In December 2004, the National Academy of Sciences sponsored a colloquium on "Systematics and the Origin of Species" to celebrate Ernst Mayr's 100th anniversary and to explore current knowledge concerning the origin of species. In 1942, Ernst Mayr, one of the twentieth century's greatest scientists, published Systematics and the Origin of Species, a seminal book of the modern theory of evolution, where he advanced the significance of population variation in the understanding of evolutionary process and the origin of new species. Mayr formulated the transition from Linnaeus's static species concept to the dynamic species concept of the modern theory of evolution and emphasized the species as a community of populations, the role of reproductive isolation, and the ecological interactions between species. In addition to a preceding essay by Edward O. Wilson, this book includes the 16 papers presented by distinguished evolutionists at the colloquium. The papers are organized into sections covering the origins of species barriers, the processes of species divergence, the nature of species, the meaning of "species," and genomic approaches for understanding diversity and speciation.
Following the success of The Quantum Universe, first published in 1987, a host of exciting new discoveries have been made in the field of quantum mechanics. The New Quantum Universe provides an up-to-date and accessible introduction to the essential ideas of quantum physics, and demonstrates how it affects our everyday life. Quantum mechanics gives an understanding of not only atoms and nuclei, but also all the elements and even the stars. The book explains quantum paradoxes and the eventful life of Schroedinger's Cat, along with the Einstein–Podolsky–Rosen paradox and Bell's Inequality. It then looks ahead to the nanotechnology revolution, describing quantum cryptography, quantum computing and quantum teleportation, and ends with an account of quantum mechanics and science fiction. Using simple non-mathematical language, this book is suitable for final-year school students, science undergraduates, and anyone wishing to appreciate how physics allows the new technologies that are changing our lives.
This exciting and accessible book takes us on a journey from the early days of computers to the cutting-edge research of the present day that will shape computing in the coming decades. It introduces a fascinating cast of dreamers and inventors who brought these great technological developments into every corner of the modern world, and will open up the universe of computing to anyone who has ever wondered where his or her smartphone came from.
Turnaround Management for the Oil, Gas, and Process Industries: A Project Management Approach helps readers understand the phases of development in preparation for a turnaround, with each relevant phase easily identified. Specific to the process industry, especially oil and gas, petrochemical and power plants, this reference simplifies the entire lifecycle of a turnaround and provides specific examples of both successful and unsuccessful turnaround projects. By identifying the most significant performance indicators and strategies to ensure that targets are met, this book will help plant managers keep plants safe, efficient and running successfully. - Aligns turnaround project management with ISO guidance and ANSI/PMI standards - Utilizes the best tools for long-term planning, including instructional videos and training material - Helps users gain practical knowledge through both good and bad turnaround management case studies - Presents real-world issues and challenges encountered
The year 1982 was a desperate time for the U.S. defense community. The United States had no effective system to protect itself completely from a Soviet attack with nuclear-armed intercontinental ballistic missiles, which the Soviet Union possessed in large quantity, and the doomsday philosophy of mutually assured destruction seemed inescapable. But people in the Reagan administration, including Reagan himself, were not content with what they viewed as a morally unacceptable status quo. Then Adm. James Watkins, a member of the Joint Chiefs of Staff, asked, "Wouldn't it be better if we could develop a system that would protect, rather than avenge, our people?" With that, the president's commitment to the Strategic Defense Initiative (SDI) became certain. Ultimately, SDI reflected Western political idealism, a powerful ingredient in the struggle to finally conquer the terrors of the Cold War and to allay the threat of nuclear holocaust. The Star Wars Enigma tells this dramatic story.
Volume 1 of this revised and updated edition provides an accessible and practical introduction to the first gauge theory included in the Standard Model of particle physics: quantum electrodynamics (QED).The book includes self-contained presentations of electromagnetism as a gauge theory as well as relativistic quantum mechanics. It provides a uniqu
Computational properties of use to biological organisms or to the construction of computers can emerge as collective properties of systems having a large number of simple equivalent components (or neurons). The physical meaning of content-addressable memory is described by an appropriate phase space flow of the state of a system. A model of such a system is given, based on aspects of neurobiology but readily adapted to integrated circuits. The collective properties of this model produce a content-addressable memory which correctly yields an entire memory from any subpart of sufficient size. The algorithm for the time evolution of the state of the system is based on asynchronous parallel processing. Additional emergent collective properties include some capacity for generalization, familiarity recognition, categorization, error correction, and time sequence retention. The collective properties are only weakly sensitive to details of the modeling or the failure of individual devices.
Since 1945, it is estimated, more people have perished as a result of gross human rights violations than as a result of war, yet we have little knowledge of why governments commit gross human rights violations. The present study, seeking to obtain an understanding of the causes underlying gross human rights violations, compares the human rights situation in a country where gross human rights violations are the rule (Guatemala) with the situation in a country where this type of violations does not occur (Costa Rica). The focus of the study is on the short-term sources within the political system which are perceived by those in power as a threat to their power and which trigger gross human rights violations. Furthermore, the long-term sources or background factors which set the stage and allow gross human rights violations to be perpetrated are analysed. The study concludes by highlighting the causes of gross human rights violations and briefly addresses how these violations are presently dealt with in Guatemala.
Although fictional—and often fantastic—representations of nature have been a distinguishing feature of Latin American literature for centuries, ecocriticism, understood as the study of literature as it relates to depictions of the natural world, environmental issues, and the ways in which human beings interact and identify with their natural surroundings, did not emerge as a field of scholarly interest in the region until the end of the twentieth century. This volume employs an ecocritical lens in order to explore and question the use of the river imagery in Latino and Latin American literature from the colonial period to our modern world, creating a space in which to examine both its literal and figurative meanings, associated as much with processes of a personal nature as with those of the collective experience in the region. The slow, meandering streams of nostalgia, the raging currents of conflict or the stagnant waters of social decay are just a few of the ways in which the river has become an important symbol and inspiration to many of the region’s writers. This book offers a diverse collection of writings that, through a trans-historical and trans-geographical perspective, allows us, from the vantage point of the twenty-first century, to reflect on the rich and dynamic image of the river and, by extension, on the vital context of Latin/o America, its people and societies.
In medieval and early modern Britain, people would refer to their local district as their 'country', a term now largely forgotten but still used up until the First World War. Core groups of families that remained rooted in these 'countries', often bearing distinctive surnames still in use today, shaped local culture and passed on their traditions. In The Grass Roots of English History, David Hey examines the differing nature of the various local societies that were found throughout England in these periods. The book provides an update on the progress that has been made in recent years in our understanding of the history of ordinary people living in different types of local societies throughout England, and demonstrates the value of studying the varied landscapes of England, from towns to villages, farmsteads, fields and woods to highways and lanes, and historic buildings from cathedrals to cottages. With its broad coverage from the medieval period up to the Industrial Revolution, the book shows how England's socio-economic landscape had changed over time, employing evidence provided by archaeology, architecture, botany, cultural studies, linguistics and historical demography. The Grass Roots of English History provides an up-to-date account of the present state of knowledge about ordinary people in local societies throughout England written by an authority in the field, and as such will be of great value to all scholars of local and family history.
This book combines linguistic and historical approaches with the latest techniques of DNA analysis and show the insights these offer for every kind of genealogical research. The book will be welcomed by all those engaged in genealogical research, including everyone seeking to discover the histories of their names and families.
Tracy likes to draw, make movies and play, just like other kids. She also has autism spectrum disorder. This means she processes many everyday situations differently, such as making friends. Over time, she's learned tricks for communicationg and coping when things are hard for her. Follow along as Tracy gives a peek at what life is really like for someone living with autism and how she discovered life beyond this common disorder."--Provided by publisher.
In Genes, Categories and Species, Jody Hey provides an enlightening new solution to one of biology's most ironic and perplexing puzzles. When Darwin showed that life evolves, and that it does so by natural selection, he transformed our understanding of living things. But the very question Darwin addressed-the nature of species-continues to pose an awkward conundrum for biologists. Despite enormous efforts by a great many scholars, biologists still cannot agree on how to identify species or even how to define the word "species." Genes, Categories, and Species is not like other books on the species problem, for it does not begin by asking, "What is a species?" Instead, it focuses on the very fact that biologists are stumped by species and their curious behavior in coping with that uncertainty. Faced with a persistent conundrum-and no lack of data on the subject-biologists who ponder the species problem have ceased to ask the most essential of scientific questions: "What new information do we need to resolve the problem?" This is the question that motivates this book and leads to the discoveries it reveals. The answer to the species problem lies not with the processes and patterns of biological diversity, Hey contends, but rather in the way the human mind perceives and categorizes that diversity. The promise of this book is twofold. First, it allows biologists to understand the causes of the species problem and to use this knowledge to avoid the major confusions that arise over species. Second, with its explanation of the species problem, it gives scholars and students of human nature a humbling example of how ill-suited the human mind is for certain kinds of scientific questions.
This core text is the first to provide a much-needed interdisciplinary approach to international studies. Emphasizing the interconnected nature of history, geography, anthropology, economics, and political science, International Studies details the methodologies and subject matter of each discipline then applies these discipline lenses to seven regions: Europe; East Asia and the Pacific; South and Central Asia; sub-Saharan Africa; the Middle East and North Africa; Latin America; and North America. This disciplinary and regional combination provides an indispensable, cohesive framework for understanding global issues. The fully updated fourth edition includes four new global issues chapters: The Refugee Crisis in Europe; The Syrian Civil War and the Rise of the Islamic State; Global Climate Change; and The Globalization of Modern Sports.
This lively and revealing study explores a sociologically invisible but important social relationship: girls' friendships. It uncovers often suppressed school-girl cultures, at times representing in their most condensed and dramatic form issues of intimacy, secrecy and struggle. Most women have memories of, and most mothers of young daughters become re-immersed in, these all-consuming but little understood passions. This taken-for-granted 'ordinary' relationship is examined using girls' notes, talk, diaries and interviews gathered by observing girls groups within city schools. An important and previously ignored question is addressed by examining how girls' intimacy is structured through class, gender, sexuality and race, especially its paradoxical role in maintaining and challenging 'compulsory heterosexuality'. In this way, a series of case studies analyses how girls variously come to understand and construct "difference". In addition, this detailed analysis of girls' friendship contributes to our understanding of how girls simultaneously survive their schools, their families, their relations and subordination to boys and men. Valerie Hey returns the reader to the terrain of loss and recollection, of girls' pleasure and pain in their friendship, and asserts the claims of the social through identifying how this is written into the cultural forms of girls' relationships with each other. Students of women's studies, education, sociology and social psychology will find this book to be an invaluable exploration of how every-day 'obvious' experience is played out as forms of subjectivity and power.
With his blend of engineering and the fields of personal transformation, Peter Hey takes us on a deep, yet accessible journey into the inner recesses of our minds. He presents a unique model of the mind and the mechanisms that define our behavior. Based on his own personal experiences as the son of a Holocaust survivor, his sessions with his own clients and his background in computer design, he brings the concept of programs in our unconscious as the basic mechanism that determines our actions. Millions of programs operating below our everyday awareness, each of them associated with emotions that, in fact, are the actual power behind our decisions in daily life. Leading Mind explains how these programs are created from all our experiences, starting already at conception, through our time in the mother’s womb, all the way to full adulthood. It also shows how, when accessing our deep unconscious, we discover aspects in us that transcend our current physical life. Based on thousands and thousands of sessions done by practitioners around the world, with remarkably consistent results across cultures, education, social status and personal beliefs. Leading Mind shows how the current events that are impacting our civilization nowadays are the result of our emotional ignorance. It brings to light an urgent call to reform our educational curriculum to teach how our mind works and tools for personal transformation and conflict resolution. Understanding our minds brings tolerance and compassion for all. It gives us the knowledge to change our limiting behaviors. The start of real personal power to direct our lives in the direction that is our authentic individual expression.
Performance Management for the Oil, Gas, and Process Industries: A Systems Approach is a practical guide on the business cycle and techniques to undertake step, episodic, and breakthrough improvement in performance to optimize operating costs. Like many industries, the oil, gas, and process industries are coming under increasing pressure to cut costs due to ongoing construction of larger, more integrated units, as well as the application of increasingly stringent environmental policies. Focusing on the 'value adder' or 'revenue generator' core system and the company direction statement, this book describes a systems approach which assures significant sustainable improvements in the business and operational performance specific to the oil, gas, and process industries. The book will enable the reader to: utilize best practice principles of good governance for long term performance enhancement; identify the most significant performance indicators for overall business improvement; apply strategies to ensure that targets are met in agreed upon time frames. - Describes a systems approach which assures significant sustainable improvements in the business and operational performance specific to the oil, gas, and process industries - Helps readers set appropriate and realistic short-term/ long-term targets with a pre-built facility health checker - Elucidates the relationship between PSM, OHS, and Asset Integrity with an increased emphasis on behavior-based safety - Discusses specific oil and gas industry issues and examples such as refinery and gas plant performance initiatives and hydrocarbon accounting
The fourth edition of this well-established, highly regarded two-volume set continues to provide a fundamental introduction to advanced particle physics while incorporating substantial new experimental results, especially in the areas of CP violation and neutrino oscillations. It offers an accessible and practical introduction to the three gauge theories included in the Standard Model of particle physics: quantum electrodynamics (QED), quantum chromodynamics (QCD), and the Glashow-Salam-Weinberg (GSW) electroweak theory. In the first volume, a new chapter on Lorentz transformations and discrete symmetries presents a simple treatment of Lorentz transformations of Dirac spinors. Along with updating experimental results, this edition also introduces Majorana fermions at an early stage, making the material suitable for a first course in relativistic quantum mechanics. Covering much of the experimental progress made in the last ten years, the second volume remains focused on the two non-Abelian quantum gauge field theories of the Standard Model: QCD and the GSW electroweak theory. A new chapter on CP violation and oscillation phenomena describes CP violation in B-meson decays as well as the main experiments that have led to our current knowledge of mass-squared differences and mixing angles for neutrinos. Exploring a new era in particle physics, this edition discusses the exciting discovery of a boson with properties consistent with those of the Standard Model Higgs boson. It also updates many other topics, including jet algorithms, lattice QCD, effective Lagrangians, and three-generation quark mixing and the CKM matrix. This revised and updated edition provides a self-contained pedagogical treatment of the subject, from relativistic quantum mechanics to the frontiers of the Standard Model. For each theory, the authors discuss the main conceptual points, detail many practical calculations of physical quantities from first principles, and compare these quantitative predictions with experimental results, helping readers improve both their calculation skills and physical insight.
Are you an academic leader or considering taking on a leadership position in the academy? Then this book is for you, even in an era of crisis in the highly-complex higher education sector. A one-size-fits-all leadership philosophy can not meet all the challenges and opportunities facing academic leaders. Rather, successful leaders require a range of approaches and an ample supply of tools to maximize their effectiveness. This volume takes you through a series of balancing acts, each of which helps you to tailor your leadership choices to the issue at hand.It helps leaders to identify your current strengths and comfort zone in a series of dimensions and then encourages you to move beyond those comfort zones and to develop an ever-expanding array of leadership tools and skills. The result will be greater effectiveness in your decision-making, relationships, and management.
How water enables Caribbean and Latinx writers to reconnect to their pasts, presents, and futures. Water is often tasked with upholding division through the imposition of geopolitical borders. We see this in the construction of the Rio Grande/Río Bravo on the US-Mexico border, as well as in how the Caribbean Sea and the Pacific Ocean are used to delineate the limits of US territory. In stark contrast to this divisive view, Afro-diasporic religions conceive of water as a place of connection; it is where spiritual entities and ancestors reside, and where knowledge awaits. Departing from the premise that water encourages confluence through the sustainment of contradiction, Channeling Knowledges fathoms water’s depth and breadth in the work of Latinx and Caribbean creators such as Mayra Santos-Febres, Rita Indiana, Gloria Evangelina Anzaldúa, and the Border of Lights collective. Combining methodologies from literary studies, anthropology, history, and religious studies, Rebeca L. Hey-Colón’s interdisciplinary study traces how Latinx and Caribbean cultural production draws on systems of Afro-diasporic worship—Haitian Vodou, La 21 División (Dominican Vodou), and Santería/Regla de Ocha—to channel the power of water, both salty and sweet, in sustaining connections between past, present, and not-yet-imagined futures.
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