight countries, and they also provide detailed case studies of reform processes based on interviews with policy-makers and stakeholders. The book's core finding is that public opinion has the greatest influence in a world of 'loud' politics, when salience is high and attitudes are coherent. In contrast, when issues are salient but attitudes are conflicting, the signal of public opinion turns 'loud, but noisy' and party politics have a stronger influence on policy-making. In the case of 'quiet' politics, when issue salience is low, interest groups are dominant. This book is required reading for anyone seeking to make sense of policy-makers' selective responsiveness to public demands and concerns.

Decision-making in the face of uncertainty is a significant challenge in machine learning, and the multi-armed bandit model is a commonly used framework to address it. This comprehensive and rigorous introduction to the multi-armed bandit problem examines all the major settings, including stochastic, adversarial, and Bayesian frameworks. A focus on both mathematical intuition and carefully worked proofs makes this an excellent reference for established researchers and a helpful resource for graduate students in computer science, engineering, statistics, applied mathematics and economics. Linear bandits receive special attention as one of the most useful models in applications, while other chapters are dedicated to combinatorial bandits, ranking, non-stationary problems, Thompson sampling and pure exploration. The book ends with a peek into the world beyond bandits with an introduction to partial monitoring and learning in Markov decision processes.

This second edition extends the rigorous, self-contained exposition of the theory for viscoelastic wave propagation in layered media to include head waves and general ray theory. The theory, not published elsewhere, provides solutions for fundamental wave-propagation and ray-theory problems valid for any media with a linear response, elastic or anelastic. It explains measurable variations in wave speed, particle motion, and attenuation of body waves, surface waves, and head waves induced at anelastic material boundaries that do not occur for elastic waves. This book may be used as a textbook for advanced university courses and as a research reference in seismology, exploration geophysics, engineering, solid mechanics, and acoustics. It provides computation steps for ray-tracing computer algorithms to develop a variety of tomography inferred anelastic models, such as those for the Earth's deep interior and petroleum reserves. Numerical results and problem sets emphasize important aspect

India is generally regarded as a civilization with a set of intrinsic attributes that emerged in the age of the Vedas or, better still, in the Harappan times. In recent decades, historical studies have moved away from rigid perspectives of singularity in origin and expansion; the emphasis now is on pluralities and long-term processes spanning centuries and millennia. There is also an influential school of thought which rejects antiquity claims such as these and holds that India is a construct of the colonial and nationalist imagination. In his radical reinterpretation of India's past, Manu V. Devadevan moves away from these reifying assessments to examine the evolution of institutions, ideas and identities that are characterized, typically, as Indian. In lieu of endorsing their Indianness, he traces their emergence to specific conditions that developed in India between 600 and 1200 CE, a period which historians now call the 'early medieval'.

India is generally regarded as a civilization with a set of intrinsic attributes that emerged in the age of the Vedas or, better still, in the Harappan times. In recent decades, historical studies have moved away from rigid perspectives of singularity in origin and expansion; the emphasis now is on pluralities and long-term processes spanning centuries and millennia. There is also an influential school of thought which rejects antiquity claims such as these and holds that India is a construct of the colonial and nationalist imagination. In his radical reinterpretation of India's past, Manu V. Devadevan moves away from these reifying assessments to examine the evolution of institutions, ideas and identities that are characterized, typically, as Indian. In lieu of endorsing their Indianness, he traces their emergence to specific conditions that developed in India between 600 and 1200 CE, a period which historians now call the 'early medieval'.

The last two decades have seen a wave of exciting new developments in the theory of algorithmic randomness and its applications to other areas of mathematics. This volume surveys much of the recent work that has not been included in published volumes until now. It contains a range of articles on algorithmic randomness and its interactions with closely related topics such as computability theory and computational complexity, as well as wider applications in areas of mathematics including analysis, probability, and ergodic theory. In addition to being an indispensable reference for researchers in algorithmic randomness, the unified view of the theory presented here makes this an excellent entry point for graduate students and other newcomers to the field.