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It is estimated that literally billions of residents in urban and peri-urban areas of Africa, Asia, and Latin America are served by onsite sanitation systems (e.g. various types of latrines and septic tanks). Until recently, the management of faecal sludge from these onsite systems has been grossly neglected, partially as a result of them being considered temporary solutions until sewer-based systems could be implemented. However, the perception of onsite or decentralized sanitation technologies for urban areas is gradually changing, and is increasingly being considered as long-term, sustainable options in urban areas, especially in low- and middle-income countries that lack sewer infrastructures. This is the first book dedicated to faecal sludge management. It compiles the current state of knowledge of the rapidly evolving field of faecal sludge management, and presents an integrated approach that includes technology, management, and planning based on Sandecs 20 years of experience in the field. Faecal Sludge Management: Systems Approach for Implementation and Operation addresses the organization of the entire faecal sludge management service chain, from the collection and transport of sludge, and the current state of knowledge of treatment options, to the final end use or disposal of treated sludge. The book also presents important factors to consider when evaluating and upscaling new treatment technology options. The book is designed for undergraduate and graduate students, and engineers and practitioners in the field who have some basic knowledge of environmental and/or wastewater engineering.
From the author of Bowling Alone and Our Kids, a “sweeping yet remarkably accessible” (The Wall Street Journal) analysis that “offers superb, often counterintuitive insights” (The New York Times) to demonstrate how we have gone from an individualistic “I” society to a more communitarian “We” society and then back again, and how we can learn from that experience to become a stronger, more unified nation. Deep and accelerating inequality; unprecedented political polarization; vitriolic public discourse; a fraying social fabric; public and private narcissism—Americans today seem to agree on only one thing: This is the worst of times. But we’ve been here before. During the Gilded Age of the late 1800s, America was highly individualistic, starkly unequal, fiercely polarized, and deeply fragmented, just as it is today. However as the twentieth century opened, America became—slowly, unevenly, but steadily—more egalitarian, more cooperative, more generous; a society on the upswing, more focused on our responsibilities to one another and less focused on our narrower self-interest. Sometime during the 1960s, however, these trends reversed, leaving us in today’s disarray. In a sweeping overview of more than a century of history, drawing on his inimitable combination of statistical analysis and storytelling, Robert Putnam analyzes a remarkable confluence of trends that brought us from an “I” society to a “We” society and then back again. He draws inspiring lessons for our time from an earlier era, when a dedicated group of reformers righted the ship, putting us on a path to becoming a society once again based on community. Engaging, revelatory, and timely, this is Putnam’s most ambitious work yet, a fitting capstone to a brilliant career.
America's leading expert in educational testing and measurement openly names the failures caused by today's testing policies and provides a blueprint for doing better. 6 x 9.
Fran�ois Hartog explores crucial moments of change in societyÕs Òregimes of historicityÓ or its way of relating to the past, present, and future. Inspired by Arendt, Koselleck, and Ricoeur, Hartog analyzes a broad range of texts, positioning the The Odyssey as a work on the threshold of a historical consciousness and then contrasting it against an investigation of the anthropologist Marshall SahlinsÕs concept of Òheroic history.Ó He tracks changing perspectives on time in Ch‰teaubriandÕs Historical Essay and Travels in America, and sets them alongside other writings from the French Revolution. He revisits the insight of the French Annals School and situates Pierre NoraÕs Realms of Memory within a history of heritage and our contemporary presentism. Our presentist present is by no means uniform or clear-cut, and it is experienced very differently depending on oneÕs position in society. There are flows and acceleration, but also what the sociologist Robert Castel calls the Òstatus of casual workers,Ó whose present is languishing before their very eyes and who have no past except in a complicated way (especially in the case of immigrants, exiles, and migrants) and no real future (since the temporality of plans and projects is denied them). Presentism is therefore experienced as either emancipation or enclosure, in some cases with ever greater speed and mobility and in others by living from hand to mouth in a stagnating present. Hartog also accounts for the fact that the future is perceived as a threat and not a promise. We live in a time of catastrophe, one he feels we have brought upon ourselves.
A jaw-dropping exploration of everything that goes wrong when we build AI systems and the movement to fix them. Today’s “machine-learning” systems, trained by data, are so effective that we’ve invited them to see and hear for us—and to make decisions on our behalf. But alarm bells are ringing. Recent years have seen an eruption of concern as the field of machine learning advances. When the systems we attempt to teach will not, in the end, do what we want or what we expect, ethical and potentially existential risks emerge. Researchers call this the alignment problem. Systems cull résumés until, years later, we discover that they have inherent gender biases. Algorithms decide bail and parole—and appear to assess Black and White defendants differently. We can no longer assume that our mortgage application, or even our medical tests, will be seen by human eyes. And as autonomous vehicles share our streets, we are increasingly putting our lives in their hands. The mathematical and computational models driving these changes range in complexity from something that can fit on a spreadsheet to a complex system that might credibly be called “artificial intelligence.” They are steadily replacing both human judgment and explicitly programmed software. In best-selling author Brian Christian’s riveting account, we meet the alignment problem’s “first-responders,” and learn their ambitious plan to solve it before our hands are completely off the wheel. In a masterful blend of history and on-the ground reporting, Christian traces the explosive growth in the field of machine learning and surveys its current, sprawling frontier. Readers encounter a discipline finding its legs amid exhilarating and sometimes terrifying progress. Whether they—and we—succeed or fail in solving the alignment problem will be a defining human story. The Alignment Problem offers an unflinching reckoning with humanity’s biases and blind spots, our own unstated assumptions and often contradictory goals. A dazzlingly interdisciplinary work, it takes a hard look not only at our technology but at our culture—and finds a story by turns harrowing and hopeful.
A revolutionary new argument from eminent Yale Law professor Daniel Markovits attacking the false promise of meritocracy It is an axiom of American life that advantage should be earned through ability and effort. Even as the country divides itself at every turn, the meritocratic ideal – that social and economic rewards should follow achievement rather than breeding – reigns supreme. Both Democrats and Republicans insistently repeat meritocratic notions. Meritocracy cuts to the heart of who we are. It sustains the American dream. But what if, both up and down the social ladder, meritocracy is a sham? Today, meritocracy has become exactly what it was conceived to resist: a mechanism for the concentration and dynastic transmission of wealth and privilege across generations. Upward mobility has become a fantasy, and the embattled middle classes are now more likely to sink into the working poor than to rise into the professional elite. At the same time, meritocracy now ensnares even those who manage to claw their way to the top, requiring rich adults to work with crushing intensity, exploiting their expensive educations in order to extract a return. All this is not the result of deviations or retreats from meritocracy but rather stems directly from meritocracy’s successes. This is the radical argument that Daniel Markovits prosecutes with rare force. Markovits is well placed to expose the sham of meritocracy. Having spent his life at elite universities, he knows from the inside the corrosive system we are trapped within. Markovits also knows that, if we understand that meritocratic inequality produces near-universal harm, we can cure it. When The Meritocracy Trap reveals the inner workings of the meritocratic machine, it also illuminates the first steps outward, towards a new world that might once again afford dignity and prosperity to the American people.
Noted researcher and scholar Gavriel Salomon sheds new light on the complex relationship between education and communication. His intriguing analysis is based on the unconventional theory that communication is reciprocally interactive. He offers illuminating examples of how expectations, values, and moods alter perceptions and affect learning patterns. '...Communication and Education is an extraordinarily interesting and insightful book that makes a very significant contribution to a neglected area of endeavor...' -- Educational Technology, Spring 1982 'This knack of Salomon's for provoking thought, discourse, and argumentation is one I value highly.' -- Journal of Communication, Spring 1983